Mathan Raj Krishnan

Mathan Raj Krishnan

Lead Consultant — Dharmapuri, TN

889-246-1021 · [email protected]

Lead Consultant · 14+ years · 3 active clients

I connect business needs to engineering decisions — and build systems that keep running.

Web development, financial platforms, and self-hosted live streaming infrastructure — a Vimeo alternative built for control and low latency. Currently leading engineering at DNC Chits while consulting for Zinrai and Hitbullseye.

Hire me See my work
14+
Years experience
110 TB
Video migrated in 45 days
30+
Countries (Decathlon)
<1s
Live stream latency
10,000+
Concurrent exam students

What I Do

⚙️

Backend & Platform Engineering

PHP, Python, Symfony, Node.js, PrestaShop, Drupal. I design systems that are simple to operate and built to last.

📡

Live Streaming & Video

WebRTC, SRS5, Red5Pro, Antmedia, Dolby.io, JWPlayer. From managed services to self-hosted sub-1s latency platforms.

🚀

DevOps & Team Leadership

AWS, Docker, CI/CD, infrastructure-as-code. Led 10+ engineers across backend, design, and DevOps through multi-country rollouts.

Experience

Lead Consultant & Developer

DNC Chits — Dharmapuri, TN · March 2026 to Present · Primary role

  • Leading a 5-person engineering team building a full-stack chit fund management ERP — covering the complete lifecycle from group formation and subscriber onboarding through auctions, settlements, disbursements, and legal tracking.
  • Architected on Laravel 12 / GCP / Kubernetes with MySQL, Redis, Elasticsearch, and Vue.js; deployed across multiple client environments (DNC, SKST, Jeevanmahendra).
  • Built a banking integration layer for UPI, IMPS/RTGS transfers, virtual account management, and WorldLine reconciliation — enabling automated settlement runs with minimal manual intervention.
  • Designed a multi-channel notification system (SMS, WhatsApp, Email, Slack) and integrated an AI assistant (MCP server for Claude) for natural-language querying of platform data.
  • Responsible for CI/CD pipeline (Cloud Build + Bitbucket), Kubernetes deployment, and cross-branch reporting across 20+ specialized financial report types.

Technical Consultant

Zinrai — Remote · June 2025 to Present · Concurrent consulting · 3-person team

  • Consulting on the design and operation of a self-hosted WebRTC streaming platform targeting sub-1s latency for 600 concurrent viewers across 6 simultaneous live streams.
  • Working with a 3-person team on SRS5 origin/edge architecture, Python/FastAPI auth service (stream key validation, DVR pipeline, S3 upload), and server hardening for production launch.
  • Advising on TURN server deployment (Coturn), edge scaling strategy, and infrastructure-as-code practices.

Technical Consultant

Hitbullseye.com — Remote · Ongoing · Concurrent consulting · 2-person team

  • 2-person consulting team providing ongoing engineering support for the exam platform and Drupal content platform built during the Cybrain engagement.
  • Responsible for performance, reliability, and feature improvements across the 10,000+ concurrent student exam system and the 100,000+ article multi-domain Drupal blog.

Lead Technical Consultant

International Markets Live Inc. — Remote · 09/2020 to 03/2025

  • Migrated 110 TB of video from Vimeo to DigitalOcean in 45 days — sole engineer; built a Python real-time monitoring dashboard to track per-video status, detect silent failures, and retry broken uploads with parallel execution.
  • Researched and implemented WebRTC streaming (Red5Pro, Antmedia); progressed to building a self-hosted SRS5 platform with sub-1s glass-to-glass latency for 600 concurrent viewers across 6 simultaneous streams.
  • Led DevOps for live-streaming and user platforms (ECS, Node.js, PHP, MongoDB); automated CI/CD and adopted infrastructure-as-code for safer, faster releases.
  • Built Matomo-based analytics pipeline to replace third-party tracking and bring data ownership in-house.

Tech Lead / Senior IT Consultant

Decathlon Sports Private Limited — Bangalore, India · 06/2017 to 08/2020

  • Led a cross-functional team of 10+ engineers and designers through a 3-year rollout covering 30+ countries — owned delivery timelines, stakeholder communication, and localized launches across multiple markets.
  • Served as core architect during the migration from a PrestaShop monolith to microservices; defined service boundaries, integration patterns, and operational practices alongside senior architects.
  • Built and operated a coupon microservice (Symfony/PrestaShop) with robust business logic and sub-200ms API responses.
  • Designed ETL pipelines and a Product Information Management (PIM) system to centralize and normalize large-scale product data across all markets.

Technical Lead

Cybrain Software Solutions Pvt. Ltd — Bangalore · 06/2011 to 06/2017

  • Managed 50+ web projects across CMS, ecommerce, and custom platforms; mentored junior developers and led AWS deployments.
  • Built foundational versions of Hitbullseye.com — exam platform and Drupal blog — which continue to operate and scale today.
  • Delivered platforms using PrestaShop, WordPress, and custom PHP stacks; authored an internal jQuery guide to standardize UI patterns across the team.

Selected Projects

DNC Chits — Chit Fund Management ERP

3 clients · 5-person team

DNC Chits · March 2026–Present · Primary engagement

  • Leading a 5-person team building a full-stack chit fund ERP managing the complete lifecycle: subscriber onboarding, group formation, auctions, collections, settlements, prize money disbursements, and legal tracking.
  • Architected on Laravel 12 with GCP / Kubernetes (GKE) and CI/CD via Cloud Build — deployed across three production client environments (DNC, SKST, Jeevanmahendra).
  • Built banking integration (Hypto UPI/IMPS/RTGS, virtual accounts, WorldLine reconciliation) enabling automated settlement runs with minimal manual steps.
  • Integrated Elasticsearch for enterprise search, multi-channel notifications (SMS, WhatsApp, Email, Slack), and an AI assistant via MCP server for natural-language data queries.
  • Implemented 20+ specialized financial reports, event-driven job queues (high/critical/low priority), and policy-based authorization across all business workflows.
Laravel 12 PHP Vue.js GCP / GKE Kubernetes MySQL Redis Elasticsearch Banking API

Video Migration Platform

110 TB · 45 days

International Markets Live · 2023

  • Sole engineer on a 110 TB migration from Vimeo to DigitalOcean — no existing tool or template to work from.
  • Built a Python real-time dashboard to track per-video status, detect failures, and retry broken files automatically.
  • Identified and resolved silent failures: corrupt videos, format incompatibilities, bandwidth throttling mid-transfer.
  • Implemented parallel upload execution to meet the 45-day deadline without data loss.
Python DigitalOcean Parallel Processing Real-time Dashboard

WebRTC Live Streaming — zinrai.live

<1s latency · 600 viewers

International Markets Live · 2024

  • Designed and built a self-hosted WebRTC streaming platform replacing managed video services — reducing per-stream cost significantly while retaining full control over latency, auth, and recording.
  • SRS5 media server with origin + edge architecture; each edge adds ~300 viewer capacity with zero code changes — horizontal scaling by adding nodes.
  • Python/FastAPI auth service: stream key validation, one-time viewer tokens, automatic state recovery on restart, hard timeout enforcement, ghost stream detection, DVR-to-MP4 via ffmpeg, and S3 upload.
  • Deployed Coturn TURN server for ICE relay; hardened the stack with fd limits, UDP buffer tuning, Docker log rotation, container memory limits, and Nginx rate limiting.
WebRTC SRS5 Python FastAPI Docker Coturn DigitalOcean

Hitbullseye — Exam & Content Platform

Cybrain Software Solutions · 2011–2017

10,000+ concurrent students

Online Test Platform

  • Built the exam platform in core PHP (no framework) — still running stable years later.
  • Predictive auto-scaling on EKS: a scheduled process forecasts expected student count 10 minutes before each exam window and pre-warms the exact number of EC2 instances — no reactive scrambling under load.
  • During live tests, 95% of DB writes are offloaded to Redis (student responses), keeping SQL pressure near-zero; question images and content served from S3/CDN.
  • Integrated proctoring: real-time student monitoring, session recording, and automated violation reporting.
100,000+ articles · multi-domain

Drupal Blog Platform

  • Serves 100,000+ articles across multiple domains from one server and one shared database; domains separated via content types, not separate installs.
  • Dynamic sitemap and robots.txt generation keep SEO healthy as article count grows.
  • Designed for editorial ease: content team publishes articles through a clean dashboard with no technical help needed.
  • Consistently good Core Web Vitals despite the volume of content.
Core PHP EKS Redis S3 / CDN Proctoring Drupal Multi-domain SEO

Decathlon Global Ecommerce Platform

30 countries · 3 years

Decathlon Sports Private Limited · 2017–2020

  • Core architect on the migration from a PrestaShop monolith to microservices for one of the world's largest sporting goods retailers.
  • Led 10+ engineers across backend, design, and DevOps through a 3-year multi-country rollout — owned delivery timelines, stakeholder communication, and localized launches.
  • Built a coupon microservice (Symfony/PrestaShop) delivering sub-200ms API responses with robust business logic.
  • Designed ETL pipelines and a PIM system to centralize and normalize product data across all 30+ markets.
PrestaShop Symfony PHP Microservices ETL PIM AWS

Skills

Languages
PHPPythonSymfonyLaravelNode.jsVue.jsHTMLCSS
Platforms
PrestaShopDrupalWordPress
Databases
MySQLMSSQLMongoDBRedisElasticsearch
Infrastructure
GCP (GKE, Cloud Build, Cloud Run)AWS (EC2, ECS, EKS, S3, Lambda)KubernetesDockerCI/CDDigitalOcean
Streaming
WebRTCSRS5Red5ProAntmediaDolby.ioJWPlayerCoturn
Observability
New RelicDatadogMatomoZabbix

Education

Contact

Available for web development projects (PHP, Laravel, PrestaShop, ecommerce) and live streaming platform work — self-hosted Vimeo alternatives, WebRTC infrastructure, low-latency delivery. If a problem you're working on sounds like something I've solved before, let's talk.

Send me an email

Phone: 889-246-1021  ·  Location: Dharmapuri, TN