Mechanical Engineer III

Responsibilities and Duties

• Review customer requirements: BOMs, 2D & 3D drawings, specifications, and acceptance criteria.
• Develop mechanical designs and 3D models (SolidWorks, Inventor, or Solid Edge) for new assemblies and product variants.
• Prepare manufacturing drawings, including pre-braze / pre-weld details, GD&T callouts, and finished-part drawings.
• Author OMS (Operational Method Sheets): manufacturing process flow, BOM, and work instructions.
• Estimate part fabrication and assembly time; contribute to materials and labor costing.
• Build and test prototypes hands-on, working directly with the prototype machinist, NPI technicians, and the production shop.
• Run prototype testing (thermal cycling, thermal uniformity, dimensional, and functional) and document findings.
• Produce First Article Inspection (FAI) reports and own ECR/ECO redlines through the change cycle.
• Track project timeline, cost, and risks; keep the project on budget and on schedule; escalate early when it is not.
• Spend time on the shop floor. Solicit input from machinists, operators, and quality, and carry that feedback into the next design revision.
• Level III & SR Lead full mechanical design for new product families, including stress and thermal analysis.
• Own supplier interfaces for machined and brazed parts; negotiate cost and delivery to meet customer requirements.
• Run formal design reviews and contribute to customer proposals and technical content.
• Mentor Level I and II engineers; review their drawings and FAIs before release.
• Build and maintain reusable design libraries, templates, and analysis methods so the team gets faster over time.

Desired Skills

• Strong 3D modeling — SolidWorks, Autodesk Inventor, or Solid Edge — including assemblies, configurations, and drawings with GD&T.
• Ability to read and interpret assembly drawings, blueprints, and basic electrical schematics.
• Thermal application experience — heater systems, temperature sensing, or thermal management.
• Familiarity with brazing, welding, and ceramics is a strong plus.
• Strong written communication: clear drawings, FAIs, and technical memos.
• Project management discipline: schedule, cost, and risk tracked weekly.
• Hands-on by default. Comfortable in safety glasses on a CNC mill, lathe, or assembly bench.
• Collaborative with machinists, operators, purchasing, and customers.
• Treats shop-floor feedback as a primary input, not an interruption.
• Curious and learns fast.
• Level III, SR Thermal and structural FEA — COMSOL preferred for thermal; ANSYS or Inventor Stress acceptable for mechanical.
• Electrical drafting capabilities — AutoCAD Electrical (ACADE) or equivalent is a plus.
• Working knowledge of SPC, lean manufacturing, Six Sigma, and 8D problem-solving.
• Ability to lead design reviews and mentor junior engineers.
• Physical Demands: While performing the duties of this Job, the employee is regularly required to stand; walk; si; use hands to finger, handle, or feel; reach with hands and arms; climb or balance; stoop, kneel, crouch, or crawl; talk or hear and taste or smell. The employee must occasionally lift and/or move up to 30 pounds.