Senior Firmware Engineer Jobs in Alabama (NOW HIRING)

SimTech, Inc., recognized as one of the 2026 Best Places for Working Parents, is seeking a Senior FPGA Design Engineer to join our dynamic and diverse team in Huntsville, AL. This upcoming opening offers growth and professional development opportunities.

SimTech offers a market‑leading compensation package with excellent benefits, work/life balance, an outstanding retirement plan, and career advancement. The company is an industry‑leading provider of high‑technology defense‑oriented solutions and has been recognized as a Best Place to Work.

• Design, develop, integrate, and test FPGA‑based digital systems for aerospace, defense, and advanced technology applications.
• Develop, modify, and maintain FPGA firmware using Verilog, VHDL, and other Hardware Description Languages (HDLs).
• Create and execute simulation and verification test benches to validate FPGA designs and ensure compliance with system requirements.
• Perform FPGA synthesis, timing analysis, debugging, and optimization to achieve performance, resource utilization, and reliability objectives.
• Integrate FPGA firmware with hardware components, embedded processors, and software applications.
• Design and implement communication interfaces and protocols including RS‑232, RS‑422, UART, SPI, I2C, and other serial communication standards.
• Utilize FPGA development and verification tools such as Xilinx Vivado, Altera/Intel Quartus, Synplify, ModelSim, Verdi, and related environments.
• Support laboratory integration, hardware bring‑up, system verification, and troubleshooting activities.
• Analyze existing firmware and hardware designs to reverse engineer functionality and develop architectural documentation and block diagrams.
• Develop and implement Digital Signal Processing (DSP) functions including filters, FFTs, modulation/demodulation, and error‑correction algorithms.
• Collaborate with systems, hardware, software, and test engineers to ensure successful system integration and performance.
• Support technical reviews, design documentation, test planning, and customer presentations.
• Evaluate emerging FPGA technologies, tools, and design methodologies to improve system capabilities and development efficiency.
• Provide technical guidance and mentorship to junior engineers as needed.
• Other responsibilities as assigned.

• Bachelor of Science degree in Electrical Engineering, Computer Engineering, Mathematics, Physics, or a related technical discipline.
• Minimum of 10 years of experience in FPGA design, digital systems development, or related engineering fields.
• Extensive experience developing FPGA designs using Verilog, VHDL, and HDL‑based design methodologies.
• Strong understanding of digital logic design, digital electronics, and FPGA architectures.
• Experience with FPGA simulation, verification, timing analysis, and hardware integration.
• Proficiency using FPGA development tools such as Xilinx Vivado, Intel/Altera Quartus, Synplify, ModelSim, Verdi, or equivalent.
• Thorough knowledge of Digital Signal Processing (DSP) concepts, algorithms, and implementation techniques.
• Experience implementing, troubleshooting communication protocols including RS‑232, RS‑422, UART, SPI, and I2C.
• Experience integrating FPGA firmware with embedded hardware, software applications, and system‑level components.
• Ability to analyze technical requirements and develop innovative engineering solutions.
• Strong analytical, troubleshooting, and problem‑solving skills.
• U.S. Citizenship with an active Secret Security clearance and the ability to maintain the designated security clearance level.

Employees will work in general office/cubicle and laboratory/testing settings using standard office equipment and electronic testing equipment. The role may require movement of equipment of various weights, the use of personal protective equipment, and occasional travel. Shifts may vary to support business demands.

SimTech, Inc. is an Equal Opportunity/Affirmative Action Employer. SimTech, Inc. is a committed EOE/Vet/Disabled employer. The company provides reasonable accommodation for qualified individuals with disabilities and disabled veterans in its job application procedures. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, genetic information, citizenship, ancestry, marital status, protected veteran status, disability status or any other status protected by federal, state, or local law. SimTech participates in E‑Verify.