Mechanical Engineer, Hydraulic & Fluids System
Pebble, Fremont, CA, United States
About the Role
Pebble is looking for a new graduate Mechanical Engineer, Hydraulic and Fluids System to join our Platform Team. Ownership is one of our core values, and from day one you’ll own the design and development of real fluid system components on our platform — with senior engineers to mentor you, review your work, and help you grow. You’ll collaborate with cross‑functional teams to take your designs from concept through validation and into production.
The ideal candidate is eager to take on ownership, has hands‑on exposure to CAD tools (Catia and/or SolidWorks) through coursework, internships, or student projects, and is excited about hydraulic and fluid systems — fresh and waste water, pumps, valves, fittings, water heating, HVAC and cooling lines, coolants and refrigerants, and their integration with chassis, body, and electrical systems.
Responsibilities
Design and develop hydraulic and fluid system components, with guidance and review from senior engineers
Collaborate with cross‑functional teams across mechanical, electrical, thermal, manufacturing, and test
Meet with suppliers and partner with our procurement team to help deliver initial parts, track quality, and resolve issues as they come up
Conduct feasibility studies and analyze data to optimize your designs
Create detailed engineering CAD models, drawings, plumbing schematics, and documentation
Perform and support testing and validation of fluid systems, including leak, pressure, flow, and durability testing
Troubleshoot and resolve hydraulic and fluid system issues as they arise
Stay curious — track industry trends and advancements in fluid system engineering
Provide technical support to manufacturing and production teams
Support the team in meeting regulatory, sanitation, and safety standards (e.g., NSF, plumbing codes, RVIA where applicable)
Contribute to continuous improvement initiatives
Areas You’ll Learn and Contribute To
Fresh water systems (tanks, pumps, distribution, filtration)
Gray and black water (waste) systems
Water heating and delivery
Plumbing fixtures (sinks, showers, toilets)
Pumps, valves, fittings, and hose/tubing routing
HVAC and cooling lines, coolants, and refrigerants
Thermal and fluid management interfaces with the battery and HVAC systems
Integration between hydraulic/fluid systems and chassis, body, and electrical systems
Flow, pressure, and thermal analysis and simulations
Leak and durability validation
Requirements
Bachelor’s or Master’s degree in Mechanical Engineering or a related field (recent graduate or graduating within the next 6 months)
0–2 years of experience; internships, co‑ops, and research assistantships count
Hands‑on experience with a parametric CAD tool (SolidWorks, Fusion 360, Creo, NX, or similar) through coursework, projects, or internships; exposure to Catia is a plus
Strong fundamentals in mechanical engineering (fluid mechanics, thermodynamics, heat transfer, mechanics of materials, machine design)
Strong analytical and problem‑solving skills
Excellent communication and collaboration abilities
Ability to learn quickly and thrive in a fast‑paced environment
Attention to detail and accuracy
Ability to manage multiple priorities and meet deadlines
Ownership mindset — you take responsibility for your work end‑to‑end
Nice to Have
Internship, co‑op, or research experience in the automotive, RV, marine, aerospace, HVAC, or broader fluid systems industry
Hands‑on experience through student engineering teams where fluid or thermal systems are relevant — FSAE, Baja SAE, Formula Electric (cooling loops), Solar Car (thermal management), Chem‑E Car, rocketry/propulsion teams, or similar
Coursework or projects in fluid mechanics, thermal systems, piping/hydraulic design, or HVAC
Experience with CFD or thermal/fluid simulation tools such as ANSYS Fluent, SolidWorks Flow Simulation, or SimScale; exposure to Star‑CCM or OpenFOAM is a plus
Familiarity with GD&T or drafting standards (ASME Y14.5)
Hands‑on fabrication skills (machining, welding, tube bending, 3D printing)
Exposure to piping or plumbing codes/standards (e.g., ASME, UPC, IPC, RVIA)
Personal projects involving fluid systems, fabrication, or vehicles
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Pebble is looking for a new graduate Mechanical Engineer, Hydraulic and Fluids System to join our Platform Team. Ownership is one of our core values, and from day one you’ll own the design and development of real fluid system components on our platform — with senior engineers to mentor you, review your work, and help you grow. You’ll collaborate with cross‑functional teams to take your designs from concept through validation and into production.
