Backend / Cloud Engineer focused on Java, Spring Boot, AWS, and production-ready systems.

I build backend services and cloud-native applications with an emphasis on secure architecture, CI/CD, and practical system design.

• Built and deployed hemenhesap.com, a cloud-native platform used by 500+ users
• Reduced infrastructure costs by around 70 percent through a Vercel-to-AWS migration
• Implemented CI/CD with GitHub Actions and infrastructure automation with AWS CloudFormation
• Applied security-focused practices such as IAM least privilege, HTTPS enforcement, and rate limiting
• Also build AI-enabled backend tools with Spring AI, Ollama, ChromaDB, and RAG workflows

• Cloud-native web platform for financial and operational calculations
• Focus: AWS migration, cost optimization, secure architecture, and programmatic SEO
• Stack: Next.js, AWS, PostgreSQL, Redis, GitHub Actions, CloudFormation
• Live: https://hemenhesap.com
• Showcase: https://github.com/Aghefendi/hemen-hesap-showcase

• RAG application for PDF, TXT, and XLSX document analysis and chat
• Supports IBM watsonx and local Ollama models
• Stack: Python, Streamlit, Docker, ChromaDB, Ollama
• Repo: https://github.com/Aghefendi/Document-Rag

• Type-safe JSON-LD schema builders for Next.js applications
• Built for rich snippets, structured data, and SEO-focused web apps
• Repo: https://github.com/Aghefendi/nextjs-jsonld-schema
• Package: https://www.npmjs.com/package/nextjs-jsonld-schema

• Backend: Java, Spring Boot, REST APIs, Python, Node.js
• Cloud and DevOps: AWS, CloudFormation, GitHub Actions, Docker, RabbitMQ
• Data: PostgreSQL, MongoDB, Redis, ChromaDB
• AI: Spring AI, Ollama, RAG, LoRA, PEFT, Hugging Face, IBM watsonx
• Security: Penetration testing, vulnerability assessment, IAM, rate limiting, Linux

• AWS Certified Solutions Architect - Associate
• Generative AI for Java and Spring Developers
• Microservices Architecture: Design Patterns and Principles

• LinkedIn: https://www.linkedin.com/in/mehmetagahc
• Email: mailto:m.agahcicek@gmail.com