ON.energy

Title: Supplier Quality Engineer Location: Atlanta; Houston, Texas, United States; United States Job Description: ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world’s leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities. With real products in the field, we’re scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future. Location- United States, Remote with up to 75% travel Position Summary ON.energy is looking for a skilled Supplier Quality Engineer to support the supplier quality activities related to battery energy storage systems (BESS) across the full equipment lifecycle—from procurement and factory testing to site delivery and installation. In this role, you will work closely with engineering, supply chain, and construction teams in the processes of selecting, auditing and evaluating suppliers, reviewing vendor’s Inspection and Test Plans, coordinating and witnessing Factory Acceptance Testing (FAT), and provide field support during installation and commissioning for key components including batteries, inverters, transformers, switchgear and ATS, and auxiliary systems. This role focuses on preventing quality issues at the source – ensuring suppliers maintain robust manufacturing and test processes – and tracking non-conformances through resolution prior to shipment. This role is best suited for engineers with hands-on experience working with manufacturing suppliers of electrical or industrial equipment. The role focuses on suppliers manufacturing critical electrical equipment used in utility-scale energy storage systems. Key Responsibilities - Drive Supplier Selection, Evaluation and Qualification based on the company’s Supplier Quality processes and tools. - Support the definition and documentation of Supplier Quality processes in compliance with ISO 9001 and other applicable requirements. - Perform supplier process audits at new and existing vendors to evaluate manufacturing processes, production controls, and supplier quality systems in alignment with company standards and ISO 9001 requirements. - Ensure all activities related to the Supplier Audit process are properly maintained and executed, including the Audit Planning and Reporting documentation. - Update the supplier quality database (Documents Control). - Management of supplier related quality issues, guiding the root-cause analysis and implementation of corrective actions and process improvements, ensuring effective and sustainable solutions are in place. - Review and approve supplier quality documentation, including Inspection & Test Plans (ITPs), FAT procedures, Control Plans and / or quality control documentation packages. - Participate in Factory Acceptance Tests (FATs) at OEM and ensure test results and documentation meet approved criteria. - Identify, log, and track non-conformances (NCRs); drive timely root cause analysis and corrective actions with vendors. - Review and validate supplier material traceability records, certificates, and inspection reports. - Collaborate with Engineering and Supply Chain to qualify new vendors and support supplier onboarding. - Provide supplier performance feedback and input to quality metrics and supplier scorecards. - Maintain complete, accurate, and traceable quality documentation packages for each project. - Support development and continuous improvement of quality standards, templates, and best practices across equipment types. - Evaluate supplier manufacturing processes and production controls to ensure suppliers can consistently meet technical and quality requirements. Must Have Qualifications - Bachelor’s degree in Electrical, Industrial, or Quality Engineering (or a closely related technical field) or equivalent hands-on experience working with electrical equipment and systems in a manufacturing or industrial environment - 3-7 years of experience in supplier or product quality engineering within the energy or manufacturing industry - Hands-on experience with electrical power systems, BESS, inverters, transformers, switchgear, or other similar equipment - Experience with supplier process audits including evaluating supplier manufacturing processes (VDA 6.3 or similar process audit frameworks are a plus) - Working knowledge of quality management systems (ISO 9001) and manufacturing quality tools (8D, SPC, PFMEA, control plans, FAI / PPAP) - Familiarity with relevant codes and standards (IEEE 1547, UL 9540/9540A, IEC, ISO 9001, NEC) and general equipment test protocols. - Strong analytical and problem-solving skills with a practical understanding of manufacturing processes - Willingness to travel (up to 75%) to vendor locations (domestic and international) and project sites - Excellent communication and documentation abilities; capable of interfacing effectively with suppliers and cross-functional teams Preferred Qualifications - Experience with Tier 1 energy equipment manufacturers - CQE (Certified Quality Engineer) and ISO 9001 Lead Auditor certification. - Familiarity with quality management tools, NCR tracking tools, and dashboard reporting. - Experience supporting supplier quality activities during New Product Introduction (NPI). For US-based roles - What you’ll get: - Competitive salary + annual performance-based bonus eligibility - Medical, dental, and vision insurance - 401(k) with company match - Paid time off and company holidays For Mexico-based roles - What you’ll get: - Competitive salary + annual performance bonus eligibility - Christmas Bonus (Aguinaldo): 30 days - Major medical expenses and life insurance - Paid time off and holidays (per local policy) For all roles: - Professional development and growth opportunities - Opportunity to grow with a mission-driven team shaping the future of clean energy - Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation. - Accommodations: If you need an accommodation during the application process, email recruitment@onenergystorage.com - Benefits vary by role and location and are subject to change.

