Senior Staff Mechanical Engineer Fluid Systems jobs in San Jose – Browse 781 openings on RoboApply Jobs

Senior Staff Mechanical Engineer Fluid Systems jobs in San Jose

Open roles matching “Senior Staff Mechanical Engineer Fluid Systems” with location signals for San Jose. 781 active listings on RoboApply Jobs.

781 jobs found

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Antora logo
Full-time|On-site|San Jose, CA

Join Antora as a Senior / Staff Mechanical Engineer specializing in Fluid Systems, where you will play a pivotal role in the design and development of innovative fluid management solutions. Your expertise will contribute to cutting-edge projects aimed at enhancing performance and efficiency in various applications. Collaborate with a talented team of enginee…

Mar 27, 2026
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Archer Aviation Inc. logo
Senior Staff Systems Engineer

Archer Aviation Inc.

Full-time|$182.5K/yr - $228K/yr|On-site|San Jose, California, United States

Archer Aviation Inc., situated in the heart of San Jose, California, is at the forefront of aerospace innovation, dedicated to constructing an all-electric vertical takeoff and landing aircraft. Our mission is to revolutionize sustainable air mobility by designing, manufacturing, and operating aircraft capable of transporting four passengers with minimal noise pollution.We aspire to achieve remarkable advancements while tackling complex challenges. We firmly believe that a diverse workforce enhances our intelligence, drives insightful solutions, and propels us toward collective success. Our commitment is to foster an equitable and inclusive work environment that honors our differences and uplifts every member of our team.The RoleIn the role of Senior Staff Systems Engineer within the Air Vehicle group, you will focus on Mechanical Systems. You will engage with various systems including Landing Gear, Cabin, Closures, Environmental Control, Airframe, and Wiring Systems, taking on the responsibility as the Systems Engineer for one of these areas. This position allows you to bridge the gap between high-level aircraft requirements and detailed component design, ensuring seamless interfaces. Your confidence and eagerness to collaborate with multiple disciplines across the organization will be paramount to your success.What you’ll do:Collaborate with diverse engineering teams to design high-reliability, safety-critical systems for aircraft.Lead the preparation of reports to validate system readiness for key milestone reviews.Serve as the primary contact for system-level documentation and reporting.Drive change management initiatives within a complex product structure.Lead efforts to:Conduct operational and functional analyses,Define and decompose system requirements with traceability through overall system architecture,Establish and manage technical/programmatic performance metrics (cost, weight, performance objectives),Ensure full compliance with safety regulations.Collaborate with technical disciplines to develop verification plans, support verification/test planning, and conduct assessments to demonstrate compliance with system requirements.

Feb 5, 2026
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Electric Hydrogen logo
Full-time|$190K/yr - $225K/yr|On-site|San Jose, California, United States

Electric Hydrogen is dedicated to revolutionizing the energy landscape by producing green hydrogen through renewable electrolysis, aiming to decarbonize our world! Our talented team is our greatest asset, enabling us to deliver hydrogen at prices that compete with fossil fuels for heavy industries.We are currently seeking a Staff Mechanical Engineer - Power Systems to join our innovative team in San Jose, CA. In this role, you will spearhead the development of cutting-edge power electronics products aimed at generating green hydrogen, guiding projects from prototype through to production.

Feb 27, 2026
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Archer Aviation logo
Full-time|On-site|San Jose, California, United States

