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Job Description

Overview

Commonwealth Fusion Systems (CFS) is dedicated to delivering clean fusion energy and is building commercial fusion power plants. This full-time Welder position involves night and weekend shifts with differential pay, focusing on fabricating and welding metal components for fusion energy systems.

Responsibilities

  • Weld and inspect large metallic structures and tooling within specified timelines and budgets.
  • Set up welding processes as per specifications, including determining the correct equipment and methods.
  • Read and analyze drawings and take detailed measurements to plan the project layout.
  • Cut and join material.
  • Perform hand welding or semi-automated welding, utilizing advanced forms of welding when needed.
  • Weld components in vertical, flat, and overhead positions.
  • Provide manufacturability feedback to design engineers for weld geometries and material selection.
  • Perform welding equipment qualification trials.
  • Troubleshoot and resolve manufacturing discrepancies with a focus on continuous improvement.
  • Follow safety procedures at all times.

Requirements

  • Documented Training or Certification in Blueprint Reading and Fabrication, Gas Metal Arc Welding (GMAW), Gas Tungsten Arc Welding (GTAW), Advanced Shielded Metal Arc Welding (SMAW).
  • 5+ years' experience as a welder on large structural systems and tooling.
  • Experience with large metallic structures and manufacturing processes related to welding.
  • Experience in producing welds to pass industry standard requirements.
  • Experience welding stainless steel.
  • Experience using GTAW process to weld copper.
  • Bonus points for experience in welding for pressure vessel, aerospace, and/or nuclear applications.
  • Experience with GTAW, GMAW, SMAW, Electron Beam and Laser Welding.
  • Experience operating mechanized or automated welding equipment.
  • Ability to read and interpret technical drawings and documentation.
  • Excellent attention to detail.
  • Knowledge of various forms of welding equipment and procedures.
  • Capacity to work unsupervised.
  • Detailed understanding of mathematical and numerical data and calculations.
  • Project and time management skills.

Benefits

  • 401k
  • Health Insurance
  • Dental
  • Vision
  • PTO

Additional Information

  • This position is based in Ayer, MA with some flexibility for work from home.
  • Willingness to travel occasionally or do required nights/weekends/on-call.

Benefits

401k
Health Insurance
Dental
Vision
PTO
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How this job compares in Ayer, MA

Pay in context

At roughly $36/hr, this posting sits about 27% above the $28/hr median for welding jobs across Massachusetts — toward the top of a $25–$35/hr middle band drawn from 19 postings with published pay. Put another way, it pays more than about 79% of the comparable postings we have wage data for. Pay that far above local median usually comes attached to something: a harder cert requirement, travel, night shift, or overtime that isn't really optional. Worth establishing which before you accept.

The local market in Ayer, MA

This is the only active welding job we're currently tracking in Ayer, MA, which makes it worth moving on quickly — there is no local competing offer to weigh it against. Across Massachusetts as a whole we're tracking 35 other active welding openings from 27 employers. Browse welding jobs across Massachusetts.

The most active employers in Massachusetts at the moment, by number of open welding reqs, are Welding Shop in Boston, MA (6), Jobot (2), and Waste Connections (2). Volume like that usually means either a genuine expansion or a staffing agency working several client sites — worth knowing which before you apply.

What you'll be running

This posting calls for MIG, TIG, and Stick work. MIG (GMAW) feeds a continuous wire electrode through a shielding-gas nozzle. It lays down metal fast and is forgiving on clean material, which is why it dominates production and light fabrication work. TIG (GTAW) uses a non-consumable tungsten electrode with filler added by hand, giving the operator the most control of any process. It is slow, demanding, and the standard for stainless, aluminum, and anything where the bead has to look as good as it holds.

Similar openings near Ayer, MA

Pay figures are medians computed from live postings in the Welding Pros index, not from survey data, and they move as employers post. Welder -Nights & Weekend Shifts + Differential Pay figures were last recalculated when this page was built.