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Freelance Python Developer | Django & FastAPI Expert | SQL | REST-APIs | Server Automation

With over 13 years of experience in web projects, I find the right technical solution for every challenge – tailored, efficient, and future-proof.

CV Download

Limited version – Full CV available upon request. Just drop me an email.

Contact Details

  • Phone: +49 8421 6059898
  • Email: info@aitomatisch.de
  • Location: Ingolstadt, Bavaria, Germany (Halfway between Munich and Nuremberg)
  • Availability: Open to full-time/part-time, remote, or hybrid roles within Germany. Mobile by car.

Profile

  • 13 years of experience in software development, software architecture, and test automation.
  • Expert in Python (Django, FastAPI), SQL databases (PostgreSQL, MariaDB, MySQL), REST APIs, and server automation (Ansible, Kubernetes, Helm).
  • Experienced Tech Lead and project manager: 4 years of leadership experience.
  • Working as a Solution Architect since 2022, focusing on Microsoft Cloud (Azure Functions, SQL Services).
  • Specialist in CI/CD automation (GitLab/GitHub, Jenkins) and test automation (pytest, Mocking, behavioral tests).
  • Experienced in agile methodologies: Scrum, Kanban, sprint planning.
  • B.Sc. in Online Media (Hochschule Furtwangen), specialized in web technologies.
  • Top 6% on Stack Overflow – view profile.

Project History

Cloud Application for Energy Management Systems (Dec 2024 – Present)

  • Role: Lead Cloud Engineer
  • Scope: Development, architecture, and scaling of a Django web project for gRPC data processing, analysis, and control of thousands of devices.
  • Technologies: Python, Django, PostgreSQL, Kubernetes, Docker, Ansible, gRPC, Helm, HTML, CSS.

Rest APIs on Azure Cloud for Vehicle Document Processing (Federal Subsidies) (Feb 2022 – Nov 2024)

  • Role: Tech Lead & Solution Architect
  • Scope: Headed software engineering and IT team, developed scalable microservice architecture, led B2B client engagement, and cross-functional coordination.
  • Technologies: Python, FastAPI, SQLAlchemy, MariaDB, Azure (Active Directory, Blob Storage, Functions, App Registry), Vue.js.
  • Key Achievements:
    • Integrated solutions with Volkswagen, Elli, ChargePoint, Carbonify, e3dc, and large German cities (e.g., Stadtwerke Bielefeld/Mainz/Münster).
    • Architected two cloud-based FastAPI services for automated document OCR and consumption data validation.
    • Processed 70,000+ applications, securing €25M+ in funding for customers.
    • Developed a near cost-neutral bulk payout and billing system for tens of thousands of transactions.

Django-based ERP & eCommerce Systems (6-Digit Daily Revenue) (Nov 2015 – Jul 2021)

  • Role: Freelance Web Engineer
  • Scope: Developed browser-based ERP & eCommerce systems, managed servers, and led business intelligence reporting.
  • Technologies: Python, Django/DRF, HTML, CSS, jQuery, MySQL, Docker, Ansible.
  • Key Achievements:
    • Optimized database queries, reducing page load time by 90%.
    • Automated server configuration, cutting deployment time by 80%.

Time Management Tool for Car Prototyping (Oct 2015 – Jun 2016)

  • Role: Freelance Team Lead / Project Manager
  • Scope: Led a team of 5 developers, coordinated with clients, managed Agile sprints, and ensured user training.
  • Technologies: Python, Django, Angular, HTML, CSS, MySQL, Docker.
  • Key Achievements:
    • Delivered rapid feature iterations despite unpredictable developer availability.
    • Completed project under budget and within schedule.

Digital signage & Device Management for Set-Top Boxes (Oct 2013 – Apr 2015)

  • Role: Freelance Engineer
  • Scope: Developed IPTV middleware, managed live TV transcoding, and handled large-scale device control.
  • Technologies: Python, Django, HTML, CSS, Angular, Backbone.js, MySQL, Bash.
  • Key Achievements:
    • Integrated REST APIs to support devices from various manufacturers.
    • Delivered a successful product demo within 14 days despite incomplete source code.

Medical Staff & Expense Planning Tool (Oct 2012 – Sep 2013)

  • Role: Freelance Engineer
  • Scope: Developed a Django-based application for healthcare staffing, expense tracking, and reporting for 10,000+ employees.
  • Technologies: Python, Django, HTML, CSS, jQuery, MySQL, Bash.

Education

  • B.Sc. in Online Media (2006 - 2010) – Hochschule Furtwangen University, Germany
  • Focus: Web applications, software project management, intercultural communication, business studies.
  • Exchange Semester: University of Macau, China (2009 - 2010)
  • Advanced Python (Grade A) – University of Illinois, USA (2012)

Technical Skills

Programming

  • Python (13 yrs), Bash (8 yrs), JavaScript (8 yrs).

Frameworks / Libraries

  • Django (13 yrs), FastAPI (4 yrs), SQLAlchemy (6 yrs), Vue.js (2 yrs), Angular (2 yrs), jQuery (6 yrs).

Frontend / UI

  • HTML (8 yrs), CSS (8 yrs), Jinja2 (7 yrs), HTMX (1 yr).

Databases

  • MySQL/MariaDB (13 yrs), PostgreSQL/PostGIS (4 yrs), SQLite (4 yrs).

DevOps & Infrastructure

  • CI/CD Pipelines: GitHub (4 yrs), GitLab (6 yrs).
  • Automation: Ansible (6 yrs), Helm (2 yrs), Kubernetes (2 yrs), Docker (5 yrs).
  • Cloud: Azure (4 yrs) – Functions, Active Directory, Blob Storage, Token Authentication.

Project Management

  • Team Leadership (4 yrs), Jira (6 yrs), B2B Communication (4 yrs), Specification Design (4 yrs).

Communication Protocols

  • Ajax (8 yrs), WebSockets (1 yr), gRPC (1 yr).

Machine Learning & Data Analysis

  • Keras (1 yr), PaddleOCR (1 yr), Pandas (4 yrs), NumPy (4 yrs).

Languages

  • German: Native
  • English: Fluent (IELTS Academic Band 8/9)
  • Spanish: Advanced (B2)