Senior Full Stack Engineer (JavaScript/TypeScript)

About Rumi Rumi is building a more transparent and authentic writing and learning environment for the AI era. We help institutions guide AI use at the assignment level, supporting learning-focused workflows instead of blanket enforcement.

The role Join our engineering team to architect a real-time, transparent writing environment. You’ll build end-to-end features—from high-performance frontends to robust backend services—delivering a seamless experience for classrooms at scale.

What you’ll do

• Ship full-stack product features in a JS/TS stack (React + Node.js)

• Design APIs, data models, and backend services that are reliable and scalable

• Build responsive, fast UI experiences that feel great in real-time workflows

• Improve system observability, performance, and reliability (metrics, tracing, on-call as needed)

• Collaborate with product/design to turn educator needs into usable features

What we’re looking for

• 5+ years professional experience in JS/TS (Node.js + React)

• Strong product sense: you care about UX, adoption, and iterative shipping

• Experience building reliable systems (testing, CI/CD, monitoring, performance)

• Ability to work across frontend and backend without handoffs

• Clear communication and comfort making technical tradeoffs

Nice to have

• Cloud experience with GCP and/or AWS (deployments, managed services, observability)

• Postgres, Redis, queues, or event-driven architectures

• Work in education, compliance/privacy-adjacent environments, or B2B SaaS

Benefits

• Competitive salary

• Comprehensive health insurance

• 15 days PTO annually

• Flexible working hours

• Redwood City office (in-person preferred; remote possible)

• Professional development support