23 senior thermal engineer jobs found

Shield AI is a venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include Hivemind autonomy software, V-BAT and X-BAT aircraft, and Aechelon simulation and synthetic reality technologies. With offices and facilities across the U.S., Europe, the Middle East, and Asia-Pacific, Shield AI's technology actively supports operations worldwide. For more information, visit www.shield.ai. Follow Shield AI on LinkedIn, X, Instagram, and YouTube. Job Description: Shield AI is seeking a Principal Aerostructures Design Engineer to play a critical role in the development of structural components for our next-generation autonomous aircraft. As a senior member of the Mechanical Engineering team, you will own the design and development of high-performance structural systems, from clean-sheet concepts to production-ready hardware. You'll work across disciplines to ensure structural integrity, manufacturability,...

About Portal Portal Space Systems is on a mission to expand humanity's freedom of movement in space. We're building the spacecraft that makes that mission possible. From our Bothell, WA headquarters, we design vehicles with the maneuverability, resilience, and adaptability needed for the next era of orbital operations. Every system we build is in service of a simple idea: space should be more accessible, responsive, and capable. Joining Portal means stepping into a team that believes in bold engineering, fast iteration, and the power of small groups to change what's possible. If you want your work to directly shape the future of in-space mobility, join us. About the Role To build our spacecraft, we need experienced engineers who can directly own the full product lifecycle of mission-critical space mechanisms. These systems may include electromechanical actuators, hold-down and release mechanisms, separation systems, deployment hinges, dampers, latches, locking devices, and...

About Portal Portal Space Systems is on a mission to expand humanity's freedom of movement in space. We're building the spacecraft that makes that mission possible. From our Bothell, WA headquarters, we design vehicles with the maneuverability, resilience, and adaptability needed for the next era of orbital operations. Every system we build is in service of a simple idea: space should be more accessible, responsive, and capable. Joining Portal means stepping into a team that believes in bold engineering, fast iteration, and the power of small groups to change what's possible. If you want your work to directly shape the future of in-space mobility, join us. Position Summary The Senior Supplier Quality and Materials Engineer is responsible for ensuring suppliers can consistently manufacture compliant, reliable spaceflight hardware while providing materials and manufacturing-process expertise during sourcing and engineering decisions. The role leads supplier qualification,...

Title: Senior Mechanical Design Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security communities. In this position, your work will have a profound impact on the country's most critical role - protecting our national security. KBR is seeking a Senior Mechanical Design Engineer with strong CAD proficiency and leadership experience to join our growing team of engineers supporting cutting-edge defense programs. The successful candidate will lead mechanical design efforts and collaborate with cross-disciplinary teams to develop commercial systems and components. Why Join Us? Innovative Projects: KBR's work is at the forefront of engineering, logistics, operations, science, program management, mission IT and cybersecurity solutions. Collaborative Environment : Be part of a dynamic team that thrives on collaboration and...

At Janicki Industries, we turn complex ideas into real-world solutions through advanced engineering and manufacturing. Our teams design and build innovative structures, tooling, and systems that support industries including aerospace, space, defense, marine, and architecture. Across every role-from engineers and technicians to operations and support teams-our people help solve challenging problems, push the limits of design and manufacturing, and create solutions that make a lasting impact. This position is located in Sedro Woolley, Washington State. Department Summary: We are looking for a Senior Mechanical Engineer to design and develop gearboxes and power transmission systems used in industrial equipment and heavy machinery. This role will directly support our machine build efforts as we expand our capabilities and locations. The ideal candidate has a strong foundation in gear theory, mechanical design, and structural analysis, and enjoys taking a product from concept...

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 DESCRIPTION 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...

Description Who we are At nLIGHT, we are constantly on the cutting-edge of laser technology in a massively growing market. We are a leading provider of high-power semiconductors and fiber lasers for industrial, microfabrication, and aerospace & defense applications, to name a few. Our lasers are changing not only the way things are made, but also changing the things that can be made. Headquartered in Camas, Washington, nLIGHT is a publicly listed company (NASDAQ: LASR). Position Summary nLIGHT is seeking a Senior Mechanical Engineer to own hardware design and development efforts of high-power laser diode modules from concept through production. Key Responsibilities Contribute to and lead mechanical design efforts for the development of new laser diode products and tooling to support manufacturing and testing Generate innovative hardware architectures to meet performance, environmental, reliability and cost requirements Apply DFSS principals throughout...

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. POSITION DESCRIPTION Simplexity is seeking a hands-on senior mechanical engineer to work embedded with our team at a Seattle-area client on a cutting-edge robotics product. You will own mechanical subsystems from requirements through working hardware, validation, and release-quality documentation. This is a technical individual contributor role, not a people-management position. You will lead subsystem decisions, coordinate interfaces, communicate risks, and personally perform design, analysis, drawing, prototype, and test work. The role is best suited to an engineer who can execute effectively when requirements and priorities are still...

Cowboy Space Corp. 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 powering on-orbit compute, to transmitting energy via infrared lasers (space-to-earth and space-to-space), 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), Cowboy Space Corp. 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. About the Role : We are seeking a Senior TCA Mechanical Design Engineer with deep expertise in manufacturing processes, tooling design, and specialized fabrication methodologies to support rocket engine...

