FPGA Engineer
HybridTallinn, Harjumaa, Estonia
Job Summary
Design and develop FPGA/SoC solutions using Xilinx 7-Series and UltraScale/UltraScale+ devices, focusing on digital signal processing, algorithms, and RF applications. Develop RTL designs in VHDL and Verilog, implementing and optimizing DSP blocks such as FIR/IIR filters, FFT, and decimation/interpolation chains for RF and SDR systems. Perform RTL simulation, verification, and hardware debugging while optimizing designs for timing closure and resource utilization. Collaborate with hardware, embedded software, DSP, and RF engineers to integrate FPGA logic with Xilinx SoC subsystems. This full-time hybrid role is based in Tallinn, Estonia. Sky Spy is a dual-use startup developing next-generation RF intelligence solutions for contested environments, backed by leading European VCs.
Required Qualifications
- 5+ years of commercial experience in FPGA development
- Strong knowledge of VHDL and/or Verilog
- Hands-on experience with Xilinx FPGA/SoC platforms, including: 7-Series; UltraScale / UltraScale+; Zynq SoC
- Solid understanding of digital design and RTL development
- Practical experience implementing DSP algorithms on FPGAs
- Understanding of RF signal processing and SDR architectures
- Experience with Xilinx Vivado and Xilinx IP
- Good understanding of timing analysis, clock-domain crossing (CDC), reset strategies, and FPGA constraints
- Experience debugging FPGA designs on real hardware
Desired Qualifications
- experience with both VHDL and Verilog
- Experience with Zynq-7000 / Zynq UltraScale+ MPSoC
- Knowledge of AXI4 / AXI-Stream
- Experience with high-speed interfaces such as JESD204, Ethernet, PCIe, DDR, etc.
- Experience implementing FFT, DDC/DUC, channelizers, beamforming, and other DSP blocks
- Experience with ADC/DAC interfaces and RF transceivers
- Knowledge of SystemVerilog, Tcl, Python, or C/C++
- Experience with hardware/software co-design
- Strong understanding of fixed-point arithmetic and FPGA-oriented DSP optimization
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