Aparna Malini Selvam

Director of Engineering at Cognizant · Erlang/OTP, Go

Cognizant

Hyderabad, India · IST (UTC+5:30)

11+ years experience

BITS Pilani

English, Hindi, Telugu

Co-founder

Messaging unavailable

Overview

Based in Hyderabad. I lead real-time systems at Cognizant. Mentored 14 engineers through their first promotion. Led the migration of 30 services to low-latency systems. Before that: Kotak Mahindra Bank and Visa.

Good reasons to reach out

People who want to build this with me
Working sessions on WebSockets
Second opinions on Elixir decisions
Thoughtful intros to people in my field

Please don't message about

Agency or outsourcing pitches
Crypto token projects

Replies on weekends

Skills

WebSocketsGoErlang/OTPElixirlow-latency systemsRedis

Co-founderLooking for a co-founder

closes in 3 months

Looking for a go-to-market co-founder for loyalty programmes for property managers

The idea: Loyalty programmes for property managers
Stage: Idea
I bring: 13 years in real-time systems
Looking for: Operator who has scaled a team
Commitment: Full-time now
Location: Hyderabad or remote

I bring 20 years of real-time systems (currently Cognizant). Ideally you've shipped B2B software. Incorporated, self-funded so far.

Hyderabad, India · remote OKerlang/otplow-latency systemsgo

Open

Experience

Director of Engineering
Jan 2025 - Present
Cognizant · 1 yr 9 mo · Full-time · Hyderabad, India
- Wrote the Elixir service that now handles 42 million requests a day.
- Shipped 13 launches on the real-time team without a rollback.
Engineering Manager
Oct 2023 - Jan 2025
Kotak Mahindra Bank · 1 yr 3 mo · Full-time · Hyderabad, India
- Led the migration of 35 services to Go.
Software Engineer
Jan 2022 - Oct 2023
Visa · 1 yr 9 mo · Full-time · Hyderabad, India
- Moved 68% of real-time traffic off a legacy monolith without a customer-facing incident.
- Cut p99 latency on the real-time services from 732ms to 130ms.
Principal Engineer
Aug 2018 - Dec 2021
Razorpay · 3 yr 4 mo · Full-time · Hyderabad, India
- Backed 23 founders at pre-seed and seed.
Staff Software Engineer
Jun 2015 - Aug 2018
Bosch · 3 yr 2 mo · Full-time · Hyderabad, India
- Cut p99 latency on the real-time services from 509ms to 54ms.
- Shipped a rewrite that took build times from 19 minutes to under 6.

Projects

Conference talk: lessons from real-time

2026

What went wrong and what worked while scaling real-time systems.

Real-time systems benchmark

2024

Reproducible benchmarks comparing low-latency systems and Erlang/OTP on real workloads.

References

No references yet.

Education

BITS Pilani
B.E., Computer Engineering
2001 - 2005

Details

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