nm
00 · basecamp

Open to backend and AI engineering roles, remote

Narendra Manglani

Backend engineer. I build the parts of a product users never see and always feel: search infrastructure, data pipelines, and LLM systems that hold up under real traffic.

About 4.5 years across Wayground (Quizizz), Apollo.io and Walmart, mostly in Go and Python. Recently I've been going deep on agentic systems, both at work and in my own projects. When I'm away from a keyboard I'm usually on a trail, under water, or on a motorbike.

The Dhauladhar range above Bir, Himachal Pradesh, at sunset, with paragliders drifting toward the setting sun
Bir, Himachal Pradesh · off the Billing launch, gliding the winter line into the sunset

Selected work

01 · shipped

Zero-downtime search migration

Wayground · 2025–26

Moved a critical, unowned indexing pipeline into an owned, observable service and re-indexed 120M records with no maintenance window. Reads go through an alias, so cutover and rollback are each a single atomic swap.

120M records0 downtime1-step rollback

Go · MongoDB CDC · Airflow · S3 · SQS · OpenSearch

OAuth 2.0 + dynamic client registration for AI tools

Wayground · 2026

Led a cross-team build that opened the platform to ChatGPT, Claude and Superhuman over MCP. Encrypted opaque tokens in Redis instead of JWTs so access can be revoked instantly, with PKCE required for every client. Once registration existed, the Claude integration took under a week.

3 integrations~8 weeks0 auth regressions

Go · Redis · OAuth 2.0 · PKCE · MCP

District intelligence for sales

Wayground · 2025–26

An agentic pipeline that verifies CRM contacts and reads public school-district documents (board minutes, improvement plans) with OCR and LLM extraction. It produces structured signals about curriculum needs, competitors and decision makers, and a dashboard the sales team used live on calls.

45K / 70K contacts verified3 deals in month one

Python · LLM extraction · OCR · Playwright · Qdrant · BigQuery

13-stage LLM content pipeline

Wayground · 2025

Took an ML proof of concept to production as a pipeline where every stage retries independently over SQS. Cut LLM spend with model tiering and by replacing some LLM calls with rules. Separately, reworked a core API with cursor pagination to bring P95 latency down 70%.

−70% P9525 US states live

Python · Go · SQS · MongoDB

First-party intent

Apollo.io · 2023–25

Built one of Apollo's most-requested features end to end: resolving anonymous website-visitor IPs to companies, aggregating intent signals, and indexing them beside a 256M-record search index without touching it. Taken from proof of concept to production.

1M+ req / week~20% → 40–50% match rate

Ruby on Rails · MongoDB · Elasticsearch · Sidekiq · Snowflake

Recent builds

02 · side trips

Things I've built for myself this year, mostly to see how far agents can go when they're built carefully.

  • Cited travel planner

    An AI trip planner where every factual claim carries its source page and the date it was read. Visa rules come only from official government sites; routes and stops are researched live and cached.

    TypeScript · Next.js · web-research agent

  • Recruiter outreach pipeline

    Harvests roles, ranks them against my profile, and spends paid contact lookups only on the best leads. It drafts emails into a queue I approve by hand, because nothing sends without me.

    Python · SQLite · MCP · Gmail API

  • Voice appointment agent

    Books appointments over a phone call, streams a live monitoring dashboard, lets a human take over mid-call, and warm-transfers with a spoken summary.

    LiveKit · Python · Deepgram · Cartesia · Next.js

  • Group-sales proposal agent

    A hotel sales agent that qualifies an enquiry, recommends a programme and closes on a line-item proposal. Each property's behaviour lives in a config you edit in the browser.

    Node · tool-calling LLMs · OpenRouter

  • AI short-video generator

    A workflow–agent–tool pipeline that turns a topic into a captioned short video.

    Python · workflow-agent-tool pipeline

Experience

03 · route
  1. 2025–26Wayground (formerly Quizizz) · SDE II, backend: search & discovery, GTM
  2. 2023–25Apollo.io · SDE II, backend: buyer-intent data
  3. 2022–23Walmart · Software engineer: transactional comms tooling
  4. 2021Games24x7 · Intern: MySQL sharding with Vitess
  5. 2018–22BIT Mesra · B.Tech, Electrical & Electronics

Competitive programming on the side: CodeChef 5★ (max 2090), Codeforces Specialist, ICPC 2020 Asia-Amritapuri regionalist.

Off the clock

04 · elevation

I'm happiest learning something by doing it badly at first. A few of those things:

  • Backpacking Slow trips, one bag, local transport. I plan them myself (hence the travel planner above).
  • Scuba Open Water certified. I learned to dive in Koh Tao, Thailand.
  • Running Early-morning runs around Bengaluru. It's where I untangle most problems.
  • Hiking Weekend treks in the Western Ghats whenever the weather allows.
  • Motorbike A Triumph Scrambler 400X. Most of my thinking happens on the highway to Pondicherry.
  • Music Learning guitar, aggressively. Something loud is always playing while I debug.

Contact

05 · summit

If you're building something with hard data, search or agent problems in it, I'd like to hear about it.

narendramanglani04@gmail.com

Bengaluru, India (IST). Comfortable overlapping with US and EU hours. I usually reply within a day.