Senior Thermal Engineer jobs in Lexington – Browse 103 openings on RoboApply Jobs

Senior Thermal Engineer jobs in Lexington

Open roles matching “Senior Thermal Engineer” with location signals for Lexington. 103 active listings on RoboApply Jobs.

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Anduril Industries logo
Senior Thermal Engineer

Anduril Industries

Full-time|On-site|Lexington, Massachusetts, United States

Join Anduril Industries as a Senior Thermal Engineer, where you will be at the forefront of innovation in defense technology. In this role, you will be responsible for designing, analyzing, and implementing thermal systems for advanced defense applications. Your expertise will contribute to the development of cutting-edge solutions that enhance operational e…

Apr 6, 2026
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Anduril Industries logo
Senior Thermal Analyst

Anduril Industries

Full-time|On-site|Lexington, Massachusetts, United States

Join Anduril Industries as a Senior Thermal Analyst, where you will play a pivotal role in advancing our cutting-edge defense technology. In this dynamic position, you will be responsible for analyzing thermal systems, developing simulations, and optimizing performance metrics to support our mission of enhancing national security.

Apr 6, 2026
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Anduril Industries logo
On-site|On-site|Lexington, Massachusetts, United States

Join Anduril Industries as a Senior Thermal Aerodynamics Engineer and play a pivotal role in shaping the future of defense technology. In this dynamic position located in Lexington, MA, you will lead thermal analysis efforts and manage the thermal design elements across various hardware development projects. Your expertise will guide preliminary design architectures, develop intricate analytical models to enhance prototype designs, and produce predictions that support rigorous hardware testing. If you thrive in a fast-paced environment and are passionate about driving innovation from concept to production while developing validated models for cutting-edge systems, this opportunity is for you.

Feb 11, 2026
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Anduril Industries logo
Senior Thermal Analyst

Anduril Industries

On-site|On-site|Lexington, Massachusetts, United States

Join Anduril Industries as a Senior Thermal Analyst in Lexington, MA, where you will play a pivotal role in executing thermal analysis and overseeing thermal design elements across various hardware development programs. You will conduct first-order assessments of designs to guide preliminary architecture, create detailed analytical models to enhance prototype designs, and generate predictions to support rigorous hardware testing. If you are passionate about advancing military technology and thrive in a fast-paced environment, we want to hear from you!

Feb 11, 2026
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Holder Construction Company logo
Senior Operations Engineer

Holder Construction Company

Full-time|On-site|Lexington, Kentucky

Holder Construction Company is recognized as one of the leading firms in the construction industry and consistently features on ENR’s Top 400 Contractors list. The company values results, acknowledges strong performance, and encourages career growth through structured advancement. Team members who show capability have opportunities to step into larger roles. Holder manages projects throughout the United States. Role overview The Senior Operations Engineer will be part of the Operations team, working at a project site in Franklin Furnace, Ohio. This is a full-time, on-site position based near Lexington, Kentucky. Compensation and benefits Annual bonus program Paid time off Health, dental, vision, and life insurance 401(k) retirement plan Night and swing shift differential pay for select roles

Apr 24, 2026
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Anduril Industries logo
Full-time|On-site|Lexington, Massachusetts, United States

Role Overview Anduril Industries is hiring a Senior Production Software Engineer in Lexington, Massachusetts. This position focuses on building and delivering software for defense and security applications. The work involves designing, developing, and deploying software that solves difficult technical problems in the field. What You Will Do Work closely with a skilled engineering team to create production-ready software Contribute to the design and implementation of solutions for complex technical challenges Support the deployment and ongoing improvement of Anduril’s products Impact Senior engineers at Anduril play a key role in shaping both the technology and the success of the company’s defense and security products. This is a hands-on role with direct influence over product quality and performance.

Apr 17, 2026
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KPFF Consulting Engineers logo
Full-time|On-site|Lexington

We are looking for a dynamic and growth-oriented Structural Engineer to enhance our Lexington team. In this pivotal role, you will contribute to a variety of innovative projects from conception to completion, while actively shaping the future of our office. We are dedicated to providing the tools and mentorship necessary for your professional development, all while ensuring a flexible environment that allows you to maintain a healthy work-life balance.Why Choose KPFF?At KPFF, we prioritize your career aspirations and overall well-being. We offer extensive opportunities for personal and professional growth, including collaboration with seasoned mentors, exposure to diverse projects, and participation in our Technical Excellence Program aimed at fostering your ongoing development.We recognize the significance of work-life integration within our culture, promoting balance and offering flexible scheduling options to accommodate your personal commitments. Our competitive compensation package includes a generous benefits plan and paid overtime to ensure you are rewarded for your contributions.Primary Responsibilities:Lead the planning, design, and execution of structural engineering projects, emphasizing efficiency and innovative solutions.Mentor project engineers and BIM team members, guiding them through complex projects and supporting their professional growth.Engage with clients to ensure effective communication and delivery of tailored solutions.Contribute to KPFF's mission of becoming a sustainable organization focused on employee satisfaction, client happiness, exceptional engineering, and robust financial outcomes.Conduct feasibility studies, site assessments, and structural evaluations.Oversee the creation of engineering drawings, calculations, specifications, and reports, ensuring adherence to building codes and standards.Identify project risks and implement effective mitigation strategies.

