35 mechanical test engineer jobs found in Seattle, WA

Application close date: Applications will be accepted on an ongoing basis until the requisition is closed. At Blue Origin, we envision millions of people living and working in space for the benefit of Earth. We're working to develop reusable, safe, and low-cost space vehicles and systems within a culture of safety, collaboration, and inclusion. Join our team of problem solvers as we add new chapters to the history of spaceflight! This role is part of the Lunar Permanence business unit, which develops Blue Origin's Blue Moon landers and related products. To further Blue Origin's mission of millions of people living and working in space for the benefit of Earth, we are building sustainable infrastructure for our transport of crew and cargo from Earth to the lunar surface. As a Senior Avionics Systems Engineer within the Lunar Permanence team, you will play a pivotal role in developing the Blue Moon landers and associated infrastructure, essential for transporting crew and cargo to...

Application close date: Applications will be accepted on an ongoing basis until the requisition is closed. At Blue Origin, we envision millions of people living and working in space for the benefit of Earth. We're working to develop reusable, safe, and low-cost space vehicles and systems within a culture of safety, collaboration, and inclusion. Join our team of problem solvers as we add new chapters to the history of spaceflight! This role supports the development and operations of New Glenn, a single-configuration, heavy-lift orbital launch vehicle capable of routinely carrying people and payloads to low-Earth orbit, geostationary transfer orbit, cislunar, and beyond. Its first stage is fully reusable, and the vehicle was designed from the beginning to be human-capable. As a technical design engineer working closely with a team of engineers, you will be supporting the design, analysis, development and testing of primary and secondary structures for the New Glenn second stage....

Application close date: Applications will be accepted on an ongoing basis until the requisition is closed. At Blue Origin, we envision millions of people living and working in space for the benefit of Earth. We're working to develop reusable, safe, and low-cost space vehicles and systems within a culture of safety, collaboration, and inclusion. Join our team of problem solvers as we add new chapters to the history of spaceflight! This role is part of the Lunar Permanence business unit, which develops Blue Origin's Blue Moon landers and related products. To further Blue Origin's mission of millions of people living and working in space for the benefit of Earth, we are building sustainable infrastructure for our transport of crew and cargo from Earth to the lunar surface. This individual will use their technical expertise, leadership skills, and commitment to quality to join our team and positively impact safe human spaceflight. Passion for our mission and vision is required. You...

Role: Mechanical Engineer - Advanced RF Power Systems Location: Seattle, WA Shift: Day Salary: $70,000 - $115,000/yr DOE/GEO** Eagle Harbor Technologies (EHT) is pioneering novel RF generator power systems, delivering enhanced capabilities to the semiconductor industry. We're looking for ambitious, intelligent, and visionary individuals who thrive in competitive environments, and want to help us achieve our bold, transformative goals. We are seeking a highly motivated and technically skilled Mechanical Engineer to play a key role in the design and development of advanced RF power generators for semiconductor manufacturing applications. In this role, you will contribute to the creation of high-performance electrical and mechanical components and assemblies, leveraging your experience with Siemens NX and SolidWorks to produce robust, manufacturable designs. You will collaborate closely with cross-functional teams to ensure seamless integration of mechanical systems into complex...

See how design solutions come to life! Join Harris Group's 2026 Summer Internship and learn about the dynamic world of consulting engineering. Harris Group is seeking a Structural Engineer Intern to join our Seattle team. As an intern with Harris Group, students will gain exposure to industrial facility projects across a variety of industries such as Aerospace Facilities, Ports & Terminals, Renewable Energy, Oil & Gas, and Life Sciences. Harris Group interns have a unique educational opportunity to gain exposure to multiple engineering disciplines, such as Mechanical, Electrical, Automation & Controls, Civil, Structural, Process, and Architectural. Interns will have the opportunity to learn from and collaborate with diverse multidisciplined teams of Project Managers, Engineers, Designers, and Drafters on a variety of industrial engineering projects. Bring your innovation and curiosity to this exciting internship opportunity! Responsibilities Provide support to the...

Interlune is a space resources company based in Seattle, WA. We will provide resources from space to power a clean and sustainable economy on Earth and in space. We are looking for a Doer who wants to join our early-stage team and accelerate humanity's progress toward an off-world future. Our engineering team combines expert knowledge of geological sciences, mechanical engineering, automation, systems engineering, modeling and simulation, and advanced fabrication to build the infrastructure that will create an in-space economy. To join our small team, you must be agile, willing to learn, and able to take on multiple roles as needed. This role will report to the Vice President of Engineering and bring significant expertise in space robotics, particularly for planetary surface operations. Applicants from all industries are welcome, with particular emphasis in complex, multi-disciplinary system development. Responsibilities: Lead the design of high-reliability mechanisms,...

