ON.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.