Role overview

Senior Software Engineer, Ledgering

Requirements and responsibilities

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You Will

  • Design, build, and operate the balance and transaction systems of record that serve as the financial source of truth for millions of merchants and customers.
  • Build settlement orchestration that determines how account holders get paid: schedules, amounts, deposit methods, and withholdings.
  • Develop self-serve ledgering APIs with durable semantics and clear contracts, so partner teams can stand up a new balance or transaction type in about a day instead of waiting weeks on custom integration work.
  • Emit balance and settlement data that downstream finance, reconciliation, and reporting teams can trust, against agreed data contracts.
  • Design and implement reliable, high-volume distributed transaction-processing systems, making thoughtful tradeoffs between consistency and availability when both are not possible.
  • Drive convergence across a large portfolio of financial services: consistent transaction and balance models, shared workflow tooling, and predictable integration patterns.
  • Operate tier-0 and tier-1 financial systems against published SLOs, and debug production issues across services and multiple levels of the stack in a high-reliability environment.
  • Work AI-natively: use AI agents throughout the development lifecycle, and build agents and automation that reduce operational toil across our services.
  • Lead complex projects end to end, breaking the work into components and milestones that other engineers can pick up.
  • Mentor other engineers and contribute to the technical direction of the team.
  • Work with engineers, product managers, and finance and treasury stakeholders across the company to ship new capabilities at scale.

You Have

  • A minimum of 8 years of related experience with a Bachelor's degree; or 6 years and a Master's degree; or a PhD with 3 years experience; or equivalent experience.
  • Experience designing and operating distributed, high-throughput, fault-tolerant services, with a strong understanding of consistency, idempotency, and failure handling.
  • Experience building money-movement systems such as ledgers, double-entry accounting, settlement, or treasury, or the curiosity and drive to build deep expertise in the domain.
  • Proficiency in at least one major programming language (for example Java, Kotlin, or Go) and strong SQL.
  • Experience leading complex, ambiguous projects across multiple engineering teams and driving clear next steps in areas without clear ownership.
  • High standards for software architecture and engineering practices, including maintainable and testable code, CI/CD, and observability, in a complex, high-stakes financial environment.
  • Proficiency in using AI tools throughout the software development lifecycle to improve engineering productivity, problem solving, and software delivery.
  • Strong written and verbal communication skills.

Technologies We Use and Teach

  • Java, Kotlin, Python
  • AI agents and tooling across the development lifecycle, including AMP, Codex, Claude, Goose and MCP
  • Temporal, Protocol Buffers, jOOQ, GraphQL
  • MySQL, Aurora, Vitess, Databricks, Snowflake
  • AWS, Kubernetes, Terraform, Datadog
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Browse stack
Focus10414 Engineering - Fintech PlatformRole area
Seniority signalSeniorCandidate level
StackAWS, CI/CD, GraphQLPrimary skills
Location1 accepted countryEligibility

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