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 scale

The 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 up
  • Own core payments and money movement infrastructure with a focus on correctness, auditability, and scalability
  • Architect and evolve systems that handle high transaction volumes with strict consistency guarantees
  • Make foundational decisions around data models, reconciliation, and system boundaries
  • Work closely with product and platform engineers while owning the financial core end to end
  • Operate 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 plus
  • 3 years of experience working in software engineering

The role offers long-term earning potential with a strong compensation package, including industry-leading equity