Integration Engineer – Fluid & Propulsion Systems

Join Hermeus, a pioneering high-speed aircraft manufacturer, as an Integration Engineer specializing in Fluid & Propulsion Systems. In this dynamic role, you will take charge of the design release, construction, testing, and delivery of essential vehicle fluid, propulsion, and mechanism assemblies, including control surface actuators, spike inlet systems, an…

The aerospace industry is on the brink of a revolution, with spacecraft representing a critical gap that needs to be filled. As more launch vehicles become operational and the costs of reaching orbit decrease, an increasing number of companies are emerging to launch payloads into space.This unprecedented surge in payload companies, coupled with reduced launch costs, has created an enormous demand for commercial spacecraft platforms, commonly referred to as satellite buses. These platforms are essential for housing our customers' payloads and are designed to be launched into space.At Apex, we manufacture these satellite buses at scale, leveraging advanced software, vertical integration, and purpose-engineered manufacturing hardware. Our spacecraft are pivotal to the future of society, supporting endeavors ranging from Earth observation to telecommunications and beyond.Join us in our mission to provide humanity with access to the cosmos beyond our planet.About the RoleApex is in search of a skilled Propulsion Mechanical Engineer to take charge of the mechanical designs for our spacecraft propulsion systems. You will lead the design, analysis, and qualification of propulsion hardware, ensuring its reliability through the demanding conditions of launch and extended on-orbit operations. This role encompasses a variety of responsibilities, including mechanical design, fluid system development, thermal interface management, and flight hardware qualification, with complete oversight from initial concept to flight readiness and operational performance.You will collaborate closely with propulsion, thermal, avionics, and systems engineering teams to deliver robust and reproducible propulsion hardware designed for production spacecraft.

At K2 Space Corporation, we are pioneering the creation of the largest and most powerful satellites ever deployed, pushing performance boundaries across all orbits. Supported by $450 million from top-tier investors such as Altimeter Capital, Redpoint Ventures, T. Rowe Price, and Lightspeed Venture Partners, along with $500 million in signed contracts with commercial and U.S. government clients, we are set to mass-produce the highest-power satellite platforms designed for missions ranging from Low Earth Orbit (LEO) to deep space.The emergence of heavy-lift launch vehicles is transforming the industry from an era of mass limitations to one of mass abundance. We believe this new phase necessitates a fundamentally different class of spacecraft. Our satellites are engineered to endure the harshest radiation environments and maximize the potential of today’s and tomorrow’s powerful rockets, providing unmatched capabilities at a constellation scale across various orbits.With multiple launches scheduled through 2026 and 2027, we are committed to 'Building Bigger' to explore the solar system and evolve into a Kardashev Type II (K2) civilization. If you are an ambitious individual who thrives in a dynamic and fast-paced environment, and if you are eager to contribute to the success of a groundbreaking Series C space startup, we would be thrilled to receive your application.

Apex Technology Inc. designs and manufactures satellite buses in Los Angeles, supporting a new wave of commercial spacecraft. As more organizations send payloads to orbit and launch costs fall, the need for dependable satellite buses continues to grow. Apex meets this demand with a combination of advanced software, vertical integration, and specialized hardware, enabling efficient production for missions ranging from Earth observation to global communications. Role overview The Senior Chemical Propulsion Engineer will lead the design and development of chemical propulsion systems for Apex’s spacecraft bus. This position is the first of its kind at Apex, offering the chance to set the technical direction for propulsion, shape system architecture, and build out both the team and infrastructure. The role is hands-on and foundational, with significant influence over integration and testing processes. What you will do Design, develop, and test chemical propulsion systems for satellite buses Define system architecture and technical requirements for propulsion Oversee integration of propulsion systems with spacecraft hardware and software Establish processes and infrastructure for propulsion system development and testing Collaborate with other engineering teams to ensure spacecraft performance and reliability Location This position is based in Los Angeles, California.

