Spacecraft Ground Software Engineer II

Spacecraft Ground Software Engineer IIHawthorne, CAQuantum Space is redefining mobility and maneuverability in space. Our high-mobility spacecraft platforms support national security, civil, and commercial missions with unmatched flexibility and propulsion capability. We build fast and iterate quickly.Who We're Looking ForWe are seeking a highly skilled Spacecraft Ground Software Engineer II to lead the development, integration, and operational support of software systems that enable spacecraft testing, mission operations, and real-time ground communications.This role is ideal for an experienced software engineer who thrives at the intersection of distributed systems, mission operations, infrastructure, and real-time data processing. You will play a key role in building the software platforms and operational tooling that support spacecraft integration, command and telemetry workflows, and mission readiness throughout the vehicle lifecycle.You will work closely with flight software, AI&T, mission operations, avionics, and systems engineering teams to develop scalable and reliable ground software solutions that support both integration and on-orbit operations.Where You'll Make an ImpactYou get to build the architecture upon which the ground software will be runYour work directly impacts safety, reliability, and the mission's successGround software touches each part of the mission from testing to on-orbit operationsYou will own major pieces of the architecture end-to-endYou have the opportunity to influence coding standards, architecture, and how we operate as a teamYou get mission-critical responsibility that will support mission operations long after the first launchWhat It TakesBachelor's degree in Computer Science, Engineering, Physics, Mathematics, or a related technical field5+ years of professional experience in full-stack software development, including deployment to production or operational environmentsStrong understanding of networking, data routing, and communication protocolsExperience working with message buses, APIs, and real-time data pipelinesFamiliarity with cloud infrastructure and/or equivalent on-premises environmentsHands-on experience with CI/CD pipelines and modern DevOps practicesProficiency with relational and/or non-relational databasesUnderstanding of ground system architectures, interfaces, and distributed systemsStrong version-control practices using modern source-control workflowsExperience contributing to requirements development, verification, and traceabilityExperience developing and executing software and system-level testsProficiency with Linux environments, command-line workflows, and Bash scriptingStrong technical communication skills, including the ability to communicate operational impacts of technical decisionsStrong documentation practices across operational procedures, interfaces, and system architectureAbility and willingness to support on-call rotations or real-time operational events during critical mission activitiesExperience leading end-to-end system development efforts from design through deployment and operational supportNice-to-Have ExperienceExperience developing ground segment, mission-control, or spacecraft operations softwareUnderstanding of spacecraft command and telemetry systemsFamiliarity with spacecraft operations tools such as Grafana or other monitoring and data-visualization platformsExperience with Atlassian tools such as Jira and ConfluenceExperience with containerization technologies (Docker, Kubernetes)Familiarity with distributed systems and high-availability architecturesExperience supporting operational or mission-critical environmentsExposure to aerospace, defense, robotics, or autonomous systems domainsExperience with Python, Go, Java, C++, or similar backend technologiesWhat You'll GetOwnership – Lead the development of mission-critical ground software that supports spacecraft integration, testing, command and telemetry, and on-orbit operations from concept through deployment.Innovation – Build scalable software platforms, distributed systems, and operational tools that power the next generation of spacecraft missions and enable reliable space operations.Impact – Develop the software infrastructure that connects engineering, integration, and mission operations teams, directly contributing to the success of every spacecraft mission.Growth – Expand your expertise in ground systems, mission operations, cloud infrastructure, and distributed software while influencing technical architecture, engineering standards, and the future of Quantum Space's software ecosystem.Compensation – Competitive salary, equity, and comprehensive benefits including medical, dental, vision, generous leave, HSA, 401(k) matching, and equity sharing.Location: Hawthorne, CABase Salary: $120,000 to $150,000The salary range for this role is an estimate based on a wide range of compensation factors. Actual salary offer may vary based on (but not limited to) work experience, education and/or training, critical skills, and/or business considerations. Highly competitive equity grants are included in the majority of full time offers; and are considered part of Quantum Space's total compensation package.To comply with U.S. Government space technology export regulations, including ITAR, applicants must be a U.S. citizen, lawful permanent resident, protected individual per 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.Apply now. Join us in building the next generation of spacecraft.