Fluidics Systems Engineer

Fluidics Systems Engineer

iO Associates are currently partnered with a company who are seeking a Fluidics Systems Engineer to join their growing team within the space sector.

Location: Madrid, Spain
Salary: €30,000 – €40,000 per annum
Working pattern: Full-time
Working environment: Hybrid
Working Language: English

This organisation is developing advanced propulsion systems for space applications and is looking for a hands-on engineer to take ownership of a critical fluidics subsystem. This role focuses on precision engineering in challenging environments, working with liquid propellants and vacuum systems to support real spaceflight applications.

The role will involve:

• Owning the development of a propellant management subsystem, driving it from design refinement through to production readiness
• Leading mechanical and functional improvements, with a focus on reliability and scalability
• Designing and qualifying in-vacuum propellant filling processes, including contamination control and calibration procedures
• Characterising system performance, including flow delivery, pressure stability, gas behaviour and fill accuracy
• Creating and maintaining detailed test procedures, assembly documentation and qualification reports
• Collaborating closely with propulsion, electronics and testing teams during integration and validation campaigns
• Supporting supplier engagement and contributing to make-vs-buy decisions
• Contributing to vacuum chamber redesign and development activities

Key requirements:

• Background in vacuum systems, precision fluidics, analytical instrumentation, or a related engineering discipline (industry or research)
• 2-4 years hands-on engineering experience, ideally in a lab, R&D or production environment
• Experience working with sensitive or reactive liquids (e.g. hygroscopic, conductive, or corrosive fluids)
• Familiarity with vacuum systems, including pumping equipment, low-pressure measurement, leak detection and outgassing behaviour
• Experience designing or assembling sealed mechanical systems (e.g. fittings, seals, polymer-to-metal interfaces)
• Broad engineering fundamentals with a solid understanding of physics principles
• Comfortable working in a small, fast-moving team with evolving responsibilities
• Experience with mechanical CAD tools (e.g. Fusion 360, SolidWorks or similar)
• Exposure to areas such as ionic liquids, electrochemical systems, or space environmental standards (e.g. thermal vacuum, outgassing) is desirable
• Familiarity with pressure systems, pneumatic testing, microfluidics, MEMS, or similar technologies

This is a highly practical, hands-on role offering the opportunity to take real ownership of a critical subsystem and directly influence the development of next-generation propulsion technology.

Ready to propel your career to the next level? Apply today with your up-to-date CV and let’s get started!