Mechanical Engineer Nenni and AssociatesMechanical EngineerBoston, MassachusettsJob Duties and Responsibilities: Collaborate and mentor junior engineers to design the mechanical and plumbing components of energy-efficient buildings. Our client is a very well-established ESCO who is currently seeking a Senior Mechanical Engineer to join their team within the Boston market!
mechanical engineer leominster, ma ESRhealthcare and EXEC STAFF RECRUITERSmechanical engineer leominster, maLeominster, MassachusettsNote: We are looking for candidates with substantial (5+ years) experience engineering large machinery involving motion, and a really nice to have would be experience or projects listed on the resume with thing they have built, even someone who builds / modifies cars in the free time ideally. The primary responsibilities will be to design, develop, and optimize mechanical systems and components using 3D modeling tools, technical documentation, and hands-on problem-solving to ensure manufacturability and project success.
Mechanical Engineer-Photonics QUANTUM COMPUTING, INC.Mechanical Engineer-PhotonicsBedford, MAEvaluate mechanical design trade-offs in the context of adjacent subsystems — including heat dissipation paths, electrical interconnect routing, and optical alignment sensitivity. You will collaborate closely with electrical, optical, and manufacturing engineers to develop practical solutions in a fast-paced environment where requirements evolve and new technical challenges emerge regularly.
NewMechanical Engineer (HVAC) CRBMechanical Engineer (HVAC)Medford, MAThis position is responsible for overseeing the Mechanical discipline scope of work and managing the discipline budget on small to medium projects of intermediate complexity, and coordinating with internal and external architects and engineers, as well as clients, construction managers, subcontractors, vendors and manufacturers. Typical tasks and deliverables include load calculations, utility assessments, energy modeling, design reports, code evaluations, plans, P&IDs, schedules, installation details, equipment and system selection and specification, and coordination with manufacturers and trade partners.
Senior Mechanical Engineer E LogicSenior Mechanical EngineerNatick, MAE-Logic Inc. is seeking an experienced Senior Mechanical Engineer to support the U.S. Army Combat Capabilities Development Command - Soldier Center (DEVCOM-SC), Combat Feeding Division (CFD) Joint Foodservice Engineering Team (JFET). Instrument and conduct in-house testing of commercial appliances for inclusion aboard naval vessels, including developing test plans and formal test reports.
Senior Mechanical Engineer [Boston] AltieriSenior Mechanical Engineer [Boston]Boston, MAWe are a recognized industry leader, designing exciting and high-profile projects for iconic museums, galleries, theatre and performing arts venues, higher education buildings, libraries, parks, and historic projects around the country including: Carnegie Hall (NYC), Domino Park (NYC), Gansevoort Peninsula, Hudson River Park (NYC), The Getty Center (Los Angeles), The Metropolitan Museum of Art (NYC), Museum of Ice Cream (NYC), National Aquarium (Baltimore), The National WWII Museum (New Orleans), Obama Presidential Center (Chicago), Smithsonian National Museum of American History (Washington DC). Who We Are : Altieri has provided mechanical, electrical, plumbing, and fire protection engineering design services to architects and building owners for 65 years.
Mechanical Engineer - PE Barry-WehmillerMechanical Engineer - PEBoston, MA$100,000–$150,000 / yearExperience in the design of advanced technologies, life sciences, or facility/building mechanical systems including HVAC (air handling units, chemical and laminar fume hoods, unit heaters/coolers), water, chilled water/glycol, wastewater, cold/warm rooms, clean rooms, cooling towers/condensers, boiler/steam/condensate, hot water, hydronic, compressed gases, or waste/drain (preferred). By blending people-centric leadership with disciplined operational strategies and purpose-driven growth, Barry-Wehmiller has become a $3 billion organization with nearly 12,000 team members united by a common belief: to use the power of business to build a better world.
Mechanical Engineer - Undersea Reconnaissance & Strike ANDURIL INDUSTRIESMechanical Engineer - Undersea Reconnaissance & StrikeQuincy, MA$129,000–$171,000 / yearThis role involves close collaboration with vehicle design engineering, field operations, and manufacturing/maintenance teams as well as customer representatives to ensure effective support and execution of missions in a variety of rugged environments. Anduril's Maritime Division has assembled a diverse team of experts in software, robotics, artificial intelligence, sensor fusion, and data analysis to create software and hardware solutions that radically evolve the capabilities of our customers.
Mechanical Engineer- Waltham Acorn Product Development, Inc.Mechanical Engineer- WalthamWaltham, MA$110,000–$120,000Each year, key Fortune 100 and 500 companies – as well as numerous hot start-ups -- hire Acorn to participate in the design of their latest product offerings. Proficient with SolidWorks ( Creo a plus ) and preparing engineering documentation per ASME Y14.5 for production release.
NewSenior Mechanical Engineer - Assembly Equipment Commonwealth Fusion SystemsSenior Mechanical Engineer - Assembly EquipmentDevens, MA$110,000–$185,000 / yearYou will work closely and collaborate with the system teams to find the most efficient, creative, cost-effective, and safest way to manipulate, guide, and integrate each part of the larger tokamak system, design and build the tools needed, then finally write work-instruction packets that guide the use of the tool at the time of assembly. Formulate the general strategy for each assembly step utilizing these tools, as well active coordination and guidance of the system teams during parallel design activities for optimum assembly logic, steps, best practices, methods, strategies, and other details.
