FPGA / Firmware Engineer – Defense & Space Sector
Hybrid in Tres Cantos & Santander·Added 2 days ago
Overview
Job details
Hybrid
Office and home days — the ad has the split.
Requirements
Have the right to work in Spain
SENER doesn't mention sponsorship in the ad.
Be near Tres Cantos & Santander for hybrid days
No relocation package mentioned.
Have 5+ years of experience
Mid-level role.
The role
At Sener Aerospace and Space, we are looking for a talented and detail-oriented FPGA/Firmware Engineer to join our team in developing advanced embedded systems for the defense and space industries. The ideal candidate will bring expertise in FPGA design, digital signal processing, embedded programming, and hardware-software integration, with a strong background in regulated and mission-critical environments.
What you'll do
Design, implement, and verify FPGA-based systems using VHDL.
Develop and maintain firmware for Xilinx Ultrascale, RFSoC, and Microsemi platforms.
Collaborate with hardware, software, and systems engineers to define and implement system
architectures.
Perform simulation, synthesis, place & route, and timing analysis using tools like Vivado and Libero.
Support hardware bring-up, integration, and validation in lab environments.
Document designs and contribute to technical reviews and compliance processes.
Requirements
What we're looking for
Hands-on experience with Xilinx FPGAs, including Ultrascale and RFSoC families.
Familiarity with Microsemi (Microchip) FPGA devices and toolchains.
Proficiency in VHDL, C, and Python for embedded development and test automation.
Experience working in Linux-based development environments.
Solid understanding of Git for version control and collaborative development.
Background in defense and space markets, with awareness of standards such as DO-254, ECSS, or MILSTD.
Knowledge of hardware development, including schematic and PCB design using Altium Designer.
Nice to have
Experience with AXI interfaces, JESD204B, PCIe, and other high-speed protocols.
Familiarity with embedded processors (ARM, MicroBlaze) and bare-metal or RTOS environments.
Understanding of digital signal processing (DSP) and RF system integration.
Strong debugging skills using lab equipment (oscilloscopes, logic analyzers, JTAG tools).
Excellent communication and documentation skills.
Education:
Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, or a related field.
At least 5 years of experience in a similar position.
Pay & benefits
What you'll get
Work on high-impact projects in aerospace and defense.
Collaborate with a multidisciplinary team of experts.
Access to cutting-edge tools and technologies.
Competitive salary and benefits.
Opportunities for continuous learning and career growth.
Hiring process
Apply
Screening
Introductory call
Interviews
Job offer
Onboarding
About SENER
SENER is a global engineering and technology group headquartered in Getxo (Bilbao), Spain, with a strong presence in the aerospace, defense, energy, and infrastructure sectors. The company provides engineering, procurement, and construction (EPC) services, as well as specialized consulting, with a workforce of over 5,000 employees worldwide. SENER is known for its work on complex projects, including space systems, offshore wind energy, and large-scale data centers.
In Spain, SENER has a major engineering hub with offices in Bilbao, Madrid, and Barcelona, employing a significant number of engineers. The company is a key player in the Spanish engineering landscape and actively recruits international talent, offering roles in English and Spanish. For international professionals, SENER provides an opportunity to work on high-profile projects in Spain, such as data centers, aerospace, and energy infrastructure, with a collaborative and technically demanding work culture.
- Industry
- Engineering
- Founded
- 1965
- Employees
- 1,000–5,000
- Headquarters
- Getxo, Spain
- In Spain
- Getxo, Madrid, Barcelona
- Website
- group.sener
Good to know if you are moving
- SENER is a Spanish company, so international hires will need a work visa, which the company typically sponsors.
- The company's working language is Spanish, but English is widely used in engineering and technical teams, especially on international projects.
- SENER offers opportunities to work on large-scale, high-profile projects like the Spanish high-speed rail network and offshore wind farms.
- The engineering culture is project-based and rigorous, with a strong focus on technical excellence and safety.
- International hires may find the relocation process to Spain straightforward, with the company providing support for visas and onboarding.









