FPGA Engineer
Posted Sep 11, 2026 · We last checked this listing on Oct 6, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
Walk me through an FPGA design you took from development through simulation, testing and deployment.
What they are checking: Whether they have owned the full life cycle the posting describes, not only one piece.
Tell me about a time a hardware bug made it to production. How did you find it and what changed afterward?
What they are checking: Honesty about failures and whether they tightened verification as a result.
What would you do
You look at the day's results and see one design is slower than expected on certain messages. How do you find out why?
What they are checking: Whether they analyze real production data to find speedups, as the posting expects daily.
You often start new projects. How do you work with traders and software engineers to define what the hardware should do?
What they are checking: Communication with non-hardware people so the design solves the right trading problem.
About the work
Your design is failing timing closure. What do you look at first, and what are your options?
What they are checking: Real STA experience and a practical toolbox like pipelining, floorplanning and logic restructuring.
How would you parse a market data feed in FPGA logic with the lowest possible latency?
What they are checking: Ability to apply FPGA skills to trading problems where every clock cycle matters.
How do you verify a design in SystemVerilog before it goes to hardware?
What they are checking: A disciplined verification approach with testbenches and coverage, since bugs in hardware are costly.
What are the tradeoffs between doing something in FPGA logic and doing it in software?
What they are checking: Judgment about where FPGA adds value and where it just adds complexity.
How do you handle clock domain crossings safely?
What they are checking: Core hardware design knowledge that prevents rare but serious failures.
How do you use Python in your FPGA workflow?
What they are checking: Whether they can script tests, analysis or tooling to work faster.
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Practice this out loudThe full job description
As published by Simplex Trading.