Mentor ModelSim FPGA Design Engineer Jobs

ModelSim has outlived plenty of predictions of its retirement. Siemens EDA's HDL simulator shipped alongside Xilinx ISE and Intel Quartus for years, and it still runs RTL simulation, functional verification, and timing simulation in production FPGA groups and university labs. A Mentor ModelSim FPGA design engineer role is for someone who lives in that simulator: compiling designs, driving testbenches, and reading waveforms until the logic behaves.

The core skills are specific. You compile and simulate Verilog and VHDL in ModelSim, debug through the waveform GUI, and run testbench simulations to sign off functional behavior before anything reaches hardware. VHDL fluency matters more here than in most consumer silicon flows, since ModelSim's VHDL support is a big reason defense and European teams standardized on it.

ModelSim experience clusters in defense, aerospace, industrial, and academic environments rather than the latest mobile SoC teams. Those groups often froze on toolchains built around Xilinx ISE or older Quartus releases, where ModelSim was the bundled simulator. For the broader category and roles that also accept Questa, see our FPGA engineer semiconductor jobs.

Pay depends heavily on sector. Mid-level FPGA design engineers in the US commonly sit in the $100K to $150K base range, with senior engineers reaching $150K to $190K at large defense and networking employers. Cleared defense roles can add a premium, while academic positions pay below commercial rates. Our semiconductor salary guide has the level-by-level detail.

Save a search on semidesignjobs.com and you will hear when a ModelSim FPGA role opens that fits your filters. If you are weighing where a simulation background can take you next, the analog side shares the same habit of deep tool specialization; browse Cadence Virtuoso analog design engineer jobs for a sense of how tool depth transfers.

FAQ

Is ModelSim still used compared with Questa

ModelSim is still common for FPGA simulation, especially in defense, aerospace, and academic settings where Xilinx ISE and older Quartus environments were the standard. Questa is the professional-grade successor with stronger UVM support and higher simulation performance. Many FPGA design engineer jobs accept either ModelSim or Questa experience, so listing both helps.

What HDL languages does ModelSim support

ModelSim handles Verilog, SystemVerilog, VHDL, and mixed-language designs. VHDL simulation is a particular strength, and its long history of solid VHDL support makes it the preferred choice in defense and European semiconductor teams, where VHDL usage runs higher than in consumer-focused silicon design.

How does timing simulation differ from functional simulation

Functional simulation checks RTL logic behavior with no timing information. Timing simulation runs post-synthesis or post-implementation netlists annotated with real gate and routing delays from the FPGA tools, confirming the design meets setup and hold timing at the target clock. It catches race conditions and path timing violations that functional simulation cannot see.