RM

Full-Stack Developer · Enterprise SaaS

Rubarajan
Muthu Krishnan

Ten years building and deploying enterprise SaaS platforms for the U.S. health-insurance industry — full stack across Angular, Node.js, C#/.NET, and MS SQL Server.

10+Years as Developer
USACurrently based
Let's build something
Now

01 · 2022 – PRESENT · INDIA → USA CURRENT

EXL Service

EXL Service

From full-stack developer to team lead — three years, one platform, two countries.

2025 – PRESENT · USA

Manager – Services

Now lead a cross-functional team of analysts and developers delivering the platform to carrier clients — owning roadmap, sprint planning, and the multi-tenant deployment lifecycle while staying hands-on.

  • Own telephony (NICE CXOne, Twilio) and email (SendGrid) workflows embedded in the platform.
  • Run executive platform demos for VP-level stakeholders to drive adoption across carriers.

2022 – 2025 · CHENNAI, INDIA

Lead Assistant Manager · Full-Stack Developer

Built a proprietary multi-tenant SaaS platform for U.S. health-insurance carriers — data isolation, a carrier-specific business-rule engine, a RESTful API layer, and an Angular front-end.

  • Integrated NICE CXOne and Twilio for interaction generation, screen pop, and agent telephony.
  • Led carrier onboarding — requirements, tenant configuration, and UAT.
AngularNode.jsREST APINICE CXOneTwilioAzureTeam Leadership
2022 · Now
2020

02 · 2020 – 2022 · CHENNAI, INDIA

BNY

BNY Mellon Technologies

Senior Information Security Analyst

Built the Identity Access Management progressive web app (Angular 6, Web API, MS SQL / MariaDB) enabling organization-wide role-based access control.

  • Implemented MFA and token-based Web API authentication.
  • Built automated security-ops tooling in C#, Batch, and PowerShell; designed architecture in Visio and Orbus iServer.
Angular 6Web APIMS SQLMariaDBPowerShell
2020
2019

03 · 2019 – 2020 · CHENNAI, INDIA

Cognizant

Cognizant

Associate

Developed and maintained enterprise web applications using C#, ASP.NET MVC, Angular, and MS SQL Server across the full development life cycle.

  • Contributed to the Catastrophe Evaluation Tool — a Windows WPF application for insurance claim assessment.
  • Worked in Agile/Scrum teams from requirements through delivery.
C#ASP.NET MVCAngularWPFMS SQL
2019
2015

04 · 2015 – 2019 · CHENNAI, INDIA

Tata Consultancy Services

TATA Consultancy Services

System Engineer

Where it started. Built and maintained enterprise web applications and internal tools — including the Global Helpdesk ticketing system and the Organizations WIFI Registration platform.

  • Developed SOAP web services, SQL stored procedures, and automated data-integration pipelines.
  • Deployed and operated applications on Microsoft IIS.
C#ASP.NETSOAPMS SQLIIS
2015