Top Mechanical Engineering Jobs in Seattle, WA

Mechanical Engineer who brings real-world product development and manufacturing expertise into an AI engineering collaboration platform. Responsibilities include validating product concepts, translating engineering workflows into requirements, supporting customer demos, reviewing CAD and design processes, and partnering with Product, Design, Engineering, Sales, and customers. The role requires expertise in design reviews, change management, supplier collaboration, and taking complex mechanical products from concept through production.

Lead end-to-end development of drones and electro-mechanical systems, including architecture, detailed CAD design, analysis, prototyping, testing, manufacturing handoff, and validation. Design precision mechanisms, electronics packaging, and lightweight components for safety-critical environments. Collaborate with electrical, software, controls, perception, industrial design, and manufacturing teams while communicating technical tradeoffs and influencing cross-functional decisions.

Leads end-to-end mechanical and electro-mechanical development for drones, from concept and CAD through prototyping, testing, validation, and manufacturing handoff. Owns precision mechanisms, electronics packaging, analysis, and design standards while collaborating cross-functionally with electrical, software, controls, perception, industrial design, and manufacturing teams. Mentors engineers, drives technical direction, applies DFM/DFA/DFT and GD&T practices, and develops lightweight, reliable systems for safety-critical environments.

Develops electromechanical hardware for spaceborne radar payloads through requirements, mechanical and thermal design, fabrication, testing, qualification, and spacecraft integration. Performs structural, vibration, thermal, and tolerance analyses; creates 3D CAD and ASME-compliant drawings; evaluates manufacturing technologies; manages schedule and integration requirements; and mentors junior engineers. The role supports ruggedized PCB, avionics, RF, power, and mounting systems for harsh environments including Low Earth Orbit.

Designs and improves robotic hardware using structural and thermal FEA, mechanical CAD, DFx, testing, and root-cause analysis. Translates simulations into design recommendations, investigates failures, creates drawings, and supports manufacturability, cost, assembly, reliability, and safety improvements. Collaborates with clients, suppliers, and manufacturing partners while presenting technical tradeoffs and managing engineering deliverables onsite in Bellevue.

Designs and develops robotic mechanical systems, mechanisms, actuators, transmissions, end-effectors, and integrated electromechanical subsystems. Responsibilities include requirements translation, architecture, component selection, SolidWorks assemblies and drawings, tolerance analysis, prototyping, testing, troubleshooting, and design release. The engineer presents tradeoffs and technical risks while coordinating with electrical, firmware, software, and systems teams. This is a hands-on, on-site role requiring at least eight years of product-development experience.

Designs industrial mechanical and building systems for fueling facilities, rail projects, tank farms, pump houses, and maintenance facilities. Creates process flow diagrams, P&IDs, equipment layouts, and HVAC/plumbing designs. Supports construction administration, plan interpretation, field observations, client coordination, and project scope, budget, schedule, and quality management.

Design, develop, and validate mechanical components and assemblies for automated matcha hardware. Create CAD models and drawings, perform tolerance, FEA, and DFM analyses, build prototypes, conduct testing, manage BOMs and design documentation, and collaborate with electrical, firmware, controls, and contract manufacturing teams.

Senior Mechanical Engineer responsible for developing high-tech industrial and consumer products and precision test equipment. The role involves CAD design, prototyping, plastic component development, material selection, GD&T, high-volume manufacturing, production tool qualification, assembly processes, fastening, bonding, thermal modeling, and CFD. Strong leadership, communication, technical problem-solving, and ability to manage ambiguity are required.

Own end-to-end mechanical design of outdoor radar sensor nodes, including array panels, enclosures, thermal systems, ruggedization, and manufacturing readiness. Lead thermal and structural analysis, qualification testing, tooling, fixtures, vendor management, and cost reduction. Collaborate with RF, antenna, electronics, and systems engineers to define interfaces and deliver designs from concept through production.

Develop advanced mechanical design solutions for consumer technology, medical technology, clean technology, and robotics clients. Collaborate with internal teams, customers, and external partners to solve ambiguous engineering challenges, guide projects, and deliver products from concept through production. The role involves hands-on mechanical engineering, cross-functional teamwork, client support, and working onsite five days per week.

Leads mechanical and electro-mechanical design for rapid prototypes, ergonomic evaluation platforms, and AR/VR product development. Responsibilities include conceptual and detailed design, system assembly, precision mechanisms, motion control, thermodynamics, tooling, fabrication, testing, and technology maturation. Collaborates with hardware, human factors, and R&D teams while managing parallel workstreams, project timelines, compliance needs, and design documentation.

