Senior Mechanical Engineer
LASSO Inc
About The Role We are hiring a Senior Mechanical Engineer to design, develop, test, and validate our next generation of food manufacturing systems. In this role, you will help scale R&D discoveries into novel food processing equipment and play a key part in delivering food‑safe systems for our first product launches while laying the foundation for future hardware scale‑up. You’ll lead portions of hardware design, development, and validation, and create and maintain food safety documentation for equipment. This role reports to the Head of Engineering. What You’ll Do Design, develop, and validate food processing equipment from concept through commercialization Translate R&D learnings into scalable, manufacturable systems Create and maintain food safety documentation aligned with regulatory standards Lead and support hardware builds, testing, and iteration cycles Troubleshoot equipment and process issues in real‑time to keep production running Work cross‑functionally with internal teams, co‑manufacturers, and external partners Contribute to the development of new systems that support future production scale What We’re Looking For 5+ years of experience in mechanical engineering, ideally in food process scaling or systems development Strong CAD experience (Onshape preferred; also SolidWorks, Siemens NX, etc.) Experience designing sanitary food equipment within regulatory guidelines (BOH, DPH, GMP, FDA, NSF) Ability to solve complex, ambiguous problems and operate effectively in unknown territory Hands‑on troubleshooting skills across mechanical systems (motors, seals, components, etc.) Experience leading projects end‑to‑end in fast‑paced environments Strong collaboration skills across technical teams and external partners A startup mindset — adaptable, hands‑on, and excited to take ownership Nice to Have Experience working with novel or first‑of‑its‑kind manufacturing processes Background working with co‑manufacturers or scaling early‑stage hardware Exposure to food‑grade equipment design and validation at commercial scale What Success Looks Like Reliable, scalable equipment supporting early product launches Fast iteration cycles that improve system performance and manufacturability Strong documentation and adherence to food safety standards Effective troubleshooting that minimizes downtime and keeps production moving Seamless collaboration across engineering, operations, and external partners Why Join Us Inclusive and fun work culture High ownership and impact in a fast‑growing startup Equity package Unlimited PTO (that people actually take), Vision, Dental, 401k #J-18808-Ljbffr
$135k - $175k
...rStream is building systems and processes to make the facilities management more efficient and profitable. We're hiring a Senior Mechanical Engineer to own the rSort platform from prototype to production. Hardware is the backbone of this technology. Our autonomous...SeniorFull timeFlexible hours$112k - $155k
...We are building the next generation of 3D printers and looking for a Senior Mechanical Engineer to design, prototype, and build hardware systems that are both high‑performance and reliable. Position Senior Mechanical Engineer Responsibilities Push the capabilities of...SeniorFull timeWork at officeFlexible hours$135k
...About the Role Entensiv is looking for a Senior Building Automation Service Engineer to join our growing team. This is a hands-on technical role for an experienced BAS professional who thrives on solving complex system challenges, building strong client relationships,...SeniorFull timeWork at officeFlexible hours- ...owned MEP firm with a national presence across data centers, healthcare, science and technology, and clean energy, hiring a Senior Mechanical Engineer who can be based out of three New England offices (Boston, Portland, or Hartford) with a hybrid schedule. Projects...Senior
- ...Associate level candidate to join their HVAC department. This is a senior, high-impact role where you'll lead project teams, act as... ...and staff mentorship — all while delivering complex mechanical engineering projects from concept to completion. What the role involves:...Senior
- ...We are seeking a talented and creative Senior Mechanical Engineer to join our growing team focused on advanced optical system development. You will collaborate with a diverse and experienced engineering group to design and deliver cutting‑edge products across consumer...Senior
$100k - $120k
...Mechanical Engineer wanted for a groundbreaking journey to develop grid-scale energy storage technology. Average pay. Demanding hands‑on work... ...if successful. Pay: $100,000.00 - $120,000.00 per year Senior Mechanical Engineer - Product and system design About the Role...SeniorPermanent employmentContract workImmediate start$130k - $170k
...headquarters, requiring five (5) days per week onsite. Only local candidates will be considered. Locus Robotics is seeking a Senior Mechanical Engineer to support the development of our autonomous mobile robots and related accessories. This role sits within the Hardware R&...SeniorLocal areaWorldwide- ...QuEra is seeking a Sr Mechanical Engineer to join our growing Engineering team building next-generation neutral atom quantum computers. This individual will work alongside other engineers and physicists to design, develop, document and test mechanical systems and components...SeniorContract work
- ...prides itself on providing outstanding customer service. Zaiput is currently seeking candidates to apply for a full-time Mechanical Development Engineer position to play an important role in the development of a new product line. The ideal candidate will be committed to...SeniorFull time
$135k - $175k
...CCI Facility Support Services, LLC is currently seeking a Senior Engineer with experience, formal education, and training in Mechanical engineering . The Senior Mechanical Engineer will provide comprehensive, on-site construction oversight to ensure all contractor activities...SeniorContract workFor contractorsLocal area$120k - $180k
