Christian Worsch - Senior Full-Stack Developer

Q: Where is Christian based?

Christian is based in Wurmberg, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does Christian speak?

Christian speaks the following languages: German (Native), English (Advanced) .

Q: How many years of experience does Christian have?

Christian has at least 8 years of experience. During this time, Christian has worked in at least 5 different roles and for 6 different companies . The average length of individual experience is 1 year and 4 months . Note that Christian may not have shared all experience and actually has more experience.

Q: What is Christian's latest experience?

Christian's most recent position is Senior Full-Stack Developer at Quantrefy GmbH .

Q: What companies has Christian worked for in recent years?

In recent years, Christian has worked for Quantrefy GmbH , dmTECH GmbH , Cobrainer GmbH , and BCM Solutions GmbH .

Q: Which industries is Christian most experienced in?

Christian is most experienced in industries like Information Technology (IT) and Professional Services .

Q: Which business areas is Christian most experienced in?

Christian is most experienced in business areas like Information Technology (IT) , Product Development , and Project Management . Christian also has some experience in Business Intelligence .

Q: Which industries has Christian worked in recently?

Christian has recently worked in industries like Information Technology (IT) and Professional Services .

Q: Which business areas has Christian worked in recently?

Christian has recently worked in business areas like Information Technology (IT) , Product Development , and Project Management .

Recommended expert

Wurmberg, Germany

Experience

Apr 2025 - Present

11 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

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (8 years) and Professional Services (1.5 years).

Information Technology

Professional Services

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (8 years), Product Development (6.5 years), Project Management (1.5 years), and Business Intelligence (1 year).

Information Technology

Product Development

Project Management

Business Intelligence

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

Profile

Created

August 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Christian based?

Christian is based in Wurmberg, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Christian speak?

Christian speaks the following languages: German (Native), English (Advanced).

How many years of experience does Christian have?

Christian has at least 8 years of experience. During this time, Christian has worked in at least 5 different roles and for 6 different companies. The average length of individual experience is 1 year and 4 months. Note that Christian may not have shared all experience and actually has more experience.

What roles would Christian be best suited for?

Based on recent experience, Christian would be well-suited for roles such as: Senior Full-Stack Developer, Backend Developer, Technical Implementation Engineer.

What is Christian's latest experience?

Christian's most recent position is Senior Full-Stack Developer at Quantrefy GmbH.

What companies has Christian worked for in recent years?

In recent years, Christian has worked for Quantrefy GmbH, dmTECH GmbH, Cobrainer GmbH, and BCM Solutions GmbH.

Which industries is Christian most experienced in?

Christian is most experienced in industries like Information Technology (IT) and Professional Services.

Which business areas is Christian most experienced in?

Christian is most experienced in business areas like Information Technology (IT), Product Development, and Project Management. Christian also has some experience in Business Intelligence.

Which industries has Christian worked in recently?

Christian has recently worked in industries like Information Technology (IT) and Professional Services.

Which business areas has Christian worked in recently?

Christian has recently worked in business areas like Information Technology (IT), Product Development, and Project Management.

What is Christian's education?

Christian attended Hochschule Pforzheim for Business Informatics.

Does Christian have any certificates?

Christian has 1 certificate: IHK certified IT-Project Coordinator.

What is the availability of Christian?

Christian is immediately available part-time for suitable projects.

What is the rate of Christian?

Christian's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.