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👋 Hello, I am

Lesley van Rijn

Full-stack developer with a passion for Typescript

Hello, it's me! Codechef!

I would describe myself as an independent and entrepreneurial programmer who dares to push boundaries and embraces big challenges. After working as a freelance all-round web developer for several years, I have exclusively focused on specialized front-end/javascript development since 2014. Over the past years, I have gained extensive experience with important front-end frameworks/technologies such as React, Angular, TypeScript, NodeJS, HTML5, and CSS3.

The market is constantly evolving, and the front-end landscape changes rapidly, meaning there's always something new to learn. As a result, I invest a significant portion of my free time in personal projects, allowing me to experiment with the latest technologies like Kubernetes and NestJS. Moreover, I'm an avid reader, delving into entrepreneurship and technical literature, which not only expands my knowledge but also provides valuable insights into the latest industry trends and practices.

In 2019, I started a business renting out a self-built photo booth. I personally developed the complete software and control system using React Native (iOS, Objective C) and NodeJS. Since January 2021, I've been working on a project that's slowly growing into a mini-startup - a new multi-vendor platform for meal preparation companies, launching soon.

I'm quite proud of this!

For over 10 years, I've been working for the coolest clients in the Netherlands

Education

Certified Professional for Software Architecture

Certified Professional for Software Architecture (CPSA-F) - iSAQB® – International Software Architecture Qualification Board

May 2023 (Certified)

Bachelor of Communication, Marketing & Communication

Hogeschool Inholland

2010 - 2014

MBO ICT Administrator Level 4

ID College

2005 - 2008

Work Experience

Software EngineerPort of Rotterdam

  • Contributed to the development and migration of legacy systems to a new business-critical application for coordinating and administering safe vessel visits.
  • Built real-time features using GraphQL and WebSockets to support operational workflows for harbor masters.
  • Delivered frontend solutions for multiple mission-critical applications used by harbor authorities in Rotterdam and Amsterdam.

Software Architect · React · Apollo GraphQL · NodeJS · Websockets · Redux Toolkit · NX Monorepo · Playwright · Testing Library · Kubernetes · Docker

September 2024 - present

Software EngineerKLM

  • Designed and implemented a new Backend-for-Frontend (BFF) architecture using Node.js and NestJS for business-critical applications.
  • Built and optimized CI/CD pipelines to enable automated and reliable software deployments.
  • Developed and managed Kubernetes infrastructure to support scalable and resilient applications.

Solution Architecture · Software Development · RxJS · NX · Kubernetes · MongoDB · NestJS · Angular

June 2022 - September 2024

Software EngineerMinistry of Interior and Kingdom Relations

  • Developing a complex React application with lots of interaction and state. Think dashboards, filters, server settings, data visualizations and communicating with APIs
  • Expanding design system with new components and documenting in Storybook
  • Writing unit, integration and E2E tests

React · TypeScript · Redux Toolkit · Material UI · React Testing Library · Cypress · Kubernetes · Docker · HTML5 · Storybook · Java

January 2019 - May 2022

Interested in working together?

Feel free to contact me!

Location

Zoetermeer, South Holland.

Social