Harish Kumar — Senior Fullstack Engineer
Hi! My name is Harish Kumar and I'm a Senior Fullstack Engineer based in Berlin! Nice to meet you!
Harish Kumar
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Profile

Full name

Harish Kumar

Location

Berlin, Germany

Nationality

Indian

About

Fullstack engineer with 9+ years building web applications, internal platforms, and fintech products. I specialise in React, TypeScript, Node.js, and AWS — with a focus on platform engineering and developer experience.

Hard skills

  • React JS & TypeScript
  • NX Monorepo
  • Node JS & Nest JS
  • REST APIs
  • AWS (Lambda, DynamoDB, S3, RDS, Athena, Glue, SNS, SQS, Cognito, CloudFormation, CloudFront)
  • Terraform & CDK
  • Storybook & UI Libraries
  • PostgreSQL & DynamoDB
  • Jest & Cypress
  • Jenkins & CI/CD
  • and more...

Always
building
better

Soft skills

  • Platform thinking
  • Team leadership
  • Mentorship
  • System design
  • Cross-team collaboration
  • Problem solving
  • Technical interviews
  • Scrum / Agile
  • Decision making
  • Work ethic
  • and...

Working
to be
stronger

First, solve the problem.
Then, write the code.

Work & Education

9+ years
w

Oct 2021 – Present

Software Engineer 2 — Klarna · Berlin

Card & Banking Platform

  • Designed and built the Banking Operations Portal (React JS + Nest JS) — used by 300+ ops users across 25+ teams
  • Architected the NX monorepo: 31-component UI library, custom CLI tooling & base framework — adopted by 26+ teams, reducing cross-team dependency requests by 40%
  • Built a data transformation pipeline for deposit & transaction data, supporting regulatory reporting over 10M+ records spanning 7+ years
  • Architected ISO-20022-compliant regulatory reports for the Swedish police
  • Built an event-driven interest accruals pipeline using SNS/SQS, Lambda & DynamoDB — fully provisioned with CDK
  • Acting Engineering Manager during EM absence — ran ceremonies, resolved cross-team blockers & drove architectural decisions
w

Sep 2019 – Sep 2021

Software Engineer — Gartner · Gurgaon

Frontend Platform

  • Built a pre-call planning application in React JS + TypeScript to improve analyst–client retention; owned frontend architecture, state management & data visualisation end-to-end
  • Created a reusable React component library with Storybook documentation — adopted across multiple product teams
  • Conducted frontend technical interviews
w

May 2017 – Sep 2019

Frontend Developer — inFeedo · Gurgaon

Product Engineering

  • Led frontend development of an AI-powered employee engagement chatbot
  • Built the employee engagement dashboard for visualising feedback and engagement metrics
  • Hired and grew the frontend engineering team
w

Aug 2016 – Apr 2017

Frontend Developer — SmarterHealth TechServe · Gurgaon

  • Built a healthcare product from scratch using AngularJS and Bootstrap
e

2011 – 2015

B.Tech — Information Technology

GGSIPU, Delhi

Harish Kumar

Personal projects

Side projects I built to scratch my own itch — or just to see if I could.

Project screenshot
React TypeScript Node.js

Project Title One

A short description of what this does, why you built it, and what makes it interesting. Keep it to 2–3 lines — enough to intrigue a recruiter.

View on GitHub ↗
Project screenshot
AWS Lambda DynamoDB

Project Title Two

A short description of what this does, why you built it, and what makes it interesting. Keep it to 2–3 lines — enough to intrigue a recruiter.

View on GitHub ↗
Project screenshot
NX Storybook CI/CD

Project Title Three

A short description of what this does, why you built it, and what makes it interesting. Keep it to 2–3 lines — enough to intrigue a recruiter.

View on GitHub ↗

Contact me