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Backend Software Engineer

Raydar
San Francisco, California, United States Posted Nov 7, 2026
Full-time

About this role

About the company

Our client is a fast-growing financial technology company.

The role

Raydar is recruiting for this role on behalf of our client. Own the backend services that handle payment flows and identity checks as a product moves into live production use. The work covers security, reliability, compliance controls and performance, with an emphasis on correctness and recoverability.

What you'll do

  • Build protective controls into the code itself, keeping sensitive card data scope small and covering credentials, permissions, activity records and attack analysis.

  • Manage cloud infrastructure as code, along with automated build and deployment pipelines, staged releases and rollback procedures.

  • Ensure payment authorization, settlement and reconciliation logic is safe to retry, traceable and easy to recover.

  • Set and monitor reliability targets, add instrumentation, prevent outages and write clear operational runbooks.

  • Improve response times on the transaction path and reduce the cost of each transaction.

  • Set architecture direction, write production code and take on-call responsibility for the systems you ship.

  • Requirements

  • What we're looking for

  • Experience building backend systems that other engineers and teams rely on.

  • Solid grasp of keeping operations correct when things fail, including repeat-safe requests, retries, distributed state and failure modes.

  • Everyday safety habits: limiting access to what is needed, handling credentials with care, keeping activity records and anticipating how a system could be attacked.

  • Hands-on experience with cloud infrastructure and infrastructure as code.

  • Proficiency in TypeScript or Python.

  • Clear written communication about incidents, root causes and fixes.

  • Availability to work roughly six days a week, Sunday through Friday.

  • 2 to 5 years of relevant experience.

  • Bonus points

  • Experience with AWS.

  • Benefits

  • Compensation and benefits

  • Base salary: USD 140,000 to 300,000 per year

  • Health, dental and vision coverage

  • Location and work model

  • San Francisco, California, United States

  • On-site

  • Roughly 6 days a week (Sunday through Friday), with flexibility on weekends

  • Full-time

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