Designs, analyzes, prototypes, tests, and improves mechanical components and industrial poultry-processing equipment. Responsibilities include CAD modeling, FEA, risk analysis, engineering drawings, prototype integration, troubleshooting field issues, supporting manufacturing and customers, managing engineering changes, and developing upgrade kits. The role works closely with sourcing, quality, manufacturing, service, and applications teams and requires approximately 20% travel.

Leads site surveys, feasibility studies, engineering design, project scoping, cost estimates, and technical recommendations for utility modernization, energy efficiency, HVAC, and facility infrastructure projects. Coordinates internal and external engineering resources, supports client proposals and investment decisions, and provides technical oversight through implementation, including design-build coordination, reviews, and incentive integration. Requires regular travel to commercial, industrial, and utility client sites.

Performs piping flexibility and stress analysis, pipe support design, finite element analysis, and static equipment design for oil, gas, and LNG projects. Prepares calculations, drawings, specifications, bid evaluations, and technical documentation. Reviews supplier data, coordinates with multidisciplinary project teams, directs designers and drafters, and provides field verification and mechanical execution support.

Designs and manages mechanical engineering projects from conception through completion. Produces construction documents, plans, calculations, and reports for HVAC, plumbing, refrigeration, fire protection, and fuel systems. Conducts site investigations, coordinates multidisciplinary teams and subconsultants, supports clients, manages budgets and schedules, and assists with RFIs, addendums, and change orders. The role requires coordination with architects, engineers, and construction project managers.

Designs and coordinates electrical building systems, including power distribution, lighting, grounding, controls, and emergency power. Prepares calculations, construction documents, specifications, and code reviews; directs modeling and drafting; supports construction administration; reviews submittals; performs site visits; coordinates with multidisciplinary teams and clients; manages project sprint activities; and mentors technical staff while improving design standards and workflows.

Leads a mechanical engineering team responsible for designing, analyzing, building, and validating X-BAT hardware test stands, fixtures, tooling, and support systems. Owns requirements, detailed design, fabrication, assembly, documentation, and deployment. Performs structural and thermal assessments, applies GD&T and DFM/DFA practices, coordinates with cross-functional teams and vendors, supports troubleshooting, and improves test processes, quality, and execution.

Designs HVAC, piping, and plumbing systems for commercial, institutional, healthcare, laboratory, high-rise, and critical-environment facilities. Responsibilities include load and system calculations, equipment selection, duct and pipe layouts, energy and sustainability design, specifications, controls, CAD coordination, shop drawing review, client and project-team coordination, quality control, value engineering, and field support. The role is hybrid but may require project-site presence and outdoor work depending on project needs.

Designs HVAC, piping, and plumbing systems for commercial, residential, and public facilities. Performs load, energy, acoustical, and system-sizing calculations; selects equipment; develops plans, schematics, details, schedules, and control sequences. Coordinates CAD work, vendors, clients, and project teams; reviews submittals; supports quality control, value engineering, sales assistance, and field personnel. Monitors project budgets and schedules, conducts site inspections, maintains code knowledge, and mentors junior engineers.

Designs and tests industrial machinery for aseptic manufacturing applications. Responsibilities include developing concepts, creating 2D and 3D designs, assessing technical risks, documenting design history, executing testing plans, estimating design effort, supporting customer-site installation and startup, participating in design reviews, improving engineering standards, and leading small to medium-sized projects.

Develop and own mechanical designs for smart lighting products from concept through production. Responsibilities include collaborating with product, electrical, manufacturing, and compliance teams; establishing quality metrics; selecting suppliers; fabricating prototypes; supporting tooling and NPI at factories in East Asia and Mexico; applying UL and ETL safety requirements; conducting validation, testing, FAI, and tool bring-up; and maintaining prototyping equipment.

Owns end-to-end design of new battery packs from concept through production. Responsibilities include optimizing performance, size, weight, manufacturability, and reliability; leading prototyping, testing, qualification, production handoff, requirements definition, drawings, failure analysis, cross-functional architecture execution, design reviews, mentorship, and program leadership.

Designs, develops, integrates, and fields next-generation autonomous aircraft systems. Responsibilities include electro-mechanical avionics packaging, electrical interconnects, thermal management, aircraft integration, structural and modal analysis, environmental and EMI/EMC compliance, design reviews, validation, failure analysis, and flight test readiness.

Designs, operates, maintains, and improves process and facility water systems supporting accelerator infrastructure and ALS operations. Responsibilities include hydraulic and thermal engineering, equipment specification, water treatment, troubleshooting, preventive maintenance, project management, commissioning, documentation, safety compliance, and coordination with engineering, facilities, contractors, and operations teams. The role serves as the technical authority for reliable cooling and ultra-pure water systems in a high-availability scientific facility.