Sr. Manufacturing Engineer

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Emerging from MIT, Poly6 is an exciting, innovative manufacturing company that specializes in the development and production of advanced additive manufacturing and ceramic components for aerospace turbo machinery. We deliver high-performance products that meet the rigorous demands of quality, durability, and precision required for next‑generation turbine engines while helping reduce greenhouse gas emissions.

• Weekly Pay for Hourly Employees
• Comprehensive Benefit Plans
• Quarterly Bonus Opportunity
• 401(k) with Company Match
• Emphasis on Employee Engagement
• Paid Holidays and Vacation Time
• Tuition Reimbursement
• Opportunities for Advancement

Poly6 is seeking a Senior Manufacturing Engineer to lead the development, industrialization, and scale‑up of front‑end manufacturing processes — including printing, die cleaning, drying, post‑cure, and injection. This role owns the earliest and most sensitive steps of production, establishing the material, dimensional, and process stability that drives downstream yield.

Because front‑end manufacturing is the bridge between R&D and high‑volume production, this position carries a strong emphasis on process development, experimentation, and early‑stage industrialization. The engineer will work closely with R&D, production, quality, tooling, and automation teams to translate new technologies into reliable, scalable operations.

• Own daily engineering support for printing, die cleaning, drying/post‑cure, and injection operations.
• Establish and maintain process windows, control limits, and defect‑prevention standards.
• Lead troubleshooting for upstream issues (print anomalies, fill issues, drying/cure variation, die‑cleaning defects).
• Translate R&D formulations and settings into stable production processes.
• Lead DOEs for print parameters, cure profiles, injection settings, and drying cycles.
• Validate new materials, tooling, and equipment for readiness and repeatability.
• Improve utilization of printers, dryers, post‑cure ovens, and injection presses.
• Develop takt‑based flow, staffing models, and equipment loading plans.
• Reduce early‑stage variation to protect downstream yield.
• Support specification, installation, and qualification of new printers, injection presses, ovens, and cleaning tools.
• Partner with maintenance and controls teams to improve reliability and safety.
• Build data pipelines for print parameters, injection profiles, and cure cycles.
• Apply SPC, Cpk, and statistical analysis to identify drift and drive corrective action.
• Create dashboards and reporting standards for front‑end process health.
• Author process documentation: setup sheets, cure recipes, PFMEAs, and control plans.
• Train operators and technicians on updated processes and best practices.
• Work with R&D on material adjustments, printability, green strength, and cure kinetics.
• Align with backend engineering and quality to ensure upstream decisions support firing and final inspection performance.
• Ensure all front‑end processes meet Poly6 safety and quality standards.
• Conduct risk assessments for new materials and equipment.

• Experience:
  
  5+ years in injection molding, additive manufacturing, drying/cure operations, ceramics, or advanced materials.
• Education:
  
  Bachelor’s degree in Mechanical Engineering, Materials Science, Chemical Engineering, Manufacturing Engineering, or related field (advanced degree preferred).
• Other Required Knowledge, Skills, and Abilities:
  • Demonstrated success industrializing processes from pilot to production scale.
  • Strong experience with troubleshooting, DOE, root cause analysis, SPC/Cpk.
  • Experience with new equipment introductions and tooling development.
  • Strong understanding of printing technologies, injection molding, curing/drying, and green‑body mechanics.
  • Proficiency in data analysis tools (Excel, SQL, Python, or equivalent).
  • Working knowledge of Lean/Six Sigma.
  • Strong communication and cross‑functional alignment skills.
  • Ability to manage multiple development and production priorities.
• Physical Requirements:
  
  Ability to occasionally lift 30 pounds independently.

• Working Environment:
  Manufacturing shop floor/office
• Travel Requirements:
  Up to 20% travel to vendors, suppliers, and partner sites
• Required PPE:
  Check for required PPE in areas you may be working in
• Safety Toed Shoes/Boots:
  Required
• Safety Glasses:
  Required

This is a full‑time position.