mehmed@portfolio — bash — 120×38

mehmed@portfolio on ⎇ main $ whoami

Maljoki Mehmed — Full Stack Software Developer

📍 Vienna, Austria · Open to New Opportunities

mehmed@portfolio $ cat stack.json | jq '.core[]'

"Java Spring Boot" "Angular" "React" "PostgreSQL"

"Docker" "CI/CD" "REST APIs" "Hibernate ORM"

mehmed@portfolio $ echo $CURRENT_STATUS

✓ 5+ years @ Porsche Informatik / VW Group · AI Dev · Open to new opportunities

mehmed@portfolio $

Enterprise-grade code.
Built to last.

I'm Mehmed — a Full Stack Developer & AI Integration Engineer with 5+ years building scalable web applications and AI-powered systems for Porsche & Volkswagen Group. Now bringing that enterprise-level craftsmanship — and LLM expertise — to your team.

Java Spring Boot Angular React TypeScript PostgreSQL Docker CI/CD REST APIs Hibernate ORM Enterprise IAM OpenAI API LangChain RAG Pipelines Prompt Engineering

✉ Get in Touch View Experience → ↓ Download CV

about

Who I Am

Years of enterprise experience

Production systems delivered

15+

Technologies mastered

Languages spoken

I'm a Full Stack Software Developer based in Vienna, Austria, currently studying Software & Information Engineering at TU Vienna. My career has been shaped by demanding enterprise projects — from identity & access management systems for the Volkswagen Group to contract lifecycle platforms at Porsche Informatik — where reliability, clean architecture, and maintainability are non-negotiable.

I bring that same rigour to every project I join, whether it's a greenfield application, a legacy modernization, or a missing backend service. I care deeply about code quality, documentation, and delivery — not just shipping features, but shipping them right.

skills

Tech Stack

Battle-tested tools from real enterprise projects, not just tutorials.

☕

Backend — Java

primary language

Spring BootHibernate ORM MavenJSF JUnitMockito REST APIs

🌐

Frontend

modern frameworks

AngularReact TypeScriptHTML5 CSS3JavaScript

🗄️

Databases

relational & nosql

PostgreSQLMySQL MongoDBSQL Query Optimization

🐳

DevOps & Tooling

delivery pipeline

DockerCI/CD LinuxShell GitPostman

🔬

Other Languages

academic & systems

CProlog Haskell

🤖

AI / LLM Engineering

production AI integration

OpenAI APIAnthropic Claude LangChainRAG Pipelines Prompt EngineeringVector DBs LLM Tool UseAI Agents

⚡

AI Dev Tooling

modern AI workflow

Cursor / CopilotClaude Code n8n / AutomationEmbeddings pgvectorStreaming APIs Python

experience

Work History

Enterprise projects, real impact, production systems used by thousands.

Full Stack Software Developer

Porsche Informatik GmbH

Apr 2021 → Present

▸ Group Retail Portal — VW Group IAM

Java Spring BootJSF → Angular HibernateMySQL DockerCI/CD Enterprise IAM

Built and maintained Volkswagen Group's login/retail portal within its Identity & Access Management (IAM) ecosystem — ~1M users across ~30 modules, under a corporate-mandated 10-second worst-case response SLA, as part of an 11-person team.
Migrated legacy Java EE/JSF modules to Spring Boot and contributed to an ongoing JSF → Angular frontend migration.
Engineered modular Spring Boot backend services integrated with enterprise identity infrastructure, optimizing database operations for scale.
Authored technical documentation covering backend architecture and data models.

▸ AUDI Extended Vehicle

Java Spring BootReact

Built React-based frontend features for the AUDI Extended Vehicle product (~10K users), backed by Java Spring Boot services.

▸ Business Partner & Contract Management Platform

Java Spring BootAngular HibernatePostgreSQL DockerCI/CD REST APIsOpenAI API RAG / pgvector

Joined this greenfield platform from day one, contributing to architecture decisions alongside the lead architect; scaled it to ~100K users across ~10-15 modules with data synchronization to GRP, as part of a 6-person team.
Designed a scalable Spring Boot backend with secure REST APIs for partner management, contract versioning, and automated workflow notifications.
Built a responsive Angular frontend with dynamic data visualization and seamless backend integration.
Integrated Hibernate ORM with PostgreSQL for optimized query performance and complex entity relationships; ensured reliability through JUnit & Mockito test suites.
Containerized the application with Docker and established CI/CD pipelines, reducing deployment time significantly.
Introduced AI-assisted development workflows on own initiative — model selection, context/token reduction via indexing, story templates, and bash automation — adopted team-wide, cutting typical story turnaround from ~1 week to 2-3 days.
Integrated LLM-powered features (OpenAI API / Claude) for intelligent document summarization, contract anomaly detection, and automated data extraction — reducing manual review time by ~40%.
Built a RAG (Retrieval-Augmented Generation) pipeline using vector embeddings and pgvector to enable semantic search over contract documents.

expertise

Core Competencies

Where I add the most value — from backend architecture to AI integration.

01 /

⚙️

Backend Development

Robust REST APIs and microservices in Java Spring Boot. Clean architecture, proper error handling, security, and thorough documentation — built to last.

02 /

🖥️

Frontend Development

Responsive, performant SPAs in Angular or React. Component-driven, well-structured UIs that communicate flawlessly with backend services.

03 /

🗄️

Database Design & Optimization

Schema design, migration strategies, and query optimization for PostgreSQL, MySQL, and MongoDB. Data layers built for scale from day one.

04 /

🚀

CI/CD & Containerization

Dockerize your application and set up automated build, test, and deployment pipelines. Reliable delivery without the manual overhead.

05 /

🔍

Code Review & Refactoring

Fresh eyes on existing codebases. I identify bottlenecks, security gaps, and tech debt — then fix them with clear, maintainable solutions.

06 /

📄

Technical Documentation

Architecture docs, API references, onboarding guides, and deployment runbooks. A team deserves to understand what was built and why.

07 /

🤖

AI / LLM Integration

Embed AI into existing stacks — from OpenAI & Claude API integration to full RAG pipelines, AI agents, and intelligent automation. Production-ready, not just prototypes.

Enterprise-grade code.
Built to last.

Who I Am

Tech Stack

Work History

Independent Projects

Core Competencies

Academic Background

Let's Work Together

Let's connect

Enterprise-grade code. Built to last.

Who I Am

Tech Stack

Work History

Independent Projects

Core Competencies

Academic Background

Let's Work Together

Let's connect

Enterprise-grade code.
Built to last.