Manufacturing Engineer, Battery Assembly
Hadrian
Los Angeles, CA · $150k–$250k a year · Posted July 28, 2026
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November 2026
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Rankings about engineering jobs
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Pay compared with the market
This listing pays about $200,000 a year. Across 402 open manufacturing engineer listings that state pay, the middle half runs $88,000 to $126,000 and the median is $102,500. That is 95% above the median, above the middle half of those listings.
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AI use among industrial engineers is little observed so far. Measured exposure for industrial engineers: 4% (little observed).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
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About the job
HADRIAN - MANUFACTURING THE FUTURE
Hadrian is building autonomous factories to reindustrialize America. By combining AI, advanced software, robotics, and full-stack manufacturing, we help aerospace and defense companies build rockets, satellites, aircraft, ships, and other mission-critical systems up to 10x faster and at significantly lower cost.
Following our $1.37B Series D at a $7.87B valuation, Hadrian is rapidly expanding our manufacturing footprint, launching new capabilities across welding, casting, forging, electronics, additive manufacturing, and more, while scaling our Factory-as-a-Service platform to transform how critical products are built.
Backed by leading investors including JPMorgan Chase, Valor Equity Partners, Andreessen Horowitz, Founders Fund, 137 Ventures, Lux Capital, T. Rowe Price, and Morgan Stanley, we’re building the future of American manufacturing—and looking for exceptional people to help make it happen.
If you’re ready to take on the most challenging and rewarding work of your career while helping create American manufacturing jobs for generations to come, you’re exactly who we’re looking for.
THE ROLE
Hadrian is expanding our battery pack assembly team and is looking for a Manufacturing Engineer to help bring our pilot battery pack assembly line from concept to a working, repeatable, and safe production line. This is a hands-on role. Working alongside the Battery Pack Engineering Lead and a small team of specialists, you'll develop and refine the processes, fixturing, and tooling that turn cells into qualified packs. You'll get deep exposure to pack and module assembly, cell joining, thermal management, test, and safety, with room to grow your ownership as the line scales.
WHAT YOU'LL DO
- Develop, document, and improve assembly processes across the pilot line: cell intake and sorting/matching, module and pack build sequence, busbar and interconnect assembly, thermal interface application, enclosure, and potting/sealing
- Support cell joining process development (laser / ultrasonic / resistance welding), including weld parameter development, qualification builds, and in-process verification
- Design and build fixturing, stations, and tooling for the pilot line, with an eye toward eventual automation on Hadrian's robotics and software platform
- Write and maintain clear work instructions, process control plans, and standard work for assembly operations
- Support electrical test, formation, and characterization processes, and help define and execute pack-level acceptance testing
- Implement cell-level traceability and lot control on the line, partnering with Quality on inspection plans and nonconformance dispositions
- Run root cause and corrective action on process issues, yield losses, and equipment problems; drive improvements to yield, throughput, and cost
- Support battery safety practices on the floor, including safe handling procedures, thermal runaway mitigation measures, and compliance testing activities (e.g., UN 38.3 transport)
- Partner cross-functionally with design (mechanical/electrical/thermal), automation/controls, supply chain, quality/qualification, and program teams to move the line toward production readiness
WHAT WE'RE LOOKING FOR
- Bachelor's degree in Electrical, Mechanical, Chemical, Materials, Manufacturing, or Industrial Engineering, or a related technical field
- 2+ years of manufacturing or process engineering experience, ideally with hands-on exposure to battery pack or module assembly, energy storage, or another electro-mechanical assembly environment
- Working knowledge of at least one cell joining or precision joining process (laser, ultrasonic, or resistance welding, or comparable processes)
- Experience developing fixturing, tooling, or work instructions for assembly operations
- Comfort working on the production floor: building, testing, breaking, and fixing things yourself
- Strong problem-solving fundamentals, including structured root cause analysis and data-driven process improvement
- Ability to operate with limited direction in a fast-moving, ambiguous, build-it-now environment
- Must be a U.S. Person (U.S. citizen or lawful permanent resident) per ITAR; ability to obtain and maintain a U.S. security clearance
WHAT WILL SET YOU APART
- Direct battery pack or module assembly experience, especially in aerospace, defense, UAS, eVTOL, EV, or other safety-critical applications
- Hands-on weld development experience for tabs and busbars, including weld qualification and destructive/non-destructive evaluation
- Familiarity with battery safety standards and testing (UN 38.3, UL/IEC, abuse testing)
- Experience with electrical test, formation, or pack characterization
- Exposure to automation, robotics, or designing processes for high-rate production
- Experience with traceability systems, MES, or lot control in a regulated or quality-driven environment
- Experience in a high-growth or startup manufacturing environment
BENEFITS FOR FULL-TIME EMPLOYEES
- Medical, dental, vision, and life insurance plans for employees 401k
- Relocation support may be provided for certain situations, based on business need.
- Flexible vacation policy
- Equity
ITAR REQUIREMENTS
To conform to U.S. Government export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen or national, lawful permanent resident, protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.
USE OF AI IN HIRING
Hadrian uses AI-assisted tools in our recruiting and hiring processes to help our team work more efficiently. This may include tools that help organize and analyze recruiting data, as well as an AI-powered notetaker that can record and transcribe interviews and help coordinate feedback. These tools support our team and are not used to make hiring decisions. All candidate evaluations and hiring decisions are performed by humans. If an interview will be recorded, you will be notified in advance and may opt out at any time with no impact on your candidacy. Candidate data processed through these tools is subject to the same protections described in our Privacy Policy https://www.hadrian.co/privacy-policy.
CONSIDERATION OF CRIMINAL HISTORY
Hadrian will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of all applicable laws. We do not ask about criminal history on our application, and we do not consider criminal history before making a conditional offer of employment.
HADRIAN IS AN EQUAL OPPORTUNITY EMPLOYER
Hadrian does not unlawfully discriminate on the basis of race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, marital status, mental status, physical disability or any other legally protected status. When necessary, the Company also makes reasonable accommodations for disabled candidates and employees, including for candidates or employees who are disabled by pregnancy, childbirth, or related medical conditions.