Thermal Hardware Engineer - Passive & Active Control Systems

Varda Space, Inc. develops commercial infrastructure for low Earth orbit, including in-orbit pharmaceutical manufacturing systems and reentry capsules built for efficiency and cost management. The company’s work aims to make space more accessible and useful, supporting advances in pharmaceuticals and fiber optics while expanding economic opportunities in space for the benefit of life on Earth. The team at Varda brings together experience from organizations such as SpaceX, Blue Origin, leading pharmaceutical firms, and Silicon Valley startups. Founded in January 2021 by Will Bruey and Delian Asparouhov, Varda is supported by investors including Khosla Ventures, Lux Capital, Founders Fund, Caffeinated Capital, General Catalyst, and Also Capital. Headquartered in El Segundo, California, Varda’s team handles design, integration, and testing of vehicles, equipment, and materials at its production facility. The company also maintains offices in Washington, DC, and Huntsville, Alabama. Varda’s mission is to lay the groundwork for an in-space economy.

About VardaLow Earth orbit is open for business. Varda is pioneering the advancement of commercial space infrastructure, from in-orbit pharmaceutical manufacturing to innovative and cost-effective reentry capsules.Our mission is to harness the potential of space to create products that enhance life on Earth, including essential pharmaceuticals and advanced fiber optics. We aim to drive innovation in the orbital economy by establishing the necessary infrastructure and products.Our team combines expertise from veterans of SpaceX, Blue Origin, leading pharmaceutical firms, and Silicon Valley innovators. Founded in January 2021 by Will Bruey and Delian Asparouhov, Varda has secured significant investment from renowned backers such as Khosla Ventures, Lux Capital, Founders Fund, Caffeinated Capital, General Catalyst, and Also Capital.Headquartered in El Segundo, California, Varda operates a production facility where we design, integrate, and test our vehicles, equipment, and materials. We also have offices in Washington, DC, and Huntsville, AL.Join us at Varda and contribute to building a vibrant in-space ecosystem.

Varda develops infrastructure for commercial activity in low Earth orbit. The team creates technologies that enable manufacturing in space, including pharmaceuticals and advanced fiber optics, and engineers reentry capsules to return these products to Earth. Founded in January 2021 by Will Bruey and Delian Asparouhov, Varda unites engineers and leaders with backgrounds at SpaceX, Blue Origin, leading pharmaceutical firms, and Silicon Valley tech companies. Investors include Khosla Ventures, Lux Capital, Founders Fund, Caffeinated Capital, General Catalyst, and Also Capital. The main production facility is in El Segundo, California, where vehicles, equipment, and materials are developed, integrated, and tested. Varda also maintains offices in Washington, DC and Huntsville, Alabama. The company’s mission is to broaden economic opportunities in space and ensure new technologies deliver practical benefits on Earth.

About Varda SpaceUnlocking the Potential of Low Earth Orbit. At Varda, we are pioneering the advancement of commercial space infrastructure, innovating in areas from in-orbit pharmaceutical production to dependable and cost-effective reentry vehicles.With products ranging from life-saving medications to advanced fiber optics, we are committed to developing the technologies that can only be realized in the unique environment of space. Our mission is to enhance the orbital economy, creating products and infrastructure that directly benefit life on Earth.Our team is comprised of industry leaders and experts with backgrounds in SpaceX, Blue Origin, top pharmaceutical firms, and Silicon Valley tech. Founded in January 2021 by visionaries Will Bruey and Delian Asparouhov, we are supported by premier investors such as Khosla Ventures, Lux Capital, Founders Fund, and others.Headquartered in El Segundo, California, Varda features offices and a production facility dedicated to the development and testing of our vehicles, equipment, and materials. Our presence extends to Washington, DC, and Huntsville, AL.Join us at Varda and contribute to building a vibrant in-space ecosystem.

Long Wall Company, established in 2025, is dedicated to advancing missile defense technology for the United States and its allied nations. By leveraging the RS1 and GS0 launch systems, our team is focused on creating containerized, mass-producible missile defense solutions that enable swift and cost-effective flight testing. We believe that enhancing global security and stability necessitates the development of defense technologies that are more affordable, better performing, thoroughly tested, and widely accessible than ever before. We invite you to be a part of this mission.Who We SeekMission-Driven Innovators. We are searching for engineers who approach aerospace challenges with creativity and tenacity. Ideal candidates are those who view setbacks as opportunities for growth and remain committed to delivering optimal solutions for our missions.Accountable Contributors. We value engineers who take full ownership of their work, understanding that collaboration is key to success. The most effective engineers elevate their teammates, as diverse skills create a multiplier effect that drives mission accomplishments.Role OverviewWe are in search of a seasoned avionics technician (S4 or S5) who is passionate about the development and manufacturing of hardware for launch vehicles and defense systems. The ideal candidate will be able to critically analyze and enhance hardware designs and production processes, ensuring that we deliver high-quality components to our projects. Responsibilities include building and testing electrical assemblies and components for our launch vehicles and defense systems, engaging in tasks such as PCB assembly and rework, electro-mechanical assembly, sensor/transducer integration, cable and wire harnessing, final integration, operation of thermal chambers, conducting functional tests, and executing software-driven testing.

