Arkadia, established in 2020, is a pioneering force in the space industry. We have a clear vision: to make space exploration sustainable, accessible, and innovative. We are an in-space propulsion company, developing and commercializing the most performing chemical systems using green propellants, the real alternative to traditional storable propulsion.

Our headquarters are located in Castellon de la Plana on the Costa Azahar. We operate a 100% privately managed orbital engine Test Center at Castellón Airport, the first of its kind in Europe. This facility provides agility, flexibility and speed for tailored, rapid propulsion developments and for testing of engine prototypes and products.

At Arkadia, we trust in every member of our team as we specialize in developing cutting-edge propulsion systems. Our company culture is built on collaboration, innovation, and personal growth. We offer a friendly and stimulating work environment where you can thrive. We value work-life balance, which is reflected in adaptable schedules and ongoing professional development opportunities.

About the Position

As a Test Engineer at Arkadia,you will playa central roleinvalidatingour propulsion products,from development prototypes to commercial flightengines and systems.

You will support the development team during early-stage testing and technology maturation,operating with autonomythe testing activities associated with commercial engines and propulsion systems (acceptance,qualificationand recurring production tests).

Thisrole is a key partof ourtesting andhardware validationactivities.



You will work hands-on with propulsioncomponents,systems, testbenchesand ground support equipmentat our TestCenter, ensuring that everyelementthat leaves our facilities has been rigorously verified.

As Arkadia expands its product range and increases production, this role will take on greater responsibility in planning,coordinationand improvement oftesting activities.

What you'll be doing

- Support development test campaignsfrom early prototypes toqualification units
- Executeacceptance testing ofalready qualifiedcomponents (thrusters, tanks, etc.) and completepropulsion systems.
- Testtypes includehot-firing,pressure testing (e.g.,leak, proof, burst)and environmental (e.g.,vibration, thermalvacuum)
- Prepare and review test plans,proceduresand test readiness documentation
- Analyze test data and produce technical reports
- Coordinate test execution with development,systemsandA&Iteams;
- Investigate anomalies and contribute to root cause analysis
- Ensure compliance with internal safety standards and test facility procedures
- Contribute to the evolution and optimization of test benches and GSE
- Improve documentation,repeatabilityand efficiency of recurring test activities

What you'll need

- BSc. in Aerospace Engineering,



Mechanical Engineering or similar
- Experience executing structured test campaigns (development and/or qualification)

Strong understanding of:

- Pressurized fluid systems
- Hands-on experience working with hardware
- Experience writing test documentation and technical reports
- Ability to troubleshoot during live test operations in a structured and safe manner
- Organized, methodical and rigorous mindset
- Strong ownership attitude and ability to coordinate across teams
- Comfortable in fast-paced, hardware-driven environments
- Advanced English (spoken and written)

Nice to have

- Experience with monopropellant or bipropellant propulsion systems
- Experience supporting production or recurrentacceptance testing
- Experience coordinating testing at external facilities or suppliers
- Experience designing ormodifyingtest benches or ground support equipment
- Familiarity with ECSS standards
- Basic knowledge of control and automation tools(LabVIEW)
- Experience with environmental testing (e.g.,vibration, shock, thermal vacuum
- Spanish is a plus

Why Arkadia?

Because here you will:

- Work alongside a passionate and highly skilled space team
- Havereal technicalownership and visibility across disciplines
- Stay close to hardware and test campaigns
- Enjoy flexibility and a collaborative atmosphere
- Receive onboarding and accommodation support if relocating
- Benefit from the facilities and ecosystem of the university campus where we are based

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📌 Test Engineer (Castellón de la Plana)
🏢 ARKADIA SPACE
📍 Castellón de la Plana