AST SpaceMobile

Role Description We are seeking a dynamic and highly adaptable Human Resources Business Partner (HRBP) to support local business operations and serve as a trusted advisor to leadership. The ideal candidate will bring strong expertise in employee relations, compliance, and HR program execution, with the ability to operate independently and drive initiatives in a fast-paced, evolving environment. - Partner with leadership to align HR strategies with business objectives. - Provide coaching and guidance on employee relations, performance management, and organizational effectiveness. - Analyze HR data and trends to support decision-making and improve workforce outcomes. - Serve as the primary resource for employee relations matters, including investigations, conflict resolution, and workplace issue management. - Support disciplinary actions and terminations while ensuring consistency and compliance. - Ensure compliance with applicable employment laws, regulations, and company policies. - Oversee daily HR operations, including employee lifecycle administration and benefits coordination. - Maintain accurate and compliant employee records within HR systems. - Track and ensure completion of required training programs, including safety, compliance, and certification requirements. - Support employee development, performance management, and succession planning initiatives. - Drive employee engagement, retention, and recognition programs. - Support hiring activities as needed, including interview coordination and onboarding. - Coordinate background checks and employment eligibility verification processes. Qualifications - Bachelor’s degree in Human Resources, Business Administration, or a related field required. - A minimum of 5 years of progressive Human Resources experience. - Experience supporting technical, engineering, manufacturing, or similar environments (preferred). - Experience working in a high-growth or evolving organization (preferred). - Strong interpersonal and relationship-building skills. - Proven ability to collaborate effectively with cross-functional teams and leadership. - Excellent written and verbal communication skills. - Strong conflict resolution, negotiation, and problem-solving abilities. - High level of integrity, professionalism, and discretion. - Strong organizational and time-management skills with the ability to manage competing priorities. - Analytical mindset with strong decision-making capabilities. Requirements - Microsoft Office Suite (Excel, Word, PowerPoint, Outlook). - Human Resource Information Systems (HRIS). - Applicant tracking and performance management systems (as applicable). - Data reporting and analytics tools (preferred). - Ability to work in a standard office or remote environment. - Ability to use a computer and other office equipment for extended periods. - Ability to communicate effectively via phone, video, and in-person meetings. - Flexibility to work outside of standard business hours as needed to support a global workforce across multiple time zones. - Ability to travel to support business needs. Company Description AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today’s five billion mobile subscribers and finally bring broadband to the billions who remain unconnected.

• Design and develop mechanical systems and mechanisms, including performing analysis and trade studies to optimize performance, efficiency, and manufacturability • Execute detailed engineering design work in accordance with established standards, procedures, and program requirements • Collaborate with internal teams to support system integration, assembly, and testing activities • Partner with external vendors by defining requirements, reviewing designs, and tracking development progress • Develop and maintain mechanical documentation, including requirements, drawings, interface definitions, and test procedures • Define and validate mechanical interfaces between subsystems and components • Support qualification testing (e.g., vibration, thermal, environmental) and evaluate results • Troubleshoot hardware issues, perform root-cause analysis, and implement corrective actions • Present technical findings and design updates during reviews with cross-functional teams and stakeholders • Identify and implement process improvements, new technologies, or innovative design approaches

• Install, configure, and maintain satellite communication gateway infrastructure supporting low-earth orbit (LEO) satellite networks. • Diagnose and troubleshoot gateway components, including antennas, RF systems, frequency converters, and associated hardware. • Perform testing and analysis using RF diagnostic tools and measurement equipment. • Conduct integration, commissioning, and validation of gateway components to ensure optimal system performance. • Monitor system health and identify corrective actions to minimize operational disruptions. • Provide remote technical support to field locations and operational teams. • Document maintenance activities, system configurations, and troubleshooting procedures. • Collaborate with cross-functional engineering and operations teams to resolve technical issues. • Support equipment inventory management and asset tracking. • Travel domestically and internationally to support installations, upgrades, and maintenance activities as required.

• Define and own the overall service acceptance strategy, governance model, and execution roadmap • Lead and develop a global team of acceptance managers, test leads, and engineers across multiple regions • Establish validation standards, acceptance criteria, and structured test frameworks • Oversee execution of validation activities including regression, interoperability, and performance testing • Ensure acceptance processes meet defined performance requirements, SLAs, and compliance standards • Develop and implement automation strategies for regression and acceptance testing • Coordinate cross-functional teams to ensure alignment across system integration, deployment, and validation efforts • Manage engagement with external partners and ensure successful integration and validation across multiple systems • Drive defect tracking, root cause analysis (RCA), and resolution workflows to ensure high-quality outcomes • Ensure readiness documentation, test results, and acceptance artifacts are complete and auditable • Lead transition of accepted services into operational environments, ensuring stability and readiness • Provide executive-level reporting on acceptance progress, risks, and performance metrics • Drive continuous improvement of validation processes, frameworks, and operational efficiency