Title: Project Manager, Energy Storage Location: Houston, Texas, United States; Mclean, Reston, Virginia, United States Job Description: ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world’s leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities. With real products in the field, we’re scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future. On.Energy is a fast-growing, end-to-end clean energy solution provider that develops, engineers, supplies, constructs, commissions, and operates hybrid and standalone energy storage solutions. We specialize in both front-of-the-meter and behind-the-meter applications for utility and commercial/industrial clients across North and Latin America. With proprietary technology like our On.Command Energy Management System and a presence in the U.S., Mexico, Peru, and Chile, we are rapidly expanding our footprint in the Data Center infrastructure market. Location: Houston, TX (Hybrid) or Mclean, Virginia (Hybrid) or Remote Position Overview: The Project Manager – Data Center Projects is responsible for the full lifecycle execution of battery energy storage system (BESS) and hybrid energy projects for data centers. This role will support the Project Executive and oversees all phases of planning and execution, ensuring projects are delivered safely, on time, within budget, and in compliance with quality and contractual obligations. Key Responsibilities: · Serve as one of the primary points of contact with the client, maintaining alignment across all project stages. · Manage the full scope of project execution, including safety, schedule, budget, engineering, quality, commissioning, and compliance. · Develop, maintain, and monitor project schedules using recognized tools and methodologies. · Own project budgets from initial planning to final close-out, including monthly forecasting and variance tracking. · Identify, assess, and mitigate project risks related to cost, safety, quality, and delivery. · Lead contract negotiations with EPCs, subcontractors, and third-party vendors. · Manage all change orders, RFIs, NCRs, PCNs, and VCNs in a timely and traceable manner. · Oversee invoice review and approvals across all phases of project delivery. · Ensure project documentation, client reporting, and internal reporting is clear, accurate, and timely. · Foster strong relationships with suppliers and partners to improve execution quality and delivery performance. · Support contract close-out and final project documentation handover. Requirements · Bachelor’s Degree in Engineering or related technical field (required). · Minimum of 5 years of progressive experience in energy project management, preferably in battery energy storage or related fields. · Demonstrated experience managing EPC contractors, negotiating construction contracts, and overseeing complex infrastructure projects. · Proficient in project scheduling tools (e.g., MS Project, Primavera) and budget tracking systems. · Deep understanding of project controls, cost forecasting, and risk management best practices. · Proven ability to manage multiple complex projects simultaneously. · Excellent communication and client-facing skills. · Bilingual English/Spanish preferred (not required). · Willingness to travel to project sites in the U.S. and Latin America as needed. For US-based roles - What you’ll get: - Competitive salary + annual performance-based bonus eligibility - Medical, dental, and vision insurance - 401(k) with company match - Paid time off and company holidays For Mexico-based roles - What you’ll get: - Competitive salary + annual performance bonus eligibility - Christmas Bonus (Aguinaldo): 30 days - Major medical expenses and life insurance - Paid time off and holidays (per local policy) For all roles: - Professional development and growth opportunities - Opportunity to grow with a mission-driven team shaping the future of clean energy - Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation. - Benefits vary by role and location and are subject to change.

