Remote Backend Engineer - Payments & Fintech APIs

Axra; United States; Remote; USD 93,000 - 119,000; Full time

Benefits offered by this job

Remote-first work across countries

Learning budget

Health coverage for employees and deps

Stock options

Job summary

Axra is seeking a senior backend engineer to build and operate services for international transfers, currency conversion, account management, and payments. You will own services from design through production, emphasizing correctness, security, and reliability in a distributed financial platform.

You will design APIs and microservices, integrate with payment and banking partners, add tests and observability, and mentor junior engineers in a remote-first, multi-country setup.

Qualifications

• Four+ years building production backend systems at scale.
• Strong experience with Node.js or Go.
• Deep knowledge of PostgreSQL including schema design and tuning.
• Experience developing and integrating payment APIs.
• Understanding distributed system patterns: queues, retries, idempotency, eventual consistency.
• Security awareness including common injection, CSRF and auth risks.

Responsibilities

• Design APIs, microservices, and background workers for transfers and account services.
• Integrate with payment, banking, and FX partners.
• Add tests, monitoring, and SLIs to keep systems observable and reliable.
• Partner with compliance to address regulatory needs.
• Review code, shape architecture, and support junior engineers.

Skills

Backend development

Node.js/Go

Distributed systems

Security awareness

Testing & observability

Tools

PostgreSQL

Redis

Message queues

Event-driven systems

Job description

Axra is seeking a senior backend engineer to build and operate services for international transfers, currency conversion, account management, and payments. You will own services from design through production, emphasizing correctness, security, and reliability in a distributed financial platform.

You will design APIs and microservices, integrate with payment and banking partners, add tests and observability, and mentor junior engineers in a remote-first, multi-country setup.