# Mahaveer A

> Software Engineer at CaratLane (a Tata company) in Chennai, India. Works on
> backend systems for jewellery retail across India: Oracle ERP integrations,
> internal tooling, and the in-store sales app, built with Ruby on Rails,
> React Native, and the Oracle Fusion REST APIs. Also writes and speaks about
> secure coding, and keeps a public log of engineering experiments.

## About

- Name: Mahaveer A (handle: mahaveer1013)
- Role: Software Engineer, CaratLane (Tata group), Chennai, India
- Focus: backend engineering, ERP / Oracle Fusion integrations, secure coding, API design
- Education: B.Tech Information Technology, Panimalar Engineering College (2022 to 2026)
- Open to: backend-heavy software engineering roles, ideally in fintech or e-commerce

## Skills

- Backend: Ruby on Rails, Node.js, Express, Python (Flask, FastAPI, Django), Go, REST API design, Sidekiq
- Frontend: React, Next.js, React Native, JavaScript, TypeScript
- Data: MySQL, PostgreSQL, MongoDB, Redis, Kafka, Elasticsearch
- Integrations and infra: Oracle Fusion REST APIs, Oracle ERP, Docker, Linux, CI/CD (GitHub, GitLab), Firebase
- Security: secure coding, authentication and RBAC, API security, system design
- AI: AI-assisted development, local LLMs (Ollama), RAG, agentic workflows

## Experience

- Software Engineer, CaratLane (Tata), Jun 2026 to present. EZ Sales team: the internal app store staff use at every CaratLane retail location. React Native and Rails, Oracle Fusion integrations for invoice and ERP workflows.
- Software Developer Intern, CaratLane (Tata), Jun 2025 to May 2026. Rotated through the Online, Pricing, and EZ product teams.
- Full Stack Developer, Sayvai, Feb 2025 to May 2025. Built a Text-to-CAD framework using NLP.
- Earlier roles: A3 Express Cargo (freelance), Manvian, Altruisty, CodeSapiens, Upwork, Kanchi Karpooram Limited.

## Open source

- authentix (npm): auth for Node.js apps, signup, login, token generation, middleware, Google OAuth. https://www.npmjs.com/package/authentix
- safexchange (npm): encrypts request and response bodies between client and server. https://www.npmjs.com/package/safexchange
- GitLab: contributor, bug fixes. https://gitlab.com/gitlab-org/gitlab

## Community

- Led CodeSapiens for about a year: 8 monthly meetups, a 4-week mentorship program, 350+ students across 40 colleges.
- Regular at Chennai developer meetups: Chennai React, Code on JVM, Digital Dreamers Den, JSLovers, FOSS United, DEF CON Chennai.
- Speaker at Code on JVM Chennai (2026), on AI agents, context, and memory.

## Links

- Portfolio: https://mahaveer1013.vercel.app
- GitHub: https://github.com/Mahaveer1013
- LinkedIn: https://www.linkedin.com/in/mahaveer1013/
- LeetCode: https://leetcode.com/u/mahaveer1013
- Stack Overflow: https://stackoverflow.com/users/28369726/mahaveer-a
- Email: mahaveer30032005@gmail.com

## Site pages

- /about: overview, how I work, skills, education, certifications
- /about/conferences: conferences attended, with sessions and takeaways
- /about/meetups: meetups and community events, with sessions and takeaways
- /about/in-the-wild: photos from community events
- /experience: work history
- /experience/projects: industry, freelance, and personal projects
- /experience/open-source: published packages and contributions
- /experience/lab: engineering experiments, what was built, what broke, what was learned
- /links: every profile and link in one place
- /contact: contact form and email