Archer Aviation is an innovative aerospace company located in San Jose, California. We are on a mission to revolutionize sustainable air mobility through the design and manufacture of an all-electric vertical takeoff and landing (eVTOL) aircraft capable of carrying four passengers with minimal noise emissions.At Archer, we are driven by high aspirations and challenging problems. We believe that a diverse workforce enhances our intelligence, fosters better insights, and ultimately contributes to our collective success. We are committed to creating an equitable and inclusive environment that values our differences and celebrates every member of our team.About the RoleWe are looking for a skilled Mechanical Systems Engineer – Actuators to take the lead in designing, integrating, and validating high-performance electromechanical actuators for our prototype aircraft. This position necessitates a profound understanding of actuator system architecture, requirements development, and performance analysis, alongside multidisciplinary collaboration across electrical, controls, and thermal domains. As part of our prototype engineering team, you will be instrumental in laying the groundwork for our production engineering efforts.What You’ll DoDesignOversee the design and development of high-performance, flight-critical electromechanical actuation systems from initial concept to flight testing.Collaborate with suppliers to determine make vs. buy strategies.Conduct trade studies to enhance system architecture and reduce mass.Work alongside suppliers and peer design leads in actuator control, flight controls, GNC, power systems, airframe, and software to create an optimized integrated system for the aircraft.Develop and evaluate CAD models, drawings, and engineering specifications.Create and maintain actuator-system specifications and detailed component requirements.Establish and sustain system-level models to validate actuator performance.Analysis & ValidationDesign test plans and develop test benches for component development and validation.Analyze test results and implement design enhancements based on findings.Act as the primary technical authority for diagnosing and resolving critical design and development challenges.LeadershipGuide the team in best practices and innovative approaches to actuator systems engineering.

Feb 10, 2026
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Archer Aviation logo
Full-time|On-site|San Jose, California, United States

Archer Aviation is a pioneering aerospace company headquartered in San Jose, California, focused on developing an all-electric vertical takeoff and landing (eVTOL) aircraft. Our mission is to revolutionize air mobility by providing sustainable transportation solutions that are not only efficient but also environmentally friendly, allowing for quiet and smooth journeys with a capacity for four passengers.We are committed to pushing the boundaries of technology and innovation, and we recognize that a diverse workforce enhances our problem-solving capabilities and fosters greater creativity. At Archer, we strive to build an inclusive workplace that values each individual's unique contributions and perspectives, empowering our team to achieve collective success.What You'll Do:Design and develop inlet and exhaust ducting systems for turboshaft engines and advanced thermal management systems on aircraft.Collaborate with aerothermal analysts to refine duct designs for optimal performance, pressure drop, and thermal efficiency.Take ownership of the design process from initial concept through to production, including requirements gathering, 3D CAD modeling, detailed drawings, bill of materials (BOM), and design verification.Engage with suppliers to oversee fabrication processes, ensuring adherence to design specifications and troubleshooting manufacturing challenges.Select and integrate commercial off-the-shelf (COTS) components such as bellows, flex joints, seals, and clamps as needed.Develop and execute verification testing strategies for ducting systems, supporting thorough qualification testing including pressure, temperature, and vibration assessments.Establish and nurture supplier relationships to lead procurement efforts effectively.Collaborate with Systems Engineering and aerothermal analysts to document and validate design requirements thoroughly.

Feb 11, 2026
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Extreme Networks, Inc. logo
Staff Software Systems Engineer

Extreme Networks, Inc.

Full-time|On-site|San Jose, California, United States

Join a thriving community of over 50,000 customers worldwide who trust our innovative, cloud-driven networking solutions. At Extreme Networks, we empower organizations to accelerate their digital transformation and achieve remarkable progress through our award-winning services and unwavering support. With consistent double-digit growth each year, we are uniquely positioned to deliver scalable outcomes that transform businesses.At our core, we value inclusion and diversity, creating a workplace where every employee can flourish because of their unique perspectives and experiences. We believe that our differences are our strength, and we are dedicated to fostering an environment that supports everyone’s success.Now is the perfect time to become part of something significant with Extreme! As a global leader in networking, discover the exceptional opportunities that await you on the Extreme team.

Nov 24, 2025
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Antora logo
Full-time|$129K/yr - $210K/yr|On-site|San Jose, CA

Join Antora's dynamic Product Development Team as a Senior or Staff Mechanical Engineer, where you will play a pivotal role in the design, analysis, and validation of innovative subsystems that power our cutting-edge thermal battery technology. You will be at the forefront of accelerating the deployment of a revolutionary long-duration energy storage solution, contributing directly to the decarbonization of industrial operations. This role demands a collaborative spirit as you engage with cross-functional teams to scope, design, and iterate mechanical systems throughout all phases, from concept to production. Your expertise will help shape the processes and standards that drive our mission forward.

