> Markdown version of [/jobs/ext/3835030-principal-subsystem-build-and-test-engineer](https://www.wearedevelopers.com/jobs/ext/3835030-principal-subsystem-build-and-test-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Subsystem Build and Test Engineer - **Company:** Atom Computing - **Location:** United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Quantum Computing, Systems Integration, Visual Systems, Build Process - **Published:** October 19, 2026 - **Apply:** https://startup.jobs/principal-subsystem-build-and-test-engineer-atom-computing-10506874 ## About the Role * BS in Optical, Mechanical, Electrical, or Manufacturing Engineering, Physics, or a related technical field, or equivalent relevant experience. Advanced degree preferred. * 8+ years of experience building, integrating, testing, or developing precision optical, scientific, or similarly complex hardware. * 3+ years of experience mentoring engineers and technicians in an integration, manufacturing, or test environment., * Extensive hands-on experience assembling, aligning, integrating, and testing precision optical systems. * Experience working with electronic/RF, vacuum, mechanical, or electromechanical subsystems. * Experience taking first-of-a-kind hardware through build, test, troubleshooting, and transition into repeatable production. * Practical knowledge of optical assembly, alignment, cleanliness, bonding coordination, and the measurements used to verify precision optical subsystems. * Working knowledge of electronic and RF assembly, chassis and cable checkout, and vacuum and mechanical build requirements. * Strong troubleshooting skills and the ability to distinguish design issues from process, material, equipment, and workmanship problems. * Experience working with released drawings, work instructions, inspection criteria, test procedures, calibrated equipment, and nonconformance processes. * Desire to coach engineers and technicians and distinguish process problems from design issues. * Experience with quantum computing, atomic physics, advanced photonics, aerospace, semiconductor, scientific instrumentation, or similarly complex hardware preferred. * Capable of lifting and moving objects that weigh up to 25 pounds. ## Description * Lead the build, integration, and testing of optical, vacuum/mechanical, RF, electronic, and cable assemblies. * Manage and develop a multidisciplinary team of engineers and technicians. * Partner with Engineering on first-of-a-kind builds and translate designs into practical assembly and test methods. * Work with Manufacturing Engineering and Quality to establish repeatable build processes, work instructions, fixtures, and test procedures. * Provide hands-on technical direction for optical alignment, precision assembly, integration, and troubleshooting. * Diagnose build and test failures and work with Engineering to identify design, process, material, or workmanship issues. * Ensure required materials, documentation, qualified personnel, and calibrated equipment are available before builds begin. * Maintain accurate build, inspection, and test records and release verified subsystems to System Integration & Test (SI&T). * Track build progress, first-pass acceptance, rework, and cycle time and use repeat-build findings to improve processes and fixtures. * Oversee approved subsystem measurements and acceptance tests, including optical characterization, electronic checkout, and applicable mechanical or vacuum verification. * Collaborate with leadership to plan personnel, workspace, fixtures, and shared equipment across parallel build efforts.