Payments Engineer

We are currently seeking an experienced Payments Engineer to join an start-up client of ours on a permanent basis. This is with a exciting agentic payments start-up who are aiming to build payments for AI agents and transform how money moves between consumers and businesses, and they have received a $10 million seed round recently to rapidly scaleThe role requires candidates to be based within a commutable distance to San Francisco, as the client has a 5 days office policy.Key Responsibilities:Design and build a proprietary financial ledgering system from the ground upOwn core payments and money movement infrastructure with a focus on correctness, auditability, and scalabilityArchitect and evolve systems that handle high transaction volumes with strict consistency guaranteesMake foundational decisions around data models, reconciliation, and system boundariesWork closely with product and platform engineers while owning the financial core end to endOperate with a strong sense of engineering rigor around edge cases, failure modes, and financial correctness Desirable Requirements:Strong background in Payments is essential (ACH/Wire experience is important for this role, as you will be building these rails)Experience with working in a start-up is important for this role - proven experience with building from 0 -> 1 Expertise with Golang or Rust would be a plus for this role (high-throughput systems expertise)Experience with working in the FinTech space would be a plus3 years of experience working in software engineering The role offers long-term earning potential with a strong compensation package, including industry-leading equity

Created: 2026-04-03