Mechanical Engineer- Contractor Acorn Product Development, Inc.Mechanical Engineer- ContractorWaltham, MAOur proven expertise, relationships, and processes help our clients bring innovative, reliable, and cost-effective products to market. Demonstrated success designing and developing products in Robotics, Automation, Networking, Consumer, Medical Devices.
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.
Eng Test Senior Axcelis TechnologiesEng Test SeniorBeverly, Massachusetts$116,331.60–$174,497.40 / yearThis is an opportunity for an experienced engineer to expand their technical leadership, influence cross-functional decisions, and deliver measurable impact across production and new product introduction efforts. This position requires strong technical depth across multiple disciplines, including electronics, mechanical design, automation, instrumentation, and data analysis, as well as the ability to troubleshoot and resolve complex system-level issues.
Scientist/Associate (Ph.D.) Exponent Inc.Scientist/Associate (Ph.D.)Natick, Massachusetts$140,000–$162,000 / yearFull timeCandidates should be highly skilled in analytical and experimental techniques relevant to elastomers, including rheology and viscoelastic characterization, mechanical and durability testing (e.g., fatigue, tear, abrasion, crack growth), microscopy and fractography, and chemical analysis methods such as FTIR, DSC, TGA, and DMA. For over five decades, we've connected the lessons of past failures with tomorrow's solutions to advise clients as they innovate technologically complex products and processes, ensure the safety and health of their users, and address the challenges of sustainability.
Principal Exponent Inc.PrincipalNatick, Massachusetts$250,000–$300,000 / yearFull timeAs a Principal Engineer, you will cultivate relationships with existing clients, identify new business opportunities, lead teams to perform leading-edge analyses, and contribute to the growth of our Thermal Sciences Practice. This position will involve applying advanced economic, financial, and technical expertise to real-world challenges in energy markets, including investment strategy, asset valuation, regulatory analysis, and generation and transmission development.
Mechanical Engineer- Waltham Acorn Product Development, Inc.Mechanical Engineer- WalthamWaltham, MAEach 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.
Senior Mechanical Design Engineer Pickle Robot CompanySenior Mechanical Design EngineerCharlestown, MAYou’ll diagnose issues, drive continuous improvement, and collaborate closely with software, electrical, and manufacturing teams to ensure our robots deliver consistent, high‑quality performance in the field. Must have experience designing machined, sheet metal, and welded parts in (preferably OnShape) and submitting documentation through ECO’s and deviations in Arena or other similar tools.
Group 04-47 | SRP Intern - Power Electronics | Energy Systems | Summer 2026 (Lexington, MA, US) MIT Lincoln LaboratoryGroup 04-47 | SRP Intern - Power Electronics | Energy Systems | Summer 2026 (Lexington, MA, US)Lexington, MAThis includes developing advanced architectures and system designs to improve the resilience of power grids, developing new control techniques for microgrids and distributed energy resources, developing hardware and real-time simulation testbeds, and power improvements to make warfighter hardware more capable. The Energy Systems Group seeks a summer intern to join a multidisciplinary team that researches and develops power electronic circuitry, the controls that operate those devices, and methods to enhance their performance.
Advanced Signal Processing and Estimation MIT Lincoln LaboratoryAdvanced Signal Processing and EstimationLexington, MA$145,200–$170,000 / yearWe are looking for creative people with a desire for continuous learning to work in an inclusive environment consisting of small teams of hardworking engineers with a common goal of solving difficult problems critical for scientific and national defense applications. 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.
Group 04-47 | SRP Intern - Tactical Microgrid Research Developmen | Energy Systems | Summer 2026 ... MIT Lincoln LaboratoryGroup 04-47 | SRP Intern - Tactical Microgrid Research Developmen | Energy Systems | Summer 2026 ...Lexington, MAThis includes developing advanced architectures and system designs to improve the resilience of power grids, developing new control techniques for microgrids and distributed energy resources, and developing hardware and real-time simulation testbeds. The Energy Systems Group seeks a summer intern to join a multidisciplinary team that researches and develops advanced microgrid control systems for land, sea, air, and space applications.
NewSystems Engineering L3Harris TechnologiesSystems EngineeringWilmington, MA$153,000–$284,000 / yearThe ideal candidate for this position will be proficient in all aspects of the systems engineering process, will have direct and significant experience designing and testing complex systems, and will be comfortable coordinating teams of technical personnel. L3Harris in Wilmington, MA specializes in space-based, visible and IR payload systems with integrated electromechanical devices used for micro radian level line of sight pointing and focus control.
NewMechanical Design Engineer Rose InternationalMechanical Design EngineerWaltham, Massachusetts$53–$60 / hourTemporaryThe ideal candidate enjoys working both at a desk and in a lab/workshop environment and takes pride in delivering high-quality demonstration systems that represent the company's products to customers and stakeholders. The successful candidate will partner closely with a Principal Design Engineer to build, maintain, and optimize commercial demo kits used by our Sales and Commercial teams.
