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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Integration Engineer - Fluid & Propulsion Systems - **Company:** HERMEUS CORPORATION - **Location:** Los Angeles, CA, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Computer-Aided Design, Serialization, Hardware Design, Integrated Development Environments, Break Fix - **Published:** October 17, 2026 - **Apply:** https://www.thejobnetwork.com/job/34e7c064-5887-49ba-b9b3-f5dafa96ea97/integration-engineer-fluid-propulsion-systems ## About the Role * Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or related technical field. * 3+ years of hands-on experience in hardware integration, assembly, or manufacturing of fluid, propulsion, or mechanical systems. * Familiarity with aerospace assembly best practices, including precision fitting, torque control, and contamination prevention. * Exposure to tolerance stack-up analysis, system P&ID development, actuator testing, leak checks, and valve assembly or test. * Strong understanding of GD&T, CAD modeling, and first-principles design and analysis. * Proven ability to communicate effectively across design, manufacturing, supply chain, and test organizations. * Demonstrated initiative and ownership, with the ability to define and implement new processes from scratch. Preferred Skills and Experience * Experience supporting new product introduction or flight hardware integration in an aerospace or defense environment. * Direct experience authoring and executing build work instructions and leading complex first-time build efforts. * Familiarity with pressurized systems, hazardous operations, or test campaigns involving cryogenic, pneumatic, or propellant systems. * Experience with welded tube, valve, or manifold assemblies (TIG, MIG, or laser welding). * Exposure to R&D or low-rate production environments, including vendor engagement, tooling development, and hands-on troubleshooting. * Strong systems-level understanding of propulsion and fluid control architectures. Additional Requirements * Must be willing to be hands-on in a manufacturing and test environment daily. * Ability to lift up to 25 lbs and work safely around high-pressure systems and industrial equipment. * Extended or flexible hours may be required to support critical build and test milestones. The salary range listed for this role is intended as a general guideline. Final compensation will be determined based on a variety of factors, including role scope and responsibilities, relevant experience, education and training, key skills, market data, and business needs. ## Description About The Role: We are seeking an Integration Engineer to own the design release, build, test, and delivery of key vehicle fluid, propulsion, and mechanism assemblies - including control surface actuators, spike inlet systems, engine integration, and other mission-critical hardware. You will serve as the technical bridge between design, manufacturing, and test, ensuring our hardware is built with precision, efficiency, and reliability. This role requires a hands-on engineer with a strong background in mechanical systems, propulsion, and fluids - capable of driving complex assemblies from concept through validation in a fast-paced, first-principles environment. Responsibilities * Provide design feedback to improve manufacturability, assembly, testability, and integration for complex fluid and propulsion systems. * Establish and maintain build roadmaps for assigned assemblies to align key stakeholders, drive hardware and tooling deliveries, and minimize build serialization. * Develop and release build CONOPS, work instructions, standard processes, and procedures to enable high-quality, high-velocity execution. * Lead and support first-article builds in an early-stage, rapid-development environment, identifying and resolving issues in real time. * Own design, process, and capital equipment trades to unlock key production capabilities and support scalable manufacturing infrastructure. * Drive make-vs-buy decisions and collaborate closely with design engineering, manufacturing, and supply chain teams. * Provide hands-on support during build, integration, and test operations, ensuring technical issues are addressed quickly and effectively. * Support test readiness activities, including component and system pressurization, leak checks, actuator functional tests, and propulsion integration. * Drive continuous improvement across the production floor - including tooling, ERP/MES workflows, build documentation, and internal specifications. * Champion a safety-first mindset, especially during hazardous or high-pressure operations.