Portfolio

Full-stack developer building custom WordPress sites and platforms, shipping and maintaining 15+ WordPress platforms for Bram Ladage, Geleidehond, Topbrands, Van der Lelie, PlatformACCT and more.

• Designed reusable component library and faster development processes and tools, saving roughly 1-2 days of work on every new project

• PHP
• WordPress
• Twig
• TypeScript
• React
• SCSS
• MySQL
• Redis
• Docker

Built a full-stack telemetry registering and displaying platform. Designed 3D-printed IoT devices, with a backend that processes the incoming data, and a frontend for visualisation purposes.

• Set up the Azure DevOps CI/CD pipeline the team continues to ship with

• React
• TypeScript
• Next.js
• ASP.NET
• SQL
• C++

Production-grade systematic trading bot, operating autonomously across multiple tickers and timeframes

• Running 4 uncorrelated strategies across multiple tickers and timeframes to maximize time and asset diversification for increased ROI and Sharpe
• Real-time risk management with drawdown kill switches and adaptive sizing
• Strict OOP architecture across layers such as live and paper trader, data source, broker api, cache, notifications, ai optimisation and real-time risk management engine
• PyTorch-driven position scoring with chained validators tuned via Bayesian optimisation with strict walk-forward and Monte Carlo validation built around preventing overfitting
• Multiprocess, highly concurrent execution pipeline keeping the trading loop very fast with heavy focus on speed

• Python
• PyTorch
• NumPy
• Pandas
• Pydantic
• Redis
• Docker

Full-stack personal site and trading toolkit hosting my portfolio, resume generator, prop-firm calculator, trade checklist and accounting importer. Also serves as the backend for Sensor Hub IoT devices.

• Trading toolkit covering prop-firm sizing, pre-trade checklists, and a trading journal
• Backend and frontend for the Sensor Hub IoT devices, handling configuration, telemetry ingestion, noise recording storage and display
• End-to-end type safety from database to UI via tRPC, Zod schema and Drizzle ORM, with Better Auth for sessions and Sentry for production observability
• Strict CI with Vitest unit tests and Playwright end-to-end suite catching regressions before every deploy
• Multiple integrated apps sharing one auth, API and design system: resume generator, portfolio, trade journal, prop calculator, accounting importer

• TypeScript
• Next.js
• tRPC
• Drizzle
• Tailwind CSS
• Better Auth
• Sentry

Full-stack WordPress storefront for Mino Markt & Grill in Alkmaar, with a custom WooCommerce theme covering loyalty, subscriptions, refunds and order pickup.

• Custom WooCommerce storefront covering online ordering and in-store pickup
• Loyalty program, subscriptions, wishlist, and refund workflows
• Strict OOP PHP backend with full type safety and enum usage, with twig based components and blocks.
• Customer-facing front end in Bootstrap and TypeScript with Google Maps store locator and live store availability

• PHP
• WordPress
• WooCommerce
• Twig
• TypeScript
• Bootstrap
• SCSS
• MySQL
• Docker

Self-designed IoT telemetry devices, 3 currently deployed across the Netherlands, continuously streaming temperature, humidity, air pressure and loudness data back to sadra.nl.

• 3 devices currently streaming temperature, humidity, air pressure and loudness data to sadra.nl across the Netherlands
• Modular OOP C++ firmware for ESP32 with one task per peripheral communicating through lock-free queues, so sensing, networking and storage run truly in parallel
• Sub-100 ms boot in release through multithreading and tight task lifecycles, with heavy focus on performance and reliability
• Failsafe layer persisting the last 25 runtime failures for post-mortem analysis, plus encrypted on-device storage keyed off the device MAC

• C++
• ESP32
• IoT
• 3D Printing

A self-driving robot on custom 3D-printed hardware, able to follow a course and avoid obstacles on its own.

• Autonomous driving via TensorFlow on-device inference, navigating a course and avoiding obstacles with no cloud dependency
• Multithreaded C++ firmware running sensing, inference and motor control on separate threads to keep the control loop inside real-time budgets
• Custom 3D-printed chassis tuned for the sensor and motor layout
• Manual override via PS4 / PS5 controller as a safety fallback

• Python
• C++
• Machine Learning
• 3D Printing