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Staff Software Engineer (MERN + LangChain)

  • Remote, India
  • Full-time
  • ₹45-65 LPA

We built an AI that runs the first round of a job interview out loud. It asks the questions, listens, follows up on what the candidate actually said, and shows the evidence behind every score.

InterviewSparrow builds each interview from the candidate's resume and the job description. The candidate speaks, not types, and shares their screen for the part where they show their work. About three minutes after the call ends, the report is ready: a verdict, seven scored dimensions, and under every score the exact sentence the candidate said. Candidates use it to practice. Hiring teams use the same interview as their AI first round.

The product is live. We're hiring a Staff Software Engineer to lead the engineering team that takes it further.

What you'll do

  • Lead a team of 3 engineers. Set the technical direction, review code, unblock people and help them grow.
  • Own the architecture across the stack: React on the front end, Node and Express services, MongoDB.
  • Build the LLM layer with LangChain: interview flow, follow-up questions, scoring against rubrics, pulling evidence from transcripts, and the evals that keep all of it honest.
  • Keep live voice sessions fast and stable, and get every report out on time.
  • Decide what to build next with the product side, and say no when something isn't worth it.

What you bring

  • You have built and run production apps on MongoDB, Express, React and Node.
  • You have shipped LLM features to real users with LangChain or LangGraph, and you know where prompts break.
  • You have led or mentored engineers, and you still write code most days.
  • You make trade-off calls and explain them in plain words.
  • Nice to have: real-time audio or WebSockets, evals for LLM output, AWS.

There's no years-of-experience bar. We care about what you've built and who you've led, not how long it took.

What you'll get

  • ₹45-65 LPA.
  • Fully remote, anywhere in India.
  • A live AI product, and a small team where your decisions ship the same week.
  • Real ownership of how the engineering team works.

Curious what you'd be building? The sample report is open to anyone. Bring one thing you'd change to our first call.