Join our cutting-edge team at Freeform Future Corp as a Mechanical Engineer specializing in Complex Precision Systems. In this role, you will leverage your technical expertise to design, develop, and optimize advanced mechanical systems that push the boundaries of innovation. You will work collaboratively with multidisciplinary teams to deliver high-quality solutions in a fast-paced environment.Your contributions will help shape the future of technology, and you will be at the forefront of engineering excellence. If you are passionate about precision engineering and looking for an opportunity to make an impact, we want to hear from you!

The aerospace industry is on the brink of a revolution, with spacecraft representing one of the most critical unmet needs. As the number of launch vehicles increases and the cost of reaching orbit diminishes, a surge of companies is emerging to launch payloads into space.For the first time, this influx of payload companies, coupled with reduced launch costs, has led to an unprecedented demand for commercial spacecraft platforms, commonly referred to as satellite buses. These buses are essential for housing our customers' payloads, which are deployed aboard launch vehicles.Apex Technology Inc. manufactures these satellite buses at scale, leveraging a mix of innovative software, vertical integration, and manufacturing-centric hardware. Our spacecraft facilitate advancements in society, ranging from Earth observation to communication and beyond.Join us in our mission to provide humanity with access to the cosmos beyond our planet.About the RoleWe are actively seeking a Senior Mechanical Engineer – Ground Systems (MGSE) to become a vital part of our team. In this role, you will design, build, and support the equipment necessary for spacecraft integration, testing, and launch. Working hands-on with hardware, you will collaborate closely with engineering, testing, and manufacturing teams to ensure that our spacecraft are backed by robust, efficient, and scalable mechanical ground support systems.

About Hermeus Hermeus designs and builds high-speed aircraft, focusing on high-Mach and hypersonic vehicles. The company partners with the Department of Defense to deliver advanced flight capabilities that support national and allied interests. Role Overview The Build Engineer - Propulsion position sits at the intersection of engineering, manufacturing, integration, and testing for flight vehicles. This role works hands-on with both design and production teams throughout the lifecycle of propulsion hardware. What You Will Do Own hardware design and tooling for propulsion systems Support and execute testing and vehicle assembly Drive process development for efficient integration and flight readiness Collaborate with design and manufacturing teams to deliver reliable propulsion solutions Who We’re Looking For Hermeus considers candidates at all experience levels, from entry-level engineers to seasoned professionals. Location Based in Los Angeles, CA.

Join Hermes as a Lead Propulsion Component Engineer in Los Angeles, CA, where you will spearhead the development of innovative propulsion components for cutting-edge aerospace applications. In this pivotal role, you'll leverage your extensive engineering expertise to drive projects from concept through to production, ensuring the highest standards of quality and performance.

Parallel Systems is at the forefront of innovation, developing autonomous battery-electric rail vehicles that aim to revolutionize freight transportation by integrating segments of the $900 billion U.S. trucking industry into rail systems. Our cutting-edge technology provides cleaner, safer, and more efficient logistics solutions. Be part of our vibrant team and contribute to creating a smarter, more sustainable future for global freight.Senior Mechanical EngineerWe are looking for a talented Senior Mechanical Engineer with a strong background in dynamics, simulation, and CAD design to assist in designing the next generation of our self-propelled rail vehicles. You will play a critical role in designing and analyzing mechanical systems with a focus on performance, safety, and durability. Ideal candidates should possess experience in vehicle dynamics and structural analysis, particularly in railway or road vehicle applications.

As a Propulsion Component Responsible Engineer at Hermeus, you will play a critical role in the design, development, and validation of propulsion systems for our cutting-edge aerospace technology. Your expertise will help us push the boundaries of hypersonic flight. You will collaborate with cross-functional teams to ensure that our propulsion components meet rigorous performance, safety, and reliability standards.

Join k2spacecorporation as a Propulsion Electrical Test Engineer, where your expertise will play a vital role in advancing propulsion technologies. You will work closely with cross-functional teams to design, implement, and troubleshoot electrical systems in propulsion units. This position offers an exciting opportunity to work on cutting-edge projects in a collaborative environment.