• Lead planning, governance, and execution of a portfolio of cross-functional technical programs • Establish portfolio-level visibility into program health, risks, dependencies, and milestones • Define and implement PMO frameworks, methodologies, and operating standards • Drive prioritization, sequencing, and trade-off decisions across multiple programs • Manage cross-program dependencies and coordinate resolution of risks across teams and stakeholders • Develop and maintain executive-level reporting, dashboards, and program narratives • Lead portfolio planning cycles, aligning resource capacity with program demand • Drive continuous improvement of program management processes, tools, and reporting practices • Mentor and develop program and project managers, establishing best practices across the PMO

• Manage procurement processes for IT equipment, software licenses, and related services • Process purchase requests and ensure timely, accurate order fulfillment and delivery • Identify, evaluate, and maintain relationships with external vendors and suppliers • Negotiate pricing, contracts, and service agreements to achieve cost efficiencies • Monitor procurement budgets and track expenditures to ensure alignment with financial guidelines • Identify opportunities for cost savings without compromising quality or service levels • Ensure all purchasing activities comply with internal policies and applicable regulations • Maintain accurate documentation of purchase orders, invoices, contracts, and vendor records • Collaborate cross-functionally with IT, finance, and other internal teams to support asset lifecycle and inventory management • Conduct market research to stay informed on technology trends, pricing, and vendor options • Track and manage software license usage, renewals, and compliance requirements

Role Description We are seeking a detail-oriented and compliance-driven Travel & Expense Analyst to support corporate travel and expense operations. This role is responsible for auditing expenses, ensuring adherence to company policies, and supporting travel request approvals. The ideal candidate will provide guidance to travelers, maintain accurate records, and deliver reliable support, including weekend coverage for urgent travel needs. Key Responsibilities: - Review and audit corporate expenses to ensure compliance with company travel and expense policies - Identify, investigate, and resolve flagged transactions, escalating complex cases as needed - Communicate with travelers to obtain clarification or supporting documentation for non-compliant expenses - Maintain accurate records of expense reviews, decisions, and resolutions - Review and approve travel requests in alignment with company policies and guidelines - Identify out-of-policy travel requests and determine appropriate action (approve, reject, or escalate) - Ensure timely processing of travel requests to avoid delays in booking - Provide weekend travel support, serving as a point of contact for urgent traveler needs - Assist with travel changes, cancellations, and issue resolutions during off-hours - Guide travelers on the use of travel and expense platforms and processes - Escalate complex travel or system-related issues to appropriate stakeholders Qualifications - Bachelor’s degree in Accounting, Finance, Business Administration, or a related field preferred (or equivalent relevant experience) - A minimum of 1–2 years of experience in expense management, auditing, travel support, or administrative operations Preferred Qualifications: - Familiarity with expense management and travel booking systems - Background in accounting, audit, or finance-related functions - Experience in customer-facing, administrative, or help desk roles - Exposure to policy compliance and operational review processes Soft Skills: - Strong attention to detail and accuracy in operational tasks - Excellent written and verbal communication skills - Strong organizational skills with the ability to manage multiple priorities - Proactive, reliable, and able to work independently when needed - Service-oriented mindset with a focus on delivering a positive user experience - Ability to handle sensitive situations professionally and tactfully Technology Stack - Expense management platforms (e.g., Ramp or similar tools) - Travel booking and approval systems (e.g., Perk or similar tools) - Microsoft Office Suite (Excel, Outlook, Word) - Reporting and data tracking tools - Collaboration platforms (e.g., Teams or similar tools) Physical Requirements - Ability to work in a standard office or remote environment and use a computer for extended periods - Ability to manage multiple tasks in a fast-paced, deadline-driven environment - Availability to provide weekend support coverage as needed

