CURRICULUM VITAE

Thijs
Stekelenburg.

Software Developer

Thijs StekelenburgDownload CV (Dutch) PDF · Dutch version
PROFILE

Practical thinking.
Careful development.

Software developer focused on backend systems, API development, Flutter applications and data integrations. I study Software Development and independently build software products that turn complex data into useful solutions.

SOFTWARE EXPERIENCE

Work & independent projects.

  1. 2024 – Present

    Independent Software Developer

    Stekelcode

    Developing independent software architectures, including Wealth Hub (a financial portfolio app) and Bitvavo Listing Radar (crypto market monitoring). Working with FastAPI, Flutter, PostgreSQL, SQLite, Docker and push notifications.

  2. 2025 – Present

    Founder & Developer

    Zimplix

    Developing a website management platform with a static-first approach. Experience with structured JSON content, static compilers and product development.

EDUCATION

A foundation to build on.

  1. 2024 – 2027

    Software Development (MBO 4)

    mboRijnland, Leiden

    I would have completed my Software Development programme within two years. Due to demonstrable errors in the examination procedure and its handling by mboRijnland, my final exam was not completed correctly and my graduation has been delayed.

  2. 2023 – 2024

    Engineering Technician

    mboRijnland, Gouda

    The Engineering Technician programme included practical subjects as well as programming. I developed the app for our projects, which led me to switch to Software Development.

  3. 2019 – 2023

    VMBO-T

    Yuverta, Alphen aan den Rijn

    Secondary school diploma obtained.

PROJECTS

In practice.

Wealth Hub ↗

A personal portfolio app that brings together data from different financial platforms and shows my wealth, allocation and performance over time.

FastAPI · PostgreSQL · Flutter · Docker · REST APIs · SQLAlchemy

Bitvavo Listing Radar ↗

A monitoring system that automatically follows several sources and sends a push notification whenever it finds a relevant new listing.

FastAPI · Flutter · SQLite · Firebase Cloud Messaging · REST APIs · Dart

Zimplix ↗

An independent web platform where content can be updated through a simple management interface while the published website is generated as a fully static site.

FastAPI · Flutter · YugabyteDB / PostgreSQL · Docker · JSON
TECHNOLOGY

What I work with.

Backend

Python · FastAPI · Django · Pydantic · REST APIs

Frontend / Apps

Flutter · Dart · JavaScript · HTML5 · CSS3 · Tailwind CSS

Data & Storage

PostgreSQL · SQLite · SQL · SQLAlchemy · Alembic

Infrastructure & Tools

Docker · Git / GitHub · Firebase Cloud Messaging · CI/CD · Automation