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Portrait of Prasanna K R
● Full Stack Developer Chennai, Tamil Nadu · He/Him

Prasanna K R
builds software people rely on.

Forward Deployed Engineer and Full Stack Developer with 8+ years of experience, currently a Development Engineer 3 at Comcast. I work side by side with the teams who use what I build — understanding their problems first-hand, then shipping AI-powered web and mobile products that solve them, from first idea to launch.

Experience
8+years
Since 2018
Current role
Dev. Engineer 3
Comcast
Education
IIM Kozhikode
in progressMCA
Location
Chennai, India
Hybrid · IST
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Experience Education Email me
name Prasanna K R role Development Engineer 3 @ Comcast exp 8+ years (since Jun 2018) degrees MCA, University of Madras · BSc CS, Thiagarajar College learning Advanced Business Management, IIM Kozhikode based Chennai, Tamil Nadu, India network 2,050 followers · 500+ connections motto "from scratch to release"

01 — Experience git log

Eight years of building and shipping.

Eight years across three companies and five roles — from client projects to enterprise platforms. Most recent first.

8+
years
5
roles
3
companies

  1. Current role · Oct 2023 – present

    Development Engineer 3

    Comcast · Chennai · Hybrid

    • Own end-to-end delivery of enterprise, agent-facing web platforms used by 1,000+ customer support agents across the US — from Figma design to production release.
    • Lead the Sky Broadband project, building Java Spring Boot microservices with Oracle DB and Kafka for real-time event processing that let support agents manage broadband service orders.
    • Increased agent operational efficiency by 20–25% and reduced average handle time on support calls by engineering scalable React and TypeScript single-page applications.
    • Improved page performance by 35% by optimizing Core Web Vitals (LCP, FID, CLS) through lazy loading, code splitting and memoization.
    • Delivered real-time agent dashboards by integrating GraphQL APIs with Apollo Client and Redux.
    • Reduced production defects by 25% with a Playwright end-to-end test suite, supported by JUnit, Mockito and Cucumber testing and SonarQube quality gates.
    • Cut build-to-deploy cycle time by 20% by streamlining Jenkins and GitLab CI/CD pipelines.
    • Partner with UX designers to ship WCAG 2.1 / ADA-compliant React components from Figma within 2 days, and drive code and architecture reviews in an Agile/Scrum team.
    1,000+
    agents supported
    20–25%
    agent efficiency
    35%
    faster pages
    25%
    fewer defects
    20%
    faster deploys

  2. Nov 2021 – Oct 2023 · 2 yrs

    Software Prod & Plat Eng Analyst

    Accenture · India · Hybrid

    • Led the design and development of the integration between a virtual healthcare platform and the Allscripts EHR system using React, Ruby on Rails and GraphQL, serving 1M+ users.
    • Owned the product lifecycle end to end — from gathering requirements and partner dependencies through implementation to workload balancing.
    • Built reusable React components shared across member, provider and admin applications.
    • Improved system metrics by integrating multiple platforms and adding in-depth, correlated API logging.
    • Improved application performance by profiling code and fine-tuning database queries on AWS.
    • Drove CI/CD, pull requests and code reviews, with regression, unit and end-to-end testing in RSpec, Jest and Capybara.
    1M+
    healthcare users served

  3. May 2021 – Oct 2021

    Developer

    CLSS Labs · Tamil Nadu

    • Led the design and development of a Shopify–Salesforce integration platform for enterprises — microservices built with React, Node.js, MongoDB, Docker and AWS that sync customer, sales and order data.
    • Built scalable APIs and background workers handling millions of requests a day.
    • Owned the product end to end: requirements and partner dependencies, implementation, testing, and the metrics, alarms, monitors and dashboards that keep it healthy.
    • Built Arifu, a personalised learning platform, with React, SurveyJS and GraphQL (Apollo Client), securing sensitive customer data with JWT, sessions and Passport.js.
    Millions
    requests a day

  4. Sep 2019 – May 2021 · 1 yr 9 mos

    Jr. Developer

    CLSS Labs · Tamil Nadu

    • Built an SAP-integrated Quality Check Android app that lets employees mark attendance with facial recognition, record QC data and plan field journeys.
    • Implemented real-time GPS location tracking synced to Google Firebase, and integrated REST services with Retrofit.
    • Published and maintained apps on the Google Play Store, managing keystore signing and crash monitoring.
    • Built the FM Collection Portal in Angular, helping collection agents and sales teams track outstanding client invoices, with Power BI statistics for admins.

  5. Jun 2018 – Sep 2019 · 1 yr 4 mos

    Developer Trainee

    CLSS Labs · Greater Chennai

    • Designed and developed a mobile app that lets 1M+ farmers view their payments and milk-collection details, for an agro-products enterprise running on SAP.
    • Reported directly to the CTO to build a transaction dashboard inside a Google Hangouts Chat bot (Apps Script), giving the board of directors rich visual summaries for decision-making.
    • Built a sales-order booking app that streamlined customer ordering.
    • Built a driver-hiring platform with Angular, Ionic, Node.js and MongoDB on AWS for 5,000+ users, with OneSignal push for new trip requests and MongoDB location queries.
    1M+
    farmers reached
    5,000+
    driver-app users

02 — Education & certifications cat credentials

Always learning.

Education

Ongoing

Advanced Business Management

IIM Kozhikode

Executive programme · alongside current role

In progress
2018 – 2020

Master of Computer Applications

University of Madras

Institute of Distance Education · Chennai

GPA 7.9
2015 – 2018

Bachelor of Science, Computer Science

Thiagarajar College

Madurai, Tamil Nadu

CGPA 8.89

Certifications

Jun 2022

AWS Certified Developer – Associate

Amazon Web Services

Building, deploying and debugging cloud applications on AWS

Certified

03 — Skills ./stack

Skills across every layer of a product.

01 · 10 tools

AI & LLMs

Current focus

LLM-powered features and AI agents that work inside real business workflows — from prompt to production.

  • Claude API
  • Gemini API
  • LangGraph
  • AI Agents
  • Multi-agent Systems
  • RAG
  • pgvector
  • Prompt Engineering
  • Python
  • AI-assisted Development
02 · 10 tools

Frontend

The screens people see and use — fast, accessible websites and web apps.

  • JavaScript
  • TypeScript
  • React
  • Next.js
  • Redux
  • Angular
  • HTML5
  • CSS
  • SASS
  • Tailwind CSS
03 · 7 tools

Backend

The servers and APIs that power features and keep data correct.

  • Node.js
  • Express
  • Java
  • Spring Boot
  • Ruby on Rails
  • GraphQL
  • Kafka
04 · 7 tools

Databases

Storing and organising information reliably as products grow.

  • MySQL
  • PostgreSQL
  • MSSQL
  • MongoDB
  • Oracle DB
  • SQLite
  • Firebase
05 · 3 tools

Mobile

Android and cross-platform apps for payments, drivers and field teams.

  • Android (Java)
  • Ionic
  • Retrofit
06 · 8 tools

Cloud & DevOps

Cloud hosting and automation that ship updates safely and often.

  • AWS
  • AWS Lambda
  • Docker
  • Kubernetes
  • Jenkins
  • GitLab CI
  • Git
  • SonarQube
07 · 7 tools

Testing & Quality

Automated tests that catch bugs before users do — from unit tests to full user journeys.

  • Jest
  • React Testing Library
  • Playwright
  • Mocha
  • JUnit
  • Mockito
  • Cucumber

04 — Contact ssh hello

Let's build something together.

Hiring, collaborating or just want to talk tech? Send a message or reach out on LinkedIn.

prasannakr1998@gmail.com
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