Senior Software Engineer

ABOUT LATTICE

Payments infrastructure is long overdue for a rethink. The rails that move money today were designed for a different era — fragmented, opaque, and stubbornly difficult to work with. Lattice is changing that.

We're building a payment orchestration platform that gives merchants and developers intelligent, programmable control over how payments move — across processors, methods, and markets. Think smarter routing, real-time decisioning, and a developer experience that doesn't make you want to throw your laptop.

We're pre-seed, which means the foundation is being laid right now. The architecture decisions being made today will shape how billions of dollars flow through this platform. We hold ourselves to PCI DSS 4.0 and SOC 2 standards — an uncommon bar at this stage — because we believe the right time to build with integrity is from day one, not after your first breach.

If you've ever looked at a payment integration and thought "this is insane, there has to be a better way" — you're going to feel right at home.

THE ROLE

We're not hiring a coder. We're hiring someone who builds things — who sees a problem and immediately starts thinking about the cleanest, most durable way to solve it, not just the fastest way to get a ticket to "done."

You'll join a small, highly capable engineering team and own meaningful slices of the platform end-to-end. That means making real architectural calls, writing the code, shipping it, and standing behind it. There's no PM handing you fully-specced tickets. There's no separate platform team abstracting away the hard infrastructure decisions. There's no "that's not my area." There's just the problem in front of you, the tools in your hands, and the expectation that you'll figure it out.

We use AI-assisted development tools aggressively, which means the bar isn't about typing speed or framework trivia. It's about judgment. Knowing when an abstraction is worth it. Knowing when the simple thing is the right...