Title: Project Executive Location: Houston, Texas, United States Job Description: ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world’s leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities. With real products in the field, we’re scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future. On.Energy is a fast-growing, end-to-end clean energy solution provider that develops, engineers, supplies, constructs, commissions, and operates hybrid and standalone energy storage solutions. We specialize in both front-of-the-meter and behind-the-meter applications for utility and commercial/industrial clients across North and Latin America. With proprietary technology like our On.Command Energy Management System and a presence in the U.S., Mexico, Peru, and Chile, we are rapidly expanding our footprint in the Data Center infrastructure market. Position Overview: The Project Executive – Data Center Projects is responsible for the full lifecycle execution of battery energy storage system (BESS) and hybrid energy projects for data centers. This role oversees all phases of planning and execution, ensuring projects are delivered safely, on time, within budget, and in compliance with quality and contractual obligations. Key Responsibilities: - Serve as the primary point of contact with the client, maintaining alignment across all project stages. - Manage the full scope of project execution, including safety, schedule, budget, engineering, quality, commissioning, and compliance. - Develop, maintain, and monitor project schedules using recognized tools and methodologies. - Own project budgets from initial planning to final close-out, including monthly forecasting and variance tracking. - Identify, assess, and mitigate project risks related to cost, safety, quality, and delivery. - Lead contract negotiations with EPCs, subcontractors, and third-party vendors. - Manage all change orders, RFIs, NCRs, PCNs, and VCNs in a timely and traceable manner. - Oversee invoice review and approvals across all phases of project delivery. - Ensure project documentation, client reporting, and internal reporting is clear, accurate, and timely. - Foster strong relationships with suppliers and partners to improve execution quality and delivery performance. - Support contract close-out and final project documentation handover. Qualifications: - Bachelor’s Degree in Engineering or related technical field (required). - Minimum of 5 years of progressive experience in energy project management, preferably in battery energy storage or related fields. - Experience with having direct reports as this position will have a Site Project Manager(s) within their organization - Demonstrated experience managing EPC contractors, negotiating construction contracts, and overseeing complex infrastructure projects. - Proficient in project scheduling tools (e.g., MS Project, Primavera) and budget tracking systems. - Deep understanding of project controls, cost forecasting, and risk management best practices. - Proven ability to manage multiple complex projects simultaneously. - Excellent communication and client-facing skills. - Bilingual English/Spanish preferred (not required). - Willingness to travel to project sites in the U.S. and Latin America as needed. Why Join On.Energy: You’ll be part of a mission-driven team building the clean energy infrastructure of the future. We offer competitive compensation, growth opportunities, and a dynamic international environment where innovation is valued and impact is real. For US-based roles - What you’ll get: - Competitive salary + annual performance-based bonus eligibility - Medical, dental, and vision insurance - 401(k) with company match - Paid time off and company holidays For Mexico-based roles - What you’ll get: - Competitive salary + annual performance bonus eligibility - Christmas Bonus (Aguinaldo): 30 days - Major medical expenses and life insurance - Paid time off and holidays (per local policy) For all roles: - Professional development and growth opportunities - Opportunity to grow with a mission-driven team shaping the future of clean energy - Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation. - Benefits vary by role and location and are subject to change.

