Real job — pulled straight from AST SpaceMobile’s careers page · Verified October 28, 2026 · No reposts.
Job description
AST SpaceMobile is hiring a Junior Mechanical Engineer — a full-time, based in Barcelona, Spain role. Apply directly on AST SpaceMobile's careers page below.
Junior Mechanical Engineer - Jig Design and Tooling
Location: Barcelona, Spain
Department: Mechanical Engineering
AST SpaceMobile and our global partners are building the first and only space-based cellular broadband network to be accessible by standard smartphones. Called SpaceMobile, this ultra-powerful network is being designed to provide connectivity at 4G/5G speeds everywhere on the planet – on land, at sea and in flight.
- Develop mechanical support elements including jigs, fixtures, workholding, handling, and test tooling from concept through CAD design, manufacturing drawings, and fabrication.
- Prepare and maintain technical documentation within PDM and PLM systems.
- Perform workshop activities, including basic manual tasks and 3D printing.
- Support the assembly and integration of mechanical assemblies.
- Coordinate with suppliers for machining services and procurement of mechanical components and materials.
- Collaborate with AIT technicians, workshop personnel, and external vendors to support manufacturing and testing activities.
- Bachelor's Degree in Mechanical Engineering or a related technical field required.
- Master's Degree or higher qualification preferred.
- A minimum of 1-2 years of hands-on experience in mechanical design.
- Experience in jig, fixture, or tooling design is highly preferred.
- Experience with space subsystem or payload applications is considered an advantage.
- Experience using Autodesk Inventor or similar CAD software.
- Familiarity with PDM and PLM systems, particularly Autodesk Vault and Autodesk Fusion.
- Knowledge of machining processes and workshop practices.
- Understanding of Geometric Dimensioning and Tolerancing (GD&T).
- Experience with 3D printing technologies.
- Exposure to aerospace, satellite, or high-precision manufacturing environments.
- Strong technical communication skills with the ability to understand and translate stakeholder requirements.
- Ability to work independently and manage tasks autonomously.
- Resourceful, inventive, and proactive problem-solving mindset.
- Strong attention to detail and commitment to quality.
- Careful and responsible when working with sensitive and delicate equipment.
- Eagerness to learn, develop new skills, and grow within the organization.
- Ability to collaborate effectively with cross-functional teams and external suppliers.
- Autodesk Inventor (preferred CAD software)
- Autodesk Vault (PDM)
- Autodesk Fusion (PLM)
- 3D Printing equipment and software
- Engineering drawing and documentation tools
- Ability to work in a workshop and manufacturing environment.
- Ability to work in a standard office environment and use a computer for extended periods.
- Ability to safely handle mechanical parts, tools, fixtures, and delicate hardware.
- Ability to perform hands-on assembly and testing support activities as required.
- Occasionally lift and move engineering materials, tools, and equipment in accordance with safety guidelines.
This job description may not be inclusive to the duties and responsibilities listed. Additional tasks may be assigned to the employee from time to time or the scope of the job may change as needed by business demands.
AST SpaceMobile is an Equal Opportunity, at will Employer; employment is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.
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Frequently asked questions
What skills are required for Junior Mechanical Engineer at AST SpaceMobile?
The required skills for Junior Mechanical Engineer at AST SpaceMobile include: Machining.
What is the seniority level for Junior Mechanical Engineer at AST SpaceMobile?
Junior Mechanical Engineer at AST SpaceMobile is a Entry level position.
How do I apply for Junior Mechanical Engineer at AST SpaceMobile?
You can view the full description and apply for Junior Mechanical Engineer at AST SpaceMobile on EchoJobs: https://echojobs.io/job/ast-spacemobile-junior-mechanical-engineer-jig-design-and-tooling-i9ozs.