Product Engineer

What You'll Work On

You'll work on building new product features from scratch. We have a long list of ideas that could become core products – from customer requests, from the team, and from watching how compliance actually works. You'll pick the highest-leverage ones, prototype them fast, and turn them into features that expand what Sphinx can do.

You'll own the full stack. You'll design, build, and ship end-to-end: frontend interfaces, backend systems, AI integrations, and everything in between. You're not handing off a spec – you're handing off a working product.

You'll move between product and engineering fluidly. You'll talk to customers to understand their pain, prototype solutions, test with real users, and iterate until it's right.

You'll think like a PM and build like an engineer. Your experiments will shape what Sphinx builds next. You'll work closely with the CEO and core engineering team to decide which bets to double down on and which to shelve.

What We Look For

• You're deeply technical: You have strong fundamentals in software engineering and a working knowledge of ML/AI systems.
• You're comfortable building end-to-end (backend, frontend, model integration, infra) whatever the experiment requires.
• You build fast and learn faster: You can go from idea to working prototype in days, not weeks.
• You're comfortable throwing things away when they don't work and doubling down when they do.
• You have product instincts: You don't just build what's technically interesting – you build what's useful. You think about the user, the workflow, and the problem before writing a line of code.
• You're creative and opinionated: You have strong ideas about what AI agents should be able to do and how people should interact with them. You bring new ideas to the table, not just execute on existing ones.
• You ship and iterate: You'd rather put something imperfect in front of users than spend weeks perfecting it in isolation. You learn from real feedback, not assumptions.
• You communicate with clarity: We move fast with minimal process. You need to articulate what you're building, why it matters, and what you've learned – to engineers, to the CEO, and to customers.
• You're energized by impact: Our customers protect the financial system from criminals. Your experiments will become the tools that make that possible at scale.