> Markdown version of [/jobs/ext/4180590-backend-software-engineer](https://www.wearedevelopers.com/jobs/ext/4180590-backend-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Backend Software Engineer - **Company:** Affirm, Inc. - **Location:** San Francisco, CA, United States (Remote available) - **Salary:** $165,000.0 - $225,000.0 - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Github, Python (Programming Language), MySQL, Redis, Backend, Kotlin, Web Api - **Published:** October 5, 2026 - **Apply:** https://startup.jobs/software-engineer-ii-backend-decisions-orchestration-affirm-2-10318498 ## About the Role * Execute. You have a proven track record of developing, testing, and shipping high-quality software at scale * Collaborate. You communicate clearly both verbally and in writing. If anything, you trend towards over-communication * Build Teams. You grow with engineers around you through sharing your learnings and providing feedback to your peers that will help the team grow * Customer-centric mentality. You are empathetic to the user experience and thoughtful about what we can do to make it better * This position requires either equivalent practical experience or a Bachelor's degree in a related field Tech You Will Use * Python * Kotlin * RPC * Redis * MySQL * AWS * Github ## Description We are seeking a Backend Software Engineer to build out financial products and features providing new levels of accessibility and flexibility to our users. You will work in a fast-paced team environment, designing and implementing new API's and microservice interfaces to manage every users' transaction with Affirm. You will also use your technical skillset to find opportunities to improve the performance and reliability of the systems that drive the user journey through purchasing with Affirm. Come join us as we build a beloved, lasting financial services brand predicated on honesty and trust. It's going to be an amazing ride! What you'll do * Work with technical leaders in the team to design and implement insightful forward-looking approaches that go beyond the direct team and solve large open-ended problems * Actively own components of checkout systems and define their long-term health, while also improving the health of surrounding systems * Collaborate with engineers within our team and across the organization to build the next generation of the checkout platform * Learn and improve engineering standards, tooling, and processes across the checkout platform