Senior Backend Engineer, Accounting & Treasury (Remote)

Remote; San Francisco (CA); Remote; USD 140,000 - 210,000; Full time

Job summary

Caliza is seeking a Senior Software Engineer for the Accounting & Treasury team to design and own the ledger, reconciliation, and fiat–stablecoin conversions across rails. Our settlement ecosystem requires precise money handling and auditable trails, with rapid iteration in a remote startup.

You will work closely with finance, compliance and operations to build resilient systems in Kotlin and Spring Boot, enabling scalable liquidity management and cross-border payments.

Qualifications

• 5+ years of professional back-end development experience.
• Experience building ledgers, accounting systems, or other systems where correctness of money is critical.
• A solid understanding of double-entry accounting: debits, credits, balances and reconciliation.
• Strong experience with Kotlin or Java (we use Kotlin), and relational databases such as Postgres.
• Experience with exact decimal arithmetic, idempotency, and consistency in distributed systems.
• Experience with message-driven architectures (e.g. RabbitMQ).
• Hands‑on experience with AI‑assisted development in your daily work, with the judgment to review and question what the tools produce.
• Comfort with high autonomy and ambiguity in a fast‑moving, remote startup.
• Clear written communication. Most of our collaboration is async.

Responsibilities

• Design, build and maintain ledger and treasury services in Kotlin and Spring Boot.
• Model money movement correctly with double-entry accounting, including returns, reversals, fees and FX.
• Build reconciliation between our ledger, bank statements and on-chain wallet balances, and surface breaks clearly.
• Make our systems idempotent and resilient, so retries and partial failures never create or lose money.
• Maintain immutable audit trails that support finance, compliance and external audits.
• Build the data and tooling that support liquidity management.
• Model yield-bearing and financing instruments in the ledger, from simple to complex.
• Write thorough tests and review your teammates' code.

Skills

Kotlin

Java

PostgreSQL

Double-entry accounting

Ledger systems

RabbitMQ

Distributed systems

AI-assisted development

Remote work

Tools

Spring Boot

Job description

Caliza is seeking a Senior Software Engineer for the Accounting & Treasury team to design and own the ledger, reconciliation, and fiat–stablecoin conversions across rails. Our settlement ecosystem requires precise money handling and auditable trails, with rapid iteration in a remote startup.

You will work closely with finance, compliance and operations to build resilient systems in Kotlin and Spring Boot, enabling scalable liquidity management and cross-border payments.