Senior Field Mechanical Engineer - Assembly Commonwealth Fusion SystemsSenior Field Mechanical Engineer - AssemblyDevens, MAWhat you'll do: Own and be the expert in the assembly sequence of your workstation (initially this role is scoped to the assembly of the Toroidal Field Coil (TF) semicircle sub-assemblies), with the responsibility to determine and enact acceptable solutions and changes to the sequence that both allow successful completion of the work-station but also fit with the entire SPARC assembly sequence. Join the power movement as a Senior Field Mechanical Engineer - Assembly As the Senior Field Mechanical Engineer on the Assembly Team at CFS, you will be responsible for the management, engineering oversight, and problem-solving of the most complex and unique workstations of the SPARC assembly process.
Mechanical Engineer Structural & Thermal Analysis (On-site) HEPCO, Inc.Mechanical Engineer Structural & Thermal Analysis (On-site)Merrimack, NH$67–$72 / hourThe selected candidate will perform structural, vibration, shock, fatigue, and thermal analyses of circuit card assemblies (CCAs), chassis structures, and related mechanical systems. HEPCO Inc. is seeking an experienced Mechanical Engineer with strong structural and thermal analysis expertise to support advanced electronic hardware development.
Mechanical Engineer III Sterling Engineering, Inc.Mechanical Engineer IIIWorcester, MA$136,000–$189,000 / yearOverview: Sterling Engineering is partnering with a growing engineering organization seeking an experienced Mechanical Engineer III or Principal Mechanical Engineer to provide technical leadership and engineering expertise on complex industrial, infrastructure, utility, and energy-related projects. Title: Mechanical Engineer III / Principal Mechanical Engineer Company: Sterling Engineering Location: Portland, ME; Worcester, MA; Plymouth, MA Hire Type: Direct Hire or Contract-to-Hire Compensation: $136,000 - $189,000 based on experience .
Senior Mechanical Engineer PM GroupSenior Mechanical EngineerBurlington, Massachusetts$135,000–$185,000 / yearThe Senior Mechanical Engineer will be mentored by high level Mechanical Engineering team members and will develop design documents such as P&ID’s, utility consumption summaries, plant & process utility distribution systems, pressurization plans, airflow diagrams, ductwork & piping plans, equipment/construction specifications, temperature & humidity control calculations, etc. The ability to successfully handle multiple real-time complex project and operational tasks as well as maintain a strong work ethic and drive to deliver for clients as a collaborative colleague are a must for this role.
Mechanical Engineer Geologics CorporationMechanical EngineerQuincy, MA$55–$63.75 / hourRequires a Bachelor's degree in Mechanical Engineering, or a related Science, Engineering or Mathematics field. Rate offered at time of hire will depend on many factors including education, experience, interview results and skill level .
Senior Precision Mechanical Engineer-Technical Staff (Lexington, MA, US) MIT Lincoln LaboratorySenior Precision Mechanical Engineer-Technical Staff (Lexington, MA, US)Lexington, MA$145,200–$170,000 / yearThe candidate must be knowledgeable in a broad range of challenging problems for precision machine design, mechanisms, and opto-mechanical systems including exact constraint design, bearings, flexures, sensors, actuators, precision error budgeting, structural design, and control systems. The final salary offered to a selected candidate will depend on various factors, including—but not limited to—the scope and responsibilities of the role, the candidate’s experience, skills and education/training, internal equity considerations and applicable legal requirements.
Senior Mechanical Engineer Phantom StaffingSenior Mechanical EngineerActon, MassachusettsSpearhead the creation and integration of electro-mechanical systems for laboratory soil testing, ensuring seamless operation of mechanical and electrical components. Exceptional project management skills, with the ability to prioritize tasks, manage deadlines, and communicate effectively across teams.
2026 ADGE Senior Mechanical Engineer – On-Site RTX2026 ADGE Senior Mechanical Engineer – On-SiteTewksbury, MassachusettsMechanical & Electromechanical Skills: Design, fabrication, and integration of electronic assemblies, shelters, racks, power distribution units; electromechanical troubleshooting; machined parts and CNC manufacturing; welded structure design and fabrication; structural design and/or analysis; Geometric Dimensioning and Tolerancing (GD&T) per ASME Y14.5. Active and existing security clearance required after day 1 At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems.
NewSenior Mechanical Engineer Samsung HME America IncSenior Mechanical EngineerDanvers, MAWe lead nationwide sales, marketing, service, and distribution of Samsung’s imaging technologies, partnering with healthcare providers to strengthen diagnostic capabilities, streamline clinical workflows, and support better patient care. Samsung HME America also serves as the global manufacturing center for Samsung’s mobile Computed Tomography (mCT) business, leading the development of advanced CT systems used by healthcare providers worldwide.
Senior Mechanical Design Engineer RTXSenior Mechanical Design EngineerTewksbury, MassachusettsTeaming/Communication: Collaborate with cross-functional teams including other engineering disciplines, operations, supply chain, quality, and external suppliers to resolve technical challenges and develop effective design solutions. Lead small teams utilizing strong mechanical hardware design experience and knowledge in a fast-paced collaborative environment with ruggedized structures, interconnects, cooling, electronics packaging, tooling and/or array integration.