Join Picogrid as a Chief Hardware Engineer, where you'll lead the development of cutting-edge hardware solutions. You will be responsible for overseeing the design, prototyping, and testing of innovative hardware products, ensuring they meet both performance and quality standards. Collaborate with cross-functional teams to bring your vision to life while driving strategic initiatives that enhance our technology offerings.

We are looking for a skilled Hardware Test Engineer to join our dynamic team at usm2. This is an exciting opportunity for individuals who are passionate about testing and verifying hardware systems. You will be responsible for developing and executing test plans, troubleshooting hardware issues, and ensuring product quality meets the highest standards.

Join CX2, a pioneering defense technology firm dedicated to achieving spectrum superiority for the United States and its allies. Our cutting-edge, AI-integrated hardware and software solutions are designed to detect, disrupt, and safeguard the electromagnetic spectrum across land, air, sea, and space.We are currently on the lookout for a proactive Hardware Test Engineer to spearhead the development and execution of testing protocols for our hardware products in a dynamic manufacturing setting. In this role, you will be instrumental in validating product performance, reliability, and compliance by designing test procedures, fixtures, and automated testing systems. This position will support both new product introductions (NPI) and high-volume production efforts at our headquarters in El Segundo, CA.

CX2 is an innovative defense technology firm dedicated to establishing spectrum superiority for the United States and its allies. Our cutting-edge AI-driven hardware and software solutions are designed to detect, disrupt, and safeguard the electromagnetic spectrum across various domains including land, air, sea, and space.We are on the lookout for a talented RF Hardware Engineer to join our dynamic team. The successful candidate will possess proven expertise in the design, testing, and construction of RF systems (Tx/Rx) for various RF signal applications, including communications, RADAR, and navigation, spanning UHF to X-Band frequencies.Please note that this position requires an onsite presence at our headquarters in El Segundo, CA; remote work arrangements are not applicable for this role.

Join usm2 as a Hardware Product Testing Specialist, where you will play a pivotal role in ensuring the quality and performance of our innovative hardware products. Your expertise will help shape the future of technology as you conduct rigorous testing processes to identify and troubleshoot issues, ensuring our products meet the highest standards before reaching our valued customers.

make-rain develops autonomous drone fleets and weather modification technology aimed at improving global freshwater access and supporting agriculture. The team tackles large-scale projects using cloud seeding and related techniques to address water scarcity challenges. Role overview This Senior PX4 Developer position is based in El Segundo, CA. The role centers on advancing drone autonomy and embedded systems, with a particular focus on PX4 firmware development and simulation testing. As part of the engineering team, this person will work on projects that push the boundaries of drone technology for environmental impact. What you will do Lead technical efforts within the drone autonomy software stack, acting as a subject matter expert Adapt and enhance PX4 firmware to meet specific mission requirements and flight behaviors Develop embedded firmware, including work on power management, integrating peripherals, and supporting sensors Set up and execute simulation tests using Gazebo, HITL, and SITL environments Support flight testing, analyze flight logs, and troubleshoot software issues as they arise Requirements Extensive programming experience in C and C++ Solid understanding of drone flight dynamics and control systems Hands-on experience with simulation tools and testing workflows Comfortable working independently and making technical decisions Willingness to relocate to El Segundo, California

At Sift, we're revolutionizing the development, testing, and operation of modern machines. Our innovative platform provides engineers with real-time insights into high-frequency telemetry, effectively eliminating bottlenecks and accelerating reliable development.Sift originated from our groundbreaking work at SpaceX on projects such as Dragon, Falcon, Starlink, and Starship—experiences that highlighted the need for scalable telemetry, efficient debugging of flight systems, and unwavering mission reliability. Founded by a talented team from SpaceX, Google, and Palantir, Sift is engineered for mission-critical systems where precision and scalability are paramount.As an early engineer at Sift, your contributions will extend beyond coding; you'll play a key role in defining our architecture, shaping our product, and influencing the culture of a company dedicated to addressing genuine engineering challenges. If you're eager to tackle complex technical problems and have the chance to build foundational systems that support intricate machines, we encourage you to reach out.