Role Description We are seeking an experienced RF & Network Performance Certification Lead to drive end-to-end certification of device RF behavior and network performance across both lab and real-world environments. This role is responsible for ensuring devices meet defined RF, protocol, and performance standards prior to launch and throughout their lifecycle. As a key technical leader, this individual will serve as the authority for RF and network performance readiness—ensuring seamless interoperability and delivering reliable, high-quality connectivity experiences. Key Responsibilities - Lead end-to-end RF and network performance certification across lab and field validation stages - Define certification criteria, entry/exit gates, and performance acceptance thresholds - Oversee lab-based testing including RF performance, throughput, latency, mobility, and reliability - Drive field validation activities to assess device behavior in real-world network conditions - Serve as a technical gatekeeper for launch readiness, supporting Go/No-Go decisions - Collaborate with external partners and internal teams to align on performance requirements and standards - Establish and monitor key RF/network performance KPIs across all validation phases - Analyze performance data, identify gaps, and lead root cause investigations - Drive continuous improvement initiatives to optimize device performance and certification processes - Manage defect lifecycle including triage, tracking, and resolution of RF/network issues - Support post-launch monitoring, updates, and re-certification activities - Maintain certification documentation, frameworks, and governance standards Qualifications - Bachelor’s degree in Electrical Engineering, Telecommunications, or a related field required - Advanced degree preferred - Minimum of 12 years of experience in RF engineering, wireless systems, or network performance - At least 5 years in a leadership or technical lead capacity - Experience with modern wireless technologies (e.g., cellular or satellite systems) preferred Preferred Qualifications - Strong expertise in RF testing methodologies and performance analysis - Experience supporting device certification and carrier or network acceptance processes - Familiarity with industry-standard testing tools and performance benchmarking - Experience collaborating with cross-functional teams and external partners Soft Skills - Strong analytical and problem-solving capabilities - Proven ability to collaborate effectively across cross-functional teams - Excellent written and verbal communication skills - Meticulous attention to detail to ensure accuracy in testing and documentation - Ability to operate effectively in fast-paced, dynamic environments Technology Stack - RF test equipment and over-the-air (OTA) systems - Network performance and monitoring tools - Protocol analyzers and telemetry platforms - Data analysis and visualization tools Physical Requirements - Ability to work in a standard office or lab environment - Ability to use a computer and testing equipment for extended periods - May require occasional travel to test sites or partner locations This job description may not be inclusive to the duties and responsibilities listed. Additional tasks may be assigned to the employee from time to time or the scope of the job may change as needed by business demands. AST SpaceMobile is an Equal Opportunity, at will Employer; employment is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Role Description We are looking for a Software Engineer to join our Telco Software Development team, responsible for designing and building innovative telecom software solutions and components. This is a hands‑on engineering role for individuals motivated by creating genuinely novel software in a fast‑moving, greenfield environment. You will be part of a small, high‑ownership team where your code is deployed into real network infrastructure, and where the technical decisions you help make directly shape the long‑term differentiation of the platform. Candidates may come from a strong software engineering background (systems and backend, ideally with telecom exposure) or from related engineering disciplines with solid software development skills. - Design, build, and deploy telecom software components across the platform - Translate architectural designs, interface control documents (ICDs), and functional and nonfunctional requirements into clean, well-tested, production ready code - Develop modular, maintainable software in accordance with established coding standards, with clear documentation and meaningful code comments - Implement and maintain integration tests, regression test suites, and performance benchmarks for developed components - Troubleshoot and resolve issues across the software stack, including protocol behavior, interface mismatches, performance bottlenecks, and deployment failures - Participate in architecture, design, and code reviews, providing and incorporating constructive technical feedback - Support system level integration and acceptance testing to ensure delivered software meets defined quality and performance criteria - Contribute to the team’s agile delivery process, including sprint planning, backlog refinement, and reliable delivery against milestones - Use, maintain, and continuously improve CI/CD pipelines, automated test frameworks, and containerized development environments - Maintain technical documentation such as component designs, API contracts, test results, and operational runbooks - Collaborate with cross functional teams to clarify requirements, validate assumptions, and ensure solutions meet operational and business needs Qualifications - Bachelor’s or Master’s degree in Computer Science, Telecommunications Engineering, or a related field — or equivalent professional experience - A minimum of 3+ years of professional software development experience – exposure to telecom or network related development projects is a plus - Strong proficiency in either C/C++ or Go – experience or interest to master Rust is a plus - Proficiency in Bash/Python for scripting, tooling, and test automation - Solid command of data structures, algorithms, concurrency, memory management, and system design for high-performance or low-latency applications - Good understanding of networking concepts — TCP/IP stack, socket programming, protocol design, and inter-process communication patterns relevant to network software - Proficient with Git - comfortable working in a team environment with code review, branching strategies, and CI/CD workflows - Comfortable developing and debugging in Linux/Unix environments - Experience writing unit tests, integration tests, and contributing to test automation frameworks - English proficiency at B2 level or above; able to collaborate effectively with peers and architects in a globally distributed team Requirements - Strong analytical and problem-solving skills - able to break down complex, under-defined problems and deliver working software iteratively - High ownership mentality - take personal responsibility for the quality and correctness of your own work, not just task completion - Collaborative and communicative - actively participates in design discussions, code reviews, and cross-functional conversations - Curious and self-directed - proactively learns domain context (telecom protocols, network architecture) beyond what is immediately required for the next ticket - Comfortable with ambiguity and greenfield work - able to operate effectively when specifications are evolving and there is no legacy codebase to reference - Attention to detail in code quality, test coverage, and documentation Technology Stack - Primary Languages: C/C++, Go, Rust, Python (scripting/testing) - Docker, Kubernetes, Helm - GCC/Clang, cross-compilation toolchains where applicable - GitHub Actions / GitLab CI, ArgoCD, automated test pipelines - Git (GitHub / GitLab) - gRPC, RESTful APIs, Kafka - Prometheus, Grafana - Jira, Confluence - Markdown, Mermaid, PlantUML Physical Requirements - Ability to work in a standard office or remote home-office environment and use a computer for extended periods - Ability to participate in occasional after-hours incident response actions

