About the role
The Opportunity
Sixtyfour turns a single name, email, or domain into a full, verified picture of a person or company — by sending AI agents out to research the open web the way a sharp analyst would, then checking and scoring what they find. You'll build real parts of that: the agents that reason and gather evidence, the systems that run them at scale, and the product people use to see the results.
How We Work
We spend most of our time — call it 80% — understanding the problem deeply, planning, and designing the system before a line gets written. Getting the design right is the hard part and the best part. We hold a high bar, we stay on the edge of what's possible, and everything we ship has to hold up at scale. If you love the part of engineering that happens on the whiteboard — arguing the right design, the failure modes, the tradeoffs — you'll fit here.
What You'll Do
- Build AI agents for OSINT and deep web research — design agents that investigate people and companies across the open web, public records, social platforms, and other sources, then cross-reference and structure what they find.
- Own the thinking, not just the code — dig into the problem, weigh the designs, and write the plan before you build, because that's where the real leverage is.
- Design systems that hold up at scale — reason through data volume, concurrency, latency, and cost up front, so what you build survives real load.
- Ship features end to end — design, build, test, deploy — so customers get something new in weeks, not quarters.
- Build and sharpen the AI agents that research people and companies, so enrichment returns more accurate, better-sourced answers.
- Add new data sources and tools to the enrichment engine, so agents can reach information they couldn't before.
