Subham Singh — Software Engineer
Available for new opportunities

Hi, I'm Subham

I'm a

Software Engineer

I build robust, scalable software — from pixels to production. Currently crafting merchant reporting experiences at PayPal.

Bengaluru, India
Get in touch
4+
Years experience
3
Companies
5+
Projects
About me

Turning ideas into reliable software

I am a Software Engineer with 4+ years of experience designing and developing robust software solutions. Proficient across a range of languages and frameworks, I excel at problem-solving and delivering high-quality code. My expertise spans full-stack development, and I have a strong passion for learning new technologies and continuously improving my craft. I'm committed to building efficient, scalable applications and driving meaningful technological impact.

Frontend Development

Creating dynamic and responsive web applications with React & Next.js.

Backend Development

Building robust and scalable server-side solutions and APIs.

Mobile Apps

Creating high-performance mobile applications for various platforms.

Desktop Applications

Developing versatile and efficient cross-platform desktop apps.

Career

Experience & education

A track record of shipping across fintech, security, and agri-tech.

Work

  1. Software Engineer 2

    Mar 2025 — Present

    PayPal

    • Build data-rich reporting and insights products on the Merchant Report & Insights Experience team, used by merchants worldwide to understand their payments and transactions.
    • Craft performant, user-facing reporting experiences end to end, turning complex transaction data into clear, actionable views.
    • Collaborate across product, design, and data teams to ship and iterate on merchant-facing features.

  2. Member Technical Staff

    Dec 2022 — Mar 2025

    Zoho Corporation

    • Integrated dark-web & botnet data-leak monitoring into security products.
    • Automated configuration of Windows devices across Active Directory / Workgroup for SIEM products.
    • Integrated the Webroot API with a scheduled update job for threat intelligence.
    • Delivered bug fixes and enhancements across cloud and on-prem products.

  3. Full Stack Developer

    Feb 2022 — Nov 2022

    NashAgri

    • Built a scalable web app handling 100k+ user records in a single sync (xlsx/csv → JSON with math computations) for retail billing.
    • Shipped an ERP application for agri traders in 4 months.
    • Developed the company landing page and a reverse-auction SaaS for semi-perishable agricultural goods.
Education
2018 — 2022

Academy of Technology

B.Tech, Computer Science & Engineering

2015 — 2017

Kendriya Vidyalaya

Senior Secondary (PCM & Computer Science)

Work

Featured projects

A selection of things I've designed and built.

AI Search Engine screenshot

AI Search Engine

A natural-language product search that deliberately keeps the LLM out of retrieval. The model parses queries like “gaming laptop under 80k with good reviews” into a strict, server-validated JSON constraint schema (constrained JSON-mode, temperature 0), while Typesense does the actual retrieval via hybrid search — 80% keyword + 20% semantic vectors in one query. The LLM is a translator, not the engine: fast, injection-proof, and it falls back to plain search instantly if the model fails.

  • Next.js
  • Typesense
  • Groq
  • LLM
Token Guardrail screenshot

Token Guardrail

A cost-control wrapper for LLM API calls that enforces hard spend caps, gives real-time cost visibility by feature and user, and alerts teams to spending anomalies before they get expensive.

  • LLM Ops
  • Node.js
  • TypeScript
  • Slack
ClientKit screenshot

ClientKit

A client & project management platform built for Indian freelancers and agencies — consolidating client tracking, GST-compliant invoicing, UPI payments, and a secure client portal in one dashboard.

  • Next.js
  • SaaS
  • Cashfree
  • Postgres
s3FileHub screenshot

s3FileHub

A modern, intuitive AWS S3 file manager with a beautiful web interface. Securely connect your AWS account and effortlessly organize, browse, and manage your cloud storage.

  • React
  • AWS S3
  • Node.js
  • Cloud
Codeforces Analyzer screenshot

Codeforces Analyzer

A Codeforces profile analyzer that visualizes competitive-programming stats, rating progression, and problem-solving patterns for any user.

  • React
  • Data Viz
  • REST API
Toolbox

Skills & technologies

The languages, frameworks, and tools I reach for.

JavaScript
TypeScript
React
Next.js
Node.js
Express
MongoDB
PostgreSQL
Redis
JavaScript
TypeScript
React
Next.js
Node.js
Express
MongoDB
PostgreSQL
Redis
JavaScript
TypeScript
React
Next.js
Node.js
Express
MongoDB
PostgreSQL
Redis
JavaScript
TypeScript
React
Next.js
Node.js
Express
MongoDB
PostgreSQL
Redis
Java
Python
HTML5
CSS3
Tailwind CSS
Docker
AWS
Git
Java
Python
HTML5
CSS3
Tailwind CSS
Docker
AWS
Git
Java
Python
HTML5
CSS3
Tailwind CSS
Docker
AWS
Git
Java
Python
HTML5
CSS3
Tailwind CSS
Docker
AWS
Git
Writing

From the blog

I write about distributed systems, JavaScript, and the things I learn.

Distributed Systems

L3 Load Balancer for gRPC servers

Networking

Exposing your localhost to the internet

React.js

Implementing Auto-Save in React with Custom Hooks

JavaScript

Asynchronous Programming Patterns in JavaScript

Read all posts
Contact

Let's build something together

Have a project, role, or idea in mind? My inbox is always open.

Emailsubham.dev20@gmail.com
LocationBengaluru, India

Find me online