System Mechanical & Integration Engineer Analog DevicesSystem Mechanical & Integration EngineerWilmington, MassachusettsADI combines analog, digital, AI, and software technologies into solutions that combat climate change, reliably connect humans and the world, and help drive advancements in automation and robotics, mobility, healthcare, energy and data centers. In this role, you will work alongside experienced power electronics, thermal, mechanical, systems, and reliability engineers to design, integrate, and validate high-density power supply systems for AI and cloud computing infrastructure.
Mechanical Project Engineer J.F. White ContractingMechanical Project EngineerBoston, MA$85,000–$130,000 / yearPart timeWhite Contracting Company's Mechanical Division is seeking a driven and detail-oriented Mechanical Project Engineer to support the delivery of complex HVAC and mechanical construction projects throughout Greater Boston. Bachelor's degree in Construction Management, Mechanical Engineering, Civil Engineering, or a related field — OR — 3+ years of hands-on experience in mechanical or HVAC construction.
Product Development / Mechanical Design Engineer - High Speed Connectors Amphenol HSIOProduct Development / Mechanical Design Engineer - High Speed ConnectorsNashua, New HampshireAmphenol High Speed Products Group is the market leader for high speed, high bandwidth electrical connectors for the Telecom/Datacom market (Mobile Networks, Storage, Servers, Routers, Switches, etc.). Amphenol Corporation is one of the world’s largest designers and manufacturers of electrical, electronic and fiber optic connectors and interconnect systems, antennas, sensors and sensor-based products and coaxial and high-speed specialty cable.
Environmental Test Technician ANDURIL INDUSTRIESEnvironmental Test TechnicianLexington, MA$47.60–$62.50 / hourWorking closely with R&D engineers, you will build test fixtures, set up instrumentation, run chambers and shakers, execute environmental and reliability testing, and help transition cutting-edge prototypes into reliable, manufacturable products. To ensure your safety and help you navigate your job search with confidence, please keep the following critical points in mind: No Financial Requests: Anduril will never solicit payment or demand personal financial details (such as banking information, credit card numbers, or social security numbers) at any stage of our hiring process.
Group 04-47 | SRP Intern - Electric Grid Communications Security | Energy Systems | Summer 2026 (... MIT Lincoln LaboratoryGroup 04-47 | SRP Intern - Electric Grid Communications Security | Energy Systems | Summer 2026 (...Lexington, MAThis includes developing advanced architectures and system designs to improve the resilience of power grids, developing new control techniques for microgrids and distributed energy resources, and developing hardware and real-time simulation testbeds. As an SRP intern, you’ll engage in hands-on research, receive dedicated mentorship, and take part in professional development opportunities including workshops, tech talks, and networking events—all while building connections within a vibrant community of peers.
NewSenior Director, Novel Drug Delivery Technologies Eli Lilly and CompanySenior Director, Novel Drug Delivery TechnologiesBoston, MA$166,500–$264,000 / yearOur current groups include: Africa, Middle East, Central Asia (AMECA), Black Employees at Lilly (BE@Lilly), Chinese Culture Network (CCN), EnAble, Evolve, Lilly Indian Network (LIN), Organization of Latinx at Lilly (OLA), Pride (LGBTQ+ Allies), Veterans Leadership Network (VLN) and Women's Initiative for Leading at Lilly (WILL). Position Overview: The Drug Delivery group at Lilly studies physiological barriers across routes of administration to create novel, patient-centric delivery solutions, serving as a center of excellence in injection physiology, device ideation, novel drug delivery technologies across modalities and routes of administration, nanomedicine and targeted delivery, and connected devices/digital biomarkers.
NewSenior Director, Focused Ultrasound Drug Delivery Eli Lilly and CompanySenior Director, Focused Ultrasound Drug DeliveryBoston, MA$166,500–$264,000 / yearThis role anchors a growing technical capability in ultrasound-mediated delivery - spanning focused ultrasound (FUS) for deep-tissue and organ-specific targets as well as non-focused ultrasound approaches where spatial precision is not required for the target bioeffect - including microbubble/nanobubble-mediated bioeffects such as sonoporation and reversible barrier permeabilization, intended to enhance delivery of biologics and gene therapies across a range of deep and superficial tissue targets and emerging routes of administration. Job Position Overview: The Drug Delivery group at Lilly studies physiological barriers across routes of administration to create novel, patient-centric delivery solutions, serving as a center of excellence in injection physiology, device ideation, novel drug delivery technologies across modalities and routes of administration, nanomedicine and targeted delivery, and connected devices/digital biomarkers.
Systems Administrator-IT-IC3, Group 95 (Top Secret) MIT Lincoln LaboratorySystems Administrator-IT-IC3, Group 95 (Top Secret)Lexington, MA$95,700–$126,700 / yearThis work involves understanding the attributes and vulnerabilities of U.S. space-related systems, including the sensors and networks used to detect, track, and characterize objects in space, the satellites that provide space-based services, and the infrastructure used to control and operate these satellites. The group seeks researchers from the physical sciences, including physics, mathematics, and chemistry, as well as from a wide range of applied disciplines (including electrical engineering, mechanical engineering, chemical engineering, aeronautics, astronautics and computer science).