JOB DETAILS
CNC Machining and 3D Printing Intern
CompanyIENAI SPACE
LocationLeganés
Work ModeOn Site
PostedOctober 28, 2026
About The Company
Over the next 10 years, a staggering 11000 new satellites will be launched; 90% of these are “Nano-Satellites”: they weigh less than 10Kg, cost under 100k$, and are revolutionising, and democratizing, access to space; most follow the first open-access standard in the space sector: the CubeSat standard.
CubeSats are quickly acquiring new, varied and crucial functionalities: from high-speed communication networks, satellite internet, IoT, and earth observation, to space exploration. However, one last challenge remains a limiting factor: the lack of on-board propulsion.
ienai SPACE, a newly-established company located in Madrid (Spain), aims to be a one-stop-shop for highly efficient ionic-liquid electric propulsion systems and mission analysis for nano-satellites. We will provide propulsion modules following the plug&play philosophy of CubeSats, but deeply customized for each particular platform and mission: from 2U to 12U; from RAAN-spacing to Earth-Moon transits or de-orbiting (aimed at containing the issue of space debris). Our versatile propulsion system ATHENA is designed to be highly scalable in specific impulse and thrust; the technology is based on a novel iteration of electrospray thrusters, which boast some of the highest theoretical efficiencies for electric propulsion technologies in the low power range. In combination with its reduced form factor, this means less propellant on-board, making this technology attractive in constrained volumes.
Once the custom operational point of the thruster is selected, ienai SPACE uses a proprietary software for design and optimization of low-thrust trajectories, providing support to control activities during the mission, allowing these satellites to reach further, for longer.
About the Role
How will you contribute to IENAI SPACE?
As a CNC Machining and 3D Printing Intern, you will work on manufacturing projects and be involved in all stages of the process, from part design, machine set-up and operation, to quality control and design optimisation.
Your main responsibilities will include:
- CNC Machining: Operating and maintaining CNC machines to produce precision parts.
- 3D Printing: Set up and use 3D printers (FDM, SLA, etc.) to produce prototypes and functional parts.
- Interpretation of blueprints: Reading technical drawings and CAD files to produce parts.
- Project collaboration: Work with engineers and designers to optimise manufacturing processes.
- Laboratory management: Organising the work area, complying with safety regulations and managing stock.
What is your department like?
What will make you succeed?
Education:
- Students of FP in Mechatronics, Mechanical Manufacturing, or Production Programming in Mechanical Manufacturing, or similar fields.
- Students of Mechanical Engineering, Manufacturing, Industrial Design, or related fields.
- Practical experience in CNC machining or 3D printing will be highly valued.
Technical skills:
- Experience with CNC machines (milling machines, lathes) and 3D printers (FDM, SLA, SLS).
- Ability to work with manual machining tools (drills, saws, etc.).
- Basic knowledge of welding is a plus.
- Familiarity with CAD software (Fusion 360, SolidWorks, AutoCAD) is a plus.
Soft skills:
- Attention to detail and commitment to quality.
- Ability to interpret technical drawings and diagrams.
- Problem-solving and troubleshooting skills.
- Organizational and time management skills.
- Teamwork and effective communication.
- Knowledge of workshop safety regulations.
What do we offer?
- Paid internship
- Flexible working hours, allowing you to manage your schedule for better work-life balance.
- A dynamic environment and a motivated team committed to a unique and fast-growing project.
- Autonomy and responsibility: your contributions will directly shape our technology and success.
What will your recruitment process be like?
About us
IENAI SPACE is a fast-growing startup based in Madrid, developing an end-to-end ecosystem of in-space mobility products, including propulsion systems and engineering SaaS. We are an innovative company in the "New Space" sector, composed of a dynamic and multidisciplinary team of engineers, PhDs, and developers aiming to revolutionize space mobility and propulsion for small satellites. We recently kickstarted our commercial phase with our first product: 360™, a Mission and Space Mobility analysis SaaS.
Our mission is to build tailored, end-to-end space mobility products and services for the next generation of small satellites empowering a sustainable new space economy.
Key Skills
CNC machining3D printingBlueprint interpretationCAD softwareFusion 360SolidWorksAutoCADMechanical manufacturingQuality controlWorkshop safetyProblem-solvingTime managementTeamworkCommunicationManual machiningWelding
Categories
EngineeringManufacturingTechnologyScience & Research
Benefits
Paid internshipFlexible working hours
Job Information
📋Core Responsibilities
The intern will operate and maintain CNC machines and 3D printers to produce precision parts and prototypes. They will also collaborate with engineers on design optimization and manage laboratory stock and safety compliance.
📋Job Type
intern / student
📊Experience Level
0-2
💼Company Size
34
📊Visa Sponsorship
No
💼Language
English
🏢Working Hours
40 hours
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