We are seeking a talented Senior Software Engineer to join our dynamic team at AMCA in El Segundo, California. In this role, you will be responsible for developing innovative software solutions that enhance our product offerings and drive business success. You will work closely with cross-functional teams to identify and implement new technologies that align with our strategic objectives.The ideal candidate will have a passion for technology, a strong problem-solving mindset, and a desire to contribute to high-impact projects. If you are looking to take your career to the next level in a collaborative and fast-paced environment, we would love to hear from you!

About UsAt Picogrid, we are at the forefront of defense technology, committed to bridging the gap between cutting-edge technology and the pressing needs of national security. Our innovative infrastructure seamlessly integrates sensors, autonomy, and operators, with our solutions actively deployed in military operations globally. Our mission is to provide a tactical edge to protect the United States and its allies.Role OverviewWe are looking for a talented Senior Software Engineer to join our dynamic Legion Platform team. In this role, you will design, develop, and implement high-performance backend systems and integration tools that connect hardware and software across diverse environments and command levels. Your expertise will play a pivotal role in addressing complex system-level challenges and enhancing a resilient platform that supports real-world military operations. This position demands continuous innovation and is ideal for an engineer who excels under pressure and seeks to make an immediate impact on national security.

Join Voyager Technologies Inc. as an Electrical Engineer in Advanced Development where you will be at the forefront of pioneering electrical engineering solutions. This role involves designing, developing, and testing innovative electrical systems and components that will shape the future of technology.

At Sift, we are transforming the landscape of modern machine development, testing, and operation. Our cutting-edge platform empowers engineers with real-time observability over high-frequency telemetry, effectively eliminating bottlenecks and facilitating quicker, more reliable development processes.Founded by innovators from SpaceX, Google, and Palantir, Sift emerged from our groundbreaking work on Dragon, Falcon, Starlink, and Starship at SpaceX, where the demands for scalable telemetry and mission reliability necessitated advanced infrastructure. We are dedicated to mission-critical systems where precision and scalability are essential.As an early engineer at Sift, you will not only write code but also play a vital role in architecting solutions, shaping the product vision, and influencing the company's culture, all while tackling significant engineering challenges. If you are eager to build foundational systems that support complex machines from the ground up, we invite you to connect with us.

About VardaPioneering the Commercial Space Frontier. Varda is at the forefront of developing commercial space infrastructure, ranging from in-orbit pharmaceutical manufacturing to cost-effective reentry capsules.With innovative products such as life-saving pharmaceuticals and advanced fiber optics, Varda is reshaping the orbital economy to yield tangible benefits for life on Earth. Our mission is to push the limits of humanity's economic potential through space.Our talented team is composed of experts from SpaceX, Blue Origin, leading pharmaceutical firms, and Silicon Valley, all driven by the vision of founders Will Bruey and Delian Asparouhov since January 2021. We are supported by prestigious investors including Khosla Ventures, Lux Capital, Founders Fund, and General Catalyst.Headquartered in El Segundo, California, our production facility is where we design, build, and test our vehicles, equipment, and materials. We also have offices in Washington, DC and Huntsville, AL.Join us at Varda to help create a thriving ecosystem in space.About This RoleAs a Mechanisms Engineer on Varda’s Payload team, you will design and develop advanced electromechanical flight hardware that operates in the harsh conditions of orbit, withstands hypersonic reentry, and returns to Earth for assessment and refinement. You will take complete ownership of payloads for both pharmaceutical production and hypersonic reentry testing, guiding projects from concept through assembly, testing, launch, and recovery.

Join Voyager Technologies Inc. as an Electrical Engineer in Advanced Development. We are looking for innovative thinkers with a passion for technology and engineering to contribute to cutting-edge projects. In this role, you will work on advanced electrical engineering solutions, collaborating with a dynamic team of professionals to push the boundaries of technology.

Senior Manufacturing EngineerJoin Radiant Industries as a Senior Manufacturing Engineer, where you will collaborate with design engineers to revolutionize the production of intricate mechanisms and structures essential to our innovative microreactor technology. Your role will be critical in ensuring the reliability, safety, quality, and timely delivery of the Kaleidos demonstration unit, set for testing at the Idaho National Lab in 2026—marking the first new reactor design in over 50 years.Key Responsibilities:Oversee the manufacturing and inspection processes of vital components and assemblies within the Kaleidos microreactor.Collaborate with design engineers to create innovative production methods for complex mechanisms and structures.Develop, validate, and optimize manufacturing processes to fulfill all design and business requirements, including safety, quality, efficiency, and delivery timelines.Formulate and implement manufacturing specifications and fabrication instructions.Manage the manufacturing bill of materials (mBOM) for components and assemblies.Identify, evaluate, and establish partnerships with suppliers for component sourcing and fabrication.Identify, plan, and execute upgrades to capital equipment, machinery, and layout to adapt to evolving production needs.Lead initiatives that promote continuous improvements in manufacturing processes and product quality.