Recommended expert

Christian Worsch

Senior Full-Stack Developer

Christian Worsch
Wurmberg, Germany

Experience

Apr 2025 - Present
10 months
Karlsruhe, Germany

Senior Full-Stack Developer

Quantrefy GmbH

  • Developed a scalable middleware to connect 5 core ESG data provider APIs using Python (FastAPI, Django, Flask)
  • Performed data analysis, reporting, and forecasting of ESG data with PHP (Laravel, Symfony)
  • Integrated features into an existing data analytics platform, introducing React.js (Redux) with JavaScript/TypeScript after 1.5 years of stagnation
  • Implemented comprehensive test automation using pest and unittest
  • Built REST APIs and microservices for the Laravel backend, incorporating GitHub Actions
  • Integrated LLM and GenAI capabilities
  • Managed relational databases (PostgreSQL)
  • Technologies: PHP (Laravel, Symfony), Python (FastAPI, Pandas, NumPy), AWS, Node.js (Fastify), AngularJS, TypeScript, Docker, Kubernetes (OpenShift)
Sep 2024 - Mar 2025
7 months
Karlsruhe, Germany

Backend Developer

dmTECH GmbH

  • Co-developed the GenAI platform “dmGPT” using Python (FastAPI, Chainlit) and a React frontend
  • Developed specialized AI assistants and integrated Claude for internal process optimization
  • Built an incident management assistant for faster, detailed ticketing
  • Integrated SharePoint data sources and implemented a robust, containerized service architecture
  • Provided company-wide support and presented solutions at internal fairs and events
  • Technologies: Python (FastAPI, Pandas, Chainlit, SQLAlchemy), React (Redux), TypeScript, PostgreSQL, pgvector/Qdrant, Docker, Kubernetes, Helm, Azure; DevOps: GitLab, GitHub, CI/CD, Terraform; Vector databases: Qdrant, pgvector
Nov 2022 - May 2024
1 year 7 months
Munich, Germany

Technical Implementation Engineer

Cobrainer GmbH

  • Integrated 4 complex enterprise client systems into the Cobrainer talent platform
  • Developed migration and integration APIs for seamless system connectivity
  • Built an internal Python tool for managing client integration data
  • Developed a web-based service management tool (React + Python + FastAPI) to monitor ongoing integration projects
  • Integrated the OpenAI API for automated job descriptions and personalized sales demos
  • Technologies: Python (Django, FastAPI, Pandas, NumPy, spaCy), Kotlin, React (Redux), JavaScript/TypeScript, Docker, Azure, AWS, PostgreSQL
Apr 2021 - Oct 2022
1 year 7 months
Stuttgart, Germany

IT Consultant

BCM Solutions GmbH

  • Provided IT consulting and full stack development for two clients
  • Co-developed a new sales platform with PHP and Vue.js; maintained and redesigned sales software (Polymer) for optimized user experience (Client: Adco AG)
  • Led an internal department for system integrations and interface architectures
  • Integrated client systems via API and middleware services (Client: Cobrainer GmbH)
  • Technologies: Python (Django, FastAPI, Flask), PHP, Vue.js (Vuex), Polymer, Node.js (Fastify), React (Redux), JavaScript/TypeScript, Docker, Kubernetes, Azure, AWS, PostgreSQL
Feb 2019 - Nov 2020
1 year 10 months
Pforzheim, Germany

Full Stack Developer

Sternad Software GmbH

  • Independently developed a custom ERP system for three SME clients
  • Supported the replacement of legacy systems with the new ERP solution
  • Provided direct client consulting on process digitization, data migration, and business process optimization
  • Modernized a legacy crisis management system by upgrading PHP and database versions, integrating new APIs (Leitstelle Rhein-Neckar), and developing additional features
  • Technologies: Python (Django, NumPy, Pandas), PHP (Zend1, Symfony), JavaScript, VueJS, Docker, Kubernetes, PostgreSQL
Jun 2017 - Jan 2019
1 year 8 months
Leonberg, Germany

Full Stack Developer

heureka e-Business GmbH

  • Redeveloped the company website using modern web technologies
  • Developed custom tools for time tracking and objective project evaluation
  • Introduced Docker for containerization and optimized development processes
  • Migrated from SVN to Git and conducted Git workshops for colleagues
  • Technologies: ColdFusion, React, JavaScript, Docker, PostgreSQL

Summary

Senior Software Developer with 7+ years of experience in scalable web applications and cloud architectures. Specialized in Python, PHP, React.js, and REST APIs, with up-to-date expertise in GenAI/LLM integration.

Proven track record in enterprise system integrations, legacy modernization, and developing innovative AI-driven business solutions. Experienced in project management, client consulting, and technical team leadership.

Skills

  • Esg Data Provider Apis
  • Python (Fastapi, Django, Flask)
  • Data Analysis, Reporting, And Forecasting Of Esg Data
  • Php (Laravel, Symfony)
  • Integration Into Existing Data Analytics Platform
  • React.js (Redux)
  • Javascript / Typescript
  • Implementation Of Comprehensive Test Automation With Pest/unittest
  • Node.js (Fastify)
  • Rest Apis & Microservices
  • Github Actions
  • Microsoft Azure
  • Aws
  • Angularjs
  • Docker
  • Docker & Kubernetes (Openshift)
  • Llm & Genai Integration
  • Test Automation
  • Relational Databases (Postgresql)
  • Vector Databases (Qdrant, Pgvector)
  • Devops (Gitlab, Github, Ci/cd, Terraform)

Languages

German
Native
English
Advanced

Education

Jan 2013 - Jan 2015

Hochschule Pforzheim

Business Informatics · Pforzheim, Germany

Jan 2007 - Jan 2009

Berufskolleg Robert-Bosch-Schule

State-certified technical assistant, college entrance qualification · Stuttgart, Germany

Certifications & licenses

IHK certified IT-Project Coordinator

IHK

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