Senior Mechanical Engineer
$140k - $160kSimplexity Product Development, Inc.
Simplifying the Complex. Simplexity is a product development engineering firm that helps leading technology companies bring advanced robotic and automation systems into reliable, scalable production. We reduce cost, improve quality, and strengthen manufacturing readiness for our clients. Why join Simplexity Product Development? You’ll solve challenging manufacturing and hardware-quality problems involving integrated mechanical, electrical, sensing, actuation, and control systems. Our collaborative teams value meaningful work, technical growth, and sustainable work-life balance.
POSITION DESCRIPTIONS
Simplexity is seeking a hands-on senior mechanical engineer to work embedded with our team at our client’s site in Bellevue, WA on a cutting‑edge robotics product. You should be skilled in finite element analysis (FEA), ideally using ANSYS, and be able to communicate tradeoffs that affect designs based on modeling results. This position will include making design updates to subsystems to optimize them for manufacturing and creating release-quality documentation.JOB DUTIES
Review, analyze, and optimize preliminary actuator designs for manufacturing, lower cost, ease of assembly, and strong reliability. Perform structural finite element analysis or other relevant analyses. Define tests, diagnose failures, perform root‑cause analysis, and iterate rapidly to working hardware. Present design tradeoffs, technical risks, decisions, and project status directly to client stakeholders. Use structured quality and problem‑solving methods to improve manufacturing performance and reduce field and safety risk. Coordinate mechanical interfaces with suppliers and contract manufacturing partners. Manage and update part and assembly drawings and Bills of Materials. Respond to evolving client needs over a long‑term engagement.QUALIFICATIONS
Bachelor’s or master’s degree in Mechanical Engineering or a related engineering discipline. 8+ years of applicable experience, including at least 2 years of finite element analysis (FEA). Proficient knowledge of ANSYS (highly preferred) or FEA software. Proficient knowledge of SolidWorks (highly preferred) or equivalent CAD package. Have an ownership mindset and deliver on project goals by figuring out your task list and holding yourself accountable to meeting a fast‑paced schedule. Positive, client‑focused style and a commitment to ethical conduct. Ability to work full‑time on‑site in Bellevue, WA at Simplexity’s client site.PLUSES TO HAVE
Performing torque‑speed, duty‑cycle, inertia, efficiency, life, force, energy, vibration, or thermal analyses. Experience designing test fixtures, test instruments, or automated mechanical test equipment. Experience using SolidWorks PDM to manage CAD files. Demonstrable knowledge of manufacturing processes and high‑volume production methods – injection molding, casting, sheet metal, machining, etc. Experience developing custom actuator or drivetrain solutions, ideally with external vendors. Strong GD&T (ASME Y14.5), tolerance analysis, and DFM/DFA Hands‑on testing, troubleshooting, and root‑cause analysis experience. Experience having technical discussions with clients or demanding external stakeholders while remaining a hands‑on individual contributor. Strong understanding of actuators, gear trains, and transmissions.COMPENSATION AND BENEFITS
Base salary range: $140K - $160K, depending on years of experience and skill sets Excellent Healthcare plan (Medical, Dental, and Vision) fully paid for by the company for the employee; partial payment for dependents 401(k) plan with company match Long‑term and short-term disability, AD&D and Life Insurance Paid maternity/new parent leave 11 Paid holidays 3 weeks of paid time off (PTO) per year, increasing after 2, 5, and 9 years of service 1099 contractors who have their own registered consulting/contracting business will also be considered: Hourly rate $100- $125/hr, depending on experience No benefits, holidays, or paid time off (PTO) included Simplexity is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. Diverse candidates are encouraged to apply. #J-18808-Ljbffr Simplexity Product Development, Inc.$130k - $190k
Job TitleSenior Mechanical EngineerLocationBethesda, MD 20800 US (Primary)CategoryResearch, Development, and EngineeringJob TypeFull... ...RequiredSecretJob DescriptionPrescient Edge is seeking a Senior Mechanical Engineer to support a federal government client.Benefits &...Senior$103k - $138k