Mar 13, 2026
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Xometry logo
Full-time|On-site|Lexington, KY

Xometry (NASDAQ: XMTR) is revolutionizing the manufacturing landscape of today and tomorrow by bridging innovative thinkers with the manufacturers capable of realizing their visions. Our digital marketplace equips manufacturers with essential resources for business growth while simplifying the process for Fortune 1000 companies to access global manufacturing capabilities.We are on the hunt for a skilled and engaging Senior Solutions Engineer to join our team. This pivotal role is designed to enhance our Sales efforts by providing valuable insights, feedback, and expertise acquired through direct engagement with the aerospace and defense engineering and manufacturing sectors. As a Senior Solutions Engineer, you will blend customer interaction, technical knowledge, and project management skills to support our Pre-Sales Engineering community, which operates under the guidance of both Sales and Operations.This is a fantastic opportunity to be part of a vibrant and expanding company at the cutting edge of digital manufacturing. If you are an accomplished, team-oriented engineer with a passion for the aerospace sector, we encourage you to consider this exciting role.

Feb 2, 2026
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Xometry logo
Full-time|On-site|Lexington, KY

Join Xometry as a Senior Application Engineer specializing in CNC Machining. In this pivotal role, you will leverage your engineering expertise to support our clients in optimizing their manufacturing processes. You will work closely with our production teams to ensure precision and efficiency in CNC machining operations.As a member of our innovative team, you will have the opportunity to tackle complex engineering challenges, develop tailored solutions for our customers, and contribute to the continuous improvement of our services.

Mar 25, 2026
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designworkstalent logo
Full-time|On-site|Lexington

About the Role designworkstalent is hiring a Senior Project Manager with a focus on Forensic Engineering in Lexington. This position leads complex projects from start to finish, making sure work meets both safety and quality standards. The Senior Project Manager works closely with teams from different disciplines, clients, and stakeholders to address challenging issues and deliver solutions on schedule.

Apr 15, 2026
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Anduril Industries logo
Senior Firmware Engineer

Anduril Industries

Full-time|On-site|Lexington, Massachusetts, United States

Join Anduril Industries as a Senior Firmware Engineer, where you will play a crucial role in developing innovative firmware solutions for advanced defense technologies. You will collaborate with a talented team to design, implement, and test firmware for cutting-edge systems, ensuring they meet the highest standards of performance and reliability.

Apr 10, 2026
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Xometry logo
Full-time|On-site|Lexington, KY

Join Xometry as a Senior Solutions Engineer, specializing in the field of injection molding. In this dynamic role, you will leverage your expertise to provide innovative solutions and technical support to our clients. Your contributions will be vital in enhancing project outcomes and fostering strong customer relationships.

Mar 6, 2026
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Speechify logo
Full-time|Remote|Lexington, KY, USA

About Speechify Speechify helps over 50 million people worldwide turn written content into audio. Our suite covers iOS, Android, Mac, Chrome, and web, making content like PDFs, books, Google Docs, news articles, and websites accessible as speech. We aim to remove barriers to learning by making reading easier and more inclusive. Recognition includes Google’s Chrome Extension of the Year and Apple’s 2025 Design Award for Inclusivity. The team is fully remote, with nearly 200 professionals. Our engineers, AI researchers, and product experts come from companies like Amazon, Microsoft, and Google, as well as startups such as Stripe, Vercel, and Bolt. Many hold degrees from Stanford and other top universities. Role Overview: Senior Software Engineer – Windows/Desktop Applications This role focuses on building and maintaining native Windows desktop applications for Speechify. The work centers on ensuring high performance, accessibility, and a seamless user experience across Windows 10 and 11. Key Responsibilities Design, architect, and develop native Windows desktop apps using Windows App SDK, WinUI, C#, XAML, and sometimes C++. Set standards for Windows desktop development, emphasizing code structure, performance, memory management, UI responsiveness, compatibility, and maintainability. Lead accessibility efforts by implementing and validating support for accessibility APIs, including Microsoft UI Automation. Ensure UI controls, keyboard navigation, screen-reader support, and usability for people with disabilities. Work closely with product designers, UX researchers, QA, and other teams to define features, UI/UX architecture, and the roadmap for Windows products. Manage the feature lifecycle from idea to release, maintaining quality and reliability in every update. Troubleshoot and resolve complex issues, such as bugs, performance bottlenecks, memory leaks, and compatibility challenges. Propose strong architectural or design solutions as needed. Location Remote, based in Lexington, KY, USA.

