Roland Schulz
About me
Software dev based in Brno, Czech Republic passionate about OSS, homelabs and half-marathons.
Reach me through LinkedIn or e-mail schullzroll at gmail dot com
Experience
- Data contract management tooling and processes built upon GitOps & Confluent Schema Registry integration as a dependable base for ongoing data platform development efforts
- Custom built responsive web interface based on Bootstrap 4, Javascript and Python Flask to ease the presentation of data contracts and schema evolution, later used as a diagnostics tool by other team members
- Used Jsonnet to automate and solve the issue of efficient GitOps secret management for ETL workflows, later expanded usage to other types of manifests and applications
Communication
- University conference introductory panel on the topic of data contracts and high level ad serving business systems architecture at Seznam.cz
nConnect 25 🎤
First of all, the audience and management of the whole conference was great. Really loved the opportunity to share what I and many others have been working on. I had a fantastic time talking with many other unbelievably inspirational and knowledgeable speakers and audience members - from technical to business

- Participation in a literature reading club, touching on topics like team structure and management [Team Topologies], development architectural decisions [Clean Architecture] and data appreciation at scale [Data Mesh]
- Mentoring of a high school student for two weeks of IT study internship
- work preparation, daily feedback and in-person lectures
- subjects like software lifetime and environment, dynamic and static analysis of software, management of software teams, reproducible deployment through containerization and general tips on Python development
Skillset & Tools
- TDD advocate using testcontainers, xUnit and Cucumber for feature specs
- Agile enthusiast experimenting with ways to increase DevEx
Python 3
- Jupyter Notebooks
- data collection and rendering weekend project visualising public transport delays [results]
- Poetry dependency management
- NetworkX graph analysis
- Z3 SMT using pysmt library
- Airflow DAGs
JVM
Infrastructure & Data
- DevOps, GitOps, CI/CD, TDD, K8s and containers are a hill I will die on
- Self hosting services accessible through Cloudflare
- Grafana, Airflow, Authentik, DBs (Influx, Postgres), this website
Home Lab
A log of all the hardware, software, blood & tears i use to experiment from the comfort of my home.
Plus some thoughts on what to do next