Jan 21, 2026
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Archer Aviation logo
Full-time|$144K/yr - $180K/yr|On-site|San Jose, California, United States

About Archer Aviation Archer Aviation is developing all-electric vertical takeoff and landing aircraft to advance sustainable air mobility. The company’s aircraft is designed to carry four passengers, with a focus on reducing noise and supporting environmental goals. Archer values a diverse and inclusive workplace, encouraging collaboration and recognizing the unique contributions of each team member. Role Overview The Mechanical Design Engineer - Turboshaft Systems will support the design and development of a new Turbogenerator system. This role is based in San Jose, California. Main Responsibilities Create detailed models of components and large assemblies for the Turbogenerator using Siemens NX. Develop master geometry and skeleton models. Design components with manufacturability and assembly in mind. Produce accurate 2D manufacturing drawings. Apply geometric dimensioning and tolerancing standards. Oversee the design process, working closely with manufacturing and testing teams. Maintain bills of materials, test protocols, and design guidelines. Present design concepts clearly to stakeholders. Work collaboratively with supply chain, quality assurance, manufacturing, and engineering teams.

Apr 17, 2026
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Archer Aviation logo
Full-time|$152.1K/yr - $190.1K/yr|On-site|San Jose, California, United States

Archer Aviation is a pioneering aerospace firm based in San Jose, California, focused on designing and manufacturing an all-electric vertical takeoff and landing aircraft. Our mission is to propel the future of sustainable air mobility, creating an aircraft capable of carrying four passengers while minimizing noise pollution.We aim high, tackling complex challenges, and we believe that a diverse workforce enhances our intelligence, fosters better insights, and ultimately leads to collective success. We are committed to fostering an equitable and inclusive workplace that values our differences and celebrates every team member.We are looking for a highly skilled Staff IT Systems Engineer to support our Systems Engineering, Endpoint Engineering, and Digital Workplace initiatives. In this role, you will be responsible for delivering an exceptional technology experience for our employees, ensuring operational excellence in our core IT services, and driving the advancement of our digital workplace strategy as we grow.

Mar 24, 2026
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Antora logo
Full-time|$129K/yr - $170K/yr|On-site|San Jose

At Antora, we are revolutionizing industrial energy solutions by developing advanced thermal batteries designed to deliver continuous, low-cost energy for industrial operations. Proudly manufactured in the U.S., our modular thermal batteries provide dependable heat and power, empowering industrial facilities of any size to achieve predictable and profitable decarbonization. We are on a mission to electrify global industry while supporting American manufacturing, reducing energy costs for consumers, and enhancing the competitiveness of U.S. industry.We are expanding our team with individuals who prioritize collaboration and purpose, cherish connection through laughter and joy, and approach their work with humility and openness. Our commitment to fostering a diverse, passionate, and innovative team is unwavering as we strive for a future where every industrial facility worldwide is powered by abundant, clean, low-cost energy.Position SummaryWe are on the lookout for a Senior / Staff Systems Engineer in San Jose—an enthusiastic, inquisitive, and dedicated engineer to join our Technology Development team. Your expertise will contribute to delivering zero-carbon industrial heat and power through our innovative solid-state thermal battery solutions.This role is deeply collaborative and central to system innovation. You will engage across various disciplines to influence the architecture and operational philosophy of Antora’s future offerings. Leveraging first-principles modeling, data analytics, and real-world performance insights, you will accelerate our mission to decarbonize the industrial sector at scale.

Jan 21, 2026
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Antora logo
Full-time|$104K/yr - $155K/yr|On-site|San Jose, CA

Antora is on a mission to revolutionize industrial energy solutions by designing and implementing cutting-edge thermal batteries that provide reliable, low-cost energy for industrial operations. We are looking for a dynamic and driven Senior Mechanical/Process Engineer to join our San Jose, California team. In this pivotal role, you will be instrumental in optimizing our balance of plant (BOP) systems, focusing on cost efficiency and performance enhancements. Your expertise will be integral in developing and refining cost models based on comprehensive technical and commercial data, guiding the design and evolution of high-performance plant processes and systems. You will also take charge of scoping, defining, and designing BOP systems for our commercial thermal energy storage projects. As a key player in our rapidly growing cross-functional organization, your contributions will directly support the deployment and scaling of innovative long-duration energy storage technologies.