Role Description We are seeking a QA & Test Engineer to own product validation, verification, and quality engineering for all software delivered by our internal development teams. You will define and execute test strategies, design and build test cases and automated regression suites, manage test environments, track and drive defect resolution, and serve as the team’s formal authority on what has been proven to work before software ships. The right candidate brings solid software testing experience — ideally in a telecom, protocol stack, or network software context — combined with the technical depth to derive meaningful test cases from protocol specifications, ICDs, and architectural design documents. - Define, own, and maintain the overall test strategy for the internal software products - Produce test plans for each major release and milestone, specifying scope, approach, entry and exit criteria, test types (functional, integration, regression, performance, end-to-end), and risk areas - Execute manual and automated test cycles, document results rigorously, and provide clear pass/fail reports with supporting evidence - Design and execute negative testing, boundary condition testing, protocol edge-case scenarios, and fault injection tests to validate system resilience, error handling, and graceful degradation across all product areas - Develop and maintain the test tooling, test environments and simulation infrastructure needed to execute tests - Integrate automated test suites into CI/CD pipelines and monitor test results, coverage trends, and flakiness over time, driving continuous improvement in automation reliability - Maintain a living test documentation library: test plans, test cases, execution results, and release readiness assessments, kept current as software evolves across sprints and milestones - Support post-deployment validation and smoke testing to confirm that released software operates correctly in production and staging network environments Qualifications - Bachelor’s degree in Computer Science, Software Engineering, Telecommunications Engineering, or a related technical field — or equivalent professional experience. - A minimum of 4+ years of professional experience in software quality assurance and test engineering, with demonstrated experience testing complex, integration-heavy software systems. - Experience testing telecom software, protocol stack implementations, or network elements is a plus. - Proven ability to define test strategies, write detailed test plans, and design test cases from functional specifications, architectural design documents, and interface control documents (ICDs) - Experience testing software against defined interface specifications or protocol standards; able to derive test cases from low-level technical documents such as ICDs, state machine diagrams, or 3GPP-style specifications - Hands-on experience building and maintaining automated test suites using Python-based frameworks (pytest, Robot Framework, or equivalent); able to write clean, maintainable test automation code - Experience designing and managing test environments, including stubs, mock services, and simulators, for testing networked software in isolation from live dependencies - Disciplined approach to defect logging, triage, tracking, and verification using standard issue-tracking tools (Jira or equivalent) - Experience in integrating automated tests into CI/CD pipelines and maintaining quality gates (GitHub Actions, GitLab CI, Jenkins, or equivalent) - Comfortable executing tests, debugging issues, and managing test tooling in Linux/Unix environments; familiarity with command-line debugging and log analysis - Ability to read C or Go source code to understand component behavior when documentation is incomplete or ambiguous - Experience designing and executing performance, load, or stress tests for high-throughput or low-latency networked software components (e.g. using Locust, k6, iPerf, or custom tooling) - Experience with dedicated test case management platforms (TestRail, Xray for Jira, Zephyr, or equivalent) - English proficiency at B2 level or above Requirements - Strong problem-solving mindset with a bias toward automation and operational efficiency - Collaborative and communicative — comfortable working in a globally distributed team - Ownership mentality - take responsibility for end-to-end reliability of systems under your care - Adaptable and self-directed, with the ability to manage competing priorities in a fast-paced environment - Meticulous attention to detail in documentation, change management, and operational procedures Technology Stack - Python (pytest, Robot Framework, or equivalent), C, Go and Rust - gRPC, REST API testing tools (Postman, requests library) - iPerf, Locust, k6, or custom tooling for throughput and latency validation - GitHub Actions, GitLab CI, Jenkins, ArgoCD - Docker, K8s (test environment provisioning and management) - Prometheus, Grafana, structured log analysis (ELK stack or equivalent) for diagnosing test failures in deployed environments - Git (GitHub / GitLab) - Confluence, test case management tools (e.g. TestRail, Xray, or equivalent) Physical Requirements - Ability to work in a standard office or remote home-office environment and use a computer for extended periods - Ability to participate in occasional after-hours incident response actions