Start designing tomorrow’s future! Buro Happold has an exciting opportunity for a talented Senior Mechanical Engineer to join our hybrid team in Washington, DC! As a Senior Mechanical Engineer you will have the opportunity to lead design for mechanical engineering across...SeniorPermanent employmentContract workSummer workImmediate startFlexible hours$120k - $148k
ARA is seeking a Senior Mechanical Engineer to support the design of equipment, tooling, and equipment interfaces for energetics chemical manufacturing systems and unmanned systems (UxS) programs supporting U.S. Government customers. This role spans a broad range of mechanical...SeniorFull time$140k - $190k
...cutting-edge manufacturing, turning abstract ideas into realities that transform the world for good.Your impactWe’re seeking a Mechanical Engineer to join our team in Arlington, VA. As part of our team, you’ll have the chance to work on projects that bring innovative...SeniorCivilian ContractorFull timeRemote workWorldwide$126.4k - $189.6k
...world’s leading integrated design practice. Our architects, engineers, interior designers, consultants, sustainability specialists... ...design your place with Stantec.Your OpportunityWe are seeking a Senior Mechanical Engineer to help lead exciting and complex projects to join...SeniorFull timeContract workTemporary workPart timeFor contractorsCasual workWork at officeLocal areaFlexible hours- ...them get to space — our world class Space Systems team is empowering some of the boldest and most ambitious space missions.SENIOR MECHANICAL ENGINEER IIAs a Senior Mechanical Engineer at Rocket Lab’s Silver Spring, Maryland location, you will lead development of...SeniorPermanent employmentLocal areaFlexible hours
$128k - $140k
OverviewSeeking an experienced Senior Naval Architectto support The USCG Ship Design Team... ...for major acquisition efforts.Review engineering designs and shipbuilder deliverables for... ...Marine Engineering, Naval Architecture, Mechanical Engineering, or related technical field...SeniorWork at officeRemote work- ...technically complex facility within the advanced energy sector. As the project progresses through engineering and construction, they are looking to add an experienced Mechanical Engineer to take ownership of critical mechanical and process systems. This is a hands-on...Senior
- ...application due to a disability, contact this employer to ask for an accommodation or an alternative application process. Senior Mechanical Engineer Full Time Arlington Virginia, Arlington, VA, US 3 days ago Requisition ID: 1483 Overview The Senior Mechanical Engineer...SeniorFull timeLocal area
- ...(SAR) , alongside advanced defense applications such as ground and airborne target tracking. We are looking for a Senior Mechanical Engineer to take ownership of the full lifecycle development of electromechanical hardware for a spaceborne radar payload ....Senior
$146k - $208.5k
...solutions connecting the space, air, land, sea and cyber domains in the interest of national security. Job Title: Senior Scientist, Mechanical Engineer Job Code: 45278 Job Location: Palm Bay, FL; Carlsbad, CA; Chantilly, VA Job Schedule: 9/80: Employees work 9...SeniorWork at officeLocal areaFlexible hours- ...The Senior Mechanical Engineer is responsible for leading the design, development, analysis, and testing of mechanical systems and components. This role supports the full product lifecycle from concept through production and ensures designs meet technical, quality, and...Senior
- ...Job Description We are hiring for a Senior Mechanical Engineer with 8+ years of HVAC and Plumbing design experience to join our Washington D.C team! We are looking for a licensed Professional Engineer with experience in all aspects of design and documentation...SeniorWork at officeLocal area
$140k - $180k
...for the world's built and natural environments. As a team of engineers, architects, designers, scientists, creators, and a... ...EXP. Are you ready to design your future? Be our next Senior Mechanical Engineer Your work environment at EXP In this role, you...SeniorFull time$145k - $200k
...for weapon systems. You will identify and implement changes to mechanical parts, connectors, fasteners, harnesses, brackets, and... ...side-by-side with technicians, quality, procurement, and design engineering to transition products from prototype/design models to sustained...SeniorImmediate start- ...Position Overview Woolpert is hiring an experienced Senior Mechanical Engineer to join our dynamic Mechanical Engineering team based in South Florida. This position would be aligned with our office in Coral Gables, FL, but can be fully remote! This position...SeniorRemote workFlexible hours