Join Our Team as a Senior Engineering Technician (Mechanical Systems)At Freeform Future Corp, we are pioneers in AI-native manufacturing systems, seamlessly integrating software, hardware, and physics to accelerate the production of industrial-scale parts. Our innovative approach transforms manufacturing into a cohesive system, ushering in a new era of limitless possibilities for designing, building, and scaling complex hardware.As a Senior Engineering Technician (Mechanical Systems), you will collaborate closely with our engineering team to fabricate, assemble, and test cutting-edge hardware for our advanced metal 3D printing factory systems. Your role will also involve the development and maintenance of essential infrastructure systems, including air, water, and inert gases. You will ensure that fabrication and R&D areas are equipped with the necessary tools and equipment, kept clean and organized, and utilized safely. You'll have the chance to operate various machines and tools such as lathes, mills, bandsaws, grinders, precision drills, and wire EDMs. We seek a team-oriented individual with a positive attitude, embodying a 'no job too big or small' mentality. If you thrive in a hands-on, fast-paced development environment and are passionate about creating groundbreaking technology, we would love to hear from you!No prior 3D printing experience is necessary; we are looking for smart, motivated, and collaborative individuals who enjoy tackling challenging problems and contributing to the creation of exceptional technology!

The aerospace industry is experiencing unprecedented growth, with spacecraft becoming an essential component in addressing the increasing demand for satellite services. As more launch vehicles are introduced and costs to access space diminish, a new wave of companies is emerging to fulfill this demand.This surge in payload companies, combined with reduced launch costs, has created a significant need for commercially viable spacecraft platforms, also known as satellite buses. These buses are designed to carry our clients' payloads into orbit.At Apex, we manufacture these satellite buses at scale by leveraging innovative software, vertical integration, and manufacturing-focused hardware. Our spacecraft pave the way for the future of society, facilitating everything from earth observation to advanced communications.We invite you to join our mission to provide humanity with access to the vastness of space.About the RoleApex is on the lookout for a highly skilled Senior Electric Propulsion Engineer to be a vital part of our dynamic team. In this role, you will lead the design and development of propulsion systems tailored to meet the specifications of our spacecraft bus. This is a unique opportunity to start with a clean-sheet design approach, influencing propulsion system architecture, integration, and testing to achieve peak performance.

Join Hermeus as a Propulsion Integration Technician, where you'll work on cutting-edge propulsion systems for high-Mach and hypersonic aircraft. In this pivotal role, you will collaborate closely with engineers to transform design concepts into tangible solutions, offering essential insights into manufacturability and performance. Your hands-on expertise in developing propulsion systems in dynamic prototype environments will drive innovation and contribute to our mission of maintaining national security through advanced aerospace technologies.

Join Hermes as a Propulsion Engineer Intern for the Summer and Fall of 2026! This exciting opportunity allows you to engage in cutting-edge propulsion technology development, collaborating with our talented engineering team to innovate and enhance our aerospace solutions. You will gain hands-on experience, contribute to real projects, and develop your skills in a dynamic and supportive environment.

About UsStandard Subsea is an innovative startup focused on revolutionizing the offshore industry with our cutting-edge unmanned systems. We specialize in the development of uncrewed surface vessels (USVs) that autonomously deploy tethered remotely operated vehicles (ROVs) for the inspection of subsea pipelines, telecom cables, and other critical offshore infrastructure. Our mission is to provide reliable subsea awareness at a significantly reduced cost compared to traditional crewed vessels.The RoleWe are seeking a highly skilled Senior Mechanical Engineer to lead the mechanical design of our autonomous surface vessel platform. In this pivotal role, you will collaborate closely with our Chief Technology Officer to define system architecture while owning major mechanical subsystems, guiding them from detailed design through to fabrication, integration, and field testing. This is a hands-on position ideal for an engineer who has experience in delivering hardware and understands the real-world challenges that designs can face in operational environments.ResponsibilitiesOversee the detailed design and execution of major mechanical subsystems in alignment with the platform architecture.Transform system-level requirements into practical, manufacturable mechanical designs.Create CAD models, drawings, and release packages for fabrication and assembly.Design structures, mounts, housings, and interfaces to withstand marine loads and environmental challenges.Facilitate the integration of mechanical systems with propulsion, electrical, and autonomy hardware.Assist in prototyping, assembly, and on-water testing activities.Analyze field failures and iterate designs based on operational data.Collaborate with vendors and fabricators to optimize design for manufacturability and streamline supply chain processes.QualificationsBachelor’s degree in Mechanical Engineering or equivalent experience.4 to 8 years of experience in designing and deploying mechanical systems within marine, robotics, aerospace, defense, or industrial sectors.Proven track record of taking hardware from prototype to fully operational systems.Strong proficiency in CAD and drawing practices suitable for actual fabrication.Hands-on experience with hardware, tools, and testing setups is essential.Ability to work independently while maintaining alignment with a system-level technical lead.

