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jatin.sharma

SDE-2 · Newgen Software Technologies

Jatin Sharma

I build products, systems and developer tools, and I want to know what runs underneath them.

Enterprise software by day, SaaS and tooling by night. Frontend, backend, infrastructure and AI, with a standing curiosity about the layers below: networks, operating systems and memory.

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Story

I don't just want to use abstractions. I want to understand what is underneath them.

I started with application development: components, endpoints, forms. It worked, and at some point “it works” stopped being a satisfying answer. Why is this request slow? What does the database do with that query? What actually happens between a browser and a server?

Each question pulled me one layer down: from JavaScript into backend services, into databases, into networking, then Linux and Docker. That curiosity is now pointing at C++, operating systems and distributed systems, and, more recently, at what it takes to run AI systems.

At work that habit shows up as debugging production problems and carrying large migrations through. Outside work it shows up as building the whole thing, then running it.

B.Tech, Maharaja Agrasen Institute of Technology, Delhi · 2024 · CGPA 8.97 · about three years of professional experience.

  1. JavaScript
  2. Backend
  3. Databases
  4. Networking
  5. Linux
  6. Docker
  7. C++exploring
  8. Operating systemsexploring
  9. Systems programmingexploring
  10. Distributed systemsexploring
  11. AI infrastructureexploring

Selected work

Things I built, shipped and run.

Each one started from a specific problem. The pages behind them cover what I built, the decisions that mattered, and the architecture.

03Developer tool · Chrome extension

NetworkLogger

A Manifest V3 extension that records fetch, XHR, sendBeacon and form traffic so logs survive popups, closed tabs and short-lived windows.

  • JavaScript
  • Chrome Extensions
  • Manifest V3
  • Service Workers
  • chrome.storage
Read the breakdown GitHub
05Infrastructure · reverse proxy

FluxGate

A reverse proxy and load balancer written from scratch on Node's http module, to understand what NGINX or an ALB does underneath.

  • Node.js
  • Redis
  • Docker
  • Docker Compose
  • HTTP
Read the breakdown GitHub

Enterprise software

Keeping a large platform current while it keeps shipping.

Newgen Software Technologies

SDE-2 · NewgenONE

NewgenONE is an enterprise platform. I work across its frontend, backend and platform layers on major releases and patches, which means the work spans new features, long-running migrations, production issues, internal QA findings and client requirements.

Product areas

  • NewgenONE Workspace
  • Business Admin
  • Custom Workspace
  • Queue Management
  • Criteria Management
  • Advanced Search
  • WorkItemList
  • Multilingual support
  • Themes

Across

  • Frontend
  • Backend
  • Platform
  • Enterprise deployments
  • Migrations
  • Debugging
  • QA and client requirements
  • Performance
  • Microfrontends

Spring Boot, REST APIs, FreeMarker templates, Docker and CI/CD pipelines. Deployments span on-premise and cloud setups on AWS, Azure and GCP, running on JBoss EAP or WebSphere against PostgreSQL, Oracle and Redis.

Major migrations

React

  1. 17
  2. 18
  3. 19

MUI

  1. v4
  2. v5
  3. v7

Bundler

  1. Webpack 4
  2. Webpack 5
  3. Vite

Vite is in progress

Java

  1. 17
  2. 21

Alongside these: microfrontend compatibility, theme architecture, and CSS and RTL work that had to hold across the whole product.

Engineering lab

Things I'm exploring.

I learn by building. These are areas I'm working through, not claims of expertise.

  • 01

    C++ and memory

    Pointers, allocation and object lifetimes, to see what a garbage collector or a framework hides.

  • 02

    TCP servers and HTTP internals

    Sockets, framing and parsing, down to what a request is before a framework gets hold of it.

  • 03

    TLS and cryptography

    Handshakes, certificates and why HTTPS works the way it does.

  • 04

    Redis and Kafka

    Caching, rate limiting, queues and logs, and how they behave under failure.

  • 05

    WebSockets

    Long-lived connections and the state and scaling problems that come with them.

  • 06

    Operating systems and Linux

    Processes, scheduling and concurrency, from the shell side and the kernel side.

  • 07

    Docker and distributed systems

    Networks, volumes, restarts, and the failure modes that appear once there is more than one machine.

  • 08

    AI agents and LLM infrastructure

    Agents, model APIs, AI-assisted engineering, and what running them costs.

Toolbox

What I work with, grouped by what it's for.

Languages
JavaScriptTypeScriptJavaC++
Frontend
ReactNext.jsViteMUITailwind
Backend
Node.jsNestJSExpressSpring Boot
Data
MongoDBPostgreSQLMySQLOracleRedis
Infrastructure
DockerJenkinsAWSLinuxCaddyNginxJBoss
Systems
TCP/IPHTTPTLSLinuxC++Networking
AI
LLMsAI APIsAI developer toolingAgents

Contact

If you're building something where the details matter, get in touch.

jatinsj710@gmail.comgithub.com/jatinsh1011LinkedInX (@jatinsj710)Resume (PDF)