Senior Manufacturing Engineer (Fusion Energy)

Location: Devens, Massachusetts, United States. On-site, Monday through Friday, 2:00–10:30 PM. The role may occasionally require nights, weekends, on-call work, travel, and physical work involving lifting up to 50 lbs.

Salary: $134,000–$205,000 per year, plus equity and benefits. Second-shift differential: 10% added to base pay.

Company

hirify.global designs and builds commercially viable fusion power plants and technologies to support the transition to fusion energy.

What you will do

• Design, implement, analyze, and optimize manufacturing processes to improve productivity, efficiency, cost, and product quality.
• Act as the magnet owner with overall accountability for the shift, make real-time decisions within established guardrails, and escalate issues outside defined limits.
• Develop and maintain work instructions, standard operating procedures, process flow diagrams, and other process documentation.
• Collaborate with design and development engineers, production, quality assurance, and supply chain teams to ensure product manufacturability.
• Apply Lean Manufacturing and Six Sigma, conduct time and motion studies, and support continuous improvement across the facility.
• Lead the design and procurement of tools, fixtures, and equipment; troubleshoot equipment and process issues; and evaluate automation and new manufacturing technologies.

Requirements

• Bachelor’s degree in Manufacturing Engineering, Mechanical Engineering, Industrial Engineering, or a related field.
• 7+ years of experience in a manufacturing or production engineering role.
• Strong knowledge of Lean Manufacturing, Six Sigma, and quality systems.
• Proficiency with CAD software such as NX, SolidWorks, or AutoCAD, and manufacturing ERP systems.
• Ability to balance autonomy with disciplined escalation and demonstrate leadership through hands-on engagement.
• Excellent analytical, problem-solving, communication, and teamwork skills.
• Ability to work in a fast-paced, team-oriented environment.
• Ability to lift up to 50 lbs occasionally and perform typing, standing, stooping, and sitting for extended periods.
• Dedication to safety when working around potential hazards including heat, cold, noise, fumes, strong magnets, lead, high voltage, and cryogenics.
• Willingness to occasionally travel or work required nights, weekends, or on-call shifts.

Nice to have

• Knowledge of statistical process control (SPC) and failure modes and effects analysis (FMEA).

Culture & Benefits

• Values include integrity, execution, impact, self-critique, and diverse perspectives.
• 13 company-wide holidays, flexible vacation days, and 10 sick days.
• Generous parental leave and health, dental, and vision insurance.
• 401(k) with employer matching, equity, and competitive compensation.
• Professional growth opportunities and team-building activities.