ARUN KUMAR

Software Engineer

About Me

Hey there 👋 I'm Arun, a Full-stack AI Engineer with over 6 years of experience building robust, scalable applications across the enterprise ecosystem. I specialize in creating impactful user experiences using the MERN stack, and I'm currently diving deep into the world of AI, microservices, and cloud-native architectures at Telus Digital.

Right now, I'm working on integrating gRPC and GCP Pub/Sub in our production-grade micro frontends to enable high-performance, event-driven systems. My work often bridges the gap between frontend finesse and backend resilience—building micro-frontend starter kits, designing infra flows to fetch secrets securely on GCP, and rolling out reusable component libraries used by multiple teams.

In the AI space, I tinker with MCP servers, prompt engineering, and have actively contributed to building AI-powered tools that enhance productivity across our digital platform. My team snagged 3rd place in a Telus-wide AI Hackathon, which was an amazing ride!

When I'm not coding, you'll usually find me jamming on my guitar, gaming, or nerding out over new tech. I love pushing the limits of what's possible—whether that's building smarter systems, exploring new dev workflows, or helping fellow engineers level up.

If you're into clean code, cool projects, and conversations about tech (or music and Anime!), we'll probably get along just fine :)

Experience Timeline

Lead Software Engineer

TELUS Digital

May 2024 - Present (2 years 1 mo)

Led a squad of 6 engineers, owning full delivery of 10+ micro-frontends end-to-end — from infra setup, CI/CD pipelines, and MFE + BFF architecture through requirement refinement and production rollout.
Designed and built BFF services integrating gRPC APIs and third-party vendors for real-time enterprise applications, enabling seamless data orchestration across distributed micro-frontends.
Built internal AI workflows including a PR review automation tool, RAG pipelines, and n8n-powered automation flows to accelerate development productivity across the organisation.
Implemented GCP Pub/Sub for real-time event processing and asynchronous microservice communication, enabling event-driven architecture at scale.
Designed a Micro-frontend starter kit adopted across multiple product teams, reducing application complexity and enabling faster independent deployments.
Traveled onsite to Canada to collaborate directly with product owners, improving requirement clarity and eliminating blockers across cross-functional teams.
Conducted 20+ technical engineering interviews bi-weekly, evaluating candidates on system design, JavaScript, and React.
Managed GCP Secret Manager and GCP API Marketplace for enterprise-grade API governance and secrets management across multiple services.

Next.jsNode.jsTypeScriptGraphQLgRPCMicroservicesGCPKubernetesRAGn8n

Senior Software Engineer

TELUS Digital

Mar 2023 - Jun 2024 (1 year 3 mos)

Implemented coding guidelines and unit test standards, pull-request template for various repos, resulting in a 20% reduction in code defects and improved team efficiency.
Designed a Micro-frontend starter kit, reducing app complexity and enabling faster deployments across teams.
Implemented microservices architecture for scalable applications
Developed and optimized PostgreSQL database schemas and queries for handling billing transactions and related data, ensuring high performance and reliability.

ReactZustandNode.jsGraphQLMongoDBPostgreSQLMicroservices RedisOpenShift

Software Engineer

TELUS Digital

Jun 2021 - Mar 2023 (1 year 9 mos)

Led the design and development of multiple enterprise-level microservice applications, serving 10 million customers using the latest technologies of Node, GraphQL, MongoDB, PostgreSQL, GCP, and SQS.
Implemented coding and unit test guidelines, pull-request template for various repos, resulting in a 20% reduction in code defects and improved team efficiency.
Led the development of 10+ ReactJS common components used by multiple projects, from identifying requirements to implementation, testing, setting up Storybook, and publishing as npm packages.

JavaScriptExpress.jsReactResponsive Web DesignRESTful APIs

Project Engineer

Wipro Limited

Sep 2019 - Jun 2021 (1 year 9 mos)

Developed web applications using Express.js and responsive design techniques
Collaborated with cross-functional teams to deliver high-quality software solutions
Worked on frontend and backend development for enterprise applications

Express.jsJavaScriptHTML/CSSGitABAP-SAP

Skills

Level of Experience:

HighMidLow

React

JavaScript

TypeScript

React Native

CSS

NextJs

Zustand

Redux

Frontend

Micro-frontend

Storybook

Node

Express

MongoDB

PostgreSQL

gRPC

Redis

MySQL

NoSQL

GraphQL

Backend

Full-Stack

MERN

Microservices

Open AI APIs

Prompt Engineering

GPT-3

GPT-4

RAG Pipelines

n8n

MCP Servers

Vector Search

Jest

React Testing Library

Enzyme

Unit Testing

CI/CD

Github actions

webpack5

GCP

Kubernetes

SQS

Openshift 4

Unleash

Adobe analytics

C++

Java

Python

OOP

Unreal Engine 4

Game Development

English

Hindi

Personal Projects (hover on the titles...)

OpenTeleprompter

Open-source voice-activated teleprompter for Mac + Windows built with Tauri v2, Rust, and React/Vite. Features Dynamic Island notch mode, live script stats, screen-share stealth, VAD voice scroll, and automated multi-platform CI/CD. 61+ GitHub stars, active contributor community.

Tauri v2RustReactViteCI/CD

RAG-Js-Concepts

A fully functional RAG (Retrieval-Augmented Generation) pipeline built in Node.js. Uses API-based embeddings, FAISS vector similarity search, and an LLM for generation. Features a live chat UI where you can query indexed documents and see the retrieved chunks that grounded the answer.

Node.jsRAGfaiss-nodeVector SearchExpressGenAI