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 turbomachinery. 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.
At Poly6, you will have the opportunity to work alongside a highly talented team to solve problems in one of the world's most complex engineering sectors: aviation.
WHAT WE OFFER
Weekly Pay for Hourly Employees
Comprehensive Benefit Plans
Quarterly Bonus Opportunity
401k with Company Match
Emphasis on Employee Engagement
Paid Holidays and Vacation Time
Tuition Reimbursement
Opportunities for Advancement
JOB SUMMARY
The Principal Additive Manufacturing Engineer will lead Poly6's initiatives to develop internal capability for producing 3D-printed sand cores for advanced casting processes. This role combines deep expertise in binder jetting processes, strong communication and collaboration skills, and a hands-on approach to technical problem solving. The ideal candidate thrives as a high-impact individual contributor capable of interfacing across engineering, customers, and leadership.
PRIMARY RESPONSIBILITIES
Lead technical establishment of in-house 3D sand printing capability on ExOne and Voxeljet equipment.
Build and maintain should-cost models for 3D-printed sand cores
Work with OEM engineers and product teams to convert build specifications for 3D-printed sand core suppliers.
Lead sand core design modification, reducing part count and assembly labor for downstream foundry processes.
Conduct technical trials to optimize binder jetting parameters for silica-based sands.
Present technical findings to customers and executive audiences with clear, effective communication.
Document processes, technical learnings, and best practices to ensure knowledge capture and transfer.
Serve as the technical subject matter expert for both Poly6 and CPP in binder jetting of sand cores.
QUALIFICATIONS
Education: Bachelor's degree in mechanical engineering, Materials Science, Manufacturing Engineering, or similar field. Master's degree preferred, or equivalent work experience for candidates with a high degree of field specific experience.
Experience: 8+ years of experience in binder jetting additive manufacturing, (ExOne and Voxeljet sand printing applications) or related applicable experience preferred.
Working knowledge of CAD (e.g., SolidWorks), slicing/printing software (e.g., ExOne or Voxeljet platforms), and data tools (e.g., Excel, Python, or Minitab).
Other Required Knowledge, Skills, and Abilities:
Proven understanding of sand-casting processes and casting design principles.
Skilled in cost modeling and economic analysis for manufacturing processes.
Strong interpersonal and presentation skills suitable for engaging technical and non-technical audiences.
Familiarity with phenolic and furan resin systems for sand printing.
Experience in defense or aerospace casting programs.
Understanding of ITAR/EAR regulations and aerospace part qualification standards.
WORKING ENVIRONMENT
Working Environment: Office environment & manufacturing shop floor
Required PPE: Check for required PPE in areas you may be working in
Travel Requirements: 10-15% for supplier interactions, customer meetings, or technology transfer.