Mechanical Engineer CAD

AST SpaceMobile · Barcelona, Spain

Mechanical Engineering AST - Barcelona Posted May 6, 2026

AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today’s five billion mobile subscribers and finally bring broadband to the billions who remain unconnected.

Position Overview

We are seeking a talented Junior Mechanical Engineer to work in our satellite mechanical subsystem & payload, contributing to the mechanical design, analysis, specification, testing, and validation.

Key Responsibilities:

• Mechanical design and modelling of mechanical subsystems and payload. Preparation of preliminary design with layouts, sketches, testing requirements, materials, processes, and tools, define mechanical interfaces with other mechanical subsystems.
• Develop and maintain mechanical design documentation, manufacturing drawings, interface control drawings, test procedures and tooling (vibration, shock, TVAC, assembly).
• Technical Support to AIT activities including fabrication, assembly, integration, and tests.
• Responsible for the design and capability of the system design to meet the technical requirements.
• Support in structural and thermal decisions and engineering trade-offs to find the best conceptual architectures and design.

Qualifications

Education:

Bachelor's degree in Mechanical Engineering or related technical field. Higher degree is preferred.

Experience:

A minimum of 2 years of hands-on experience in mechanical design.

Preferred Qualifications:

• Mechanical space subsystems and payload and/or other equivalent applications is a plus.
• Experience using PDM and PLM software is a plus.
• Knowledge in GDIT is a plus.

Soft Skills:

• Demonstrated ability to work in a multidisciplinary team with other engineers.
• Flexibility/adaptability in a fast-paced & dynamic environment.

Technology Stack:

• CAD software (Inventor is preferred).

Physical Requirements

• Ability to work in a standard office, laboratory, and manufacturing environment, including extended use of a computer and participation in assembly, integration, and testing activities requiring attention to detail and manual precision.

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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Electronics Engineer - Robotics

Helsing · Barcelona

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Hardware Engineering Barcelona Posted May 6, 2026

Who we are

Helsing is a defence AI company. Our mission is to protect our democracies. We aim to achieve technological leadership, so that open societies can continue to make sovereign decisions and control their ethical standards.

As democracies, we believe we have a special responsibility to be thoughtful about the development and deployment of powerful technologies like AI. We take this responsibility seriously.

We are an ambitious and committed team of engineers, AI specialists and customer-facing programme managers. We are looking for mission-driven people to join our European teams – and apply their skills to solve the most complex and impactful problems. We embrace an open and transparent culture that welcomes healthy debates on the use of technology in defence, its benefits, and its ethical implications.

The role

We are looking for an experienced and passionate Electronics Engineer with a hands-on, problem-solving mindset to join us at our office in Barcelona. You will work on solving real challenges in a fast-paced environment as part of a multidisciplinary team, pushing the boundaries of what is possible in cutting-edge legged robotics. You will design and develop electronic systems — including schematics (SCH), printed circuit boards (PCBs), and firmware (FW) — from concept to implementation. We are seeking someone who is both talented and deeply motivated: someone who can identify and tackle complex challenges, turn bold ideas into reality, and make a meaningful impact as part of an ambitious team

The day-to-day

Defining system and component-level specifications
Designing schematics for complex electronic systems
Developing MCU firmware for real-time embedded applications
Performing PCB layout design, from initial concept through to manufacturing
Defining and executing validation and test plans
Contributing to system-level design and architecture decisions
Troubleshooting and debugging electronics and electrical systems across hardware and firmware

You should apply if you

Have 5+ years of experience designing electronics, including schematics, PCB design, and firmware development
Hold a BSc in Electronics Engineering or a related field (MSc preferred)
Are proficient in both English and Spanish
Are able to work independently, owning projects end-to-end from concept through to validation
Thrive in a fast-paced, innovative environment where no two days are the same

Note: We operate in an industry where women, as well as other minority groups, are systematically under-represented. We encourage you to apply even if you don’t meet all the listed qualifications; ability and impact cannot be summarised in a few bullet points.

Nice to Have

Experience with C2000 MCUs or similar DSP-oriented microcontrollers purpose-built for motor control
Proficiency with advanced debugging tools, such as hardware debuggers, oscilloscopes, and motor control-specific profiling tools
Experience with CAN, SPI, UART, or other embedded communication protocols in real-time systems
Background in high-performance student engineering projects, such as Formula Student or similar competitions
Familiarity with robotics or robotic actuation systems
Experience working in a startup or R&D environment, where adaptability and initiative are key

Join Helsing and work with world-leading experts in their fields

Helsing’s work is important. You’ll be directly contributing to the protection of democratic countries while balancing both ethical and geopolitical concerns
The work is unique. We operate in a domain that has highly unusual technical requirements and constraints, and where robustness, safety, and ethical considerations are vital. You will face unique Engineering and AI challenges that make a meaningful impact in the world
Our work frequently takes us right up to the state of the art in technical innovation, be it reinforcement learning, distributed systems, generative AI, or deployment infrastructure. The defence industry is entering the most exciting phase of the technological development curve. Advances in our field of world are not incremental: Helsing is part of, and often leading, historic leaps forward
In our domain, success is a matter of order-of-magnitude improvements and novel capabilities. This means we take bets, aim high, and focus on big opportunities. Despite being a relatively young company, Helsing has already been selected for multiple significant government contracts
We actively encourage healthy, proactive, and diverse debate internally about what we do and how we choose to do it. Teams and individual engineers are trusted (and encouraged) to practise responsible autonomy and critical thinking, and to focus on outcomes, not conformity. At Helsing you will have a say in how we (and you!) work, the opportunity to engage on what does and doesn’t work, and to take ownership of aspects of our culture that you care deeply about

What we offer

Competitive salary and VSOP options
Learning: €500/£450 yearly allowance
Health & wellness: gym membership and mental health support (Nilo.health)
Social: regular company events and monthly social allowances
Enhanced parental leave: 22 weeks fully paid for primary caregivers & 6 weeks for secondary caregivers
Family support: 5 days of paid family emergency leave, 100% remote work option during pregnancy and phased return to work
A hands-on onboarding program (affectionately labelled “Infraduction”), in which you will be building tooling and applications to be used across the company. This is your opportunity to learn our tech stack, explore the company, and learn how we get things done - all whilst working with other engineering teams from day one

Helsing is an equal opportunities employer. We are committed to equal employment opportunity regardless of race, religion, sexual orientation, age, marital status, disability or gender identity. Please do not submit personal data revealing racial or ethnic origin, political opinions, religious or philosophical beliefs, trade union membership, data concerning your health, or data concerning your sexual orientation.

Helsing's Candidate Privacy and Confidentiality Regime can be found here.