User Terminal Senior Software Engineer Platform APIs - OneWeb Next

## Connect with Eutelsat Be part of a new era in communications, transforming connectivity with Eutelsat – the world’s first GEO-LEO integrated global satellite operator. As a leader in satellite communications, we provide global connectivity solutions - connecting businesses, communities, and governments around the world. We can connect you at on land, at sea and in the air.

We also deliver broadcast television channels and packages, transmitting vital news reports around the world. ## With Eutelsat You’ll Get To - Pioneer the future of Space Technology - Bring connectivity to remote frontiers - Collaborate with customer-centric experts - Embrace cultural diversity in our global team In a dynamic industry where passion drives our teams to make a difference to become the most trusted partner for global satellite connectivity, you will elevate your skills in a stretching, rewarding, and meaningful environment.

At Eutelsat, we’re united by inclusion and diversity, striving for gender balance and social responsibility, on Earth and in Space. ## Why Eutelsat ? - Commitment to Diversity & Inclusion: With colleagues from over 75 countries, we embrace our global DNA and are committed to creating an inclusive workplace.

We are proud that one-third of our executive team and 60% of our board are represented by women. - Ways of Working That Drive Us: As "One Team," we work collaboratively towards shared goals, with customer-centricity, respect, and inclusivity as our guiding principles. - Sustainability at Our Core: At Eutelsat, sustainability is more than just a word; it’s woven into our strategy.

We’re dedicated to balancing social, environmental, and economic growth - both on Earth and in space. - Work-Life Balance: We offer flexible schedules and hybrid work options to help you balance your personal and professional life. At Eutelsat, we are committed to supporting your well-being and ensuring you have the flexibility you need to succeed both at work and at home. ## Ready to grow with us?

Apply today and help us build a more inclusive, sustainable future in the world of satellite technology.

We are looking for a senior software engineer to build the Linux platform software of Eutelsat's next generation LEO, multi-orbit and IRIS² user terminals: the layer that wraps the modem and the antenna subsystem, exposes them through clean and stable APIs, integration of higher layer of the User Terminal software stack to ensure tight and seamless interaction between the application functions of the UT and the NAS layer of the software stack for call setup, retry and automated recovery from failures etc.

Making the terminal manageable, observable and serviceable in the field. Everything above the physical layer that a terminal needs in order to be operated at scale sits in your scope. You will also bring the insights and know-how on how end-user applications e.g. CBH, vessel engine management, SD-WAN solution etc, interface with the User Terminal and the QoS signaling and traffic management/control on the user plane.

You will work alongside our modem and RF architects and with external engineering partners. The terminal is a constrained embedded system with real-time neighbours, so the work spans device level integration, service design and operational tooling: control and telemetry paths, secure update, diagnostics, and the interfaces towards our ground systems and our support organisation.

This is a founding role in a capability under construction.

The architecture, the tooling and the practices are still to be defined, and what you build will become the software foundation of the terminal portfolio. ## What you'll do - Collaborate across teams to translate product, service and operational requirements into robust technical implementations; - Design, develop and maintain the terminal platform software on embedded Linux: system services, device abstraction, inter-process communication, lifecycle and state management, and the boundary towards the modem and antenna subsystems; - Design and maintain the terminal APIs: local and remote control interfaces, configuration, telemetry and event streams, versioning and backward compatibility, and the contract they establish with our ground systems and management platforms; - Implement the control and monitoring paths towards the modem and the antenna manager: command sequencing, state synchronisation, error propagation, and the timing constraints these interfaces impose; - Build the observability of the terminal: structured logging, metrics, event and fault reporting, capture of diagnostic data, and the remote access paths our field and Tier-4 support teams depend on; - Own secure and reliable software update in the field: image management, roll-back and fail-safe behaviour, integrity and authenticity verification, and recovery from interrupted updates; - Write and maintain unit and integration tests, and build the automation that keeps the platform verifiable as it grows; - Participate in code reviews, architecture discussions and delivery processes, including joint reviews with external engineering partners; - Assist in system validation, debugging and troubleshooting of complex issues across the software, firmware and hardware boundary, in the laboratory and on deployed terminals; - Contribute to the board support package and integration work: build system, root filesystem, device drivers and kernel interfaces, boot and resource partitioning on a system on chip shared with real-time functions; - Mentor engineers and promote best practice in software design, testability and maintainability; - Engage professionally with internal stakeholders, partners and customers to ensure the platform serves the operational reality rather than the specification alone. ## Qualifications - Bachelor's or Master's degree in computer science, software engineering, electrical engineering or a related field; - 10+ years of experience in software development, including embedded or systems software on Linux; - Strong hands-on experience with C++, including work on embedded systems and mission-critical applications; - Solid understanding of embedded systems, real-time constraints, concurrency, memory management and software architecture; - Experience designing and maintaining APIs and service interfaces intended to be consumed by other teams or systems, with attention to versioning and long-term stability; - Comfortable with Linux at system level: init and service management, IPC, sockets and networking, filesystems, permissions, and cross-compilation for embedded targets; - Proficiency with unit testing frameworks and methodologies, and with continuous integration on embedded targets; - Practical debugging skills across the software and hardware boundary: core dumps, tracing, profiling, and instrumentation of a running system; - Eagerness to learn and work with Rust; existing Rust experience is a plus; - Strong communication skills and the ability to work independently or collaboratively, including with engineers from partner organisations; - Comfortable building a capability rather than inheriting one, with little existing tooling or process to rely on; - Eligibility under applicable European and United States export control regulations; - Fluent professional English. ## Nice to have - Experience with satellite terminals, routers, set-top boxes or other connected customer premises equipment deployed at scale; - Experience with Yocto or Buildroot, board support packages, kernel and driver work; - Experience with secure boot, signed images, key management and field update mechanisms; - Experience with remote management and telemetry at fleet scale, and with the protocols used for it; - Familiarity with networking beyond the socket: routing, tunnelling, quality of service, and IP behaviour over a variable satellite link; - Willingness to contribute occasionally to front-end work, such as local user interfaces, installation tools or