Senior Project Manager, Energy Storage Houston, Texas, United States; Reston, Virginia, United States; United States ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world’s leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities. With real products in the field, we’re scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future. On.Energy is a fast-growing, end-to-end clean energy solution provider that develops, engineers, supplies, constructs, commissions, and operates hybrid and standalone energy storage solutions. We specialize in both front-of-the-meter and behind-the-meter applications for utility and commercial/industrial clients across North and Latin America. With proprietary technology like our On.Command Energy Management System and a presence in the U.S., Mexico, Peru, and Chile, we are rapidly expanding our footprint in the Data Center infrastructure market. Location: Houston, TX; Reston, Virginia (Hybrid) or Remote Position Overview: The Project Manager – Data Center Projects is responsible for the full lifecycle execution of battery energy storage system (BESS) and hybrid energy projects for data centers. This role will support the Project Executive and oversees all phases of planning and execution, ensuring projects are delivered safely, on time, within budget, and in compliance with quality and contractual obligations. Key Responsibilities: · Serve as one of the primary points of contact with the client, maintaining alignment across all project stages. · Manage the full scope of project execution, including safety, schedule, budget, engineering, quality, commissioning, and compliance. · Develop, maintain, and monitor project schedules using recognized tools and methodologies. · Own project budgets from initial planning to final close-out, including monthly forecasting and variance tracking. · Identify, assess, and mitigate project risks related to cost, safety, quality, and delivery. · Lead contract negotiations with EPCs, subcontractors, and third-party vendors. · Manage all change orders, RFIs, NCRs, PCNs, and VCNs in a timely and traceable manner. · Oversee invoice review and approvals across all phases of project delivery. · Ensure project documentation, client reporting, and internal reporting is clear, accurate, and timely. · Foster strong relationships with suppliers and partners to improve execution quality and delivery performance. · Support contract close-out and final project documentation handover. Requirements · Bachelor’s Degree in Engineering or related technical field (required). · Minimum of 5 years of progressive experience in energy project management, preferably in battery energy storage or related fields. · Demonstrated experience managing EPC contractors, negotiating construction contracts, and overseeing complex infrastructure projects. · Proficient in project scheduling tools (e.g., MS Project, Primavera) and budget tracking systems. · Deep understanding of project controls, cost forecasting, and risk management best practices. · Proven ability to manage multiple complex projects simultaneously. · Excellent communication and client-facing skills. · Bilingual English/Spanish preferred (not required). · Willingness to travel to project sites in the U.S. and Latin America as needed. For US-based roles - What you’ll get: - Competitive salary + annual performance-based bonus eligibility - Medical, dental, and vision insurance - 401(k) with company match - Paid time off and company holidays For Mexico-based roles - What you’ll get: - Competitive salary + annual performance bonus eligibility - Christmas Bonus (Aguinaldo): 30 days - Major medical expenses and life insurance - Paid time off and holidays (per local policy) For all roles: - Professional development and growth opportunities - Opportunity to grow with a mission-driven team shaping the future of clean energy - Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation. - Accommodations: If you need an accommodation during the application process, email recruitment@onenergystorage.com - Benefits vary by role and location and are subject to change.

Role Description ON.energy is seeking a Commissioning Engineer (Field Engineer / Systems Integrator) to execute system-level commissioning, lead small on-site teams, and drive project milestones across ON.energy’s mission-critical, medium-voltage double-conversion UPS deployments built on utility-scale and C&I BESS equipment (batteries, transformers, PCS, and controls). Reporting to a Senior Commissioning Engineer, you will be trusted to operate autonomously on-site — managing testing, troubleshooting, and documentation while maintaining the highest standards of safety and quality. This is a high-travel, hands-on field role. You will spend the majority of your time on project sites across the U.S. and occasionally internationally. The ideal candidate is technically sharp, highly organized, and comfortable leading a small team in fast-paced construction environments. Key Responsibilities - Commissioning & Testing - Execute system-level commissioning tests including functionality checks, network verification, and performance validation for data center, utility-scale, and C&I BESS projects. - Support FAT validation and site acceptance testing (SAT) in coordination with OEM and owner engineers. - Perform functional testing of inverters, PCS, BMS, EMS/SCADA, protection relays, and associated BOS equipment. - Identify, document, and resolve commissioning deficiencies; manage punch lists through to closeout. - Team & Project Leadership - Manage a subset of the on-site commissioning team (2–10 people), autonomously driving project initiatives as directed by the Senior Commissioning Engineer and management team. - Coordinate daily with EPC contractors, OEM field service engineers, and the ON.energy project and engineering teams to resolve technical challenges and keep milestones on track. - Collaborate with internal and external teams to resolve technical challenges as they arise in the field. - Controls & Systems Integration - Review and validate configurations for PLC, SCADA, EMS, network infrastructure, and related control systems. - Conduct troubleshooting for control system issues, network faults, and inverter problems. - Verify system configuration against design drawings, specifications, and interconnection requirements. - Support integration and testing of SCADA/DMS communications (DNP3, Modbus, etc.) - Safety & Quality - Foster and maintain a culture of safety for all team members on site, owning the Job Hazard Analysis (JHA) and Lockout/Tagout (LOTO) programs. - Support safety inspections and risk assessments throughout the commissioning lifecycle. - Ensure commissioning activities comply with NFPA 70E, NEC, IEEE, and applicable NERC/FERC standards. - Provide field reports and maintain thorough, audit-ready documentation for all commissioning activities. Qualifications - 3–6 years of hands-on commissioning experience on BESS, solar + storage, or utility-scale renewable energy projects. - Direct experience with battery storage systems including BMS, PCS/inverter, and EMS/SCADA commissioning. - Proficiency reading and interpreting electrical schematics, single-line diagrams, and P&IDs. - Working knowledge of protection relay testing, CT/PT verification, and DC/AC high-voltage systems. - Strong technical writing skills; ability to produce clear field reports and commissioning documents. - Valid driver’s license and US passport. - Ability to travel >80% of the time. Preferred Qualifications - Hands-on experience with one or more major BESS OEMs (Tesla Megapack, BYD, CATL, Sungrow, or similar). - Familiarity with SCADA communication protocols: DNP3, Modbus TCP/RTU, etc. - Familiarity with utility interconnection processes (distribution and transmission). - NETA, NICET, or relevant electrical certifications. - OSHA 10 or OSHA 30 certification; NFPA 70E training. - Bachelor’s degree in electrical engineering, Power Systems, or a related technical field (or equivalent field experience). Soft Skills - Technically sharp, highly organized, and comfortable leading a small team in fast-paced construction environments. - Strong communicator across EPC, OEM, and internal stakeholders. - Autonomous and accountable. - Safety- and quality-first mindset. Benefits - Competitive base salary + annual performance-based bonus eligibility. - Medical, dental, and vision insurance. - 401(k) with company match. - Paid time off and company holidays. - Per diem eligibility while traveling to project sites. - Professional development and growth opportunities. - Opportunity to grow with a mission-driven team shaping the future of clean energy. Equal Opportunity ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation. Accommodations If you need an accommodation during the application process, email recruitment@on.energy.

Role Description The Senior Electrical Specialist serves as ON.energy’s qualifying master electrician of record in the State of Texas and the on-site electrical subject matter expert for AI UPS deployments at hyperscale data center campuses. Holding (and “hanging”) an active Texas Master Commercial Electrician license under ON.energy for the duration of employment is a core function of the role and a condition of hire. This is a high-travel, hands-on field role and an individual contributor position with no direct reports. The Specialist is the primary escalation path for electrical issues during commissioning — validating workmanship and code compliance, witnessing and signing off on key electrical tests, and driving issues to resolution with EPCs, AHJs, utilities, and OEMs on aggressive schedules. The ideal candidate brings deep field electrical experience and the authority to hold the line on safety and code compliance. Key Responsibilities - License of Record & Electrical Authority - Serve as ON.energy’s qualifying master electrician of record in Texas. - Act as the on-site electrical subject matter expert and primary escalation path for electrical issues during commissioning. - Coach EPC field crews and ON.energy field staff on electrical safety, code compliance, and quality standards. - Field Inspection & Verification - Travel to project sites across the U.S. to investigate and resolve electrical issues. - Validate that installations meet NEC, NFPA 70E, IEEE, AHJ, and ON.energy standards. - Witness, verify, and sign off on key electrical commissioning activities. - Ensure all work is compliant with relevant codes and internal standards. - Coordination & Issue Resolution - Partner with EPC contractors, electrical subcontractors, utility representatives, AHJs, and OEM field service engineers. - Review electrical drawings and flag issues back to engineering before they reach the field. - Permits & Documentation - Pull, sponsor, and close out electrical permits as required by AHJs. - Capture electrical findings, deficiencies, root-cause analyses, and corrective actions. Qualifications - Active Texas Master Electrician license — Commercial (in good standing). - Willingness to serve as ON.energy’s qualifying master electrician of record in