Mechanical Process Engineer - Purity Gas & Chemical Systems

Mechanical Process Engineer – High Purity Gas & Chemical Systems

On-site in Boise,

Target salary range: $90,000 - $

We are seeking a Mechanical Process Engineer – High Purity Gas & Chemical Systems to support the design and development of high‑purity gas and ultrapure chemical delivery systems for semiconductor manufacturing and advanced industrial applications. This role focuses on process engineering, P&t, process simulation, equipment sizing, Solid Works, AutoCAD, Pipe Flo, and process safety methodologies including HAZOP, PSM, and FMEA while driving new product development and continuous product improvement.

• Design and develop high‑purity gas and ultrapure chemical delivery systems for new products and existing product enhancements.
• Develop engineering specifications, process calculations, and detailed designs to support manufacturing and product development.
• Create, maintain, and optimize Process and Instrumentation Diagrams (P&IDs) for safe, reliable, and maintainable process systems.
• Perform process simulations, equipment sizing, pressure drop calculations, and flow analysis using Pipe Flo or comparable process engineering software.
• Research, evaluate, and specify valves, piping components, instrumentation, and process equipment for new system designs.
• Analyze process flow requirements and engineer practical solutions that meet performance, quality, and safety objectives.
• Lead or participate in Process Safety Management (PSM), Hazard and Operability (HAZOP), and Failure Modes and Effects Analysis (FMEA) reviews.
• Evaluate system components for chemical compatibility and process reliability.
• Ensure engineering designs comply with applicable industry codes, standards, QA/QC requirements, and engineering best practices.
• Support new product development initiatives targeting emerging semiconductor and advanced manufacturing markets.
• Collaborate with cross‑functional engineering teams to improve existing products and develop innovative process solutions.
• Research and evaluate emerging technologies, equipment, and manufacturing processes to improve product performance, quality, throughput, and workplace safety.
• Support proposal development and technical quotations by providing engineering input as required.
• Manage engineering design projects while coordinating activities with engineers, designers, consultants, and contractors.
• Review engineering deliverables and implement corrective actions to maintain quality and schedule objectives.
• Improve product manufacturability and support continuous improvement initiatives across engineering and manufacturing.
• Assist with manufacturing training related to new products, equipment, and production processes.
• Provide engineering support throughout product release, production, and manufacturing implementation.
• Support the design and construction of manufacturing equipment when required.
• Follow project budgets, schedules, and company engineering processes.
• Participate in all required safety initiatives, hazard reporting, PPE compliance, and workplace safety programs.
• Perform other duties as assigned.

• U.S. Citizenship is required by Federal Law
• Bachelor's degree in Mechanical Engineering or Chemical Engineering.
• Experience designing process systems, high‑purity gas systems, chemical delivery systems, or similar industrial process equipment.
• Experience using Pipe Flo or comparable process simulation software for flow, pressure, and equipment sizing calculations.
• Proficiency with Solid Works and AutoCAD.
• Experience developing and maintaining P&IDs.
• Knowledge of process equipment sizing, fluid flow analysis, and mechanical system design.
• Experience performing or participating in HAZOP, PSM, and FMEA process safety reviews.
• Knowledge of chemical compatibility evaluation and process equipment selection.
• Understanding of applicable engineering codes, quality standards, and QA/QC practices.
• Experience supporting product development, engineering design, and manufacturing.
• Ability to support limited travel to customer locations as required.

• Experience supporting semiconductor manufacturing or related high‑tech process industries.
• Experience developing high‑purity gas or ultrapure chemical delivery systems.
• Knowledge of new product development and manufacturing process improvement initiatives.

Moseley Technical Services, Inc. is an AA/EEO/Veterans/Disabled Employer