Karan Kumar

CTO

Bengaluru, Karnataka, India7 yrs 9 mos experience
Highly Stable

Key Highlights

  • Led a team to develop a Card Management System.
  • Transitioned internal dashboard from AngularJS to ReactJS.
  • Built a CRM tool that streamlined operations.
Stackforce AI infers this person is a Fintech Backend Developer with strong frontend capabilities.

Contact

Skills

Core Skills

Backend DevelopmentMicroservices ArchitectureFrontend Development

Other Skills

AngularJSApache FlinkApache PinotBackend-for-frontend (BFF)C++CSSCore JavaEvent-driven processingExpress.jsGinGo (Programming Language)GrafanaHAProxyHTMLHTML5

About

Software engineer and a computer science graduate with excellent analytical and problem solving skills. I have extensive experience in software development. My work involves developing product/feature from inception to the release, analyzing new requirements, solving critical software development problems, performing root cause analysis, solving customer issues, etc. I am leading a small team of 6 devs. I am a quick learner and can adapt easily to the requirements of the team.

Experience

Finmo

Technical Lead

Jun 2025Present · 9 mos

Slice

2 roles

SDE 3 - Backend Engineer

Nov 2021Nov 2025 · 4 yrs

  • Liabilities - CBS
  • Trying to make the banking experience smooth
  • 𝑪𝒂𝒓𝒅 𝑴𝒂𝒏𝒂𝒈𝒆𝒎𝒆𝒏𝒕 𝑺𝒚𝒔𝒕𝒆𝒎 (𝑪𝑴𝑺)
  • Led a team of four to design and implement an in-house Card Management System aimed at supporting Rupay and VISA transactions. Conducted extensive research to understand CMS functionalities and developed a high-level architecture followed by detailed low-level designs. Managed the project lifecycle from sprint planning to technical solutioning, ensuring compliance with regulatory standards. Successfully completed the CMS by June 2023, implementing features for card creation, user onboarding, card booking, physical card printing, and transaction processing (ECOM, POS, TAP & PAY). The system passed audit checks and significantly improved operational efficiency.
  • 𝐂𝐚𝐫𝐝 𝐎𝐟𝐟𝐞𝐫𝐬
  • Developed a robust offer service for card transactions, applying microservices architecture principles. Authored the code from scratch and designed two types of offers: Top Offers for visibility on merchant platforms and Apply Offers that required user activation before transactions. Utilized a backend-for-frontend (BFF) model to enhance user engagement. Implemented a publish-subscribe model for event-driven processing, where transaction events from the card system were consumed by the offer service to dynamically apply relevant offers. The project was completed in two months, followed by one month of stabilization, adding multiple business offers to enhance customer experience.
Node.jsMicroservicesEvent-driven processingBackend-for-frontend (BFF)JavaSpring Boot+5

SDE 2 - Backend Engineer

May 2019Dec 2021 · 2 yrs 7 mos

  • 𝑺𝒍𝒊𝒄𝒆 𝑪𝒂𝒓𝒅
  • Developed a comprehensive credit card system, and implementing a billing system for settled transactions. Enhanced stability by addressing bugs and adding refund functionalities, achieving robust operations and scaling the user base from 45,000 to 3 million active card users.
  • 𝑰𝒏𝒕𝒆𝒓𝒏𝒂𝒍 𝑫𝒂𝒔𝒉𝒃𝒐𝒂𝒓𝒅 (𝑶𝒓𝒃𝒊𝒕)
  • Led the transition of the internal dashboard from AngularJS to ReactJS, enhancing the user interface and improving the overall development process. Established coding standards and best practices for frontend development, onboarding two new developers and mentoring them throughout the transition. Improved feature development speed from three months to two weeks by optimizing the codebase and implementing a systematic approach to feature releases. This stabilization project significantly enhanced team productivity and resulted in the timely shipping of new features.
ReactJSAngularJSJavaNode.jsMicroservicesFrontend Development+1

Zunroof tech private limited

3 roles

Software Development Engineer

Jun 2018Apr 2019 · 10 mos · Gurgaon, India

  • 𝐎𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧𝐬 𝐏𝐨𝐫𝐭𝐚𝐥 (𝐙𝐮𝐧𝐑𝐨𝐨𝐟): Developed a CRM tool for ZunRoof that streamlined internal operations and client
  • communications, utilising ReactJS and Node.js for a seamless user experience.
  • 𝐒𝐨𝐜𝐢𝐞𝐭𝐲 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 𝐓𝐨𝐨𝐥 (𝐙𝐮𝐧-𝐖𝐢𝐧𝐝𝐨𝐰): Built a management portal for society admins to efficiently track notices and
  • tasks, enhancing communication and operational efficiency using ReactJS
ReactJSNode.jsFrontend Development

Software Engineer Internship

Jan 2018Mar 2018 · 2 mos · Gurgaon, India

  • Built an admin employee portal and automate marketing tracking progress tool using nodejs expressjs mongodb and mysql.
Node.jsExpress.jsMongoDBMySQLBackend Development

Web Developer Internship

Jun 2017Aug 2017 · 2 mos · Gurgaon, India

  • I have worked on php-sql and MEAN Stack and also built a tool which helps in showing 2D image to 3D model with some restrictive rules
  • I have also built ZunCalc webApp which can be used to find estimated amount of power needed from solar based on their avg. electricity bill
PHPSQLMEAN Stack

Education

Maharaja Surajmal Institute Of Technology

Bachelor’s Degree — Computer Science

Jan 2014Jan 2018

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