Apr 20, 2026
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Xometry logo
Full-time|$101K/yr - $150K/yr|On-site|Lexington, KY

Xometry (NASDAQ: XMTR) is revolutionizing the manufacturing landscape by bridging the gap between innovative ideas and skilled manufacturers capable of turning them into reality. Our digital marketplace equips manufacturers with essential resources for business expansion while enabling Fortune 1000 buyers to access global manufacturing capabilities seamlessly.We are on the lookout for a dynamic and experienced Senior Solutions Engineer to join our team. This pivotal customer-facing role will collaborate closely with our Sales department, offering insights, feedback, and expertise gleaned from direct interactions within the aerospace and defense engineering sector. This position uniquely combines customer engagement, technical acumen, and project management skills. The Solutions Engineer will report to the Pre-Sales Engineering team, which is overseen by both Sales and Operations.Join us in this exciting opportunity to be part of a forward-thinking company that is at the cutting edge of digital manufacturing. If you are a passionate, experienced engineer with a strong team spirit and a keen interest in the aerospace industry, this role could be an excellent fit for you.

Feb 2, 2026
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Anduril Industries logo
Full-time|$146K/yr - $194K/yr|On-site|Lexington, Massachusetts, United States

At Anduril Industries, we are a pioneering defense technology company dedicated to revolutionizing military capabilities for the U.S. and its allies through innovative technologies. By integrating the best practices and cutting-edge solutions of 21st-century companies into the defense sector, we are redefining the approach to the design, manufacturing, and deployment of military systems. Our advanced systems are powered by the Lattice OS, an artificial intelligence-driven operating system that transforms vast data streams into a real-time, 3D command and control interface. As the global landscape evolves into an era of strategic competition, Anduril is committed to delivering next-generation autonomy, artificial intelligence, computer vision, sensor fusion, and networking technologies to military operations in remarkably short time frames.ABOUT THE TEAMThe Anduril Imaging team specializes in developing cutting-edge imaging systems that span both hardware and software, addressing the most pressing security challenges faced by the U.S. and its allies. Our focus is on leveraging computer vision, perception, electro-optical, infrared, and sensor data to provide our warfighters and partners with a strategic advantage.ABOUT THE JOB:We are actively seeking a talented Senior Mechanical Engineer to join our innovative team. This role will center on the design and development of advanced complex electro-mechanical systems, structural designs, and electronic packaging. The successful candidate will possess a robust background in mechanical design, enabling them to contribute significantly to our projects.

Mar 27, 2026
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Anduril Industries logo
Full-time|On-site|Boulder, Colorado, United States; Lexington, Massachusetts, United States

Anduril Industries seeks a Senior Systems Engineer specializing in Electro-Optical/Infrared (EO/IR) systems. This role is available in Boulder, Colorado or Lexington, Massachusetts. Role overview This position centers on advancing EO/IR technologies for defense-related projects. The Senior Systems Engineer will play a key part in shaping solutions that meet demanding technical and mission-driven requirements. What you will do Develop and improve EO/IR technologies to support defense applications. Collaborate with engineers and scientists to address complex technical challenges. Use deep knowledge of EO/IR systems to help drive project objectives and meet mission needs. Locations Boulder, Colorado, United States Lexington, Massachusetts, United States

Apr 21, 2026
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Anduril Industries logo
Full-time|$146K/yr - $194K/yr|On-site|Lexington, Massachusetts, United States