Salary : $110,956.32 - $129,372.48 Annually Location : Seattle, WA Job Type: Classified Civil Service, Regular, Full-Time Job Number: 2026-00313 Department: Finance and Administrative Services Opening Date: 03/03/2026 Closing Date: 3/31/2026 4:00 PM Pacific Language Premium: Yes Position Description The City of Seattle is seeking a motivated Senior Automotive Engineer to lead complex projects and support the planning, design, and procurement of the City's fleet. The Fleet Management Division oversees a fleet of over 4,000 pieces of equipment used by multiple City departments to deliver critical public services. Reporting to the Design and Procurement Manager, this role is responsible for advanced planning, vehicle and equipment design, procurement, and in-depth research and analysis to inform key fleet decisions. This position offers a unique opportunity to advance the City's commitment to environmentally responsible and cost-effective fleet solutions. ABOUT...

Senior Materials Engineer - Data Center Liquid Cooling & Materials On-site in Seattle, WA, Austin, TX, or Herndon, VA 1-year contract (potential for extension) Team Overview The Data Center Engineering team for our Seattle-based technology client is looking for a Materials Engineer to join a team that is focused on advancing materials, processes, and standards that enable reliable, cost-effective production of high-performance liquid-cooled data center systems.You'llpartner closely with mechanical, chemical, electrical, and field engineering teams, as well as external suppliers and labs, to improve cooling performance, reliability, and total cost of ownership across global deployments. Key Responsibilities Coolant Ownership & Standards • Serve as the technical owner for liquid coolants-defining andmaintainingspecifications for base fluids, additives, andwettedmaterials, including contaminant limits and compatibility criteria. • Build and drive a...

Who We Are Tasso is a fast-growing Seattle-based startup focused on delivering at-home diagnostic testing to those who need it most. We are growing our footprint with leading health systems, clinical research organizations, academic medical centers, and more who are looking to deliver clinical-grade, convenient diagnostic tests to their patients. Tasso was originally founded to find a better way to collect blood instead of a painful fingerstick or time-consuming venous draw. Since then, our products have been used in pharmaceutical clinical trials, by Olympians as part of a new virtual anti-doping program, and broadly by hospital systems across the US. We are looking for a Senior Development Engineer who leads with interest, drives innovation from concept to commercial product, and raises the bar for the engineering team around them. This is a design-first role for someone who thrives in early-stage ambiguity and takes personal ownership for turning bold ideas into manufacturable...

ABOUT AMPHENOL-CIT Amphenol Cable and Interconnect Technology (ACIT), a division of Amphenol Corporation, is a global leader in designing and manufacturing high-performance interconnect solutions that power the world's most advanced technology. Our broad product portfolio includes high-speed connectors, sockets, power connectors, and cable assemblies that support next-generation data centers, enterprise servers, storage systems, networking equipment, and high-speed computing environments. With a strong global presence in R&D, manufacturing, and sales, ACIT is committed to innovation, quality, and customer success. WORK LOCATION: This role is hybrid for candidates residing in the Seattle area and is based out of our Kent, WA office. SUMMARY We are seeking an experienced Connector Development Engineer to join our team and contribute to the design and development of next-generation interconnect products. This role will focus on creating advanced connector and cable...

Company Overview Zeno Power is the leading developer of nuclear batteries - compact power systems that provide reliable, clean energy in frontier environments. By harnessing the heat from radioisotopes, Zeno's batteries power critical missions on Earth, in space, and at sea. To bring this technology to market by 2027, Zeno is seeking out purpose-driven and innovative professionals who are comfortable working in a startup environment. Team members will have a direct impact in enabling commercial and national security missions from the depths of our oceans, to the surface of the moon, and in austere environments here on Earth. Zeno is proud to be an Equal Opportunity Employer and is committed to attracting, retaining, and developing a highly qualified, diverse, and dedicated work force. We do not discriminate in hiring on the basis of sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected Veteran status, or...

Company Overview Zeno Power is the leading developer of nuclear batteries - compact power systems that provide reliable, clean energy in frontier environments. By harnessing the heat from radioisotopes, Zeno's batteries power critical missions on Earth, in space, and at sea. To bring this technology to market by 2027, Zeno is seeking out purpose-driven and innovative professionals who are comfortable working in a startup environment. Team members will have a direct impact in enabling commercial and national security missions from the depths of our oceans, to the surface of the moon, and in austere environments here on Earth. Zeno is proud to be an Equal Opportunity Employer and is committed to attracting, retaining, and developing a highly qualified, diverse, and dedicated work force. We do not discriminate in hiring on the basis of sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected Veteran status, or...

Requisition ID: 96964 Job Category: Infrastructure; Consulting; Engineering; Project Engineering; Project Management Location: Seattle, WA, United States Join a company that is passionately committed to the pursuit of a better world through positive change. With more than 65 years of business and technical expertise in mining, energy, and infrastructure, our 10,000 colleagues in 150 countries tirelessly work toward bettering the industries in which we operate. With practical solutions that are safe, innovative and sustainable, we think globally while acting locally. Are you looking for an opportunity to join a diverse group of professionals who are committed to remaining exceptional? We look forward to hearing from you. Our expertise in infrastructure includes aviation, highways and bridges, planning and advisory services, ports, rail and transit, tunnels, and water. Want to be part of the creation and construction of our cities? Then the infrastructure team is for you!...

