FPGA Engineer - Radio & Communications

Harmattan AI

ABOUT US Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following the close of a $200M Series B, valuing the company at $1.4 billion, we are expanding our teams and capabilities to deliver mission-critical systems to allied forces. Our work is guided by clear values: building technologies with real-world impact, pursuing excellence in everything we do, setting ambitious goals, and taking on the hardest technical challenges. We operate in a demanding environment where rigor, ownership, and execution are expected. ABOUT THE ROLE As an FPGA Radar Engineer, you will help design and implement the real-time radar signal-processing pipeline that powers our drone sensing capabilities. You will work closely with hardware and embedded software engineers and be involved throughout the development cycle, from architecture and RTL implementation to integration and field validation. This role is ideal for an engineer with a strong background in DSP, practical FPGA experience, and a genuine interest in radar systems. RESPONSIBILITIES * Develop FPGA-based radar signal-processing pipelines, encompassing key stages such as pulse compression, Range/Doppler processing, CFAR detection, and target tracking handoff. * Contribute to the RTL implementation of radar waveform generation and reception, including both FMCW and pulsed waveforms. * Perform system-level radar simulations, including Range-Doppler maps, SNR modeling, clutter analysis, and assessment of detection performance under realistic conditions. * Write and maintain testbenches and validation frameworks tailored to radar processing chains, enabling rapid debugging and iteration. * Collaborate closely with RF and hardware engineers to ensure seamless integration between FPGA designs and the radar front end - including antenna, Tx/Rx modules, ADC/DAC interfaces, timing, and synchronization. * Document the interfaces between the radar processing core, system software, and hardware layers. CANDIDATE REQUIREMENTS * Master’s degree (or equivalent) in Electrical Engineering, Signal Processing, Applied Physics, or a related field. * At least 3 years of hands-on FPGA development experience, including practical work with radar or sonar signal processing (using VHDL and/or Verilog/SystemVerilog). * Strong working knowledge of radar signal processing fundamentals, including pulse compression, matched filtering, Range-Doppler processing, CFAR, and clutter rejection. * Familiarity with FMCW and pulsed radar architectures, including waveform generation and digital back-end processing on FPGA. * Solid foundation in DSP concepts: FFT, FIR/IIR filtering, windowing, fixed-point arithmetic, and precision management. * Experience with test benches development and hardware-in-the-loop validation. * Rigorous and collaborative, with the ability to work effectively across hardware, software, and systems teams. * 100% dedication to Harmattan AI’s mission, vision, and ambitious growth plans, ready to go the extra mile to ensure operational excellence. We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.

Harmattan AI

ABOUT US Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following the close of a $200M Series B, valuing the company at $1.4 billion, we are expanding our teams and capabilities to deliver mission-critical systems to allied forces. Our work is guided by clear values: building technologies with real-world impact, pursuing excellence in everything we do, setting ambitious goals, and taking on the hardest technical challenges. We operate in a demanding environment where rigor, ownership, and execution are expected. At Harmattan AI, we design and deploy advanced AI-powered systems for defense. Our work sits at the intersection of cutting-edge technology and national security, fast-moving, high-stakes, and deeply mission-driven. We hire selectively and work with urgency, precision, and a commitment to solving problems that matter. If you're exceptional in your field and driven by building real-world impact, we want to hear from you. Even if no listed role matches your profile, we welcome proactive applications from individuals who thrive in high-responsibility environments and bring deep expertise in areas such as: * Aerospace & Robotics – GNC, autonomy, flight software, mission planning * Embedded Systems & Hardware – FPGA, real-time systems, electronics * Software & AI – machine learning, perception, signal processing * Business, Strategy & Operations – program execution, partnerships, international expansion WHAT WE’RE LOOKING FOR We value individuals who: * Set a high personal bar for quality and technical excellence * Take ownership and move fast under uncertainty * Push boundaries, challenge assumptions, and deliver under pressure * Are motivated by complex challenges with meaningful geopolitical stakes WHAT TO INCLUDE * A resume * A short message telling us what you’re best at, and how you think you could contribute to our mission We review all applications thoroughly and will reach out if there’s a potential fit. We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.

Hive Robotics

ROLLE Hive Robotics is building Europe's first full-stack orchestration platform for unmanned systems, connecting, controlling, and commanding multi-vendor drone and robot swarms across air, land, sea, and space. Our RF communication systems are Made in Germany, deployed on active frontlines, and targeting a 5 billion EUR European tactical communication market with no sovereign alternative today. We are now looking for an Embedded Software Engineer who joins our distinguished software team developing the embedded software that powers the radio and communication backbone of our systems. Our current focus is our RF communication module family for unmanned systems, in serial production and scaling fast. You will work at the intersection of embedded software, RF, and networking, building production-grade firmware for ARM-based radio modem hardware and shaping our next generation of Software Defined Radio platforms. This is not a maintenance role. You design. You build. You ship. You will work directly with our hardware engineers, RF engineers, and firmware architects, and your work will run in systems that operate in demanding, jamming-resistant field environments where reliability is non-negotiable. VERANTWORTLICHKEITEN * Design, develop, and maintain embedded firmware for ARM-based microcontrollers in production radio modem hardware. * Integrate, configure, and optimize RTOS environments (Zephyr preferred, or FreeRTOS). * Design, implement, and debug low-level networking protocols, including custom Layer 2 (MAC) and Layer 3 (IP/TCP/UDP) functionality. * Develop secure bootloaders, firmware integrity mechanisms, and robust remote firmware update solutions over Ethernet/IP networks. * Perform board bring-up, BSP development, and platform customization for ARM-based systems, including low-level peripheral drivers and hardware abstraction layers. * Contribute to the architecture and development of next-generation SDR and wireless communication platforms. * Analyze and optimize system performance, memory utilization, latency, and power consumption. * Investigate and resolve complex issues using debuggers, oscilloscopes, protocol analyzers, and network diagnostic tools. * Establish and maintain automated verification, testing, and CI/CD pipelines for embedded and Linux-based software. * Collaborate closely with hardware and RF engineers during system integration, validation, and troubleshooting, and contribute to code reviews and software quality standards. ANFORDERUNGEN Must-Have Qualifications * Degree in Embedded Systems, Computer Engineering, Electrical Engineering, or a related field. * Proven track record delivering production-grade embedded firmware. * Strong hands-on experience with ARM Cortex-M and/or Cortex-A platforms. * Excellent C/C++ skills for embedded systems. * Experience with Zephyr (preferred) or another RTOS (FreeRTOS, ThreadX). * Solid understanding of embedded TCP/IP and Ethernet-based communication. * Experience developing bootloaders and secure update mechanisms. * Comfortable with JTAG/SWD debugging and hardware bring-up. * High degree of ownership and the ability to collaborate effectively across disciplines. * Excellent communication skills in English; German is a plus. * Based in Munich or willing to relocate. Nice-to-Have Qualifications * Embedded Linux development experience, including Yocto/PetaLinux build systems. * Hands-on experience with Xilinx Zynq or Zynq UltraScale+ MPSoC platforms. * Familiarity with Linux kernel configuration, device trees, bootloaders (U-Boot), and driver development. * Experience debugging Linux-based embedded systems using JTAG, GDB, kernel logs, and performance analysis tools. * Understanding of Linux networking internals and TCP/IP stack implementation. * Experience with high-speed interfaces such as JESD204 and LVDS in FPGA/SoC-based systems.