> Markdown version of [/jobs/ext/4608214-payloads-principal-fluid-systems-engineer](https://www.wearedevelopers.com/jobs/ext/4608214-payloads-principal-fluid-systems-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Payloads - Principal Fluid Systems Engineer - **Company:** KELTIA DESIGN INC - **Location:** Mountain View, CA, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Python (Programming Language), MATLAB, Requirements Management, Systems Integration, Test Scripts, Front End Software Development - **Published:** November 6, 2026 - **Apply:** https://www.careerbuilder.com/job-details/payloads-principal-fluid-systems-engineer-mountain-view-ca--e260bc6a-15bd-4651-b00a-13b91a5c70bf ## About the Role Fluid Systems Engineering, Wheel/Front-End Loader, Requirements Management, Wheel/Front-End Loader, Drug Manufacturing, Drug Development, Fluid Systems Engineering, Component Selection, Thermal Management, Validation Testing, * BS/BEng in Mechanical, Aerospace, Mechatronics, Biomedical, Chemical, or related engineering discipline * 7+ years of experience designing, integrating, testing, and troubleshooting electromechanical hardware * Deep mechanical and fluid systems expertise with breadth in at least two adjacent disciplines such as avionics, software, thermal, optics, test, precision instrumentation, etc. * Track record leading project teams through full-cycle electromechanical space flight hardware development * Extensive experience with valves, pumps, pistons, tubing, manifolds, fittings, seals, filters, sensors, metering hardware, thermal-control hardware, and/or compact fluidic assemblies * Excellent communication skills with customer, executive, and cross-disciplinary technical audiences Preferred Skills and Experience * 3+ years of cross-functional project leadership experience * Prior full-cycle technical leadership of precision fluid-handling hardware for relevant applications * In Space: ECLSS, low-thrust propulsion, astronaut suits, spacecraft thermal control, etc. * On Earth: semiconductor process equipment, biotech process equipment, analytical instruments, medical devices, etc. * Extensive experience planning and executing aerospace environmental testing (vibration, TVAC, EMI/EMC) * Familiarity with microgravity fluid behavior, capillary-driven flows, gas/liquid separation, two-phase flow, cGMP principles, cleanroom practices, or regulated hardware environments ## Description * Define requirements, architecture, and development plans for pharmaceutical manufacturing payloads * Establish fluid system design standards for component selection and qualification, sealing, contamination control, thermal control, and verification/validation * Lead project teams to develop of precision fluid systems incorporating valves, pumps, pistons, manifolds, tubing, fittings, seals, filters, sensors, and thermal control systems * Drive system-level analyses, trade studies, and risk reduction using a variety of tools (hand calcs, Python/MATLAB models, FEA, etc. as needed) * Lead build and test campaigns for prototypes and flight hardware to characterize performance and reliability * Synthesize cross-functional inputs from business development, pharmaceutical science, process engineering, and spacecraft subsystem teams to develop requirements for new pharmaceutical payloads * Develop standards for subsystem requirements, ICDs, verification plans, test reports, and recovery procedures * Represent Varda in technical discussions with internal leadership, external partners, customers, and government stakeholders * Lead continuous improvement and incorporation of lessons learned * Mentor senior and entry-level engineers and shape best practices