{"id":1323419,"url":"https://alion.io/job/cellink-technologies-designapplications-engineering-2026","title":"Design/Applications Engineering 2026","company":{"id":3782430,"name":"CelLink","domain":"cellinktechnologies.com","url":"https://alion.io/company/cellinktechnologies","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":75,"open_postings":9,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":53,"computed_at":"2026-10-28T05:59:10Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":null,"employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Carlos, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":120000,"max":150000,"currency":"USD","period":"year","gross":null,"usd_annual":150000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2025-10-06T21:19:32Z","employer_posted_date":"2026-09-15","last_verified_at":"2026-10-28T11:58:40Z","board_verified":true,"closed_at":null,"days_open":386,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":386},"description":"CelLink is pioneering the next generation of flexible circuit technology powering electric vehicles, battery systems, and clean energy applications. Our ultra-light, high-performance interconnects are redefining how energy moves through complex systems, enabling smarter, more efficient, and more sustainable designs.\nWe’re building our pipeline for future opportunities (2026 and beyond) and looking to connect with talented Product Design Engineers who are passionate about battery systems and interconnect design.\nIf you thrive at the intersection of mechanical design, electrical engineering, and materials science, and want to help shape the future of electrification, we’d love to stay in touch.\nAbout the Role\nAs a Product Design Engineer on CelLink’s Battery Team, you’ll design and develop flexible circuit products for advanced energy storage applications, from concept through validation. You’ll collaborate closely with cross-functional teams to optimize battery interconnects, current collectors, and voltage sensing harnesses for performance, reliability, and manufacturability.\nKey Responsibilities\nCreate and manage 3D models and 2D drawings of battery interconnects, current collectors, and sense harnesses.\n\nSelect termination methods for BMS/PCBA connections (e.g., welded, crimped, soldered, ZIF).\n\nDefine and translate system-level requirements into detailed flex circuit product specifications.\n\nBuild and test prototypes; support design validation and launch activities.\n\nConduct and lead design reviews, DFMEAs, and DFM analyses to ensure design robustness.\n\nDevelop and execute DVP&R plans to validate product performance and durability.\n\nExplore new materials, designs, and processes to enhance the thermal, electrical, and mechanical performance of flexible circuits.\n\nMinimum Qualifications\nBachelor’s degree in Materials Science, Mechanical Engineering, Electrical Engineering, Physics, or equivalent.\n\nUnderstanding of Li-Ion battery performance and requirements across pouch, prismatic, and cylindrical cells.\n\nExperience with cell connection manufacturing processes (laser welding, ultrasonic welding, resistance welding, ribbon/wire bonding).\n\nKnowledge of mechanical, electrical, and thermal properties of conductor and insulation materials.\n\nAbility to size busbars and conductors using simulations and 1D joule heating calculations.\n\nExperience designing and validating electrical joints and connection interfaces.\n\nFamiliarity with battery pack architecture (series/parallel design, energy/power balancing, safety considerations).\n\nPreferred: experience with FEA/CFD simulation tools for mechanical and thermal analysis.\n\nLocation\nSan Carlos, CA\nCompensation\n$120,000 - $150,000 (final compensation determined by experience and level).\nWe anticipate multiple openings and will align compensation accordingly.\nJoin Our Talent Network\nCelLink’s mission is to accelerate electrification through innovation in interconnect technology. If you’re excited about shaping the future of battery and energy systems, we want to hear from you, even if the timing isn’t immediate.\nApply now to join our talent network, and we’ll reach out when the next wave of opportunities opens!\nWe believe diversity and inclusion among our teammates are essential to our success. We celebrate diversity and are committed to creating an inclusive environment for all employees while building teams that represent a variety of backgrounds, perspectives, and skills. We are an equal opportunity employer. All employment is decided based on qualifications, merit, and business needs. CelLink participates in the E-Verify program in specific locations as required by law.\nCelLink was founded in 2012 and entered volume production in 2018. CelLink provides electrical systems to the world's leading automotive OEMs & EV manufacturers, data center developers, and stationary power companies. The company has raised approximately $315M in funding through private investment and multiple grants from the US Department of Energy. CelLink’s investors include 3M, Atreides, BMW, BorgWarner, Bosch, D1 Capital, Fidelity, Fontinalis Partners, Ford, Franklin Templeton, Lear, Park West, SK Telecom, Standard Investments, T. 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