STAFF SOFTWARE ENGINEER PAYMENTS

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 youll 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 Were Looking For

Above all we want a very experienced engineer who solves problemssomeone 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 youll write it herebut were open to strong engineers from other systems backgrounds (Go C Java/Scala and similar). If youve built high-performance mission-critical systems and care about doing it well were confident youll 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 sagasyouve designed systems that stay correct under partial failure and scale.

Have worked where correctness matters: Payments or fintech ideallyhigh-throughput transaction processing ledgers or financial infrastructureor another domain where being wrong has real consequences and mostly works isnt 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 startincluding 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 dont 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