{"schemaVersion":"jobsearcher.job.v1","id":"f3eaef9f1b8b83d13a260d6c","url":"https://jobsearcher.com/jobs/f3eaef9f1b8b83d13a260d6c","canonicalUrl":"https://jobsearcher.com/jobs/f3eaef9f1b8b83d13a260d6c","title":"Senior Software Engineer – Test/Internal Tooling","description":"Parallel Systems is pioneering autonomous battery-electric rail vehicles designed to transform freight transportation by shifting portions of the $900 billion U.S. trucking industry onto rail. Our innovative technology offers cleaner, safer, and more efficient logistics solutions. Join our dynamic team and help shape a smarter, greener future for global freight.\nSenior Software Engineer – Test/Internal Tooling\nParallel Systems is seeking a Senior Software Engineer to design, develop, and maintain critical test software/infrastructure for an autonomous rail vehicle. In this role, you will work with systems required to ensure that our autonomous rail vehicles satisfy all regulatory, technical, and safety requirements.\nThis position requires strong software development skills as well as deep expertise in testing both cloud-based software and physical hardware systems. Moreover, candidates will need to be able to guide overall testing strategy, mentor engineers, and collaborate across product, software, hardware, and infrastructure/IT teams to deliver reliable, scalable solutions.\nResponsibilities\nDesign, develop, and maintain testing frameworks for on-vehicle software as well as cloud-based services\nDesign, develop, and maintain hardware test stands for the vehicle subsystems\nMaintain continuous integration (CI) pipeline, with an emphasis on reliability, speed, and cost effectiveness\nPartner with hardware and software teams to develop useful internal software tooling\nContribute to regulatory documentation, including software traceability and test protocols\nProvide technical mentorship and guidance to engineers across the testing and validation team\nWhen appropriate, step into project leadership, ensuring milestones are well-defined and achieved\nWhat Success Looks Like\nAfter 30 Days: You've developed a working understanding of our testing infrastructure and are actively assisting in the bring-up of new test systems.\nAfter 60 Days: You've developed a deep understanding of our testing infrastructure. You are assisting in significant overhauls and expansions to our testing capabilities, as well as actively driving discussions around the testing team's overall strategy and priorities.\nAfter 90 Days: You've delivered major testing features and are proactively ensuring the testing team's roadmap is aligned with the company's future milestones.\nBasic Requirements\n5+ years of software development skills and professional experience with both scripting (Python) and systems (C++/Rust) programming languages\n3+ years of experience building test software and/or internal tooling, with an emphasis on hard tech products in addition to conventional cloud software\nExperience with both hardware-in-the-loop (HITL) testing and software-in-the-loop (SITL) simulations\nWorking proficiency with Linux, DevOps, cloud services, and containerization (Docker, Kubernetes)\nDemonstrated success in leading technical design, setting direction, and mentoring other engineers\nPreferred Qualifications\nExperience in safety-critical domains such as autonomous vehicles, industrial control, or aerospace\nKnowledge of rail control systems (strong plus)\nAbility to work cross-functionally and balance technical depth with product impact\nExperience with polyglot codebases\nParallel Systems is an equal opportunity employer committed to diversity in the workplace. All qualified applicants will receive consideration for employment without regard to any discriminatory factor protected by applicable federal, state or local laws. We work to build an inclusive environment in which all people can come to do their best work.\nParallel Systems is committed to the full inclusion of all qualified individuals. As part of this commitment, Parallel Systems will ensure that persons with disabilities are provided reasonable accommodations. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact your recruiter.","company":"Parallel Systems","rawCompany":"parallel systems","city":"Los Angeles","state":"CA","isRemote":false,"isActive":false,"createdAt":"2026-04-14T10:46:33.716Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1253.00","title":"Software Quality Assurance Analysts and Testers","slug":"software-quality-assurance-analysts-and-testers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Senior Software Engineer – Test/Internal Tooling","description":"Parallel Systems is pioneering autonomous battery-electric rail vehicles designed to transform freight transportation by shifting portions of the $900 billion U.S. trucking industry onto rail. Our innovative technology offers cleaner, safer, and more efficient logistics solutions. Join our dynamic team and help shape a smarter, greener future for global freight.\nSenior Software Engineer – Test/Internal Tooling\nParallel Systems is seeking a Senior Software Engineer to design, develop, and maintain critical test software/infrastructure for an autonomous rail vehicle. In this role, you will work with systems required to ensure that our autonomous rail vehicles satisfy all regulatory, technical, and safety requirements.\nThis position requires strong software development skills as well as deep expertise in testing both cloud-based software and physical hardware systems. Moreover, candidates will need to be able to guide overall testing strategy, mentor engineers, and collaborate across product, software, hardware, and infrastructure/IT teams to deliver reliable, scalable solutions.\nResponsibilities\nDesign, develop, and maintain testing frameworks for on-vehicle software as well as cloud-based services\nDesign, develop, and maintain hardware test stands for the vehicle subsystems\nMaintain continuous integration (CI) pipeline, with an emphasis on reliability, speed, and cost effectiveness\nPartner with hardware and software teams to develop useful internal software tooling\nContribute to regulatory documentation, including software traceability and test protocols\nProvide technical mentorship and guidance to engineers across the testing and validation team\nWhen appropriate, step into project leadership, ensuring milestones are well-defined and achieved\nWhat Success Looks Like\nAfter 30 Days: You've developed a working understanding of our testing infrastructure and are actively assisting in the bring-up of new test systems.\nAfter 60 Days: You've developed a deep understanding of our testing infrastructure. You are assisting in significant overhauls and expansions to our testing capabilities, as well as actively driving discussions around the testing team's overall strategy and priorities.\nAfter 90 Days: You've delivered major testing features and are proactively ensuring the testing team's roadmap is aligned with the company's future milestones.\nBasic Requirements\n5+ years of software development skills and professional experience with both scripting (Python) and systems (C++/Rust) programming languages\n3+ years of experience building test software and/or internal tooling, with an emphasis on hard tech products in addition to conventional cloud software\nExperience with both hardware-in-the-loop (HITL) testing and software-in-the-loop (SITL) simulations\nWorking proficiency with Linux, DevOps, cloud services, and containerization (Docker, Kubernetes)\nDemonstrated success in leading technical design, setting direction, and mentoring other engineers\nPreferred Qualifications\nExperience in safety-critical domains such as autonomous vehicles, industrial control, or aerospace\nKnowledge of rail control systems (strong plus)\nAbility to work cross-functionally and balance technical depth with product impact\nExperience with polyglot codebases\nParallel Systems is an equal opportunity employer committed to diversity in the workplace. All qualified applicants will receive consideration for employment without regard to any discriminatory factor protected by applicable federal, state or local laws. We work to build an inclusive environment in which all people can come to do their best work.\nParallel Systems is committed to the full inclusion of all qualified individuals. As part of this commitment, Parallel Systems will ensure that persons with disabilities are provided reasonable accommodations. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact your recruiter.","datePosted":"2026-04-14T10:46:33.716Z","dateModified":"2026-04-14T10:46:33.716Z","hiringOrganization":{"@type":"Organization","name":"Parallel Systems","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Los Angeles","addressRegion":"CA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"f3eaef9f1b8b83d13a260d6c"},"url":"https://jobsearcher.com/jobs/f3eaef9f1b8b83d13a260d6c"}}