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24 senior mechanical design engineer jobs found in Seattle

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Seattle Onsite senior mechanical design engineer
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SP
Apr 08, 2026
Full time
Senior Mechanical Design Engineer
Simplexity Product Development Seattle, WA, USA
Simplifying the Complex. Simplexity is a product development engineering firm, hired by leading technology companies to design their next generation products. In an industry of overly-complex design and production, we strive for simplicity, reducing product cost and improving reliability for our clients through our Product Development Process. Why join Simplexity Product Development? If you're an engineer who likes variety in your job, you'll fit right in here. Simplexity works across a breadth of projects - from robotics and IoT to medical devices, consumer wearables, automation and more. You won't be siloed into one tiny piece of the organization; you'll roll up your sleeves and help solve real, difficult problems for demanding clients who expect excellence. Our teams are tight, collaborative, and made up of folks who genuinely want to build something cool and delight our customers. Yet that doesn't mean grinding for 60-hours per week, week-over-week. We believe that...
HL
Apr 12, 2026
Full time
Senior Overhead Contact System (OCS) Engineer
$170,000 - $230,000 yearly
Hatch Ltd Seattle, WA, USA
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!...
CE
Apr 02, 2026
Full time
Water & Wastewater Engineering Designer
$85,000 - $110,000 yearly
Consor Engineers Seattle, WA, USA
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,...
Ae
Mar 27, 2026
Full time
Senior Spacecraft Engineer
Aetherflux Seattle, WA, USA
Senior Spacecraft Engineer About Aetherflux Aetherflux is building the infrastructure to power and connect the orbital economy. Our satellites operate in Low Earth Orbit to collect sunlight and enable a new class of capabilities-from transmitting energy via infrared lasers (space-to-earth and space-to-space), to powering on-orbit compute, to delivering secure, high-bandwidth optical data. By rethinking how energy and data are generated and distributed in space, we're unlocking entirely new ways to operate both in orbit and on Earth. Founded in 2024 by Baiju Bhatt (co-founder of Robinhood), Aetherflux is backed by leading investors and built by a team from top aerospace and defense organizations. We're moving quickly to solve complex technical challenges and build a new category of space infrastructure. The Role We are looking for a Spacecraft Engineer to help design, build, and integrate the core systems that power our satellite platform. You will work across...
Ae
Mar 26, 2026
Full time
Sr. Mechanical Engineer
Aetherflux Seattle, WA, USA
Senior Mechanical Engineer | Job Description About Aetherflux Aetherflux is building the infrastructure to power and connect the orbital economy. Our satellites operate in Low Earth Orbit to collect sunlight and enable a new class of capabilities-from transmitting energy via infrared lasers (space-to-earth and space-to-space), to powering on-orbit compute, to delivering secure, high-bandwidth optical data. By rethinking how energy and data are generated and distributed in space, we're unlocking entirely new ways to operate both in orbit and on Earth. Founded in 2024 by Baiju Bhatt (co-founder of Robinhood), Aetherflux is backed by leading investors and built by a team from top aerospace and defense organizations. We're moving quickly to solve complex technical challenges and build a new category of space infrastructure. The Role As a Senior Mechanical Engineer, you will play a key role in designing and building the physical systems that enable our spacecraft to...
Ae
Mar 26, 2026
Full time
Sr. Avionics Engineer
Aetherflux Seattle, WA, USA
Senior Avionics Engineer (Seattle, WA) About Aetherflux Aetherflux is building the infrastructure to power and connect the orbital economy. Our satellites operate in Low Earth Orbit to collect sunlight and enable a new class of capabilities-from transmitting energy via infrared lasers (space-to-earth and space-to-space), to powering on-orbit compute, to delivering secure, high-bandwidth optical data. By rethinking how energy and data are generated and distributed in space, we're unlocking entirely new ways to operate both in orbit and on Earth. Founded in 2024 by Baiju Bhatt (co-founder of Robinhood), Aetherflux is backed by leading investors and built by a team from top aerospace and defense organizations. We're moving quickly to solve complex technical challenges and build a new category of space infrastructure. The Role The Avionics Engineer is responsible for the design, development, and integration of electrical systems supporting advanced optical and laser...
IC
Mar 19, 2026
Full time
Senior Mechanical Engineer
$125,000 - $250,000 yearly
Interlune Corporation Seattle, WA, USA
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,...
Ta
Mar 13, 2026
Full time
Senior Product Development Engineer
Tasso Seattle, WA, USA
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...
HO
Aug 25, 2025
Full time
Structural Project Engineer - (SEA)
$110,000 yearly
HOK Seattle, WA, USA
HOK is a collective of future-forward thinkers and designers who are driven to face the critical challenges of our time. We are dedicated to improving people's lives, serving our clients and healing the planet. Together, we cultivate a culture of design excellence at the confluence of art and science, blending the power of creative expression with a clear sense of purpose. Project Engineers will be responsible for the successful delivery of small to medium size building projects, or working as part of a large team responsible for an area on major projects, including developing concepts and producing the design. RESPONSIBILITIES: Strategic Looks for ways to improve engineering design and design processes in a particular discipline. Looks for new trends in Engineering design in a particular discipline and how to apply them to our projects. Project Management and Technical Improvement 10% time devoted to project management tasks and technical improvement initiatives....
KC
Apr 12, 2026
Full time
Civil Transportation Engineer 4+ yrs exp (Special Projects)
$104,000 - $130,000 yearly
KPFF Consulting Engineers Seattle, WA, USA
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...
