Staff Software Engineer Payments

Tasks

Work Model: On-site
Salary:
Competitive
NYC candidates preferred; exceptional candidates based in London are also considered.

ABOUT THE ROLE

Baton Corp is looking for a Staff Software Engineer – Payments to design and build core payment services powering high-scale products in the crypto ecosystem.

This is a high-ownership engineering role where you'll solve complex, correctness-critical problems across payment flows, settlement, reconciliation, and financial infrastructure.

KEY RESPONSIBILITIES

• Design and build reliable, scalable payment and financial infrastructure
  .
• Own systems end-to-end, from architecture and implementation to production and on-call.
• Solve complex problems involving payment processing, settlement, reconciliation and auditability.
• Build distributed systems with strong guarantees around idempotency, consistency and correctness
  .
• Work closely with experienced engineers in a fast-moving, low-bureaucracy environment.
• Drive technical decisions and contribute to building systems from 0 → 1.

What We're Looking For

Above all, we want a very experienced engineer who solves problems—someone with the judgment to make high-impact technical decisions without layers of approval, and the instinct to know when to move fast and when a money-movement system demands you slow down and be sure.

Concretely, you:

Are an excellent backend / systems engineer:
We build in Rust, and you'll write it here—but we're open to strong engineers from other systems backgrounds (Go, C++, Java/Scala, and similar). If you've built high-performance, mission-critical systems and care about doing it well, we're confident you'll get productive in Rust quickly; deep Rust experience is a bonus, not a gate.

Think in distributed systems:
Consistency models, fault tolerance, idempotency and exactly-once semantics, async and event-driven patterns, sagas—you've designed systems that stay correct under partial failure and scale.

Have worked where correctness matters:
Payments or fintech ideally—high-throughput transaction processing, ledgers, or financial infrastructure—or another domain where being wrong has real consequences and "mostly works" isn't acceptable.

Treat money and data as sacred:
Strong database fundamentals (transactions, indexing, query and caching strategy, event streaming) and a real respect for auditability and reconciliation.

Are security-first by instinct:
Key management, secrets hygiene, least privilege, and a clean audit trail are second nature.

Operate with ownership:
Bias toward action, comfortable in ambiguity, and you finish what you start—including the unglamorous reliability and operability work.

Things That Make You Stand Out

Deep Rust experience or open-source contributions, and a feel for performance work (profiling, reducing allocations, lock-free structures).

Payments domain depth (card networks, bank rails, chargebacks, open banking

Risk / fraud systems (rule engines, feature stores, device fingerprinting).

Compliance infrastructure (sanctions screening, KYC/AML workflows, audit trails).

Crypto / on-chain experience (wallet infrastructure, stablecoin flows, on-chain programs). You don't need to be a domain expert, but comfort in the space helps.

Accounting fundamentals (double-entry ledgers, reconciliation, regulatory reporting).

Platform / cloud / observability background to complement the application work.

Compensation & Package

Base Salary + Equity/Tokens