Texas. - 10+ years of progressive electrical experience. - Hands-on experience with medium-voltage and low-voltage electrical systems. - Direct field experience with large-scale electrical equipment. - Strong working knowledge of NEC, NFPA 70E, IEEE, and OSHA standards. - Ability to read and interpret electrical drawings and documentation. - Comfort working outdoors in all weather conditions on active construction sites. - Strong written documentation skills and proficiency with Microsoft Office. - Ability to travel to project sites across the U.S. at least 50% of the time. - Valid U.S. driver’s license. - Excellent communication, problem-solving, and cross-functional coordination skills. Requirements - Experience commissioning BESS, AI UPS, solar, wind, or other utility-scale energy infrastructure projects. - Experience working on EPC or design-build projects in critical infrastructure. - Familiarity with commissioning protocols and QA/QC procedures for electrical systems. - Reciprocal master electrician licenses in additional U.S. states. - Familiarity with power system study tools such as ETAP or SKM. - OSHA 30, NFPA 70E qualified person training, CPR/First Aid, and similar field safety certifications. - Prior experience as the qualifying master electrician of record for an electrical contractor. Benefits - Competitive base salary + annual performance-based bonus eligibility. - Medical, dental, and vision insurance. - 401(k) with company match. - Paid time off and company holidays. - Per diem eligibility while traveling to project sites. - Professional development and growth opportunities. - Opportunity to grow with a mission-driven team shaping the future of clean energy.

ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world’s leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities. With real products in the field, we’re scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future. Site Project Manager, Energy Storage Location: This is a remote/site-based role with the ability to travel and be located at project sites across the U.S (many projects in Texas). Position Overview: The Site Project Manager for our Data Center Projects is responsible for leading the full lifecycle execution of Battery Energy Storage System (BESS) and hybrid energy projects at the site level for data centers. This role is integral to the successful delivery of complex energy infrastructure, beginning with site mobilization and construction planning through execution, commissioning support, and project closeout. Reporting directly to the Project Executive, this role oversees all on-site activities, managing teams and subcontractors to ensure projects are completed safely, on time, within budget, and in compliance with quality standards and contractual obligations. The Site Project Manager works closely with the Commissioning Manager to coordinate system turnover activities, including managing documentation, overseeing on-site vendor activities, facilitating punch list resolution, and aligning the general contractor’s efforts with the needs of the commissioning team. Key Responsibilities: - Serve as the jobsite primary point of contact with the client, maintaining alignment across all project stages. - Supporting the Project Executive in delivering the full scope of project execution, including safety, schedule, budget, engineering, quality, commissioning, and compliance. - Develop, maintain, and monitor project schedules using recognized tools and methodologies. - Support with execution to align with project budgets from planning to final close-out, including monthly forecasting and variance tracking. - Identify, assess, and mitigate jobsite level project risks related to cost, safety, quality, and delivery. - Oversee daily on-site operations by monitoring General Contractor and subcontractor activities to ensure alignment with project scope, safety requirements, and quality expectations. - Oversee vendor on-site activities to ensure adherence to site safety rules, quality standards, and equipment commissioning timelines. - Lead and facilitate regular coordination meetings with the General Contractor, subcontractors, and client teams to track progress, resolve issues, and align on upcoming work. - Conduct routine site walks to observe construction activities, validate compliance with design documents, and identify potential risks or deviations early. - Manage field quality activities include coordinating equipment receipt inspections, managing installation inspections, and ensuring documentation for quality reporting is maintained. - Support the Project Executive in managing all change orders, RFIs, NCRs, PCNs, and VCNs in a timely and traceable manner. - Ensue daily JSA/JHAs are in place, morning toolbox meetings occur, safety and commissioning teams are aligned prior to the start of daily activities, end of day meeting to ensure alignment on next days activities and goals. - Foster strong relationships with clients, suppliers and partners to improve execution quality and delivery performance. - Support Project Executive in validating subcontractor invoices and payment applications by cross-referencing with field progress and contractual terms. - Collaborate closely with safety personnel and commissioning teams to ensure daily readiness, compliance with site safety protocols, and startup of new systems. - Coordinate closely with the Commissioning Site Manager to align construction activities with system readiness, turnover packages, and commissioning schedules - Support contract close-out and final