Sai Kumar Ganji

Lead Software Engineer · Bengaluru, India

I build platforms that hold under load.

I’m Sai. For ten years I’ve worked on the parts of a product that have to survive traffic: authentication, payments, registration, migrations. Currently leading foundation work at Goldcast, now part of Cvent.

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Selected work

Goldcast (now Cvent) · Lead Software Engineer · 2025–present

Authentication and registration at event scale

  • Architected GC Auth, replacing AWS Cognito to carry growing event traffic and future product needs.
  • Rebuilt the registration pipeline from 3,000 to 60,000 requests per minute; enterprise clients with 100k events and 1M+ transactions went from hours of processing to minutes.
  • Led the migration of GC Auth into Cvent infrastructure after the acquisition, and cut customer escalations and PagerDuty incidents through better reliability and observability.

Python · Django · Go · AWS · Postgres · New Relic

Embibe · Senior Product Engineer (Lead) · 2023–2025

Payments, invoicing and platform security

  • Delivered B2C and B2B payment ecosystems: orders, payments, invoicing, GST compliance and analytics.
  • Led organisation-wide PII encryption and refactored core services for scale, enterprise integrations and localised experiences.

Java · Spring Boot · Vert.x · Kafka · Postgres

Intuit · Senior Software Developer · 2021–2022

Report migration for QuickBooks Online

  • Designed a framework migrating custom reports from QuickBooks Desktop to the cloud, so millions of customers kept their reports without rebuilding them.
  • Raised migration success from 85% to 97% by analysing failures and fixing the approach.

Java · Oracle · Splunk

Jio Platforms · Software Developer 2 · 2019–2021

Payment engine for AjioBusiness and JioMart

  • Owned payments, refunds, returns, cancellations, credit orders and cash-on-delivery integrations.
  • Redesigned legacy services and data models, cutting critical job runs from 30–40 minutes to under a minute; led a team of 2–3 engineers.

Java · Spring Boot · Kafka · Oracle

Zetwerk · Full Stack JavaScript Developer · 2019

Manufacturing project management platform

  • Built the platform end to end on Node.js, MongoDB, React and Angular, with Redis caching, RabbitMQ async processing and a 3-node MongoDB cluster; moved compute-heavy workloads to Go.

Node.js · MongoDB · React · Angular · Go · AWS

Aruba Networks (HPE) · Software Engineer 2 · 2016–2019

Aruba Central: management, onboarding, monitoring

  • Built networking management and monitoring, enterprise SAML SSO and customer onboarding; won Hackfest, a 24-hour hackathon, for an analytics dashboard on Aruba Central.

Node.js · Angular · Python · Celery · Kubernetes

The work in numbers

60,000
requests per minute, up from 3,000
97%
migration success, up from 85%
<1 min
batch jobs, down from 40 minutes
10 yrs
across six companies

Where I’ve worked

Goldcast (Cvent)
Lead Software Engineer · 2025–present
Embibe
Senior Product Engineer (Lead) · 2023–2025
Intuit
Senior Software Developer · 2021–2022
Jio Platforms
Software Developer 2 · 2019–2021
Zetwerk
Full Stack JavaScript Developer · 2019
Aruba Networks (HPE)
Software Engineer 2 · 2016–2019

About

I like the unglamorous work: dependency analysis, observability, developer tooling, the cutover plan. I mentor engineers, review architecture, and use AI tools across the SDLC to move faster without lowering the bar. The measure is simple: fewer incidents, faster jobs, happier customers.

Based in
Bengaluru & Hyderabad, India
Education
B.Tech CSE, IIT Guwahati, 2016
Recognition
Hackfest winner, Aruba
Off screen
Travelling light, time with family, reading

Let’s talk

I keep email and phone off the page. The fastest way to reach me: