Senior FPGA Engineer

Job Title

Senior FPGA Engineer

Role Summary

Develop and optimize FPGA implementations using Vitis HLS and C/C++-based design flows for mission-critical embedded systems. Work cross-functionally with hardware, software, avionics, and systems teams to deliver high-performance, deterministic FPGA functionality for embedded platforms.

Experience Level

Senior — experienced engineer. The posting denotes a senior role; specific years of experience are not stated.

Responsibilities

Key duties include implementing HLS-based FPGA designs, validating hardware, and integrating FPGA functionality into embedded systems.

• Develop FPGA implementations using Vitis HLS to generate VHDL/Verilog from C/C++ code.
• Translate algorithms and system requirements into efficient hardware architectures optimized for performance and latency.
• Develop and optimize high-level synthesis pipelines and dataflow architectures.
• Collaborate with software, avionics, and systems engineers to integrate FPGA features into embedded platforms.
• Perform FPGA simulation, synthesis, timing analysis, and hardware validation.
• Optimize designs for throughput, determinism, and resource utilization.
• Support hardware integration, board bring-up, and debugging.
• Contribute to verification and testing of FPGA functionality.

Requirements

Core technical qualifications and clearances required; preferred skills listed separately.

• Must-have: Practical experience with Vitis HLS or similar High-Level Synthesis tools.
• Must-have: Strong C/C++ programming for hardware-oriented development and experience generating VHDL/Verilog from HLS workflows.
• Must-have: Familiarity with FPGA development flows including simulation, synthesis, and timing closure.
• Must-have: Experience with Xilinx/AMD FPGA platforms and toolchains (Vivado, Vitis, or equivalent).
• Must-have: U.S. citizenship and ability to obtain and maintain a U.S. government-issued security clearance.
• Nice-to-have: Experience with high-throughput signal or sensor processing, real-time embedded systems, or FPGA-based accelerators.
• Nice-to-have: Familiarity with AXI interfaces, DMA, memory-bandwidth optimization, and HLS pipeline tuning for latency and parallelism.
• Nice-to-have: Background in aerospace, defense, robotics, or other high-performance embedded systems.

Education Requirements

Bachelor's degree in Electrical Engineering, Computer Engineering, or a related technical field.

About the Company

Company: Castelion

Castelion develops next-generation long-range strike weapons systems for the U.S. and allied defense community, focusing on short iterative design cycles, rapid testing, and modern commercial manufacturing strategies to deliver mission-critical hardware at scale.