AM
Apr 11, 2026
Full time
Project Director / Sr. Electrical Engineering Project Manager (Renton, WA)
Apollo Mechanical Contractors Seattle, WA, USA
Location: Renton, WA Salary Range: $125,000 to $140,000 Sr. Electrical Design Engineer - Electrical Systems Design and Renewable Energy Systems Design Responsibilities • Assist the sales team in client meetings and presentations • Create, manage, and oversee the scope of work for all electrical systems on all Apollo Solutions Group projects. Help manage client expectations and timelines. • Manage engineering project teammates and provide coaching and mentoring in their career development • Create, manage, and oversee the budgets for the Investment Grade Audits and/or Pre-Construction Services Proposals, and Electrical Design Budgets. • Create, manage, and develop the scope of work and electrical design documents for the projects Apollo Solutions Group will be implementing. • Manage, coach, and mentor junior engineers in their career development. Ensure the projects are staying on schedule during the project development and design phases. • Work with the assigned...
HA
Apr 11, 2026
Full time
Senior Geotechnical Engineer 1
$95,000 - $120,000 yearly
Haley & Aldrich Seattle, WA, USA
Find your path and enjoy the journey at Haley & Aldrich. With us, you'll tackle clients' most meaningful challenges in the built and natural environments - and, in turn, build stronger communities. You'll work with teams of passionate colleagues, driven by a commitment to technical excellence and continuous learning. As a company, we aim to build a world where communities go beyond resilience, embracing change as an opportunity to enhance safety, well-being, and quality of life. Join us to accelerate this vision and your professional development. We are looking to add new talent to our growing team! We are currently seeking an APM/Senior Geotechnical Engineer 1 to work in a technical support role with highly skilled professionals on diverse project teams in a dynamic environment. This is an excellent opportunity to join a growing group and company and get involved in a variety of projects for a diverse range of clients. This is a full-time, hybrid position located in our...
HA
Apr 11, 2026
Full time
Project Manager, Geotechnical Engineer
$115,000 - $150,000 yearly
Haley & Aldrich Seattle, WA, USA
Find your path and enjoy the journey at Haley & Aldrich. With us, you'll tackle clients' most meaningful challenges in the built and natural environments - and, in turn, build stronger communities. You'll work with teams of passionate colleagues, driven by a commitment to technical excellence and continuous learning. As a company, we aim to build a world where communities go beyond resilience, embracing change as an opportunity to enhance safety, well-being, and quality of life. Join us to accelerate this vision and your professional development. We are looking to add new talent to our growing team! We are currently seeking a Project Manager, Geotechnical Engineer to work in a technical support role with highly skilled professionals on diverse project teams in a dynamic environment. This is an excellent opportunity to join a growing group and company and get involved in a variety of projects for a diverse range of clients. This is a full-time, hybrid position located in...
CT
Apr 11, 2026
Full time
Civil Engineer
$85,000 - $105,000 yearly
Cushing Terrell Seattle, WA, USA
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...
CT
Apr 11, 2026
Full time
Electrical Engineer or Designer
$107,000 - $135,000 yearly
Cushing Terrell Seattle, WA, USA
Description Position Description As an Electrical Engineer or Designer you will work with Project Managers in developing energy efficient, sustainable, and reliable engineering system concepts for projects. This position has a demonstrated capability to conduct analyses of existing systems and develop engineering solutions. Senior engineers consult with the client to determine needs, wants, and budgets while determining the functional requirements of new or renovated systems. Engineers schedule projects and related workloads and represent Cushing Terrell in project meetings and assist in strategy meetings. This position checks drawings and prepares feedback for project team(s), directs activities of workers engaged in preparing drawings, and edits or writes specifications including coordination with outside consultants involved in the project. Position Salary Range* The expected salary range for this position is $ 107,000 to $ 135,000 annually. Required...
GC
Apr 04, 2026
Full time
Entry-Level Geotechnical Engineer
$32.29 hourly
Geosyntec Consultants, Inc. Seattle, WA, USA
Overview Do you want to build an impactful career to change the world for the better? Geosyntec has an exciting opportunity for an Entry-Level Geotechnical Engineer in our Seattle, Washington or Wenatchee, Washington offices. The position will have the opportunity to apply academic knowledge to real-world situations on projects involving site characterization; river and floodplain restoration, landfill design and construction; earth retaining structures; deep foundations; dams and water containment structures; forensic investigations and litigation support; geotechnical instrumentation and monitoring; and geohazard / earthquake characterization / mitigation, while learning the business skills needed for a successful consulting career. Geosyntec is an innovative, international engineering and consulting firm serving private and public-sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure. Our...
SE
Apr 03, 2026
Full time
Senior Geotechnical Engineer
$94,447 yearly
Schnabel Engineering Seattle, WA, USA
Schnabel is an employee-owned, professional engineering and consulting firm that focuses on solving problems related to the earth and environment through specialization in geotechnical, geostructural, tunnel, and dam engineering. Schnabel's high standards for quality, business ethics, and concern for the communities in which we live are a vital part of who we are. Schnabel is an ENR Top 500 Design Firm with 700+ employees in 31 offices throughout the United States. Recognized by CE News as one of the Best Engineering Firms to Work for, Schnabel provides employees with a competitive benefits package including maternity leave, tuition reimbursement for continuing education, health, dental, life and disability insurance and a wellness program. As an employee-owned company, through the Employee Stock Ownership Plan, Schnabel employees directly benefit from the success of our growing firm. Benefit options include: Medical insurance Dental insurance Flexible spending accounts...
HL
Mar 28, 2026
Full time
Senior Systemwide Electrical Engineer - Rail Systems, Seattle, WA
$200,000 - $235,000 yearly
Hatch Ltd Seattle, WA, USA
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!...
DE
Mar 08, 2026
Full time
Electrical Senior Engineer
Delta E Consulting Seattle, WA, USA
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...
DE
Mar 01, 2026
Full time
Plumbing Designer/Engineer
Delta E Consulting Seattle, WA, USA
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...
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