Top Mechanical Design Engineer Jobs in Boston, MA

Lead the mechanical design, analysis, integration, and development of hot structures components for advanced military aircraft engines. Provide technical guidance, resolve complex engineering problems, lead small to medium projects, participate in technical reviews, document designs, and mentor less experienced engineers while balancing design, interface, and resource requirements.

Owns the design and development of hot structures components for advanced military aircraft engines. Performs mechanical design, analysis, interface design, technical documentation, and presentations; collaborates with technical experts and adjacent teams; resolves engineering challenges; and leads small optimization projects while balancing program, design, interface, and resource requirements.

Leads the design, development, commissioning, and continuous improvement of custom manufacturing equipment for high-volume production. Responsibilities include machine architecture, mechanisms, engineering analysis, CAD documentation, testing, root cause analysis, supplier and integrator management, and cross-functional collaboration. The role also mentors junior engineers and ensures equipment meets performance, safety, reliability, cost, and manufacturability objectives.

Designs and develops mechanical components for cardiac electrophysiology catheters, sheaths, and other medical devices. Responsibilities include prototyping, CAD design, manufacturing process development, test fixture creation, troubleshooting assembly issues, design reviews, FMEA participation, supplier coordination, clinical evaluations, and cross-functional integration with electrical and software engineering teams.

Leads mechanical engineering projects for next-generation X-ray imaging systems, covering requirements, concept and detailed design, CAD documentation, prototyping, verification, integration, root-cause analysis, and product transfer. Develops mechanical and electromechanical components, fixtures, and test equipment while collaborating with suppliers, manufacturing, quality, and multidisciplinary engineering teams. Supports design reviews, engineering changes, configuration management, and technical decision-making in a regulated medical technology environment.

Designs, integrates, tests, and supports mechanical and electromechanical components, assemblies, fixtures, tooling, and imaging systems. Performs hands-on prototype assembly, troubleshooting, laboratory system maintenance, verification testing, data analysis, root-cause investigations, and engineering documentation. Uses CAD, engineering drawings, GD&T, bills of materials, work instructions, and configuration records while collaborating on prototype builds and manufacturing readiness.

Design and develop vacuum chambers, frames, subassemblies, vacuum and nitrogen lines, and precision mechanical components. Create Creo CAD models and drawings, perform structural, modal, and O-ring compression analyses, support system builds, and collaborate across engineering and manufacturing teams. Manage ECOs, BOMs, configuration control, design reviews, and product lifecycle support through production release. The role requires a mechanical engineering degree and offers mentorship in vacuum technology, robotics, and semiconductor automation.

Design and develop ruggedized electro-mechanical systems through concept exploration, trade studies, prototyping, testing, and delivery. Collaborate with multi-disciplinary teams, produce technical reports, and ensure designs meet harsh-environment and performance requirements.

Own end-to-end mechanical design of custom mobile manipulators by integrating robot arms with AMR/AGV bases. Create CAD models, mounting structures, cable routing, simulation-ready geometry, and mass, payload, and center-of-gravity analyses. Iterate multiple design concepts, document tolerances and assembly procedures, and support physical builds. Collaborate with simulation and platform evaluation engineers during validation. This is a hands-on mechanical and mechatronic design role focused on hardware integration rather than robotics software or controls.

Design and prototype mechanical systems and components for AI-driven robots. Create 3D models and fabrication drawings, run simulations and tests, iterate through hands-on prototyping, coordinate with vendors, and ensure integration with electrical and software systems. Travel ~25% for site visits.

Develop thermal-hydraulic models for scientific apparatus using ASME B31.3-2022 for installation at a research reactor. Perform steady-state and transient temperature modeling, work independently, and coordinate with EPC contractors and vendors on costs and budgets. The role is remote, part-time, and temporary, with at least four required site visits to State College, Pennsylvania. U.S. citizenship, background screening, drug-free status, and references are required.

Designs mechanical components and electro-mechanical assemblies for radar and multi-sensor products. Responsibilities span concept development, CAD modeling, detailed drawings, prototyping, testing, manufacturing support, documentation, and production transition. The role requires collaboration across mechanical, electrical, firmware, systems, supplier, and manufacturing teams, with occasional field testing and travel. Candidates need mechanical design experience, hands-on hardware skills, GD&T and tolerance stack-up knowledge, and U.S. work authorization without sponsorship.

Designs mechanical and electromechanical test fixtures, tooling, and related hardware for optical networking products. Responsibilities include CAD modeling, engineering drawings, BOMs, configuration-controlled documentation, engineering analysis, tolerance studies, fabrication support, assembly, troubleshooting, validation, and deployment. The role collaborates with engineers, technicians, suppliers, and manufacturing partners to deliver reliable, manufacturable solutions throughout the product development lifecycle.

Lead the architecture, hydraulic design, documentation, integration, manufacturing readiness, controls coordination, and commissioning of liquid-cooling and mechanical distribution systems for modular AI data centers. Own P&IDs, calculations, equipment and valve schedules, interfaces, standards, and performance validation. Collaborate with thermal, electrical, controls, manufacturing, commissioning, supply chain, OEM, and field teams to create scalable, serviceable, repeatable systems for deployment across multiple sites.

Lead battery system architecture, design, qualification, integration, and production for X-BAT, launch/recovery vehicles, and ground equipment. Deploy high-voltage, high-power battery systems, build team and lab, perform verification, debug complex electrical and environmental issues, and provide mentorship and program leadership.

Designs and develops pharmaceutical drug-delivery devices and platforms using CAD, prototyping, testing, tolerance analysis, and Design for Manufacturing principles. Collaborates with internal teams, external consultants, CROs, and manufacturing partners to troubleshoot products, support design controls, build intellectual property, and transfer devices into production. Manages project budgets and timelines while serving as a technical resource for cross-functional teams.

Design and document mechanical assemblies for thermal interface materials in semiconductor packages. Build, instrument, and test prototypes and mockups, analyze thermal and mechanical data, coordinate fabrication, document customer requirements, and support qualification activities and technical engagements. The role also contributes to product improvements and maintains organized design and test records.

Design and validate high-performance mechanical structures and mechanisms for humanoid robots. Create detailed CAD models and drawings, run FEA and topology optimization, prototype and test designs, ensure manufacturability and safety, resolve design issues, and collaborate with cross-disciplinary teams and vendors to transition concepts to production.

Collaborate on mechanical designs for data center systems, validating performance, overseeing construction, and ensuring designs meet quality benchmarks.

Lead mechanical engineering evaluations for data center opportunities, assessing HVAC, cooling, chiller, CRAH/CRAC, liquid cooling, and critical equipment systems. Conduct facility due diligence, validate capacity and design assumptions, evaluate vendors and deployment risks, and provide feasibility and Go/No-Go recommendations. Support mechanical design strategies, equipment selection, commissioning, and construction readiness while partnering with engineering teams, consultants, and vendors to establish scalable standards for hyperscale and AI infrastructure.