We are seeking a highly capable Senior Mechanical Design Engineer (contract/temporary) to support ongoing product development and improvement efforts. This is a hands-on, execution-focused role centered on improving existing designs, building hardware, and driving real-world performance.
The ideal candidate has 8+ years of experience, strong Onshape proficiency, and thrives in a fast-paced, highly collaborative onsite environment.
ROLES AND RESPONSIBILITIES
Design and improve components and systems based on existing products (“like design”)Develop and release mechanical designs using OnshapeDrive improvements in performance, manufacturability, and reliabilitySupport testing, root cause analysis, and design iterationPrototype and evaluate alternative design approachesContribute to system integration (mechanisms, motion systems, assemblies)Develop and refine assembly and test processesCollaborate cross-functionally with engineering, manufacturing, and field teamsBuild, assemble, and validate prototypes and hardware hands-onRequirements:8+ years of mechanical design experienceStrong proficiency with Onshape (required)Experience across key domains: machined parts, sheet metal, plastics, mechanisms, power transmission, and thermal systemsExperience with testing, debugging, and iterative designStrong understanding of DFM and practical manufacturing considerationsHands-on capability, including building and validating designs independentlyExperience with electromechanical systems and system integrationAbility to adapt and improve existing designsComfortable working onsite in a collaborative environmentNice to have:
Experience with large weldments and structural design (FEA a plus)Experience working around rotating machineryBackground in reliability, failure analysis, or assembly/test process developmentEngagement Details
Type: Contract / TemporaryLocation: Onsite (no remote)Duration: 6 month +Start: ImmediateGrowth Opportunity: This role has the potential to convert to a full-time position based on performance and business needsImpact of the Role
This role is critical to driving near-term design execution, product improvements, and reliability gains. You will directly influence the performance and success of systems deployed in real-world environments.
Additional Information
Location: This role is based in Burlington, MA. We are seeking local candidates, as relocation assistance is not available.
Work Authorization: Applicants must be authorized to work in the U.S. on a full-time basis. We are unable to provide visa sponsorship for this position currently
The Mechanical Technician will support manufacturing by assembling, servicing, and maintaining complex electromechanical equipment. This role involves mechanical assembly, troubleshooting, incoming inspection, and documentation to ensure equipment reliability, safety, and product quality across production and R&D environments.
Key Responsibilities
Assemble mechanical components and electrical systems according to engineering drawings, blueprints, and schematics.Perform precision alignments, calibrations, and diagnostics on production equipmentTroubleshoot and repair mechanical issues involving motors, gear systems, pumps, and other industrial componentsWork closely with engineering teams to implement system upgrades and mechanical improvements Maintain detailed logs, schematics, and repair documentation for traceability and operational excellence Ensure adherence to safety standards and contribute to continuous improvement Support testing and validation of equipment performance during commissioning and ramp-up phases Use hand tools, power tools, and other specialized equipment to perform precise assembly work.Perform quality checks and inspections to ensure products meet performance and safety standards.Troubleshoot and identify issues during the assembly process and recommend corrective measures if needed.Collaborate with team members, engineers, and supervisors to meet production schedules and resolve technical challenges.Maintain cleanliness and organization of the work area to ensure efficiency and safety.Document assembly processes and maintain records of completed work.Requirements:5+ years of experience as a mechanical technician working with industrial equipment Demonstrated experience in assembly, troubleshooting, and maintenance of large-scale or complex electromechanical systems Ability to read and interpret engineering drawings, mechanical schematics, and technical documentation Familiarity with machine tools, welding, rigging, and fabrication techniques Strong attention to detail, with a commitment to quality and system reliability Experience working in startup or R&D environments is a plus Must be able to lift up to 50 pounds, work in confined spaces, stand for an extended period of time, and climb laddersAbility to work independently, take initiative, and adapt to evolving priorities in a fast-paced environment Ability to travel off-site to vendor locations within 40 miles of company headquarters (mileage reimbursed) Read LessViken Detection is seeking an experienced and driven Senior Mechanical Engineer to join our growing, highly collaborative engineering team. This role will play a key technical leadership position in the development of next-generation X-ray and chemical detection systems, spanning precision handheld devices to large-scale vehicle and cargo scanning platforms.
The Senior Mechanical Engineer will lead complex mechanical designs, mentor junior engineers, and partner closely with Engineering, Physics, Program Management, and Operations to drive products from concept through full-rate production and sustaining engineering.
Responsibilities
Lead mechanical system and subsystem design efforts across multiple product platformsCollaborate with Engineering, Physics, and Program Management teams to refine system architecture and requirementsDrive rapid prototyping and proof-of-concept development in a fast-paced R&D environmentOwn mechanical design deliverables including Bills of Materials (BOMs), drawings, tolerance analyses, and test fixturesSupport New Product Introduction (NPI) activities, including early production builds and training manufacturing teamsPerform and guide sustaining engineering, incorporating production, quality, and field feedback into design improvementsApply engineering judgment to designs involving plastics, structural metals, rotating mechanisms, and electromechanical assembliesProvide technical mentorship and design guidance to junior mechanical engineersRequirements:Bachelor’s or Master’s degree in Mechanical Engineering 7+ years of progressive mechanical engineering experience in product development environments Proven experience designing one or more of the following:Handheld or portable devices
Electromechanical or robotic systems
Large-scale industrial or scanning equipment
Solid understanding of manufacturing processes including:Molded plastics
Structural components
Mechanical mechanisms
Experience with SolidWorks or Onshape (preferred)Working knowledge of finite element analysis (FEA) strongly preferred Strong interpersonal and communication skills, with the ability to collaborate cross-functionally Demonstrated ability to take ownership of designs from concept through production Read Less