Agile Space Industries is a rapidly growing supplier of propulsion hardware and engineering services for the space industry. Headquartered in Durango, Colorado, with expanding operations in and Tulsa, Oklahoma, and upcoming growth in Seattle, Washington, Agile has achieved more than 40% year-over-year growth for the past three years, and our momentum continues to accelerate. At Agile, we design, build, and test in-space propulsion systems that give spacecraft the ability to maneuver with precision, reliability, and purpose. Our technologies play a critical role in missions that range from lunar landings and resource utilization to national defense, human exploration, and commercial space transport. We are seeking bold and driven individuals who thrive in a hands-on, fast-moving environment and want to help write the next chapter of space history as part of a close-knit, innovative team. You will take on a demanding and rewarding role at Agile, directly shaping the future of...

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? Simplexity works across a breadth of projects - from robotics and IoT to medical devices, consumer wearables, automation and more. You'll roll up your sleeves and help solve 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 quality, creative work can usually be done in 40-45 hours per week and that each employee should own their work-life balance. What we offer is...

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 New Shepard program. New Shepard is a reusable suborbital rocket system designed to take astronauts and research payloads past the Kármán line - the internationally recognized boundary of space. Through operational reusability, New Shepard supports our mission of lowering the cost of access to space. Blue Origin's test stands take on some of the most extreme structural loads in the industry - thermal shock, blast-level impulsive loads, and dynamic forces from rocket engine firings. As a Structural Engineer on the Ground System...

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. 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,...

Shield AI is a venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include Hivemind autonomy software, V-BAT and X-BAT aircraft, and Aechelon simulation and synthetic reality technologies. With offices and facilities across the U.S., Europe, the Middle East, and Asia-Pacific, Shield AI's technology actively supports operations worldwide. For more information, visit www.shield.ai. Follow Shield AI on LinkedIn, X, Instagram, and YouTube. Job Description: Shield AI is seeking a Senior Manager, Mechanisms Engineering to support the development of mechanisms for our next-generation autonomous aircraft program. As a contributor on the Launch and Recovery Vehicle team you will lead the design and development of high-performance mechanisms from concept through production release. In this role, you'll lead and contribute to the development of complex, mission-critical technologies while guiding a...

About Portal Portal Space Systems is on a mission to expand humanity's freedom of movement in space. We're building the spacecraft that makes that mission possible. From our Bothell, WA headquarters, we design vehicles with the maneuverability, resilience, and adaptability needed for the next era of orbital operations. Every system we build is in service of a simple idea: space should be more accessible, responsive, and capable. Joining Portal means stepping into a team that believes in bold engineering, fast iteration, and the power of small groups to change what's possible. If you want your work to directly shape the future of in-space mobility, join us. About the Role To build our spacecraft, we need experienced engineers who can directly own the full product lifecycle of mission-critical space mechanisms. These systems may include electromechanical actuators, hold-down and release mechanisms, separation systems, deployment hinges, dampers, latches, locking devices, and...

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. About the Role This role is part of the Lunar Permanence business unit, which develops Blue Origin's Blue Moon lander product lines. To further Blue Origin's mission of having millions of people living and...

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...

Principal Materials Engineer, High-Temp Composites Position: On-Site Kent, Washington (Must be willing to relocate to our Kent location) About ContinuousComposites: At Continuous Composites Inc., we are redefining what is possible in advanced manufacturing. Our unique CF3D® technology for composite 3D printing opens new frontiers in Aerospace and Defense. We thrive on innovation, rapid iteration, and empowering every team member to take initiative and drive breakthrough solutions. Our mission is to transform industrial manufacturing through pioneering research, creative problem-solving, and relentless execution. PositionSummary: The Continuous Composite Engineering Team is seeking a Principal Materials Engineer to support in-house efforts to develop High Temperature Composites for real world applications. In this role, you will lead the Materials Team to develop and define the method to create Ceramic Matrix Composites (CMCs), leveraging our Continuous Fiber (CF3D) Printing...

About Continuous Composites: At Continuous Composites Inc., we are redefining what is possible in advanced manufacturing. Our unique CF3D® technology for composite 3D printing opens new frontiers in Aerospace and Defense. We thrive on innovation, rapid iteration, and empowering every team member to take initiative and drive breakthrough solutions. Our mission is to transform industrial manufacturing through pioneering research, creative problem-solving, and relentless execution. Position Summary: Position: On-Site Kent, Washington (Must be willing to relocate to our Kent location) The Continuous Composite Engineering Team is seeking a Principal Manufacturing and Process Engineer to support in-house efforts to develop High Temperature Composites. In this role you will work with the engineering and operations team to develop and refine Continuous Fiber (CF3D) Printing process for high temperature composites. This role will require getting your hands dirty and standing up a...

Location: Everett, WA Fluke Calibration is seeking an experienced Staff Systems Engineer with a strong mechanical engineering foundation to provide product design and cross-disciplinary technical leadership for Temperature Calibration (TCAL) products, sustaining industry-leading calibration baths, dry-wells, furnaces, and metrology standards while contributing to next-generation platform designs. This role is based in Fluke Park HQ Everett, WA. You will perform hands-on mechanical and thermal design work as an individual contributor while also leading cross-functional projects that span electrical, embedded software, metrology, and manufacturing, translating requirements across disciplines and balancing metrology performance with manufacturability and long-term supportability. This role requires strong technical judgment and cross-functional influence, partnering with a small, deeply experienced team of temperature and pressure calibration specialists within the broader Fluke...