Company Overview Anduril Industries develops technology for defense, focusing on enhancing military capabilities for the U.S. and its allies. The company brings expertise from leading sectors into the defense industry, aiming to improve how military systems are designed, produced, and delivered. Lattice OS, Anduril’s AI-powered operating system, turns large data streams into a real-time, 3D command and control center. Anduril delivers solutions in autonomy, AI, computer vision, sensor fusion, and networking to military operations on rapid timelines. Imaging Team The Imaging team at Anduril builds advanced imaging systems that integrate hardware and software to address security challenges. Their work combines computer vision, perception, electro-optical and infrared technology, and sensor data to give U.S. and allied warfighters a technological edge. Role Overview: Senior Manufacturing Engineer, Electrical Systems This Senior Manufacturing Engineer role centers on electronics and is based in Lexington, MA. The engineer will oversee manufacturing processes for electronic and electromechanical assemblies, focusing on cost-effective production, reliable testing, and scalability to meet demand. Key Responsibilities Own and optimize manufacturing processes for electronic and electromechanical assemblies. Serve as the main contact on the production floor for diagnosing and resolving complex electrical and electromechanical failures. Lead root-cause analysis and implement corrective actions to improve First Pass Yield and reduce rework. Collaborate on new product introductions, working closely with Design Engineering, Quality, and Supply Chain teams. Continuously improve the value stream to support growing production needs. What We’re Looking For Extensive hands-on experience in electronics troubleshooting and functional test development. Strong grasp of DFM (Design for Manufacturability) and DFT (Design for Testability) principles. Analytical and data-driven approach to problem solving. Comfort working in environments with limited resources and shifting priorities. Ownership mentality, with a focus on refining hardware build processes for consistency and reliability. Location Lexington, Massachusetts, United States

Apr 14, 2026
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Xometry logo
Full-time|On-site|Lexington, KY

Xometry (NASDAQ: XMTR) empowers modern industries by connecting innovative thinkers with manufacturers equipped to turn their ideas into reality. Our digital marketplace provides manufacturers with essential resources for growth while enabling Fortune 1000 buyers to access global manufacturing capabilities seamlessly.We are on the lookout for a Senior Machine Learning Engineer to join our dynamic team. The ideal candidate will elevate our machine learning initiatives, working in an environment where AI is central to our strategy. You will collaborate with a highly skilled group that takes pride in their work and thrives on continuous learning and coding. Your contributions will be vital to the Xometry platform, making your role impactful and significant.

Feb 2, 2026
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Anduril Industries logo
Full-time|$146K/yr - $194K/yr|On-site|Lexington, Massachusetts, United States

Anduril Industries develops advanced defense technology for the U.S. and allied militaries, focusing on rapid delivery of autonomy, AI, computer vision, sensor fusion, and networking solutions. The company's systems run on Lattice OS, a platform that translates large data streams into a real-time 3D command and control environment. Team focus The Quality Engineering team is responsible for upholding high standards across all operations. Team members collaborate closely to identify and resolve quality issues, using data-driven methods to improve processes and product reliability. The group values continuous improvement and encourages innovation in every aspect of quality assurance. Role overview This Senior Quality Engineer position is based in Lexington, MA, with an upcoming move to Waltham, MA. The role centers on ensuring manufacturing processes and products meet strict quality standards. Daily work includes conducting detailed inspections, analyzing data, and partnering with cross-functional teams to build and maintain quality assurance protocols. Requirements Experience with quality management systems in regulated environments Proficiency in statistical process control Strong analytical skills and attention to detail Proactive approach to problem solving

Apr 29, 2026
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Anduril Industries logo
Full-time|$146K/yr - $194K/yr|On-site|Lexington, Massachusetts, United States

Anduril Industries is at the forefront of defense technology, dedicated to enhancing the capabilities of the U.S. military and its allies through innovative technological advancements. By integrating the expertise, cutting-edge technologies, and business models characteristic of the most progressive companies in the 21st century, Anduril is revolutionizing the design, production, and sales of military systems. Our suite of systems operates on Lattice OS, an AI-driven platform that transforms vast data streams into a real-time, 3D command and control interface. As global strategic landscapes evolve, Anduril is committed to delivering state-of-the-art autonomy, artificial intelligence, computer vision, sensor fusion, and networking solutions to the military in a matter of months rather than years.ABOUT THE JOB:As a Senior Product Sourcing Engineer, you will lead the strategic development of our supply network and oversee cost management for Anduril's product hardware throughout their life cycles. This role involves close collaboration with suppliers and cross-functional teams, including engineering, quality assurance, and manufacturing.WHAT YOU'LL DOFacilitate supplier selection for specific products using our approved supplier list.Collaborate with strategic suppliers to expedite product development, engaging in activities such as:Rapid concept scoping to finalize requirements.Conduct feature trade-off analyses and trade tables.Develop should-cost and clean sheet models.Manage joint design development with explicit statements of work.Simulate mechanical and electronics designs.Lead the creation and consolidation of a manufacturing Bill of Materials (BOM), collaborating with Quality and Manufacturing teams.

May 1, 2026

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Senior Thermal Engineer jobs in Lexington | RoboApply Jobs