Dec 30, 2025
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SK hynix America logo
Full-time|$160K/yr - $180K/yr|On-site|San Jose, CA

Job Title: Senior Staff System Software EngineerOffice Location: San Jose, CAJob Type: Full-TimeWork Model: OnsiteJoin SK hynix America, a leader in semiconductor innovation, where we create advanced memory solutions that empower devices from smartphones to expansive data centers. Our expertise in DRAM and NAND flash technologies positions us at the forefront of mobile technology evolution and cloud computing advancements.We are seeking creative and forward-thinking individuals to contribute to our mission of shaping the future of technology. At SK hynix America, you will engage with a team dedicated to pioneering groundbreaking memory solutions while upholding a commitment to sustainability. We are not just adapting to technological change; we are spearheading it with significant investments in artificial intelligence, machine learning, and environmentally friendly practices. Be a part of our journey to redefine the future of computing through next-generation memory solutions.Job Summary:Lead the charge in maintaining SK hynix's leadership in emerging technologies, utilizing your expertise in computer systems and software technologies, including open-source tools to showcase benefits and use cases.Design, develop, and optimize next-generation memory solutions and system software tailored for energy-efficient AI computing platforms.Collaborate closely with hardware and software teams to ensure the seamless integration and optimal performance of our next-generation AI memory solutions.Responsibilities:Serve as an individual technical contributor within the research team focused on next-generation storage/memory systems.Design and develop prototypes of next-generation memory solutions and corresponding system software for energy-efficient applications.

Mar 19, 2026
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FloQast logo
Full-time|On-site|San Jose, California

Join FloQast as a Senior Staff Engineer, Data, and become an integral part of our technical leadership team. In this role, you will spearhead the design, implementation, and continuous enhancement of FloQast’s core data platform. You will set the standards for data ingestion, governance, storage, processing, and access that empower our product and analytics systems. Your contributions will establish a robust, scalable, and secure data foundation that enables our engineering, product, and business operations teams to thrive.Note: Visa sponsorship is not available at this time.

Jun 6, 2025
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Mashgin logo
Full-time|Hybrid|San Jose, CA

About MashginMashgin is revolutionizing the checkout experience for more than 40 million users globally. Our innovative kiosks allow customers to simply place their items, while our advanced AI processes their entire order in under one second—making long lines a thing of the past.Our technology facilitates over 1 billion transactions at popular venues, including more than half of the professional sports teams in the U.S., 4,000 convenience stores, major airports, and universities.We are not only developing state-of-the-art AI but are also driving tangible real-world impact and creating unforgettable experiences. As a well-funded Series B company, we proudly stand out as one of the few AI startups that have already achieved profitability.The secret to our success? A culture rooted in extreme ownership, autonomy, and an unwavering focus on customer satisfaction. At Mashgin, we are dedicated to building something extraordinary by challenging the norms. We prioritize what truly matters: crafting an exceptional product that leaves people amazed. Our focus is on long-term solutions rather than short-term gains. If you excel in a culture of uncompromising excellence and desire to see your contributions make a significant impact, you belong with us.Position SummaryMashgin is on the lookout for a Senior Mechanical Product Design Engineer to enhance our hardware engineering team. In this pivotal role, you will be instrumental in developing the next generation of Mashgin kiosks, navigating the journey from concept to mass production in a dynamic, cross-functional setting.This position is hybrid, requiring you to be onsite in San Jose, CA at least 2 days per week.

Feb 19, 2026
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Archer Aviation Inc. logo
Full-time|$140K/yr - $195K/yr|On-site|San Jose, California, United States

Join Archer Aviation, a pioneering aerospace firm located in San Jose, California, dedicated to revolutionizing air mobility with our all-electric vertical takeoff and landing aircraft. Our mission is to promote sustainable air travel while ensuring minimal noise pollution, as our aircraft is designed to safely transport four passengers.We are committed to solving complex challenges and fostering a diverse workplace that fuels innovation and success. Our inclusive environment values differences and supports every team member in their journey towards excellence.As a Senior Propulsion Electrical Systems Engineer, you will lead the lifecycle of Airborne Electronic Hardware (AEH) systems for our electric propulsion units (EPU). This pivotal role connects intricate power electronics design with aircraft certification, encompassing responsibilities like defining requirements, overseeing DO-254 compliance, and conducting thorough verification and validation (V&V) campaigns for high-voltage inverters and motor control hardware. Your contributions will ensure our electric engines adhere to rigorous safety standards and environmental resilience necessary for Part 33/Part 23 certification.

