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Physical Sciences Inc. · 3 months ago

Mechanical Engineer – Research & Design

Andover, MA

Full-time

Onsite

Senior Level

5+ years exp

Physical Sciences Inc. (PSI) is an employee-owned company located just north of Boston in Andover, MA. They are seeking an experienced Mechanical Engineer to lead the design, analysis, and development of aerospace and defense mechanical systems. The role involves collaborating with cross-functional teams and ensuring compliance with aerospace/defense standards while contributing to innovative technologies in a multidisciplinary environment.

Research

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

Lead the design, analysis, and development of aerospace and defense mechanical systems, including structural components, enclosures, mechanisms, and thermal management solutions

Conduct research into advanced materials, lightweight structures, and manufacturing processes to optimize system performance and reliability

Develop CAD models, detailed engineering drawings, and technical documentation in accordance with ASME and MIL standards

Perform engineering analyses such as structural (FEA), thermal, vibration, shock, fatigue, and fluid dynamics simulations

Prototype, test, and validate mechanical designs under conditions representative of aerospace and defense environments

Collaborate with cross-functional teams including systems engineering, electrical, materials, chemistry, and manufacturing

Ensure designs comply with applicable aerospace/defense standards, including MIL-STD, ASME, and ITAR requirements

Support failure investigations, root cause analyses, and corrective actions

Mentor junior engineers and contribute technical expertise in design reviews

Contribute to business capture and proposal development for research extending from ongoing efforts

Qualification

Mechanical Engineering3D CAD toolsAerospace materialsEngineering analysis toolsPrototyping experienceAerospace design standardsTeam collaborationMentoringTechnical documentation

Required

Bachelor's or Master's degree in Mechanical Engineering (or related discipline)

5–10 years of experience in mechanical design within a research and development environment

Proficiency in 3D CAD tools, expertise with SolidWorks a plus

Strong knowledge of aerospace materials (metals, composites, high-temperature alloys) and manufacturing methods (casting, forging, machining, additive manufacturing)

Hands-on experience with prototyping, environmental testing, and qualification processes

Skilled in analysis tools such as ANSYS, Abaqus, NASTRAN, or MATLAB

Familiarity with aerospace design standards, MIL-STD specifications, and design-for-reliability principles

U.S. Citizenship is required