> Markdown version of [/jobs/ext/4644389-senior-backend-engineer-ts-apis-ai-tools-remote](https://www.wearedevelopers.com/jobs/ext/4644389-senior-backend-engineer-ts-apis-ai-tools-remote). 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 Backend Engineer | TS, APIs, AI Tools, Remote - **Company:** Agileengine, Llc. - **Location:** Madrid, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Node.Js, SQL Databases, TypeScript, Caching, Backend, Stripe, Graphql, Discord, Restful APIs - **Published:** November 9, 2026 - **Apply:** https://www.jobleads.com/es/job/senior-backend-engineer-ts-apis-ai-tools-remote--madrid--e094bc41f71fbe3f1d14cb99ef443cd3f ## About the Role The role requires 5+ years of backend development, strong TS type skills, and experience with GraphQL/REST APIs. ## Description AgileEngine is seeking a Senior Backend Engineer to build and scale the backend of a high-traffic gaming companion site. You will work with TypeScript on Node.js, design SQL schemas, caching strategies, and analytics pipelines while integrating Stripe, Discord, Blizzard, IGDB, Steam and YouTube APIs. The role requires 5+ years of backend development, strong TS type skills, and experience with GraphQL/REST APIs.