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Software engineer · production DevOps

Sugata Ray Chaudhury

I ship products end to end — and I run the infrastructure that keeps them up. Full-stack, mobile, machine learning, and live infrastructure — Nginx, AWS, Jenkins, and Cloudflare in production.

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Shipped

Live products

Learning platforms, mobile apps, and live servers

Production

Live infra

Nginx, AWS, Jenkins & Cloudflare

Highlight

Rank 2

MAKAUT Anwaswan Coding Challenge

Selected work

Projects I have shipped — plus demos I will link later.

DevOps

2026

Production infra & CI/CD

Hostinger VPS and AWS Ubuntu servers behind Nginx reverse proxy and IP-based load balancing. React served as static files, SSL/DNS on Cloudflare, Jenkins deploying on GitHub push. Restored a production outage by rerouting traffic and adding AWS capacity.

  • Nginx
  • AWS
  • Jenkins
  • Cloudflare
Read the write-up
Indian Railways · Mobile

Live

SamayPaal

SAMAYPAL - AMS/KPA: smart attendance for Eastern Railway Workshop KPA with AI face recognition and GPS geofencing. When a production server outage hit under load, I rerouted traffic through Nginx load balancing and spun up additional AWS servers to restore availability — keeping the app live for 5K+ Google Play users.

  • Indian Railways
  • Geofencing
  • Nginx
  • AWS
Get on Google Play
Live product

2025

Barracks Buddy Learning Platform

Interactive learning platform for defence aspirants. Contributed across frontend and backend features used by real students after launch.

  • React Native
  • Node.js
  • Product
Visit live site
Government project

Live

Homestay Meghalaya

Live listings experience supporting the Meghalaya government homestay initiative — helping travelers discover community stays.

  • Full-stack
  • GovTech
  • Listings

Demo · link coming soon

AI / LLM

Demo

Applicant Tracking with Ollama

Applicant tracking workflow using Ollama for local LLM-based processing — private, offline-friendly resume intelligence.

  • Ollama
  • Python
  • LLM

Demo · link coming soon

Machine learning

Demo

Zomato Recommendation System

Restaurant recommendation system built from user and venue data — ranking and personalization experiments.

  • Python
  • Scikit-learn
  • Recommenders

Demo · link coming soon

Data science

Demo

Credit Classification Pipeline

End-to-end classification pipeline for credit risk prediction, from preprocessing through model evaluation.

  • Keras
  • Pipeline
  • ML

Demo · link coming soon

About

Data science roots. Product shipping. Production DevOps.

Software engineer with a Data Science background and hands-on experience across full-stack web, mobile apps and production DevOps. I have shipped software from architecture through release, and I currently manage live infrastructure: Ubuntu servers, Nginx, AWS, Cloudflare, and Jenkins CI/CD.

I like the whole path: architecture, UI, APIs, release builds, and the servers that keep those releases healthy. If you are hiring for a builder who already operates production infrastructure and wants to go deeper, I want to talk.

Education

BSc in Data Science

Maulana Abul Kalam Azad University of Technology, West Bengal

Machine learning, statistics, and software engineering

Coursework: Supervised Learning · Data Preprocessing

Achievements

  • MAKAUT Anwaswan Coding ChallengeRank 2
  • Newton's Coding ChallengeRank 2695

Stack

Tools I ship with — including production DevOps.

Production strength in web and mobile. DevOps is live work: Ubuntu servers, Nginx load balancing, AWS, Cloudflare, and Jenkins CI/CD.

Languages & web

  • Python
  • JavaScript
  • React
  • Node.js
  • Flask
  • HTML/CSS
  • MongoDB

Mobile

  • Cross-platform apps
  • Face verification
  • Geofencing
  • OTP auth
  • Store releases

DevOps & infrastructure

  • Ubuntu / Linux
  • Nginx (reverse proxy, load balancing)
  • AWS
  • Hostinger VPS
  • Jenkins CI/CD
  • GitHub webhooks
  • Cloudflare SSL & DNS
  • Bash deploy scripts

Experience

From intern to shipping engineer.

  1. Software Engineer · Freelancerguys

    January 2026 – PresentNow

    • Managed production infrastructure across Hostinger VPS and AWS (Ubuntu) for a full-stack application, handling server provisioning, configuration, and troubleshooting.
    • Configured Nginx as a reverse proxy for a Node.js backend and set up IP-based load balancing across multiple servers to improve reliability and handle traffic distribution.
    • Served the React production build as static files via Nginx; managed SSL and DNS through Cloudflare for secure, reliable domain access.
    • Built a CI/CD pipeline using Jenkins triggered by GitHub webhooks on push, executing a deployment bash script with scoped passwordless sudo access (via visudo) to enforce least-privilege security.
    • Resolved a production server outage by rerouting traffic through Nginx load balancing and provisioning additional AWS servers to restore availability under load.
    • Built and shipped SamayPaal (SAMAYPAL - AMS/KPA) — a live app-based geofencing attendance system for Eastern Railway Workshop KPA, with AI face recognition, GPS verification, OTP authentication, and role-based employee/admin flows.
    • Designed full-screen error UX for SamayPaal attendance and authentication failures to improve reliability and user clarity.
    • Prepared Android and iOS release builds for store distribution.

  2. Software Engineer · Barracks Buddy

    January 2025 – December 2025

    • Developed and maintained the live Barracks Buddy learning platform across frontend and backend.
    • Collaborated with product to ship iterative improvements and keep the app reliable after launch.

  3. Software Engineer · XLayer Technology

    September 2024 – January 2025

    • Contributed to feature design and development as part of the engineering team after converting from intern to full engineer.

  4. Junior Software Developer Intern · XLayer Technology

    March 2024 – August 2024

    • Supported development across the software stack and learned production workflows on a real team.

  5. AI Team Member · Google Developer Student Clubs (GDSC)

    September 2023 – July 2024

    • Collaborated on AI-focused projects, workshops, and peer learning initiatives.

  6. Data Science Intern · Oasis Infobytes

    June 2023 – July 2023

    • Completed applied data science tasks including preprocessing and supervised learning exercises.

Contact

Building something that needs an engineer who ships product and keeps production up?

I am especially interested in teams where I can ship features and own CI/CD, servers, and cloud. Reach out — I read every message.

Emailrupsrc009@gmail.comPhone+91 8158068389LinkedInSugata Ray Chaudhary