Senior Software Engineer – Backend

Kovoro; San Francisco (CA); On-site; USD 180,000 - 240,000; Full time

Job summary

Kovoro is seeking a Senior Software Engineer for the Payments Platform to own end-to-end ledger primitives, idempotency, and reconciliation systems. You will work with Go, Postgres, and Temporal, partnering with Product, Risk, and Compliance to deliver audit-grade software.

The role emphasizes strong engineering rigor, design docs, and a clear path to Staff within 18–24 months, with ambitious 10x volume growth plans for the platform.

Qualifications

• 6+ years of backend engineering experience shipping production systems at scale.
• Strong proficiency in Go, Java, or another statically typed backend language.
• Deep experience with Postgres or another relational database — schema design, query optimization, transaction semantics.
• Comfort with distributed systems concerns: idempotency, exactly-once processing, eventual consistency.
• Prior fintech, payments, or financial infrastructure experience strongly preferred.

Responsibilities

• Own end-to-end design and delivery of ledger primitives, idempotency and reconciliation systems.
• Build bank integration adapters and ensure audit-grade software.
• Collaborate with Product, Risk, and Compliance to ship financially correct systems.
• Operate with design docs, code reviews, on-call rotation, and incident retrospectives.

Skills

Go

Java

PostgreSQL

Distributed systems

Idempotency

Payments domain

Tools

Temporal

Job description

Our client is a venture-backed financial infrastructure company that recently closed a $90M Series C from a top-tier growth fund. Their platform powers embedded payments, ACH, and ledger services for mid-market software companies, and the engineering team is rebuilding its core money-movement infrastructure to support 10x volume growth over the next 24 months.

As Senior Software Engineer on the Payments Platform team you will own end-to-end design and delivery of new ledger primitives, idempotency and reconciliation systems, and bank integration adapters. You will work in Go, Postgres, and Temporal, and partner closely with Product, Risk, and Compliance to ship financially correct, audit-grade software.

The team operates with strong engineering rigor — design docs, code review, on-call rotation, and incident retrospectives are part of the culture. Senior engineers are given meaningful technical scope and have a clear path to Staff within 18–24 months.

Requirements

• 6+ years of backend engineering experience shipping production systems at scale
• Strong proficiency in Go, Java, or another statically typed backend language
• Deep experience with Postgres or another relational database — schema design, query optimization, transaction semantics
• Comfort with distributed systems concerns: idempotency, exactly-once processing, eventual consistency
• Prior fintech, payments, or financial infrastructure experience strongly preferred