# Reegan Rajasekar A

> Full Stack Engineer with 3.5+ years of experience building secure, scalable web and mobile applications with .NET (C#), React, Angular, SQL Server and Azure. Currently building production AI systems — MCP servers, RAG pipelines and agents on OpenAI and Azure AI Foundry. Based in Tiruchirappalli, Tamil Nadu, India. Open to remote and hybrid roles.

## Contact

- Email: areeganrajasekar@gmail.com
- Phone: +91 70940 93096
- Location: Tiruchirappalli, Tamil Nadu, India
- [Portfolio](https://reegan.is-a.dev/)
- [CV (PDF)](https://reegan.is-a.dev/Reegan-Rajasekar-CV.pdf)
- [GitHub](https://github.com/reeganrajasekar)
- [LinkedIn](https://www.linkedin.com/in/reeganrajasekar)

## Summary

- 3.5+ years across enterprise web apps, internal portals, IoT access control, eCommerce, analytics dashboards and AI tooling.
- Core stack: .NET Core (C#), ASP.NET MVC, REST APIs, React, Angular, SQL Server, PostgreSQL, Redis, Azure, Docker, Kubernetes, Linux.
- AI work: MCP servers with 100+ tools exposed to agents, RAG pipelines over ERP and payroll data, containerised agents on Azure AI Foundry, prompt-injection checks, per-tenant rate limits, caching and context budgeting for cost control.
- Security: OWASP Top 10, secure authentication and authorization, input validation, API hardening.

## Experience

- Software Engineer II — Adaptive Bizapp Systems, Tiruchirappalli (Feb 2026 – Present)
- Software Engineer — SCION, Thanjavur (Dec 2024 – Feb 2026)
- Junior Software Engineer — UBTIINC, Chennai (Jun 2023 – Dec 2024; progressed from Intern → Trainee → Junior Software Engineer)
- Full Stack Developer Internship — Sirius Computer Solutions (Jun 2022 – Jul 2022)

## Selected projects

- Warehouse Management System — .NET Core, ASP.NET MVC, SQL Server (Adaptive)
- IoT Smart Security & Locker Access Control (Vsafe) — .NET Core, IoT, OWASP (SCION)
- ESG Analytics Dashboard — .NET, SQL Server (UBTIINC)
- Secure eCommerce Web Application — .NET Core, React, SQL Server (SCION)
- SJCET College Website — React, PHP, MySQL (https://sjcettnj.edu.in/)

## Credentials

- B.E. Computer Science & Engineering — St. Joseph's College of Engineering and Technology, Thanjavur (2019 – 2023, 83%)
- Full Stack Development — ICT (IBM)
- Full Stack JavaScript — Sirius (CDW)
- Full Stack Development — Udemy
- Best Employee of the Quarter — SCION
- Spotlight Award — UBTIINC

## Site sections

- [About](https://reegan.is-a.dev/#about)
- [Experience](https://reegan.is-a.dev/#experience)
- [Projects](https://reegan.is-a.dev/#projects)
- [Tech stack](https://reegan.is-a.dev/#tech-stack)
- [Education](https://reegan.is-a.dev/#education)
- [Certifications & awards](https://reegan.is-a.dev/#certifications)
- [Contact](https://reegan.is-a.dev/#contact)
- [Sitemap](https://reegan.is-a.dev/sitemap.xml)