Job Posting: Senior Backend Engineer at Sendblue (Y Combinator Startup)
By
rhaber
A baker's-dozen of insight crammed into one ring.
Summary
The article is a job posting for a Senior Backend Engineer at Sendblue, a Y Combinator startup. The role involves leading feature development across Node.js, React, and PostgreSQL stacks, ensuring the platform remains fast, scalable, and reliable. Responsibilities include shipping high-quality code, optimizing databases, building APIs, and improving system observability. The ideal candidate has 4+ years of full-stack experience, expertise in PostgreSQL and Redis, and strong system design skills. Nice-to-have qualifications include experience with Next.js, TypeScript, and real-time messaging systems.
Key quotes
· 4 pulledShip high-quality code across Node.js/Express backends and React frontends.
Architect and optimize PostgreSQL databases: schema design, complex SQL, and performance tuning.
Build dynamic, high-performance React components using hooks and modern tooling.
Design and implement robust REST and real-time APIs (WebSockets).
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