project documentation handover. Qualifications: - Bachelor’s Degree in Engineering or related technical field (required). - Minimum of 5 years of progressive experience in energy project management, preferably in battery energy storage or related fields. - Demonstrated experience managing EPC contractors and overseeing complex infrastructure projects at project sites. - Proficient in project scheduling tools (e.g., MS Project, Primavera) and budget tracking systems. - Deep understanding of project controls, cost forecasting, and risk management best practices. - Proven ability to manage multiple complex projects simultaneously. - Excellent communication and client-facing skills. - Bilingual English/Spanish preferred (not required). For US-based roles - What you’ll get: - Competitive salary + annual performance-based bonus eligibility - Medical, dental, and vision insurance - 401(k) with company match - Paid time off and company holidays For Mexico-based roles - What you’ll get: - Competitive salary + annual performance bonus eligibility - Christmas Bonus (Aguinaldo): 30 days - Major medical expenses and life insurance - Paid time off and holidays (per local policy) For all roles: - Professional development and growth opportunities - Opportunity to grow with a mission-driven team shaping the future of clean energy - Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation. - Accommodations: If you need an accommodation during the application process, email recruitment@onenergystorage.com - Benefits vary by role and location and are subject to change.

ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world’s leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities. With real products in the field, we’re scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future. We are seeking a Senior AWS Cloud / DevOps / Platform Engineer who operates with a high level of autonomy and technical leadership to design, build, and operate scalable, secure AWS environments. This role is ideal for experienced engineers who not only have deep hands-on AWS expertise, but can also independently drive architecture decisions, lead implementations end-to-end, and proactively identify improvements across cloud infrastructure, networking, and automation. You will partner with DevOps, Security, and Application teams while serving as a key technical owner for cloud platform reliability, scalability, and performance. Key Responsibilities - Lead the design, deployment, and ongoing optimization of AWS infrastructure using Infrastructure as Code (IaC) (CDK, CloudFormation, Terraform) - Own AWS networking architecture and implementation, including: - VPC design, subnet strategy, and routing - Client VPN and site-to-site VPN - Internet Gateways, NAT Gateways - Security Groups and Network ACLs - VPC Peering, Transit Gateway, and PrivateLink - Architect and support hybrid and multi-account AWS environments at scale - Independently diagnose and resolve complex networking issues, including VPN, Direct Connect, and routing challenges - Drive CI/CD and infrastructure automation initiatives in collaboration with DevOps teams - Proactively monitor and optimize cloud environments for performance, cost, scalability, and availability - Lead incident response, root cause analysis, and implementation of preventive measures - Ensure adherence to AWS security best practices and compliance standards - Produce and maintain high-quality technical documentation and architectural diagrams Required Skills & Experience - 5–8+ years of experience in cloud, infrastructure, or DevOps engineering - Strong hands-on expertise with AWS services, including: - EC2, VPC, IAM, ALB/NLB, Route 53 - S3, RDS, CloudWatch - Advanced networking knowledge, including: - TCP/IP, DNS, HTTP/S - CIDR design, subnetting, and routing strategies - Firewalls, load balancing, and secure network design - Proven experience designing and managing Infrastructure as Code solutions - Strong Linux systems knowledge - Demonstrated ability to independently troubleshoot and resolve complex system and network issues - Experience operating in multi-account AWS environments (AWS Organizations, cross-account access) Education (Required) - Bachelor’s degree in Computer Science, Engineering, Information Systems, or a related technical field from an accredited university in LATAM (e.g., Argentina, Chile, México, or equivalent) is required Soft Skills - Strong ownership mindset with the ability to work independently and drive outcomes - Excellent problem-solving and analytical skills - Ability to clearly communicate complex technical concepts in English - Proactive, self-directed, and highly accountable - Collaborative approach with the ability to influence across teams For US-based roles - What you’ll get: - Competitive salary + annual performance-based bonus eligibility - Medical, dental, and vision insurance - 401(k) with company match - Paid time off and company holidays For Mexico-based roles - What you’ll get: - Competitive salary + annual performance bonus eligibility - Christmas Bonus (Aguinaldo): 30 days - Major medical expenses and life insurance - Paid time off and holidays (per local policy) For all roles: - Professional development and growth opportunities - Opportunity to grow with a mission-driven team shaping the future of clean energy - Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation. - Accommodations: If you need an accommodation during the application process, email recruitment@onenergystorage.com - Benefits vary by role and location and are subject to change.