...Senior Mechanical Engineer US-MA-Newton Job ID: 2025-3167 # of Openings: 1 Category: MEP LiRo-Hill Overview We have an immediate need for a Senior Mechanical Engineer in Newton, MA. Come join our team! We are looking to build services and capabilities through the...SeniorLocal areaImmediate start- ...through development to deployment, while leveraging novel technologies to deliver first-of-a-kind systems. STR is seeking a Senior Mechanical Engineer to support the design, development, and implementation of electro‑mechanical hardware for applications such as advanced...SeniorLocal areaNight shift
$105k - $126k
...Senior Mechanical Engineer Location US-NY-Syracuse | US-NY-Rochester | US-MA-Boston | US-NY-Albany Job ID 6743 # Positions 2 Category Energy Management WHY CHA? At CHA, we believe in the power of clean water, resilient energy, safer roads, and structures that harmoniously...SeniorWork from home- ...AMETEK SFMS is looking for a highly collaborative problem-solver with a natural curiosity about mechanical and electrical devices to join us as a Senior Mechanical Engineer in our Wilmington, MA facility. This position will specialize in the development of aerospace components...SeniorLocal areaFlexible hours
- ...efficient, sustainable, and cost-effective. Through innovative HVAC engineering, electrical upgrades, building automation systems,... .... About the Position Our client is seeking an experienced Senior Mechanical Engineer to lead the design and engineering of complex HVAC...SeniorFor contractors
$155k - $163k
...our team members and ensure every customer receives a perfect meal, every time. About The Opportunity We are looking for a Senior Mechanical Engineer to be a key technical asset for our hardware team as we build the next generation of automated food equipment. You will...SeniorWork at officeImmediate startShift work$113.6k - $142.2k
...The Opportunity PAE is looking for an experienced and highly capable Senior Lead Mechanical Engineer in our Boston office to provide advanced technical leadership and guide project teams through all phases of design. In this key role, you will oversee mechanical engineering...SeniorWork experience placementWork at office$146k - $194k
...you to join Anduril’s Maritime Division and help us build the future of defense capability. ABOUT THE JOB We are looking for a Mechanical Engineer to aid the technical development of a holistic support system for service, maintenance, deployment, launch, and recovery of...SeniorFull timeWork experience placementRelocation packageFlexible hours$96.11k - $143.75k
...Position Overview The SR, Packaging Engineer position typically reports to a senior leader in the Packaging and Device Technology department. The Senior Packaging Engineer is a technical resource responsible for assisting in the day‑to‑day operations ensuring the timely...SeniorTemporary workFlexible hours- ...This Opportunity WSP is currently initiating a search for a Senior Traction Power Engineer for our Boston, MA Office . Be involved in projects with our Transit and Rail Team and be a part of a growing organization that meets our client's objectives and solves their...SeniorInternshipWork at officeLocal areaImmediate startFlexible hours
$150k - $170k
...Description Job Description We're ALTEN Technology USA, an engineering company helping clients bring groundbreaking ideas to life—... ...feel valued, supported, and inspired to grow. As Senior Mechanical Engineer you will be responsible for; Lead and contribute...SeniorPermanent employmentFor contractors- ...Sanofi is seeking a Senior Principal Scientist I - Functional Biomarkers to lead a team in Cambridge, MA. This role involves developing and implementing complex biomarker assays and ensuring compliance with regulatory standards. The ideal candidate will have a Ph.D. and...Senior
- ...Eacademy Sanofi is seeking a Senior Principal Scientist I in Cambridge, MA, to lead a team developing functional biomarkers and immunophenotyping panels. The role requires a Ph.D. and extensive experience in flow cytometry, assay design, and managing teams. This position...Senior
- ...Job Description Job Description Location: Somerville, MA Senior Mechanical Engineer – Medical Device Overview: Micro-Leads is a fast-paced early-stage company developing an injectable medical device to treat people with chronic pain with greater efficacy....SeniorContract work
$62.5k - $237.5k
...solutions. From military defense and space exploration to biomedical engineering, lives often depend on the solutions we provide. Our... ...necessary for true innovation. Job Description Summary: Draper Mechanical Engineers develop novel solutions to customer‑driven problems...Full timeLocal area- ...the future of haircare for all textures through exceptional engineering and human-centered design. We create category-defining products... ...computer vision, compliant fiber manipulation, and novel mechanisms. Billions of hours are spent braiding hair each year...SeniorWork at officeLocal area
$140k - $200k
A robotics technology company located in Watertown, Massachusetts is seeking talented individuals to enhance robot capabilities through software development in a Python-Linux environment. Responsibilities include optimizing motion planning and improving robotic vision ...Senior$140k - $200k
...exception handling, decorators) Robot Hardware Design and control of end effectors Experience integrating and programming robot arms Mechanical design of mounts and stands. Compensation $140,000 - $200,000 a year All offers include generous equity, fully covered health +...Senior$156k - $175k
...Software Engineer What You'll Accomplish: Design, implement, and optimize motion-planning algorithms to improve the safety... ...this role. We often consider candidates at different levels of seniority, and final compensation will reflect the level at which a candidate...SeniorWork at office3 days per week
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