Alan Sebastian

BTech Computer Science (Cybersecurity) graduate with hands-on experience across AI/GenAI engineering, full-stack development, and cybersecurity operations. Built and deployed production AI agents, RAG pipelines, and LLM-powered applications on AWS. Experienced in REST API design, secure system architecture, and cloud-native deployment with Docker. Additional background in SOC operations and penetration testing combining builder instincts with a security-first mindset.

AI Engineering Intern at FutureBlox Technologies Pvt Ltd (2026-02 – 2026-06)

• Architected a Cloud Cost Optimization Advisor Agent using Advanced RAG with Few-Shot CoT prompting on AWS Bedrock (Mistral 3B 8B), orchestrated via LangChain — end-to-end production ownership.
• Designed a multi-step LLM reasoning pipeline (issue identification → alternatives → savings calculation → recommendation) with semantic vector retrieval over ChromaDB/FAISS across 5 optimization scenarios.
• Built FastAPI REST backend with query logging and Streamlit chat UI, containerized with Docker and version-controlled on GitHub — clean, well-documented, production-quality code throughout.

SOC Intern at Mannai Corporation QPSC (2025-06 – 2025-07)

• Reduced SIEM false positives by 15% via Rapid7 InsightIDR rule tuning; automated PowerShell incident response scripts cutting mean time to respond by 10%.
• Conducted 20+ vulnerability scans achieving 95% endpoint compliance; documented findings and remediation recommendations for security team review.

Penetration Tester Intern at ActivBytes (2025-04 – 2025-05)

• Performed web and network penetration tests using OWASP Top 10 and MITRE ATT&CK frameworks; identified 30+ vulnerabilities using Burp Suite, Metasploit, and Nessus.
• Built Python automation scripts for exploit testing and structured vulnerability reporting, reducing manual effort and improving reproducibility.

BTech in Computer Science (Cybersecurity) – Manipal Institute of Technology (2022 – 2026)