Home on Frank Hasenbalg - Programmer & IT Professional

About Me

Sat, 28 Mar 2026 00:00:00 +0000

Hello!

I’m a dedicated Programmer & IT Professional with a strong foundation in software development and IT infrastructure management. I like free and open source technology and continuously learning new tools and methodologies to deliver a products with great value for customers, friends and myself.

Education

Degree in Computer Science - University of Applied Sciences Flensburg
Certifications: Linux Essentials

Professional Summary

With more than 12 years of experience in the tech industry, I have developed expertise in:

Contact

Sat, 28 Mar 2026 00:00:00 +0000

I am open to new projects, creative ideas, and new knowledge. I’m excited to be part of your plans and implementations. Feel free to reach out!

Contact Information

Method	Details
Email	frank@hasenbalg.de
GitHub	github.com/hasenbalg
Location	Flensburg, Germany

Let’s Connect

If you have a question, want to work with me, or simply want to say hello — I look forward to hearing from you!

Available for: Freelance work, consulting, full‑time positions
Response time: Usually within 24–48 hours

Office Hours

Monday – Friday: 8:00 – 16:00
Weekend: Limited availability

Thank you for visiting my website! I look forward to getting in touch with you!

Experience

Sat, 28 Mar 2026 00:00:00 +0000

Professional Experience

Software Engineer

balticfinance | 2023 - Present

Development of monolithic Spring Boot web applications serving hundreds of users with thousands of customers
Maintainance of legacy code
Docker based operation of new services with business partners
Mentored junior developers and conducted code reviews
Technologies: Spring Boot, Java, Postgres, Docker, Python, JS

Co-Founder

anything-it.de | 2022 - Present

Planning and impl. of IT infrastucture
Custom software with Django, Postgres and Docker
Wordpress customization and hosting
Full IT service for small businesses
Maintainance for selfhosted cloud infrastructure like email, document storage, networking

Software Developer

Codin-IT | 2020 - 2023

Projects

Sat, 28 Mar 2026 00:00:00 +0000

Featured Projects

Educational Establishment

Technologies: Proxmox, OPNsense, Nextcloud, Docker, Mailcow, PostgreSQL, Docker, Ansible

A self-sufficient redundant Poroxmox cluster based platform hosting Email, Nextcloud, Backup and more. The deployments/ updates are scripted and immutable.

Key Features:
- Containerized deployments
- All data stay at home
- Fail save

Handball Scoreboard

Technologies: Python, Flask

Born out of the need to host a charity handball game in London. It displays the the current score of a handball game on screen on the venue and in a video stream. Check out Handball Society on YT

Skills

Sat, 28 Mar 2026 00:00:00 +0000

Skills & Expertise

Programming Languages

Python
Strong in automation, scripting, and backend development.

Java
Enterprise-level development and architecture.

Go
Deep experience building backend services and tooling.

JavaScript / TypeScript
Full-stack experience with modern frameworks.

Bash / Shell
Automation, DevOps, and system administration.

SQL
Database design, optimization, complex queries, views and performmance tuning.

Frameworks & Libraries

Backend: Spring Boot, Django, Flask, Go
Frontend: Bootstrap
Mobile: Flutter

Cloud & DevOps

Cloud Platforms: Proxmox Clusters, Hetzner, OVH
Containerization: Docker, Docker Swarm
CI/CD: GitLab CI, Bash
Infrastructure as Code: Ansible

Databases

Relational: PostgreSQL, MariaDB, Sqlite
NoSQL: Redis
ORM: Django, SQLAlchemy, JPA, Jooq, Gorm, Doctrine

Tools & Technologies

Version Control: Git, GitHub, GitLab
Operating Systems: Linux ( Debian, Fedora),
Monitoring: Grafana, Uptime-Kuma
Testing: Mockito, PyTest

Soft Skills

Problem analysis
Team player
Communication
Project Management
Agile/Iterativ Methodologies