Defense tech is one of the most exciting places to be an engineer right now — real hardware, hard problems, and a mission that matters. It's also a little different from a normal software or hardware job hunt, mostly because of clearances and citizenship rules. Here's how to actually get in.
The skills that matter
Defense tech spans software and hardware, but most roles lean on a core stack:
- Software: C++ and Python dominate; Rust is rising for embedded and safety-critical work. Real-time systems, robotics middleware, and data pipelines show up constantly.
- Embedded & hardware: firmware, FPGAs, RF, power electronics, and PCB design — the stuff that makes physical systems work.
- Autonomy & perception: computer vision, sensor fusion, SLAM, and controls — the core of drones and unmanned systems.
- A specialty: depth in one area (guidance, RF, propulsion, autonomy) beats shallow everything. These teams hire for the hard part.
Citizenship and clearances — read this first
Two things trip up newcomers:
- U.S. person status: because of export-control rules (ITAR/EAR), most defense-tech roles require you to be a U.S. citizen or green-card holder. This is non-negotiable for a lot of jobs.
- Security clearance: many roles either require an active clearance or will sponsor one after you're hired. You cannot get a clearance on your own — a company sponsors it. So a role that "requires clearance" often still hires uncleared people and sponsors them. (Full breakdown here.)
Build a portfolio that proves it
The single highest-leverage thing you can do: build something real and show it. A drone you programmed, an embedded project on GitHub, a perception model trained on a real dataset, a control system you tuned. A 30-second video of the thing working beats a paragraph of bullet points. Defense engineers can tell in a minute whether you actually build things.
Where to apply — and how
Apply directly through companies' job boards, and apply early — these teams move fast. Defense Tech Jobs aggregates openings from real defense-tech companies and refreshes daily. Filter to your specialty: