Tadeusz de Ruijter - Full Stack Developer, Jidouka

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Work Background

JidoukaCo-Owner & AI Technology Director

Jan. 2024Rotterdam, South Holland, Netherlands · HybridJidouka helps with today’s biggest business challenge; imagining and building trailblazing AI solutions.

Erasmus Centre for EntrepreneurshipFull stack developer

Sep. 2023 - Jan. 2024Rotterdam, Zuid-Holland, Nederland · RemoteThe Erasmus Centre for Entrepreneurship is Europe's leading entrepreneurship center. Fueled by the conviction that entrepreneurship is the cornerstone of innovation, our mission is to embed the entrepreneurial spirit into people's DNA, utilizing the knowledge and network of Erasmus University Rotterdam; a university founded by entrepreneurs over 100 years ago.

NPRCFull stack developer

Jun. 2023 - Nov. 2023Rotterdam, Zuid-Holland, Nederland · HybridAs a full stack software engineer at NPRC, I played a key role in digitizing logistics business processes for the shipping industry. I was responsible for developing digital charter forms, creating a comprehensive GPS tracking solution, and automating inventory data retrieval for prestigious clients like Heineken and Tata Steel. In collaboration with the Solution Architect, we developed a microservices architecture within the Azure ecosystem. My contributions helped in setting up DevOps practices, Infrastructure as Code (IaC), and developing serverless functions with Node.js and TypeScript. - Engineered backend systems with Node.js and TypeScript for GPS services, client data exchange, and digital charting form functionalities. - Helped develop user interfaces using React.js, Next.js, and Tailwind for these applications. - Managed databases using NoSQL with MongoDB and SQL with PostgreSQL. - Implemented Infrastructure as Code with Terraform, focusing on modular configuration for improved reusability. - CI/CD pipelines using GitHub Actions, optimizing code review, testing, and deployment workflows. - Cloud solution integrating service buses, serverless functions, databases, VMs, logic apps, and WebSockets. - Monitored governance within Microsoft Azure, setting standards for deployments. - Emphasized the importance of documentation, best practices, and leading the team towards a cloud-native mindset.

IKEAFull stack developer

Jan. 2021 - Jun. 2023Delft, Zuid-Holland, Nederland · RemoteHelping improve the usability of the 'IKEA franchise concept' for a better coworker experience. A full-time assignment to create a better way of delivering knowledge and learning to enable a better workflow for +/- 220.000 co-workers across the world. Our application engages a better understanding of the 'IKEA franchise concept' which leads to a better overall customer experience. - Focused on front end development using JavaScript and TypeScript with React.js. - Collaborating on and contributing to the SKAPA design system, which is built with Storybook, utilizing a component-based approach. - Ensuring high-quality software through documentation and testing (Unit and E2E testing) - Delivered a WCAG 2.1 compliant front end that is accessible to users with diverse abilities - Integrating Auth0 for a seamless single sign-on solution. - Collaborated on backends using Serverless Functions, and REST APIs, as well as GraphQL with Apollo and NEO4J. Leveraged GraphQL types in conjunction with Apollo Codegen to display data. - Collaborating with DevOps engineers to establish an Azure Cloud environment. - Utilizing Github Actions for continuous integration and deployment - I have gained valuable knowledge through my experience with pentesting, allowing me to proactively identify and prevent potential security threats in application development.

EVBoxFront end Developer

Jul. 2020 - Dec. 2020RemoteEVBOX is a leading provider of electric vehicle charging solutions and services. During my time at EVBOX, I served as a freelance front-end developer. I was responsible for working on a key application that connects electric vehicles to charging stations. My work was crucial in delivering a seamless and user-friendly experience for EV drivers. - Contributed to the migration from an Angular project to a Vue project. - Adopted Vuex for state management, improving the overall structure and maintainability of the codebase. - Implemented a utility-first CSS framework (Tailwind). - Wrote comprehensive unit tests using Jest, ensuring the reliability and stability of the application, reducing the risk of bugs and downtime.

AllianderBack end Developer

Sep. 2019 - Jul. 2020RemoteAlliander is a Dutch energy infrastructure company that provides energy and data networks for homes and businesses. As a back-end developer, I was a part of the team that helped develop a project management solution for expenses. The team used to rely on an Excel sheet, but we improved the process by building a custom application. This new solution streamlined the expense management process, resulting in increased efficiency and cost savings for the company. - Established a robust, scalable and secure Node JS with Express backend that integrates seamlessly with SAP HANA Databases, providing an API-driven headless backend for the front-end dashboard. - Implemented an automated deployment pipeline using Jenkins, which allowed for efficient, streamlined and error-free deployments. - Combined Vue JS with SAPUI5 to develop user-friendly and highly responsive front-end dashboards, allowing for quick releases of new features and enhancements. - Improved project management and onboarding processes by creating detailed documentation on Confluence and developed a seamless user experience by implementing SAP SSO with Node JS.

VerveFull stack Developer

Jul. 2019 - Sep. 2019Den Haag, Zuid-Holland, Nederland · RemoteDuring my three-month assignment as a technical support engineer at Verve Agency, I made significant contributions by fixing bugs and developing new features for a diverse portfolio of cultural clients. Despite having limited prior knowledge of Laravel, I was able to prove my ability to tackle any challenge and find effective solutions, even when outside of my comfort zone in terms of technical expertise. - Provided technical support to Verve Agency for a period of 3 months focused on bug fixing and feature development for various cultural clients. - Started with no prior knowledge of Laravel but quickly adapted and provided solutions. - Demonstrated my ability to take on challenging tasks and find solutions outside of my comfort zone. - Showcased strong problem-solving skills and adaptability to new technology stacks.

RedkiwiFront end Developer

Jan. 2019 - Jul. 2019Rotterdam, Zuid-Holland, Nederland · RemoteOrange Cyberdefense is a premier provider of cybersecurity solutions and services. I was privileged to support Red Kiwi as a front-end developer, contributing to the team's efforts. My involvement included taking on a significant amount of the workload, allowing my colleagues to focus on other important tasks. My main responsibility was to integrate the front end with a Typo3 backend. - Assisted Red Kiwi as a front-end developer - Supported the team with a significant portion of the workload - Connected the front end to a Typo3 backend - Used webcomponents and custom SCSS styling. - WCAG 2.1 compliant, ensuring accessibility for users with disabilities

HatlessFront end Developer

Jul. 2018 - Sep. 2019Remote · RemoteI feel a Need….. The Need for Speed! That's why I helped Hatless build a blazing fast design system that focuses on maximum SEO performance and accessibility. Due to the heavy focus on SEO I have set-up a static JAMSTACK environment while keeping core web vitals in mind. In addition my activities also included setting up CI/CD pipelines, allowing content managers to continue their work without the help of a developer. All built with Next.js. - Front end using React.js / Next.js. Using Tailwind as a utility first CSS library. - Implementing a headless CMS solution with Storyblok for dynamic content management. - Streamlining deployment with Vercel's and CI/CD processes on Github. - Using webhooks to push changes to a dev environment and production. - Prioritizing technical SEO and web optimization, including structured data, core web vitals, XML sitemaps, and Robot.txt. - Developing the application as a progressive web app for enhanced user experience.

BuroContent | Online MarketingWordpress Developer

Jul. 2018 - Sep. 2019Remote · RemoteDelivering digital platforms at a fast pace every 2/3 weeks. Sounds almost impossible right?! By making use of my own Design System and components library I was able to deliver a variety of platforms built on PHP such as e-commerce-, job boards- and lead-gen platforms. My activities for Buro Content mainly focused on developing user-friendly Wordpress websites. - Developing custom Wordpress templates using PHP. - The implementation of a headless WordPress setup featuring custom REST API routes. - Development of custom, object-oriented PHP functions to extend the capabilities of WordPress. - Adoption of a modern, component-based approach to web development. - Integration of advanced plugins such as WooCommerce, ACF Custom Fields, WPML, and others to provide a comprehensive user experience.

301 DigitalFront end Developer

Jul. 2018 - Sep. 2019Utrecht, Nederland · RemoteAt 301 Digital, I played a key role in creating an international gaming comparison platform that put a strong emphasis on both usability and technical SEO. This was achieved by utilizing Next.js to create a static site. Since the company had limited experience in development, I helped by establishing a CMS that was both flexible and user-friendly, enabling their content managers and marketers to effortlessly create their own custom page templates. - Developed a front end with Next.js / React.js - Setup a headless CMS with Contentful. - Adopted a modular design approach, working with components and Storybook. - Using Bootstrap CSS library and custom SCSS functions and mixins based on BEM methodology. - Technical SEO, structured data, XML sitemaps, and multi-language support through i18n. - Streamlined the development process with automated CI/CD pipeline using Vercel. - Cloud-based solutions hosted on Digital Ocean for reliable and efficient deployment.

