> Markdown version of [/jobs/ext/4629377-senior-software-engineer-fintech-platform-builder](https://www.wearedevelopers.com/jobs/ext/4629377-senior-software-engineer-fintech-platform-builder). 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). --- # Senior Software Engineer - Fintech Platform Builder - **Company:** SYDECAR, INC. - **Location:** San Francisco, CA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Microsoft Platform Builder, TypeScript, ReactJS - **Published:** November 7, 2026 - **Apply:** https://www.juju.com/job/28_25197_810e64d7df0dafb4498af63bcfc9fbef ## About the Role The ideal candidate has over 5 years of experience, strong problem-solving skills, and a track record of shipping well-tested features. ## Description In this role, you will design full-stack solutions using TypeScript and React, mentor junior engineers, and contribute to a high-collaboration culture.