The ideal candidate is eager to take on ownership, has hands‑on exposure to CAD tools (Catia and/or SolidWorks) through coursework, internships, or student projects, and is excited about hydraulic and fluid systems — fresh and waste water, pumps, valves, fittings, water heating, HVAC and cooling lines, coolants and refrigerants, and their integration with chassis, body, and electrical systems.
Responsibilities
Design and develop hydraulic and fluid system components, with guidance and review from senior engineers
Collaborate with cross‑functional teams across mechanical, electrical, thermal, manufacturing, and test
Meet with suppliers and partner with our procurement team to help deliver initial parts, track quality, and resolve issues as they come up
Conduct feasibility studies and analyze data to optimize your designs
Create detailed engineering CAD models, drawings, plumbing schematics, and documentation
Perform and support testing and validation of fluid systems, including leak, pressure, flow, and durability testing
Troubleshoot and resolve hydraulic and fluid system issues as they arise
Stay curious — track industry trends and advancements in fluid system engineering
Provide technical support to manufacturing and production teams
Support the team in meeting regulatory, sanitation, and safety standards (e.g., NSF, plumbing codes, RVIA where applicable)
Contribute to continuous improvement initiatives
Areas You’ll Learn and Contribute To
Fresh water systems (tanks, pumps, distribution, filtration)
Gray and black water (waste) systems
Water heating and delivery
Plumbing fixtures (sinks, showers, toilets)
Pumps, valves, fittings, and hose/tubing routing
HVAC and cooling lines, coolants, and refrigerants
Thermal and fluid management interfaces with the battery and HVAC systems
Integration between hydraulic/fluid systems and chassis, body, and electrical systems
Flow, pressure, and thermal analysis and simulations
Leak and durability validation
Requirements
Bachelor’s or Master’s degree in Mechanical Engineering or a related field (recent graduate or graduating within the next 6 months)
0–2 years of experience; internships, co‑ops, and research assistantships count
Hands‑on experience with a parametric CAD tool (SolidWorks, Fusion 360, Creo, NX, or similar) through coursework, projects, or internships; exposure to Catia is a plus
Strong fundamentals in mechanical engineering (fluid mechanics, thermodynamics, heat transfer, mechanics of materials, machine design)
Strong analytical and problem‑solving skills
Excellent communication and collaboration abilities
Ability to learn quickly and thrive in a fast‑paced environment
Attention to detail and accuracy
Ability to manage multiple priorities and meet deadlines
Ownership mindset — you take responsibility for your work end‑to‑end
Nice to Have
Internship, co‑op, or research experience in the automotive, RV, marine, aerospace, HVAC, or broader fluid systems industry
Hands‑on experience through student engineering teams where fluid or thermal systems are relevant — FSAE, Baja SAE, Formula Electric (cooling loops), Solar Car (thermal management), Chem‑E Car, rocketry/propulsion teams, or similar
Coursework or projects in fluid mechanics, thermal systems, piping/hydraulic design, or HVAC
Experience with CFD or thermal/fluid simulation tools such as ANSYS Fluent, SolidWorks Flow Simulation, or SimScale; exposure to Star‑CCM or OpenFOAM is a plus
Familiarity with GD&T or drafting standards (ASME Y14.5)
Hands‑on fabrication skills (machining, welding, tube bending, 3D printing)
Exposure to piping or plumbing codes/standards (e.g., ASME, UPC, IPC, RVIA)
Personal projects involving fluid systems, fabrication, or vehicles
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