- Wiley|Wilson, a 100% employee-owned architecture and engineering firm, is looking to add a seasoned Senior Mechanical Engineer with expertise in district utilities to our Alexandria, VA office. This role is ideal for a driven professional eager to help grow our established...SeniorWork at officeWork from home
- AST SpaceMobile is seeking a Mechanical Design Engineer to support satellite mechanical subsystem and payload development programs. This role is responsible for structural architecture layout, primary and secondary structure design, analysis, assembly, and test support...Senior
- Are you ready to put your mechanical engineering expertise to work on projects that matter? LRS Federal LLC is seeking a seasoned Mechanical Engineer to join our growing team. If you thrive on tackling complex challenges, delivering innovative solutions, and have a passion...SeniorFlexible hours
$126.4k - $189.6k
...world's leading integrated design practice. Our architects, engineers, interior designers, consultants, sustainability specialists... ...Stantec. Your Opportunity We are seeking a Senior Mechanical Engineer to help lead exciting and complex projects to join...SeniorFull timeContract workTemporary workPart timeFor contractorsCasual workWork at officeLocal areaFlexible hours- Bala Consulting Engineers is seeking a Senior Mechanical Project Engineer for our Arlington, VA office to lead mechanical design through all phases, including construction administration and commissioning. The candidate should have 10+ years of experience, a Bachelor's...SeniorWork at office
$142.88k - $204.12k
...Watch Our Story:' ' We believe building engineering is more than systems and structures, it'... ...and human experience. We bring together mechanical, electrical, structural, and civil... ...around the world. In the role of Senior Mechanical Engineer, we'll count on you...SeniorFull timeContract workTemporary workPart timeWork at office- Bala Consulting Engineers, Inc. in the Arlington, VA area is seeking a talented Senior Mechanical Project Engineer to lead building design projects from concept through commissioning. The role requires technical leadership across all phases, with strong experience in Revit...Senior
$120k - $130k
..., contact center operations, information technology, software engineering, program management, strategic communications, engineering, and... .... Position Overview Pantheon Data has a need for a Senior Naval Architect that is looking to continue their maritime experience...SeniorWork at officeLocal areaRemote work3 days per week- Applied Research Associates, Inc. (ARA) seeks a Senior Mechanical Engineer to design equipment interfaces for energetic material manufacturing and unmanned systems for U.S. Government customers. Expertise in SolidWorks and AutoCAD is essential to produce release-quality...Senior
- Jacobs is seeking an experienced HVAC Designer to join the Building Mechanical team. You will design HVAC systems for heavy industrial clients, perform field investigations, size and select equipment, and produce construction design packages. You will collaborate with...Senior
- A maritime defense firm is seeking a senior-level Naval Architect IV to support naval shipbuilding and defense initiatives in Arlington... ...have 15+ years of naval architecture experience, a degree in engineering, and strong leadership abilities. Competitive salary and...Senior
- Johns Hopkins Applied Physics Laboratory (APL) seeks a Mechanical Engineer to advance spaceflight hardware across missions from concept through launch. You will lead cross‑discipline teams, oversee mechanical and thermal systems, manage interfaces, and ensure schedules...Senior
$119.07k - $195.62k
A leading engineering firm is seeking a Senior Mechanical Engineer to perform pipe stress analysis and design for projects across various locations. The ideal candidate will have a Bachelor’s degree in Mechanical Engineering and at least 10 years of relevant experience,...Senior$100k - $135k
...Job Title Senior Naval Architect Location Bethesda, MD 20800 US (Primary) Category Research, Development, and Engineering Job Type Full-Time Career Level Staff Education Master's Degree Travel Security Clearance Required Secret...SeniorFull time
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Mechanical Engineer. Be the first to apply!
- senior devops engineer remote Washington DC
- senior IT project manager Washington DC
- senior implementation engineer Washington DC
- senior marketer Washington DC
- senior writer Washington DC
- senior partner marketing manager Washington DC
- senior electronic technician Washington DC
- sr product owner Washington DC
- senior information technology manager Washington DC
- senior quality assurance engineer Washington DC




