Mechanical Assembly and Rework Technician - Contract Position

Stealth Mode Startup; Fremont (CA); On-site; USD 3,444,000 - 4,822,000; Full time

Job summary

Stealth Mode Startup is seeking a Mechanical Assembly and Rework Technician for a 3-month contract. The role focuses on connector soldering, adhesive-backed assembly, fixture operation, and rework of large battery busplates.

You will support prototypes and low-volume production with hands-on tooling, documentation, and strict process adherence. The position requires strong mechanical aptitude, detail orientation, and ability to read drawings and work instructions.

Qualifications

• High school diploma or equivalent; associate degree or technical certification preferred.
• Hands-on experience in mechanical assembly or related manufacturing.
• Experience with hand and power tools and basic measuring equipment.
• Soldering experience preferred; ability to learn product-specific techniques.
• Ability to read drawings and follow work instructions.

Responsibilities

• Solder electrical connectors onto large busplates according to instructions.
• Assemble busplates using adhesives, fixtures, fasteners, and hand tools.
• Support prototype builds and low-volume production of large-format assemblies.
• Perform controlled rework using rework tools (Dremels, sanders, files).
• Prepare and clean surfaces to meet cleanliness requirements.
• Inspect assemblies for dimensions and workmanship with basic tools.
• Maintain tools/fixtures and document results and observed defects.
• Keep a clean, safe work area and follow PPE requirements.

Skills

Mechanical aptitude

Attention to detail

Effective communication

Education

High school diploma

Associate degree / technical certification

Tools

Dremels

Power tools

Hand tools

Job description

Mechanical Assembly and Rework Technician - Contract Position

The Mechanical Assembly and Rework Technician will support the assembly, modification, and rework of large battery busplates and related components. Initial work will focus on connector soldering, adhesive-backed assembly, fixture operation, part cleaning, and tab-removal rework. As the role expands, the technician may support additional prototype and low-volume production activities involving large-format mechanical and electromechanical assemblies. This is a hands-on role requiring strong mechanical aptitude, attention to detail, and consistent execution of documented processes.

Responsibilities

• Solder electrical connectors onto large busplates using established techniques and work instructions.
• Assemble busplates and related components using adhesives, compression fixtures, fasteners, brackets, and hand tools.
• Support prototype builds, engineering trials, and low-volume production of large-format mechanical and electromechanical assemblies.
• Perform controlled rework and part modifications using Dremels, sanders, files, deburring tools, and similar equipment.
• Prepare and clean surfaces and completed parts to meet manufacturing cleanliness requirements.
• Inspect assemblies for dimensions, alignment, fit, surface condition, and overall workmanship using basic measuring tools.
• Set up and maintain tools and fixtures, identify assembly issues, and provide feedback to improve tooling and work instructions.
• Organize materials and document completed work, process results, and observed defects.
• Maintain a clean and safe work area and follow all requirements for soldering equipment, adhesives, power tools, and PPE.

Qualifications

• High school diploma or equivalent required; associate degree, trade-school training, or technical certification preferred.
• Hands-on experience in mechanical assembly, manufacturing, fabrication, production rework, equipment assembly, or a similar environment.
• Experience using hand tools, power tools, assembly fixtures, and basic measuring equipment.
• Experience with Dremels, sanders, files, deburring tools, or similar fabrication and rework tools.
• Soldering experience preferred; ability to learn and consistently perform a product-specific soldering technique.
• Familiarity with adhesives, surface preparation, clamping, bonded assemblies, or torque-controlled fastening is preferred.
• Ability to read and follow drawings, work instructions, rework instructions, and visual standards.
• Experience with busbars, busplates, battery components, sheet-metal assemblies, or industrial equipment is a plus.
• Strong mechanical aptitude and ability to perform precise, repeatable work.
• Strong attention to detail, safety, cleanliness, and workmanship.
• Basic documentation and data-entry skills.
• Effective communication and ability to work collaboratively with technicians, engineers, and manufacturing teams.

Physical Requirements

• Ability to sit or stand and perform repetitive assembly tasks for extended periods.
• Ability to lift up to 50 pounds with or without reasonable accommodation.
• Ability to handle and position large components safely.
• Ability to perform tasks requiring dexterity, precision, and hand-eye coordination.
• Ability to safely operate soldering equipment, hand tools, power tools, fixtures, and rotary tools.
• Ability to wear required PPE and work in controlled manufacturing or laboratory environments.
• Onsite, hands-on laboratory and pilot-line operations.
• Day shift: 8:00 AM–4:30 PM.
• Swing shift: 3:00 PM–11:30 PM.

The expected duration for the contract is 3 months to start and this is a non-exempt hourly role.