Senior Python & Django Engineer | GenAI, RAG & API Integration
- Verfügbarkeit einsehen
- 1 Referenz
- 90€/Stunde
- 15345 Petershagen / Eggersdorf
- Weltweit
- de | pl | en | es
- 27.10.2026
Kurzvorstellung
I take applications from business requirements and architecture through implementation, testing, deployment and ongoing production support. My experience includes financial-services and real-estate platforms, multi-tenant AI assistants, document retrieval and secure data workflows.
Auszug Referenzen (1)
"Herr [...] hat uns bei unseren Projekten hervorragend unterstützt!"
5/2017 – 4/2018
Tätigkeitsbeschreibung
- Aufbau und Administration von Webanwendungen (Windows-/Linuxserver, Apache, Django, etc.)
- Softwareentwicklung & Test von Informationssystemen in C/C++, C# und Python
- IT-Beratung zu Testautomatisierungen und IT-Infrastruktur
Testdesign (IT), .Net, C#, C++
Qualifikationen
Projekt‐ & Berufserfahrung
5/2025 – offen
Tätigkeitsbeschreibung
Founder and technical lead, delivering software engineering and IT consulting under the Protech Consulting brand since May 2025. Responsible for team leadership, solution architecture, customer coordination, code review and release approval.
Selected customer-project experience:
- HypZert CHARLI: production RAG assistants with document parsing/OCR, chunking, embeddings, pgvector, streaming, OAuth2, secure documents and role-based access. Platform covering four assistants, 35,000+ documents and 2,000+ active users.
- vdp-RAG / FRITZ: extensible AI assistants for specialist financial knowledge, hybrid retrieval, source links, document summaries, configurable access models, SSE streaming and secure file/API workflows.
- vdpResearch: building-renovation analytics, property-valuation and geospatial databases, municipal financial scoring, portfolio imports and automated PDF/Excel reporting.
Core stack: Python, Django, Django REST Framework, PostgreSQL/PostGIS/pgvector, MariaDB, Redis, JavaScript, Vue.js, Docker and GitLab CI/CD.
Python
10/2018 – offen
Tätigkeitsbeschreibung
Fullstack development, technical consulting and project ownership for financial-services and real-estate software.
Translate business requirements into data models, maintainable backend logic and user interfaces. Develop Python/Django applications, REST APIs, JavaScript/React interfaces, data imports and analytical workflows.
Own architecture decisions, peer reviews, database tuning, automated testing, Docker deployments, CI/CD and release processes. Work closely with business stakeholders and designers; modernise existing applications and support production systems.
Continuous Integration, Docker, JavaScript, Python, React (JavaScript library)
5/2018 – 9/2018
TätigkeitsbeschreibungFuzz testing for grid control systems. Designed a fully automated penetration testing system in Python and integrated testing for C/C++ software as part of my bachelor’s thesis.
Eingesetzte QualifikationenC, C++, Penetrationstest, Python, Qualitätsmanagement / QS / QA (IT), Softwareentwicklung (allg.)
5/2017 – 4/2018
Tätigkeitsbeschreibung
- Aufbau und Administration von Webanwendungen (Windows-/Linuxserver, Apache, Django, etc.)
- Softwareentwicklung & Test von Informationssystemen in C/C++, C# und Python
- IT-Beratung zu Testautomatisierungen und IT-Infrastruktur
Testdesign (IT), .Net, C#, C++
8/2016 – 4/2017
TätigkeitsbeschreibungTest-driven development with C++ and Node.js in a Scrum team. Built automated test systems and performed static code analysis using Python and JavaScript.
Eingesetzte QualifikationenC#, C++, JavaScript, Python, Test Automation
4/2016 – 8/2016
TätigkeitsbeschreibungDeveloped Django web applications and operated Linux/Apache servers. Scraped, analysed and visualised large datasets using Python, Scrapy, NumPy and Matplotlib.
Eingesetzte QualifikationenApache, CSS (Cascading Style Sheet), Django, HTML, JavaScript, Jquery, Node.Js, Python, React (JavaScript library), SQL
12/2015 – 4/2016
TätigkeitsbeschreibungDeveloped web applications with PHP, JavaScript, jQuery and HTML/CSS. Worked with MySQL databases, Apache and Ubuntu.
Eingesetzte QualifikationenApache, CSS (Cascading Style Sheet), HTML, JavaScript, Jquery, Mysql, PHP, Ubuntu
Ausbildung
HTW Berlin
Berlin
Über mich
Generative AI and RAG: production assistants with document parsing and OCR, chunking, embeddings, pgvector, hybrid retrieval, source links, streaming responses and role-based access. My project experience includes a platform for four AI assistants with 35,000+ documents and 2,000+ active users.
Python platforms and APIs: fullstack development with Django, Django REST Framework and FastAPI; data modelling, REST interfaces, asynchronous processing and database performance tuning.
Financial services and real estate: property valuation and geospatial data, building-renovation analytics, municipal financial scoring, portfolio imports and automated PDF/Excel reporting.
Delivery and technical leadership: requirements analysis, solution architecture, code reviews, automated testing, GitLab CI/CD, containerised deployments, monitoring and release ownership. I work closely with business stakeholders and development teams, including modernisation of existing systems.
Weitere Kenntnisse
Frontend: HTMX, JavaScript, HTML5, CSS3, Bootstrap, Vue.js, React.
Data: PostgreSQL, PostGIS, pgvector, MariaDB/MySQL, MSSQL, Redis.
AI: LLM integration, retrieval-augmented generation (RAG), OpenAI, LangChain, embeddings, semantic and hybrid search, document processing and OCR.
Delivery: Docker, GitLab CI/CD, Linux, Nginx, automated testing, observability and release processes.
Additional experience: OAuth2, secure file and API workflows, geospatial applications, Python data analysis, C/C++, C# and test automation.
Persönliche Daten
- Deutsch (Muttersprache)
- Polnisch (Muttersprache)
- Englisch (Fließend)
- Spanisch (Grundkenntnisse)
- Europäische Union
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