AI Engineer | RAG, LLMs, Agents | Senior Backend Developer | Python, PHP, C#, LangChain, AWS, Azure
Aktualisiert am 27.05.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 27.05.2026
Verfügbar zu: 100%
davon vor Ort: 100%
RAG
Python
PHP
Generative AI
LLM
LangChain
LangGraph
Agentic AI
Tool Calling
Vector Databases
FastAPI
Symfony
Node.js
React
TypeScript
JavaScript
AWS
Azure
Docker
Kubernetes
Terraform
PostgreSQL
REST API
Italian
Muttersprache
German
C1
English
C1
Spanish
B1

Einsatzorte

Einsatzorte

Berlin (+10km)
Deutschland
möglich

Projekte

Projekte

5 years 9 months
2020-02 - 2025-10

Developement and maintained Maintenance Management System

Senior Software Developer PHP Symfony API Platform ...
Senior Software Developer

  • Developed and maintained Maintenance Management System OnCare.Asset for hydroelectric power plants, adapting to client-specific requirements
  • Developed complex shift calendar system for power plants maintenance
  • Implemented dynamic KPI calculations for power plants and paper production plants
  • Delivered PDF maintenance report generation and email notification system
  • Led backend redesign of warranty management solution, replacing legacy system
  • Independently identified and resolved major performance bottleneck in existing code, reducing power plant asset structure loading time by 10x using CTE queries

PHP Symfony API Platform C#/.NET Python MariaDB JavaScript TypeScript Angular Docker AWS Kubernetes Terraform Grafana
Paradigma Software GmbH (Voith)
4 years 1 month
2015-06 - 2019-06

Development of 7 websites

Web Developer PHP MySQL JavaScript
Web Developer

Full-stack development of 7 websites, including a multilingual webshop with 6000+ products

PHP MySQL JavaScript
Direktorenhaus Museum & Johanssen Gallery
1 year 3 months
2014-01 - 2015-03

various Projects

R&D Developer
R&D Developer

  • Developed accessibility IoT solutions for deaf-blind users (Lorm hand and glove)
  • Prototyping Arduino (C++) Raspberry Pi Linux and documentation
  • Cross-functional collaboration with UX and design researchers

Design Research Lab (Telekom Innovation Labs + UdK Berlin)

Aus- und Weiterbildung

Aus- und Weiterbildung

3 months
2019-11 - 2020-01

Professional Development (540 teaching units)

Python & Machine learning Specialist, BTA Berlin
Python & Machine learning Specialist
BTA Berlin

  • OOP, RESTful API, Django, Flask, multiprocessing/multithreading, OpenCV, BeautifulSoup.
  • Data Science & Machine Learning: NumPy, Pandas, TensorFlow, Keras, neural networks (CNN, RNN), KNN, linear regression, SVM, statistics.

Position

Position

  • AI/LLM Engineer
  • Senior Software Developer

Kompetenzen

Kompetenzen

Top-Skills

RAG Python PHP Generative AI LLM LangChain LangGraph Agentic AI Tool Calling Vector Databases FastAPI Symfony Node.js React TypeScript JavaScript AWS Azure Docker Kubernetes Terraform PostgreSQL REST API

Produkte / Standards / Erfahrungen / Methoden

Profile

AI Engineer and Senior Backend Developer with 10+ years building production software. Focused on the application layer of LLMs: RAG systems, agentic workflows, tool calling, and multi-agent architectures on Azure and AWS. Strong Python and PHP foundation with hands-on DevOps. Track record of solving complex problems independently and in cross-functional and distributed agile teams.


Technical Skills

AI/ML Technologies:

  • RAG 
  • LangChain 
  • LangGraph 
  • LangFuse 
  • Agentic AI 
  • Tool Calling 
  • Ollama


Frameworks & Libraries:

  • FastAPI 
  • Flask 
  • Django 
  • Symfony 
  • React 
  • Angular 
  • Node.js


Cloud, DevOps:

  • AWS 
  • Azure 
  • Docker 
  • Kubernetes 
  • Terraform 
  • CI/CD 
  • GitHub Actions 
  • Bicep IaC 


APIs, Architecture:

  • REST 
  • SOAP 
  • WebSockets 
  • API Platform 
  • Swagger/OpenAPI 


Voice/Streaming:

  • faster-whisper (STT)
  • Piper TTS
  • PyAudio
  • VAD
  • SSE streaming


Task Queues, Messaging:

  • Celery
  • Redis
  • AWS SQS (FIFO + DLQ)


AI Dev Tools:

  • Claude Code 
  • GitHub Copilot 
  • JetBrains AI Assistant 
  • Cursor 
  • Perplexity


Methodologies & Tools:

