Headline

Staff Backend Engineer | Distributed & Event-Driven Systems | Agentic AI (RAG, LangGraph) | 10+ yrs · ~25% cost cut (IVR calling) · 10-25x faster search (Postgres)

About

Backend Engineer with 10+ years of experience designing and delivering event-driven distributed systems and production backend infrastructure at scale. At Khatabook, cut collections telecalling cost by ~25% by owning IVR and AI calling automation across a distributed multi-tenant SQS pipeline, engineered an Underwriting task platform from scratch that reduced loan review turnaround from days to ~1 hour same-visit close — unlocking ~4–5 additional loan clearances per field agent per day — built shared query infrastructure adopted across Iris lists and allocation engineering teams. At Toppr (acquired by Byju's), led a 3–5 engineer team scaling India's #1-ranked Q&A product to 35M MAU — outperforming Byju's own competing product and directly contributing to the acquisition. As Principal Engineer at Byju's post-acquisition, led performance engineering for Byju's own QnA product, which shared Toppr's earlier performance bottlenecks (sub-1.3s desktop, 2.7–3.0s mobile Speed Index) — and drove technical alignment across three independently-acquired engineering orgs through AskAnExpert.

Location

Bengaluru

AI stack

langfuse

langgraph

mcp

railway

Ragas

Vercel AI SDK

Work experience

SDE-3 at Khatabook, Dec 2023 - May 2026 · 2 y 5 mo, Bangalore

Principal Engineer at BYJU'S, Jul 2022 - Mar 2023 · 9 mos, Mumbai

Technical Lead at BYJU'S, Sep 2020 - Jun 2022 · 1 yr 10 mos, Mumbai

Senior Software Engineer at Turtlemint, Oct 2019 - May 2020 · 8 mos, Mumbai Metropolitan Region

Software Engineer at Turtlemint, Dec 2018 - Sep 2019 · 10 mos, Mumbai

Education

Bachelor of Technology, Computer Engineering, I. K. Gujral Punjab Technical University

Public links

github: https://github.com/kvedantmahajan

leetcode: https://leetcode.com/kvedantm