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Senior Backend Engineer - Grant Underwriting and Payment

Kikoff · San Francisco · On-site

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About Kikoff

Kikoff's credit building app is the the fastest way to build credit safely, with plans from $5/month. Backed by Lightspeed.

About the role

We're looking for a Senior Backend Engineer to join our Grant Core team and help us scale. You'll be working on the critical systems that power our underwriting decisions, payment processing, and collection strategies.

What they're looking for

  • 5+ years of experience with modern backend frameworks and a track record of building and scaling production systems
  • Strong systems design skills - you've architected and shipped distributed systems that handle high throughput and maintain data consistency
  • Production experience with background job processing systems (Sidekiq, Resque, or similar)
  • Solid understanding of database optimization, caching strategies, and performance tuning
  • Experience with payment systems, financial infrastructure, or regulated environments (ACH, card processing, real-time payments)
  • Track record of making infrastructure decisions that balance technical excellence with business pragmatism
More about this role

Kikoff: The Fintech Powering Financial Security at Scale

Kikoff is a profitable, pre-IPO fintech company on a mission to empower everyone to achieve financial security. With record revenue growth in 2025 and a unicorn valuation, we've built a suite of products that help millions of people build credit, access liquidity, and save money.

We're scaling fast. Join us if you want to build something meaningful and help millions of people move forward financially.

This is a consumer fintech startup, and you will be working with serial entrepreneurs who have built strong consumer brands and innovative products. We value extreme ownership, clear communication, a strong sense of craftsmanship, and the desire to create lasting work and work relationships. Yes, you can build an exciting business AND have real-life real-customer impact.

Grant is revolutionizing financial access through our intelligent cash advance product. We're solving real customer pain points by providing fast, fair access to earned wages when life happens, without the predatory fees common in the industry. Our business model is profitable while maintaining customer-first values, and we're experiencing rapid user growth as...

Read the full posting on Kikoff's site ↗

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