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Senior Firmware Engineer – VHDL / FPGA

On-site in Madrid·Added yesterday (last checked 27 Oct)

Grupo Oesia

111 open roles

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Our summary

Work mode: On-site, Madrid
English: Required
Experience: 4+ years
Education: University degree

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Skills

Requirements

What we're looking for

Degree in Telecommunications Engineering, Electronics, Industrial Engineering, Computer Engineering, or another relevant engineering discipline.
Minimum of 4 years of professional experience in FPGA or firmware development.
Strong professional experience developing synthesizable VHDL.
Hands-on experience with Xilinx FPGAs, particularly Zynq and UltraScale.
Professional experience using the Xilinx Vivado design environment.
Experience in FPGA simulation, verification and debugging.
Ability to work comfortably in English within an international engineering environment.

Nice to have

Experience with ModelSim, AXI buses and embedded communication interfaces will be highly valued.
Knowledge of DOORS and requirements-based development will be highly valued.

The role

Senior Firmware Engineer - VHDL / FPGA | Defence & Avionics (Global Opportunity) - Grupo Oesía

Our projects become technology that protects, connects and drives strategic sectors: our own. At Grupo Oesía, we work to ensure innovation delivers real impact, and we are looking for people who want to be part of that challenge.

At Tecnobit, part of Grupo Oesía, we are looking for a Senior Firmware Engineer with strong VHDL and FPGA experience to join our Avionics & Communications team in Madrid.

We are looking for an experienced engineer with a solid background in firmware development, synthesizable VHDL and FPGA-based systems, who would like to contribute to advanced technology projects in the defence and avionics sector.

What you'll do

Design and develop advanced synthesizable VHDL for FPGA-based systems.
Develop and verify solutions based on Xilinx Zynq and UltraScale FPGAs, using Vivado.
Perform functional verification using VHDL testbenches and ModelSim, as well as FPGA debugging and integrated logic analysis.
Design and integrate Xilinx IP cores, custom cores and AXI buses.
Implement and control communication interfaces such as UART, SPI and I2C.
Use ChipScope for embedded logic analysis and FPGA debugging.
Develop XSCT scripts and stand-alone applications using Xilinx SDK.
Manage and trace system requirements using DOORS, ensuring their verification through testing.
Support system integration, testing and verification alongside multidisciplinary engineering teams.

About Grupo Oesia

Grupo Oesía is a Spanish multinational technology company dedicated to dual-use engineering, developing products and solutions for sectors such as aerospace, defense, cybersecurity, and digital transformation. Founded nearly 50 years ago, it operates in 42 countries across four continents and works through five brands: Oesía Networks, Tecnobit, Cipherbit, UAV Navigation, and Inster. Their core engineering focus spans optronics, tactical and secure communications, satellite communications, simulation, avionics, and space systems.

The company's activities in Spain include a significant engineering and technology presence, with roles spanning AI software, hardware and RF engineering, cybersecurity, project management, and consulting. Their roles highlight a strong focus on defense, space, and critical systems, with explicit opportunities for international professionals, including relocation to Spain. While Spain is a key operational hub, the company's global footprint across 42 countries underscores its international scope. Culture is rooted in innovation and contributing to Spain's technological sovereignty, often making roles attractive to engineering and tech professionals looking for impact in defense and space sectors.

Industry: Defence Electronics
Employees: Unknown
Headquarters: Madrid, Spain
In Spain: Madrid

Good to know if you are moving

Roles with 'Relocation to Spain' in the title suggest the company actively recruits international hires.
The group is a multinational tech company with projects in 42 countries, providing exposure to international environments.
Spain is a central hub with roles across Madrid and possibly other locations, offering a gateway to working in Spain.
Work focuses on defense, space, aerospace, cyber, and satellite communications sectors—high-specialization areas.
As a 100% privately held Spanish company, it emphasizes sovereignty and national technology development for Spain.

In their own words

About the company & team

What will you find at Grupo Oesía?

Projects with real technological impact.
Teams where sharing knowledge is part of everyday work.
Continuous professional development tailored to each profile and individual.
An environment where engineering and people grow together.

If you are motivated by tackling new technological challenges and being part of projects that leave a lasting impact, we would be delighted to meet you.

Build your career where technology has a purpose. At Grupo Oesía, we develop dual-use digital and industrial engineering projects in strategic sectors, strengthening key capabilities for Spain and Europe through our technology centres and alongside a team of more than 3,800 professionals across Spain, Brussels, Latin America and Asia.

At Tecnobit-Grupo Oesía we design, develop, manufacture and maintain technology that is already in operation: intelligent imaging systems, secure tactical communications and simulation centres. A clear example of how the technology we create here delivers real-world impact.

We operate from our technology centres across Castilla-La Mancha, Andalusia, Galicia, Valencia and Madrid: innovation hubs that contribute key capabilities to national sovereignty and Europe's strategic autonomy.

But what truly sets us apart are the people who make each of those projects possible.

We want you to develop your full potential. That is why we build professional environments based on equal opportunities, inclusion and the recognition of every individual's talent.

We foster an environment where talent can learn, collaborate and continue growing, contributing new ideas and reaching its full potential. Because innovation thrives when different perspectives work towards a shared purpose.

If you are looking for a place to grow your career, take on new challenges and be part of impactful projects, we would love to meet you.

Engineering the Future, Together.

All open roles at Grupo Oesia