37 mechanical test engineer jobs found in Seattle

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. We are looking for a technical expert and proven leader with experience in flight vehicle fluid systems to lead the design, development, and testing of reaction control systems and heat exchangers for a launch...

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! We are collaborators, doers, and problem-solvers who are relentlessly committed to a culture of safety. This position will directly impact the history of space exploration and will require your commitment and detailed attention towards safe and repeatable space flight. Join us in lowering the cost of access to space and enabling Blue Origin's vision of millions of people living and working in space to benefit Earth. Multiple positions available across our Business Units. You will be matched with an appropriate engineering team based on your skillset...

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...

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...

Hubble Network was founded with the intention of delivering on the promise of what Internet-of-Things (IoT) was supposed to be. We're building a global Bluetooth® network dedicated to machine-to-machine connectivity. We differentiate ourselves as the first modem-less and gateway-less, direct-to-satellite network from off-the-shelf Bluetooth® Low Energy chips. Hubble is ideal for applications in logistics, AgTech, and maritime where economies of scale for volume consumer and enterprise asset tracking is a priority. Our goal is to be the first billion-endpoint-connected network in the world. Hubble is an early-stage, venture-backed startup supported by some of the best investors in the world. In their previous lives, the founding team has been successful in raising $100s of millions in venture funding, developing the Amazon Sidewalk network, launching billions of dollars of space assets, and leading their teams to successful exits, both through acquisition and IPO. We are now looking...

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: 96959 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,...

Company Description KPFF, a multi-office, multi-discipline engineering firm, is committed to Excellence, Trust, Relationships, Stability, and Passion. For over 60 years KPFF has been providing creative solutions and excellent client service for a diverse range of projects and industries. Our 1,400 professionals in over 30 offices nationwide thrive in a decentralized structure, offering abundant flexibility and numerous opportunities for professional growth. At KPFF, join a legacy of excellence where every team member has the opportunity to contribute to innovative solutions and meaningful projects. To learn more about us and the projects we work on, visit our website at www.kpff.com. Job Description KPFF's Washington Division Transportation Group is looking for an experienced Transportation Civil Engineering Prime Project Manager to lead impactful projects and drive our team forward. This senior role includes the leadership and management of transportation projects across...

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. 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...

Company Description KPFF, a multi-office, multi-discipline engineering firm, is committed to Excellence, Trust, Relationships, Stability, and Passion. With over 60 years of experience, we provide creative solutions for diverse projects, scales, and industries. Our 1,300 professionals in 27 offices nationwide thrive in a decentralized structure, offering abundant flexibility and numerous opportunities for professional growth. At KPFF, join a legacy of excellence where every team member has the opportunity to contribute to innovative solutions and impactful projects. Job Description About the Role: The Special Projects Division of KPFF is growing and looking for an ambitious and initiative-driven Civil Transportation Engineer to strengthen our dynamic team in Seattle or Tacoma, WA . You will be at the heart of downtown, working on a diverse range of heavy civil and industrial infrastructure projects. As a key member, you'll not only refine your existing expertise in...

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...

Salary : $153,439.31 - $194,493.31 Annually Location : Seattle, WA Job Type: Term-Ltd Job Number: 2026AA26519 Department: MTD - Metro Transit Division: Capital Opening Date: 03/03/2026 Closing Date: 3/17/2026 11:59 PM Pacific FLSA: Exempt Bargaining Unit: F7 : L117-Transit Design&Const Sups Full- or Part-Time: Full Time Hours/Week: 40 hours/week Summary King County Metro Transit is hiring a Structural Engineering Supervisor (SDA) to lead a talented team of 5-6 structural engineering professionals responsible for delivering a wide range of trolley, structural, and architectural projects. This role oversees both major and small-scale transit capital projects, guiding the development of engineering designs, specifications, and technical reports. The supervisor also supports project managers in establishing project budgets and schedules and conducts quality control reviews of consultant prepared designs. We are looking for an innovative, collaborative...

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...