Senior Backend Engineer - Node.js
First seen by Alion on Oct 24, 2026.
Roles & Responsibilities :
What You'll Do :
- Design and build the core Node.js services and REST APIs from scratch, built to scale as we grow.
- Own system design end to end : service boundaries, data flow, caching, queueing, failure modes, and scale.
- Ship AI/ML-powered features, including LLM and agentic capabilities.
- Use LLMs and agentic tooling across the SDLC, from design and code generation to testing and debugging.
- Model data and optimize SQL/NoSQL queries for performance; integrate with third-party platforms.
- Debug production issues, own reliability, and set the engineering standards the rest of the team will grow into.
Ideal Candidate :
- 7+ years of hands-on Backend Engineering experience using Node.js building production-grade systems for B2C products at meaningful consumer scale.
- AI-native in their own engineering workflow : already uses LLMs and agentic tooling across the SDLC.
- Owned backend architecture end to end, including greenfield builds.
- Experience in B2C product companies / startups at meaningful consumer scale (WealthTech, FinTech preferred).
- Experience building and shipping products that use LLMs and agentic workflows to end users.
- B.Tech or Dual Degree from a Tier-1 Engineering Institute (waived for candidates from unicorn or $500M+ valuation product companies).
- Comfortable with fixed pay matched to current CTC plus ESOPs worth 20 to 30% of total CTC (budget up to ?90L total CTC).
- Comfortable in a seed-funded WealthTech startup environment with shifting priorities.
- Founding tech team role. Work from office, 5 days a week.
Preferred :
- Previous founding engineer or early-team startup experience is a plus.
Skills
Node.js, Generative AI, Agentic AI, System Architecture, RESTful API, Backend Architecture