Marine Fabrication Technician — Welding, Fiberglass, Machining

Bulwark Dynamics; San Francisco (CA); On-site; USD 55,000 - 96,000; Full time

Benefits offered by this job

Equity: early-stage stock options

Health, dental, and vision coverage

Job summary

Bulwark Dynamics in the Bay Area, CA is seeking a hands-on Fabrication Technician to build and repair structural and composite components for our autonomous vessels. The role is fabrication-heavy, with MIG/TIG welding, fiberglass repair, and manual machining at the core.

You will turn raw stock and damaged parts into field-ready hardware, interpret drawings, support engineers, and keep a safe, efficient shop running as part of the R&D team.

Qualifications

• Proven hands-on experience in MIG/TIG welding and metal fabrication.
• Practical experience with fiberglass repair or composite work.
• Ability to operate manual machining equipment and common fabrication tools.
• Ability to interpret basic technical drawings, sketches, and measurements.
• Background in fabrication, automotive or marine repair, body shops, or similar hands-on trades.
• Ability to regularly lift and handle 40–60 lbs.
• Reliable, resourceful, safety-conscious, and comfortable working in a fast-paced environment.
• This role may involve access to technology and technical data controlled under U.S. export-control laws (ITAR/EAR). Candidates must meet applicable export-control eligibility requirements, which may include qualifying as a "U.S. person".

Responsibilities

• Perform MIG/TIG welding and metal fabrication of structural brackets, mounts, and vessel components.
• Carry out fiberglass repairs and composite layup on hulls and structural assemblies.
• Operate manual machine shop equipment, including lathes, mills, drill presses, band saws, and grinders.
• Interpret technical drawings, sketches, and sample parts to fabricate components to specifications.
• Support engineers with measurements, test fit-ups, prototype modifications, and rapid design iterations.
• Repair damaged structural components following field testing and sea trials.
• Assist with vessel preparation for water testing and maintain shop tools, equipment, and a safe working environment.

Skills

MIG/TIG welding

metal fabrication

fiberglass repair

manual machining

read drawings

Tools

lathes

mills

drill presses

band saws

grinders

CNC machining

CAD basics

Job description

Bulwark Dynamics in the Bay Area, CA is seeking a hands-on Fabrication Technician to build and repair structural and composite components for our autonomous vessels. The role is fabrication-heavy, with MIG/TIG welding, fiberglass repair, and manual machining at the core.

You will turn raw stock and damaged parts into field-ready hardware, interpret drawings, support engineers, and keep a safe, efficient shop running as part of the R&D team.