Kunal Mahajan

CTO

Noida, Uttar Pradesh, India7 yrs 7 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Led migration of a large monolith with zero downtime.
Built internal LLM assistant to streamline workflows.
Drove ISO 27001 readiness for enhanced security.

Stackforce AI infers this person is a Backend Developer with expertise in SaaS and security compliance.

Contact

kunal.mahajan@squadstack.com +918860550005 LinkedIn

Skills

Core Skills

Backend DevelopmentTeam LeadershipSecurity Compliance

Other Skills

AWSCeleryCompetitive CodingData StructuresDjangoISO 27001PostgreSQLPythonRabbitMQRedisWeb ScrapingZoomn8n

About

I build backend platforms that are easy to reason about and boring in the best way on release day. As a Tech Lead, I work with PMs and a 4–5 engineer team to shape scope, guide solutions, and keep reliability front and center. Few Highlights: - Built SquadstackGPT, an internal LLM assistant, to answer product questions quickly and reduce time spent hunting for context. - Implemented an adaptive number‑replacement system that detects spam risk, low network quality, or upstream outages (operator, region, trunk) and intelligently selects alternate numbers to maintain successful outreach. - Setup on-call process in the org. - Migrated a huge monolith codebase from Python 2 to Python 3 - Helped the org in getting ISO-27001 certification.

Experience

Squadstack

3 roles

Technical Lead

Promoted

Apr 2024 – Present · 1 yr 11 mos · Noida, Uttar Pradesh, India

Tech Lead at Squadstack leading a 4–5 person backend team focused on simple designs and calm, predictable releases.
I plan roadmaps with PMs/founders, guide high‑level solutioning, and simplify legacy areas to reduce overhead and speed delivery.
Shipped an intelligent, rules‑driven number‑replacement layer to keep outreach reliable during spam flags, low connectivity, or provider/region/trunk issues.
Built SquadstackGPT, an internal LLM assistant that answers product questions and streamlines daily workflows, reducing manual support and context‑switching.
Kept standards steady—design reviews, on‑call readiness, and SLIs/SLOs—so the team moves fast without surprises.

PythonDjangoRedisRabbitMQPostgreSQLCelery+2

Product Engineer - 2

Promoted

Oct 2021 – Apr 2024 · 2 yrs 6 mos · Noida, Uttar Pradesh, India

Product Engineer II at Squadstack focused on simplifying legacy areas, reliability practices, and secure delivery.
Led the Python2→Python3 migration of a large monolith with zero downtime and full test coverage.
Set up org-wide on‑call with clear runbooks and escalations.
Drove ISO 27001 readiness by hardening AWS, creating architecture diagrams, and coordinating VAPT to closure.
Built an agent training platform with Zoom integration (session creation, agent assignment, reminders, one‑tap join).
Set up a self‑hosted n8n rule engine to automate workflows.
Built a Mock Call certification system to standardize onboarding and quality.

PythonAWSISO 27001n8nZoomBackend Development+1

Product Engineer

Feb 2020 – Sep 2021 · 1 yr 7 mos · Noida, Uttar Pradesh, India

Product Engineer I at Squadstack focused on Python/Django backend and data-driven features.
Improved the billing dashboard by denormalizing tables and tuning read-heavy queries, speeding up analysis.
Shipped multi-channel outreach (Call, SMS, WhatsApp).
Built a voice-quality dashboard for operational insights.
Cut CircleCI build time from 45min to 10–12min via parallelization, caching, and test strategy, and documented the approach in a published engineering blog.

PythonDjangoData StructuresBackend Development