  • Agile 
  • Scrum 
  • Kanban 
  • Jira 
  • Confluence 
  • Notion

Programmiersprachen

Python
PHP
TypeScript
JavaScript
C#/.NET

Datenbanken

ChromaDB/Vector DB
MySQL
MariaDB
PostgreSQL
DynamoDB/NoSQL


Einsatzorte

Einsatzorte

Berlin (+10km)
Deutschland
möglich

Projekte

Projekte

5 years 9 months
2020-02 - 2025-10

Developement and maintained Maintenance Management System

Senior Software Developer PHP Symfony API Platform ...
Senior Software Developer

  • Developed and maintained Maintenance Management System OnCare.Asset for hydroelectric power plants, adapting to client-specific requirements
  • Developed complex shift calendar system for power plants maintenance
  • Implemented dynamic KPI calculations for power plants and paper production plants
  • Delivered PDF maintenance report generation and email notification system
  • Led backend redesign of warranty management solution, replacing legacy system
  • Independently identified and resolved major performance bottleneck in existing code, reducing power plant asset structure loading time by 10x using CTE queries

PHP Symfony API Platform C#/.NET Python MariaDB JavaScript TypeScript Angular Docker AWS Kubernetes Terraform Grafana
Paradigma Software GmbH (Voith)
4 years 1 month
2015-06 - 2019-06

Development of 7 websites

Web Developer PHP MySQL JavaScript
Web Developer

Full-stack development of 7 websites, including a multilingual webshop with 6000+ products

PHP MySQL JavaScript
Direktorenhaus Museum & Johanssen Gallery
1 year 3 months
2014-01 - 2015-03

various Projects

R&D Developer
R&D Developer

  • Developed accessibility IoT solutions for deaf-blind users (Lorm hand and glove)
  • Prototyping Arduino (C++) Raspberry Pi Linux and documentation
  • Cross-functional collaboration with UX and design researchers

Design Research Lab (Telekom Innovation Labs + UdK Berlin)

Aus- und Weiterbildung

Aus- und Weiterbildung

3 months
2019-11 - 2020-01

Professional Development (540 teaching units)

Python & Machine learning Specialist, BTA Berlin
Python & Machine learning Specialist
BTA Berlin

  • OOP, RESTful API, Django, Flask, multiprocessing/multithreading, OpenCV, BeautifulSoup.
  • Data Science & Machine Learning: NumPy, Pandas, TensorFlow, Keras, neural networks (CNN, RNN), KNN, linear regression, SVM, statistics.

Position

Position

  • AI/LLM Engineer
  • Senior Software Developer

Kompetenzen

Kompetenzen

Top-Skills

RAG Python PHP Generative AI LLM LangChain LangGraph Agentic AI Tool Calling Vector Databases FastAPI Symfony Node.js React TypeScript JavaScript AWS Azure Docker Kubernetes Terraform PostgreSQL REST API

Produkte / Standards / Erfahrungen / Methoden

Profile

AI Engineer and Senior Backend Developer with 10+ years building production software. Focused on the application layer of LLMs: RAG systems, agentic workflows, tool calling, and multi-agent architectures on Azure and AWS. Strong Python and PHP foundation with hands-on DevOps. Track record of solving complex problems independently and in cross-functional and distributed agile teams.


Technical Skills

AI/ML Technologies:

  • RAG 
  • LangChain 
  • LangGraph 
  • LangFuse 
  • Agentic AI 
  • Tool Calling 
  • Ollama


Frameworks & Libraries:

  • FastAPI 
  • Flask 
  • Django 
  • Symfony 
  • React 
  • Angular 
  • Node.js


Cloud, DevOps:

  • AWS 
  • Azure 
  • Docker 
  • Kubernetes 
  • Terraform 
  • CI/CD 
  • GitHub Actions 
  • Bicep IaC 


APIs, Architecture:

  • REST 
  • SOAP 
  • WebSockets 
  • API Platform 
  • Swagger/OpenAPI 


Voice/Streaming:

  • faster-whisper (STT)
  • Piper TTS
  • PyAudio
  • VAD
  • SSE streaming


Task Queues, Messaging:

  • Celery
  • Redis
  • AWS SQS (FIFO + DLQ)


AI Dev Tools:

  • Claude Code 
  • GitHub Copilot 
  • JetBrains AI Assistant 
  • Cursor 
  • Perplexity


Methodologies & Tools:

  • Agile 
  • Scrum 
  • Kanban 
  • Jira 
  • Confluence 
  • Notion

Programmiersprachen

Python
PHP
TypeScript
JavaScript
C#/.NET

Datenbanken

ChromaDB/Vector DB
MySQL
MariaDB
PostgreSQL
DynamoDB/NoSQL


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