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# Satellite Platform System Engineer

- **Company:** Postaladdress
- **Location:** Madrid, Spain
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, Subsystems
- **Published:** August 9, 2026
- **Apply:** https://www.jobleads.com/es/job/e642fdb7db2ae57283bc1a59b6a4873af

## About the Role

* an MSc in aerospace, mechanical or electrical engineering;
 * 5-8+ years in platform or satellite system engineering;
 * at least one programme carried through a full design cycle; real ownership of technical budgets;
 * broad understanding of every subsystem and genuine depth in one; and practical knowledge of ECSS and how to tailor it.
 * Small satellite, LEO or serial production experience is a strong plus, as is electric propulsion.

Small senior team, early-phase programme, genuine technical ownership.

Our projects are agile and innovative and require a combination of solid technical knowledge and skills, personal initiative and teamwork. You will enjoy it if you are comfortable with surpassing challenges and learning every day.

The position is permanent and full-time. Be ready to enjoy working in Madrid, but also to travel from time to time across Europe and overseas.

Working language is English. Spanish is very much welcome but not a strict must.

## Description

We are a Spain-based space engineering company working across satellite communications systems and software, with customers throughout the European Union. We are starting a new LEO constellation programme and we need someone to own the platform.

You will be the person who ensure and knows, at any given moment, whether the design still closes - in mass, power, propellant, pointing, thermal, data and reliability - and what has to change when it does not.

You will:

 * Own the platform technical budgets through the full lifecycle, and the margin philosophy behind them
 * Define the platform architecture and flow requirements down to AOCS, EPS, propulsion, thermal, structures, avionics and TT&C
 * Control the platform-to-payload and platform-to-launcher interfaces
 * Lead the architecture trades: propulsion technology, power architecture, redundancy philosophy
 * Drive design for serial production - a bus that works once but cannot be built two hundred times is not a design we can use
 * Define the model philosophy and verification approach, and support the test campaigns


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