Application close date: Applications will be accepted on an ongoing basis until the requisition is closed. At Blue Origin, we envision millions of people living and working in space for the benefit of Earth. We're working to develop reusable, safe, and low-cost space vehicles and systems within a culture of safety, collaboration, and inclusion. Join our team of problem solvers as we add new chapters to the history of spaceflight! This role supports the development and operations of New Glenn, a single-configuration, heavy-lift orbital launch vehicle capable of routinely carrying people and payloads to low-Earth orbit, geostationary transfer orbit, cislunar, and beyond. Its first stage is fully reusable, and the vehicle was designed from the beginning to be human-capable. In this role you will be responsible for leading the design, development, manufacturing and testing of fluid systems for rockets! You will engage in all levels of the design cycle including conceptual design,...

Description Position Description As a Civil Engineer you will integrate the process of document production with a more detailed understanding of design and systems components. This position will be exposed to Civil land development and water/wastewater design along with calculations, specifications, and an expanded understating of codes with a continuum advanced practice of three-dimensional AutoCAD and Civil 3D and production of site design. A Civil Engineer of this level will have the ability to take small to medium sized projects from conception to final design with little input from a senior engineer. Position Salary Range* The expected salary range for this position is $ 85,000 to $ 105,000 annually. Required Qualifications** 4 to 10 years of project experience working on projects within the US ABET (Accreditation Board for Engineering and Technology) accredited degree in Civil Engineering A Professional Engineering License in the State of job posting or...

Salary: $49.29 - $62.48 Hourly Location : Seattle, WA Job Type: Career Service (Exec) Job Number: 2026JA26756 Department: DLS - Dept. of Local Services Division: Road Services Opening Date: 03/20/2026 Closing Date: 4/5/2026 11:59 PM Pacific FLSA: Non-Exempt Bargaining Unit: C1 : PROTEC17-DES, DLS, DNRP Full- or Part-Time: Full Time Hours/Week: 40 hours/week Summary King County Road Services Division is seeking two Drainage Design Engineers (Engineer II) to join our dynamic and supportive Drainage Design Unit. One position will focus on fish passage project design , and the other will focus on roadway drainage system design . These positions provide an opportunity to contribute to projects that improve transportation infrastructure while protecting and restoring the natural environment in unincorporated King County. The successful candidates will work collaboratively with a multidisciplinary team of engineers, environmental scientists, geotechnical...

Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets. We are more than 36,000 people, in over 70 countries, dedicated to improving quality of life. Everyone has an important role to play. With the power of many curious minds, together we can solve the world's most complex challenges and deliver more impact together. Role description: Arcadis is seeking a Senior MEP Engineer to join our Design & Engineering team within the North America Places group. We are looking to grow our team of skilled multi-discipline engineers and engineering consultants throughout North America. The role sits within our Places Global Business Area (GBA). We work with our clients around the world to create, support, and enhance smart, safe, and sustainable places where people live, work, learn and thrive. Places impact on the quality of people's lives through new or redeveloped Data Center, Transit Facility,...

What Your Day Will Look Like: As a Project Manager, you'll lead the planning, design, and delivery of water and wastewater infrastructure projects from initiation through completion. You'll manage multidisciplinary teams, maintain strong client relationships, and ensure that all project objectives, technical, financial, and operational, are met with precision and professionalism. This role combines engineering expertise, leadership, and strategic coordination to drive successful project outcomes. What You'll Do: Manage all phases of water and wastewater projects, including scope, schedule, budget, staffing, and client communication. Lead multidisciplinary teams in preparing design plans, studies, and reports that meet quality and regulatory standards. Serve as the primary client contact, ensuring clear communication, satisfaction, and long-term relationship development. Oversee design reviews, quality control, and risk management to maintain consistency and technical...

What Your Day Will Look Like: As an Engineering Designer, you'll assist in the preparation of design plans and technical drawings for water and wastewater infrastructure projects. Working under close supervision, you'll apply foundational engineering knowledge and CAD drafting skills to support the development of pipelines, pumping systems, and treatment facilities while gaining exposure to design standards and project coordination. What You'll Do: Prepare and edit design drawings, layouts, and plan sheets using CAD software under the direction of senior staff. Assist with basic design calculations, quantity estimates, and project documentation for water and wastewater systems. Support data collection and field verification to confirm existing infrastructure conditions. Collaborate with engineers and designers to ensure design accuracy, completeness, and compliance with applicable standards. What You'll Need: Bachelor of Science in Civil, Environmental, Chemical,...

About Delta E Consulting: Established in 2023 in Seattle, WA, Delta E is an MEP engineering and design consulting firm built on a clear vision to form collaborative partnerships with building owners and design and construction teams that go beyond traditional consulting boundaries. Our work is grounded in technical expertise, sustainability, and thoughtful innovation, with an unwavering commitment to client success. You will be joining a team of seasoned industry professionals and contributing to a business with an established foundation and a strong trajectory. This role is well suited for design professionals who enjoy project and task ownership and enjoy problem-solving beyond a narrow job description. With seven separate services in-house (MEP engineering, Lighting Design, Sustainability and Energy Consulting, and Commissioning), integrative design practices is required at Delta E. You can expect to bring a proactive, curious mindset to your work, as well as have...