About UsAt Antares, we are dedicated to revolutionizing clean energy, from our planet to the Asteroid Belt. Our commitment is driven by the belief that advanced nuclear energy can empower our military, address the climate crisis, improve global living conditions, and broaden humanity's reach into space. To fulfill this vision, we are developing mass-producible, inherently safe, deployable microreactors for use on Earth, underwater, and in extraterrestrial environments.Founded in 2023, our team is comprised of seasoned professionals from esteemed organizations such as SpaceX, The White House, MIT, and the U.S. Air Force, among others. Antares has successfully secured over $130 million in venture capital and more than $13 million in government funding.About the RoleAs the Responsible Engineer (RE) for the Cover Gas System, you will spearhead the design, development, testing, and validation of mechanical systems tasked with monitoring fission products released from nuclear fuel while ensuring the reactor core remains inert. You will be responsible for the mechanical architecture of the system, including the sizing and integration of components that interact with electrical and software subsystems. Your role will involve close collaboration across disciplines to define project requirements, documentation, and verification plans.

Join Freeform Future Corp as a Senior Mechanical Engineer and play a pivotal role in designing innovative solutions. You will collaborate with a dynamic team to create cutting-edge mechanical systems that push the boundaries of technology.

DLR Group is a dynamic, integrated design firm committed to enhancing the human experience through innovative design solutions. Our mission is to uplift the lives of our clients, enrich our communities, and protect our planet through our comprehensive design services. If you are passionate about making a difference through design, we invite you to explore this opportunity.Position Overview:We are seeking a talented and experienced Senior Mechanical Engineer to join our Los Angeles office. In this role, you will lead the design of mechanical systems for a diverse range of projects, including Higher Education, Cultural and Performing Arts, Healthcare, K-12, Justice/Civic, and Energy sectors. You will manage mechanical engineering teams to create high-quality construction documents utilizing Revit, ensuring that project schedules align with deliverable timelines. As part of our integrated design team, you will collaborate closely with various disciplines to develop innovative building designs.Your responsibilities will include overseeing the design process of mechanical building systems and preparing comprehensive mechanical engineering drawings and calculations. You will also lead and mentor Mechanical Designers and other team members.

At K2 Space Corporation, we are pioneering the development of the largest and most powerful satellites ever flown, unlocking unprecedented performance across various orbits. Fueled by $450 million in investment from top-tier investors such as Altimeter Capital, Redpoint Ventures, T. Rowe Price, and Lightspeed Venture Partners, alongside an additional $500 million in contracts with commercial and U.S. government clients, we are committed to mass-producing high-power satellite platforms designed for missions ranging from Low Earth Orbit (LEO) to deep space.The emergence of heavy-lift launch vehicles is transforming the industry from mass constraints to mass abundance, necessitating a new class of spacecraft. Our satellites are engineered to withstand the harshest radiation environments while maximizing the capabilities of today’s and tomorrow’s massive rockets, offering unmatched performance at constellation scale across multiple orbits.With multiple launches scheduled through 2026 and 2027, we are dedicated to building a future that develops our solar system and advances us towards becoming a Kardashev Type II (K2) civilization. If you are a driven individual who thrives in a dynamic environment and is eager to contribute to the success of a groundbreaking Series C space startup, we welcome your application.