Role Description We are seeking a AWS Cloud / DevOps / Platform Engineer who can operate with a high degree of ownership and independence while contributing to the design, build, and operation of scalable AWS environments. This role is suited for early-career engineers who already have hands-on AWS experience and are ready to take on more responsibility in managing cloud infrastructure end-to-end. You will partner with DevOps, Security, and Application teams, while also being trusted to drive tasks independently—from implementation through troubleshooting and optimization. Key Responsibilities - Design, deploy, and maintain AWS cloud infrastructure using Infrastructure as Code (IaC) (e.g., CDK, CloudFormation, Terraform) with minimal supervision - Independently manage and optimize AWS networking components, including: - VPCs, subnets, and route tables - Client VPN and site-to-site VPN - Internet Gateways and NAT Gateways - Security Groups and Network ACLs - VPC Peering, Transit Gateway, and PrivateLink - Support and troubleshoot hybrid and multi-account AWS environments - Own configuration and resolution of VPN, Direct Connect, and routing issues - Collaborate with DevOps teams on CI/CD pipelines, while independently executing assigned automation tasks - Monitor cloud resources and proactively optimize for performance, cost, and availability - Lead initial troubleshooting for incidents and contribute to root cause analysis - Apply AWS security and networking best practices in day-to-day operations - Create and maintain clear technical documentation with minimal guidance Qualifications - 3–5 years of experience in cloud, infrastructure, or DevOps engineering - Hands-on experience with AWS services, especially: - EC2, VPC, IAM, ALB/NLB, Route 53 - S3, RDS, CloudWatch - Strong networking fundamentals, including: - TCP/IP, DNS, HTTP/S - CIDR, subnetting, and routing - Firewalls and load balancing concepts - Experience with Infrastructure as Code (Terraform, CloudFormation, or CDK) - Working knowledge of Linux systems - Proven ability to troubleshoot network connectivity and performance issues independently - Familiarity with multi-account AWS environments Education - Degree in Computer Science, Engineering, Information Systems, or a related technical field from an accredited university or technical institute in LATAM (Argentina, Chile, México, or equivalent) preferred - Alternatively, completion of a recognized technical or vocational program (e.g., coding bootcamp, cloud engineering program) from a reputable LATAM institution, combined with relevant hands-on experience - AWS certifications (e.g., Cloud Practitioner, Solutions Architect Associate) or equivalent training strongly preferred - Demonstrated commitment to continuous learning through certifications, labs, or real-world projects Soft Skills - Ability to work independently, prioritize tasks, and take ownership of deliverables - Strong problem-solving and analytical mindset - Clear communication of technical concepts in English - Proactive, self-driven, and collaborative approach - Growth mindset with a strong interest in cloud and networking domains Benefits - For US-based roles: - Competitive salary + annual performance-based bonus eligibility - Medical, dental, and vision insurance - 401(k) with company match - Paid time off and company holidays - For Mexico-based roles: - Competitive salary + annual performance bonus eligibility - Christmas Bonus (Aguinaldo): 30 days - Major medical expenses and life insurance - Paid time off and holidays (per local policy) - For all roles: - Professional development and growth opportunities - Opportunity to grow with a mission-driven team shaping the future of clean energy Equal Opportunity ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation. Accommodations If you need an accommodation during the application process, email recruitment@onenergystorage.com Benefits vary by role and location and are subject to change.