Senior Firmware Engineer – VHDL / FPGA

Oesía Group; Rivas-Vaciamadrid; On-site; EUR 55,000 - 75,000; Full time

Job summary

Grupo Oesía, through Tecnobit in Madrid, seeks a Senior Firmware Engineer with strong VHDL and FPGA experience to join the Avionics & Communications team. You will design and verify synthesizable VHDL for FPGA-based systems and work with Xilinx Zynq/UltraScale devices in a defense/avionics context.

You will use Vivado, ModelSim and Xilinx SDK to develop, verify and debug FPGA solutions, and collaborate with multidisciplinary teams to ensure system integration and verification success.

Qualifications

• 4+ years of professional FPGA/firmware development.
• Hands-on with Xilinx FPGAs (Zynq/UltraScale).
• Experience using the Xilinx Vivado design environment.
• Experience with FPGA simulation, verification and debugging.
• Knowledge of DOORS and requirements-based development.

Responsibilities

• Design and develop synthesizable VHDL for FPGA-based systems.
• Develop and verify solutions using Xilinx Zynq and UltraScale FPGAs with Vivado.
• Perform functional verification with VHDL testbenches and ModelSim; FPGA debugging.
• Design and integrate Xilinx IP cores, custom cores and AXI buses.
• Implement and control interfaces such as UART, SPI and I2C.
• Use ChipScope for embedded logic analysis and FPGA debugging.
• Develop XSCT scripts and stand-alone apps using Xilinx SDK.
• Manage and trace system requirements using DOORS; verify via testing.
• Support system integration, testing and verification with multidisciplinary teams.

Skills

Firmware development

VHDL

FPGA

English

Education

Telecommunications Engineering

Electronics

Industrial Engineering

Computer Engineering

Tools

Xilinx FPGAs

Zynq

UltraScale

Vivado

ModelSim

AXI buses

DOORS

Xilinx SDK

XSCT

Job description

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.

WHAT WILL YOUR MISSION BE?

At Tecnobit, part of Grupo Oesía, we are looking for aSenior Firmware Engineer with strong VHDL and FPGA experienceto join our Avionics & Communications team in Madrid.
We are looking for an experienced engineer with a solid background infirmware development, synthesizable VHDL and FPGA-based systems,who would like to contribute to advanced technology projects in thedefence and avionics sector.

WHAT WILL YOU DO IN YOUR DAY-TO-DAY ROLE?

• 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.

WHAT ARE WE 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.
• 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.
• Experience with ModelSim, AXI buses and embedded communication interfaces will be highly valued.
• Knowledge of DOORS and requirements-based development will be highly valued.
• Ability to work comfortably in English within an international engineering environment.

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.