Freelancer profile translated to English.
Back to original languageAbout Christian
Full-Stack Development
Experience in implementing modern web applications – from frontend to backend. Planning and realization of individual solutions for various industries.
Python
Proficient in Python and frameworks like Django, FastAPI, and Flask. Development of scalable applications, APIs, and high-performance ETL pipelines. Experience in Data Science.
JavaScript
Development of dynamic interfaces with React.js. Focus on performance and intuitive user experience. Profound knowledge in JavaScript/TypeScript, Node.js.
PHP
Experience with Laravel and Symfony. Integration of external services via REST APIs and development of stable middleware and backend solutions.
Microservices
Experience in the design and implementation of cloud-native distributed systems. Development of modular services with clearly defined interfaces.
Testing & Quality Assurance
Creation and execution of unit, integration, and UI tests. Emphasis on test automation in CI/CD pipelines to ensure quality.
Containerization & Orchestration
Use of Docker and Docker Compose for containerization and local development. Knowledge of Kubernetes for deployment and management of distributed systems.
DevOps & Cloud
Experience with AWS, Azure, and CI/CD tools like GitLab CI and GitHub Actions. Automation of build, test, and deployment processes.
AI Integration
Development and integration of AI functionalities, especially GenAI. Connection of modern models to existing applications.
Relational Databases
Proficient in design, optimization, and migration of relational databases (PostgreSQL, MySQL). Experience with data modeling, query optimization, and ORMs.
Vector Databases
Experience with PGVector and Qdrant for storing and querying embeddings for AI-powered features like semantic search.
Project Management
Knowledge of agile methodologies (Scrum, Kanban) and technical team leadership. Focus on planning, prioritization, communication, and continuous improvement.
German
Native or bilingual
English
Fluent
Can work on-site
Pforzheim (up to 50km), Stuttgart (up to 10km), Karlsruhe (up to 10km)
Experience
- Nuvus GmbHSenior Full-Stack DeveloperDIGITAL AND ITAugust 2025 - Today (10 months)Heimsheim, GermanySupporting various client projects as a software developer. Focus areas include full-stack development, AI integration, and the realization of customized web applications.Technologies
- Node.js (express, fastify)
- Python (FastAPI)
- PostgreSQL
- MongoDB
- Docker
- React
- Angular
- LLM
- Quantrefy GmbHSenior Full-Stack DeveloperREAL ESTATEApril 2025 - July 2025 (3 months)76 Karlsruhe, GermanyConception and implementation of a scalable middleware for aggregating external ESG data sources via REST APIs. Integration of the solution into the existing data analytics platform. Test automation with pest / unittests for the Laravel backend.Technologies:
- PHP (Laravel, Symfony)
- Python (Pandas, Numpy, FastAPI + Pydantic)
- AngularJS
- Docker
- dmTECH GmbHBackend DeveloperRETAIL (SMALL BUSINESS)September 2024 - March 2025 (6 months)76 Karlsruhe, GermanyDevelopment of interface modules and AI assistants for the GenAI platform "dmGPT" for internal process optimization. Connection of external DMS and SharePoint sources as well as new LLMs. Development of a robust FastAPI service structure with test coverage and containerization. Support for other departments in working with dmGPT.Technologies:
- Python (Pandas, ElementTree, FastAPI + Pydantic, Chainlit)
- React (Redux)
- Vector Databases (pgvector, Qdrant)
- Large Language Models
- Docker, Kubernetes, OpenShift
- Azure (App Services, Container Apps, AI Foundry, Functions)
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Education
- IT Specialist for Application Developmentheureka e-Business GmbH2017Full-Stack Entwicklung von Webanwendungen
Certifications
- IT Project CoordinatorIHK2019