Battery Technician (Client Opening)

Rehmann•Ann Arbor, MI

3d•Onsite

About The Position

Altora, a Treetown Tech company, builds power and sensing hardware for unmanned systems, including battery packs, power management, and electronics for aircraft. Technicians at Altora transform designs into physical, flight-worthy products, handling everything from one-off engineering prototypes to repeatable production builds. The company is seeking a Battery Technician with 3-7 years of hands-on experience who can work independently from drawings. This role involves both building packs according to established processes and collaborating with engineers on first-article builds for new designs. The ideal candidate is proficient in both production and prototype work.

Requirements

Three or more years of experience building electromechanical or electrical assemblies.
Comfortable reading schematics, wiring diagrams, assembly drawings, and a BOM.
Solid hand soldering skills.
Experience with spot welding, crimping, potting, or heat-shrink and insulation work on battery assemblies.
Familiarity with DMMs, power supplies, electronic loads, and battery cyclers.
Ability to work independently on a build and recognize when to seek assistance.
Careful with records; meticulous documentation is essential.

Nice To Haves

Battery pack experience is strongly preferred, but a strong harness, wire, or precision assembly background with a real interest in batteries will be considered.
IPC J-STD-001 certification is a plus.
Lithium ion or LiPo pack design exposure.
BMS bring-up and configuration.
UN 38.3 or DOT shipping requirements knowledge.
ESD control practices.
Small UAS or defense hardware experience.
Basic 3D printing or fixture fabrication skills.
Familiarity with ITAR-controlled work.

Responsibilities

Pack build and assembly: Sort and match cells, spot weld and solder interconnects, build and dress harnesses, install BMS boards and sensing leads, pot and insulate, and close out mechanical assembly, working to released drawings, BOMs, and revisions.
Prototype and first-article work: Collaborate with the engineering team on new designs, build initial units, and provide feedback on buildability, fixtures, tooling, and assembly sequences.
Test and verification: Conduct capacity, impedance, and cycle checks; set up and operate cyclers and data acquisition systems; and record results clearly.
Documentation: Create work instructions, redline drawings that do not match reality, and maintain serialization and traceability records.
Safety and housekeeping: Ensure safe handling, storage, and disposal practices for lithium cells at the workbench and uphold these standards for others.
Support the rest of the shop: Assist with cable and harness work, box builds, and general electromechanical assembly as needed.