Hi! I'm Xander 

At Bol, we migrated from a tightly coupled legacy frontend/backend to a modular NX-based React frontend using TypeScript, React Router, Vitest, and Storybook. Our team owns the Account domain, covering orders, returns, and customer settings. I also consolidated fragmented Java/Kotlin business logic into a single service, Aloha, responsible for the order status.

Using Wix Studio, developed and designed a dynamic, user-friendly website, https://www.thehappydoctor.nl, leveraging Wix and its robust CMS to deliver a responsive, visually appealing design with seamless database integration and optimized SEO functionality. Handling marketing to grow online reach and interaction.

In my second term at Gain.pro, I focused on maintaining and optimising the APP and CMS while developing key data integrations using GoLang. I built import pipelines to integrate data from DealRoom into Gain.pro and implemented export solutions to seamlessly transfer Gain.pro insights into DealCloud customer environments.

At Action.com, we upgraded the tech stack by migrating from a Vue.js application with an EPI Server CMS hosted on Microsoft Azure to a React-based app leveraging Apollo Federation for communication. The new setup runs on Vercel while retaining the existing CMS and integrating Algolia for enhanced search and sorting capabilities.

I developed www.raboelectric.nl for Rabobank, a platform promoting electric vans for small to medium-sized businesses. The website features an intuitive subsidy and financial lease calculator, helping businesses make informed decisions. Built with React and a serverless architecture powered by DynamoDB, it ensures scalability, performance, and seamless user experience.

For NTR, we developed NPOkennis.nl, a dynamic platform featuring videos, stories, series, polls, and quizzes to engage and educate users. Designed for seamless content delivery, the website enhances storytelling and interactivity.

At Gain.pro, a startup providing deep insights into the private equity market, I was part of a small, agile team of four, building their new website and CMS from the ground up. We leveraged React, Redux, and D3.js to create a high-performance, data-driven platform for financial professionals.Tech stack: React,

Contributed to the development of AppieToday.nl, Ahold’s video platform, and created various promotions and widgets for AH.nl. My last project was the redesign of Allerhande.nl, enhancing the user experience for one of the Netherlands' most popular recipe platforms.

At Info.nl, I worked on the Greenwheels project, enhancing their REST API to support a new mobile app that seamlessly integrates multiple applications into one. This upgrade improved performance, scalability, and user experience for car-sharing services.

As Lead Developer at Ahold, I managed a team of 10+ front-end developers across multiple teams, driving the development of key e-commerce platforms, including AH.nl, AH.be, and Etos.nl. Focused on scalability, performance, and UX, we delivered high-impact digital experiences for millions of users.

I created a new Web service for their exiting Vortex Credit Risk system and extended the Risk Rater Web Application with multiple screens using Jfreechart.

At Mirabeau I helped build the vakgilde.nl website from scratch. Building multiple use cases including setup of the database and services to the contract and vacature modules.

I was asked to fix 2 major problems with the Vamos KPN mobile sales Web application. First was the speed of the website, second was the layout of the website.

Solon project at Fortis was the migration of old and very old code of multiple web application to the newly chosen Windows environment.

European Directories wanted a new sales tool for their employees. This included building multiple web portlets and export functionality of different report to PDF.