Divid AppFront end Developer

Jan. 2015 - Jul. 2018Rotterdam Area, Netherlands · On-siteWith a group of friends, we brought our construction startup idea to life. Utilizing the power of React & React Native, we developed a cutting-edge mobile app designed to meet the needs of the construction industry. The app enables users to associate photos and information with specific locations, streamlining project documentation and ensuring that all stakeholders have real-time access to progress updates. - Created a cross-platform mobile application using React Native. - Utilized MongoDB as the data storage solution. - Leveraged Azure cloud platform to host the application. - Constructed a Node JS + Express API route connected to MongoDB as a headless solution. - Developed a user dashboard that allowed users to manage their projects and export PDFs linked to the same backend system.

Joe Benelli Home and LivingFront end Developer

Jul. 2014 - Dec. 2014RemoteAt Joe Benelli Home and Living, a leading provider of interior products for over a decade, I assisted the marketing team in realizing their conversion strategies. This was achieved through the use of JavaScript to manipulate the DOM. In an agile environment, we experimented with new concepts every 2 to 3 weeks on multiple ecommerce platforms, allowing me to enhance my development speed by testing small business ideas. - Javascript DOM Manipulation with modern javascript techniques. - HTML based on w3school. - CSS / SCSS based on components. - CI/CD testing and pushing ideas to production and live environments. - Learned a lot about marketing and conversion optimization.

Indicia InteractivWordPress Developer

Jan. 2011 - Dec. 2013Breda, Noord-Brabant, NederlandAt Indicia, the focus goes beyond just creating digital solutions, it's about crafting digital products from a business perspective. As the company was struggling to keep up with supporting a few clients, I stepped in to provide both Development support and comprehensive content management training. During my time there, I gained a deeper understanding of the concept of brand experience and was involved in creating elevated experiences for clients such as Heesen Yachts.

F4EAWordPress Developer

Jan. 2009 - Dec. 2014Rotterdam, NetherlandsThe owner of F4E asked me to help him develop concepts for the soccer industrie. I have built dozens of fan sites for semi pro soccer players, have developed a custom soccer coach platform and helped F4E to develop a personal soccer game that helps kids who struggle with math.

Nomad VenturesFull stack developer / Consultant

Jan. 2008Rotterdam en omgeving, Nederland · HybridCompanies often hire me as a full-stack developer. I mainly focus on JavaScript & TypeScript applications (Using React.js / Next.js and Node.js), Cloud architecture, Accessibility and Design Systems. The focus on highly competitive markets and over 15 years of development experience have given me an edge in development speed, agile approach, and efficiency as my most valuable assets. - Over 15 years of experience in JavaScript and more than 5 years in TypeScript. - More than 7 years of experience with frameworks such as React.js and Next.js. - Proficient in unit testing and E2E testing utilizing Vitest, Jest, Cypress or Playwright. - Specialize in component-based development and setting up design systems with Storybook. - Backend development in Node.js using Express or GraphQL with Apollo. - I am capable of managing headless CMS environments, I mostly use Storyblok for my clients. - Skilled in database management, including NoSQL, SQL, and graph database technologies such as Neo4j. - Well-versed in cloud architecture with a focus on Azure Cloud services. - Experienced in setting up containers with Docker, and Infrastructure as Code with Terraform. - Proficient with web bundlers like Vite and Webpack, and configuring ESLint rules. - Experienced in CI/CD with GitHub Actions, Netlify, GitLab, Jenkins, Heroku, Vercel, and Azure DevOps. - Expertise in CSS styling utilizing SCSS, BEM methodology, utility-first frameworks such as Tailwind, styled-components, and Bootstrap. - Experienced in software architecture, ensuring systems are scalable, maintainable, and well-suited to adapt to the changing demands of the business. - Knowledgeable in technical SEO aspects including Core Web Vitals, structured data, XML sitemaps, and multi-language site configurations.

SloddervosgangJunior Front-end Developer

Jan. 2008 - Dec. 2011Rotterdam, Zuid-Holland, NederlandAs a young developer, I was fortunate to collaborate with various renowned and upcoming artists to create fan pages for music. Operating in this dynamic industry honed my ability to promptly seize business opportunities. I was challenged to design and build component-based fan pages at a rapid pace, on a weekly basis.

Nederlandse Vereniging voor Ouders van Meerlingen (NVOM)Junior Front-end Developer

Jan. 2005 - Dec. 2008Rotterdam, NetherlandsI launched my career as a Junior Front-end Developer at the Nederlandse Vereniging voor Meerlingen. My role entailed a diverse range of responsibilities, such as minor visual improvements, front-end development using HTML, PHP, and CSS, adding content as a content manager, and handling technical website upkeep.