Feb 17, 2026
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archer56 logo
Full-time|On-site|San Jose, California, United States

Role overview archer56 seeks a Staff Finance Systems Analyst based in San Jose, California. This position centers on maintaining and improving financial systems that underpin the company’s business objectives. What you will do Collaborate with teams across the organization to review financial data and processes Identify areas for improvement and implement updates to financial systems Monitor the accuracy and reliability of financial information Provide insights that support business decision-making Impact This role plays a key part in shaping how archer56 manages and uses financial data. The work directly supports process improvements and helps leaders make informed choices.

Apr 20, 2026
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Etched logo
Full-time|On-site|San Jose

Are you a detail-oriented Mechanical Engineer with a passion for optimizing designs for manufacturability? Join our dynamic team at Etched, where you will play a key role in enhancing our product development process. In this position, you will collaborate with cross-functional teams to ensure our designs meet manufacturability standards, ultimately driving efficiency and quality in our operations.

Mar 4, 2026
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FloQast logo
Full-time|Hybrid|San Jose, California

Location: San Jose or Los Angeles, CA (Hybrid)At FloQast, we are on a mission to revolutionize the way accounting teams function by leveraging AI-driven workflows. Our platform, recognized and trusted by thousands of companies worldwide, serves as a robust operating system for accounting, simplifying complex financial processes into quick, dependable, and scalable systems.We are seeking a Senior Staff Software Engineer who is not just a software builder, but a platform architect who accelerates team performance and catalyzes significant innovations.This pivotal role involves making architectural choices that will shape the entire FloQast application ecosystem, significantly enhancing innovation across our product suite.

Jan 28, 2026
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Archer Aviation logo
Full-time|On-site|San Jose, California, United States

Archer Aviation is a pioneering aerospace company located in San Jose, California. We are on a mission to revolutionize sustainable air mobility by developing an all-electric vertical takeoff and landing (eVTOL) aircraft. Our innovative design prioritizes not only efficiency but also minimal noise pollution, enabling eco-friendly transportation solutions.At Archer, we value diversity and believe that a varied workforce fosters creativity and enhances problem-solving. We are committed to creating an inclusive environment that celebrates our differences and empowers every team member to contribute to our shared success.We are seeking a skilled Senior Test Engineer to join our Propulsion Team. This pivotal role focuses on the verification and testing of Archer's proprietary Propulsion Tilt-rotor system, which integrates with electric engines and various electric actuation subsystems, including both low and high-voltage power distribution systems. The ideal candidate will have substantial experience in executing complex test campaigns at both the component and integrated system levels.

Apr 2, 2026
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Archer Aerospace logo
Full-time|$140K/yr - $160K/yr|On-site|San Jose, California, United States

Archer Aerospace is building the future of sustainable aviation in San Jose, California. The team is developing an all-electric vertical takeoff and landing (eVTOL) aircraft designed to move four passengers quietly and efficiently, aiming to reshape air mobility with minimal environmental impact. The company values excellence, inclusion, and diversity. Team members are supported and differences are embraced to create an equitable workplace where everyone can succeed. Role Overview The Senior Systems Engineer - Fly By Wire (FBW) will help define, validate, and verify system requirements for Archer’s flight control systems. This role works closely with suppliers to ensure requirements are properly communicated and validated, focusing on flight-critical systems that interact with pilots and other major aircraft components. The position supports FAA compliance and certification efforts for the Archer Midnight eVTOL aircraft. Key Responsibilities Manage system-level requirements and oversee validation and verification activities according to ARP-4754A-based processes. Collaborate with other Systems Engineers to ensure the integrated system meets specifications and is tuned for performance. Support suppliers in developing lower-level requirement sets, working with technical leads and subject matter experts. Participate in integration testing, troubleshooting, and problem-solving across multiple disciplines. Assist in testing at both equipment and aircraft levels, including work at Archer facilities and during flight tests. Help prepare compliance documentation, such as test procedures and reports, to support validation, verification, and certification. Work with cross-functional teams, suppliers, and testing labs to move projects forward.

Apr 15, 2026

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