Tech Lead
2020 - PRESENTbol.com- Assembled and led the team to redesign and implement company-wide single sign-on integration.
- Led migration of more than a hundred web application microservices to the Google Cloud.
- Assessed and implemented plans to improve the technical health of development teams.
Technologies: System Architecture, Code Architecture, Technical LeadershipFull-stack Software Engineer
2016 - 2018Bol.com- Implemented a microservice that aggregates data from over 20 other microservices to generate an actionable assortment overview for retailers. The technologies used include Spring Boot, Java 8, Reactor, and Angular.
- Designed and implemented a product-content REST API using Spring Boot and Reactor.
- Set up a system for tracking product content updates throughout the Bol.com IT landscape using Spring Boot, Reactor, and Kotlin.
- Established the front-end microservice architecture using Spring Boot and Angular.
- Designed and implemented data intensive applications using GCP, Spring Boot, Reactor, Kotlin, Java 8, PostgreSQL, and Angular.
Technologies: Reactor, Spring Boot, Spring, Google Cloud Platform (GCP), MongoDB, Kotlin, Scala, Java, Lodash, Jenkins, Sass, JavaScript, Angular, AngularJSFull-stack Developer
2014 - 2016MonetDB Solutions- Developed a highly interactive, web-based application that leads its users through their (big) data using Node.js, Express.js, AngularJS, and D3.js.
- Built web-based profiler tool that gives live insights into running database queries using MonetDB, Python, Websockets, AngularJS, and D3.js.
- Created a C-based MonetDB DNA-analysis module that allows life scientists to do efficient in-database analysis on big amounts of DNA data.
- Set up an AWS-based continuous integration process.
Technologies: Amazon Web Services (AWS), Docker, AWS, C, Less, D3.js, AngularJS, MonetDB, Python, Node.jsOwner | Full-stack Web Developer
2008 - 2014R.B.N.Web Development- Translated customer demands into functional (mainly web-based) software applications.
- Designed and implemented a content management system (CMS) to facilitate independent application management by the customers.
- Set up a dating website.
- Refactored and extended a CodeIgniter-based auction web application.
- Implemented a highly optimized C module for MonetDB that enables in-database analyses of DNA data.
Technologies: C, MonetDB, PostgreSQL, MySQL, HTML, CSS, jQuery UI, jQuery, JavaScript, PHP
Robin Cijvat
Software Developer in Utrecht, Netherlands
Member since March 30, 2017
Robin is a driven and enthusiastic full-stack software developer with strong problem-solving skills. He has ample experience with translating customer and business demands into, robust, scalable and visually outstanding software applications. Robin is particularly interested in the development of data-heavy (front-end) applications and complex data visualizations. Some of his favorite technologies include Angular, D3.js, Spring Boot, and Reactor.
Robin is now available for hire
Portfolio
- bol.comSystem Architecture, Code Architecture, Technical Leadership
- Bol.comReactor, Spring Boot, Spring, Google Cloud Platform (GCP), MongoDB, Kotlin...
- MonetDB SolutionsAmazon Web Services (AWS), Docker, AWS, C, Less, D3.js, AngularJS, MonetDB...
Experience
- JavaScript 10 years
- Lodash 6 years
- D3.js 6 years
- REST APIs 5 years
- Java 8 4 years
- Angular 4 years
- Spring Boot 3 years
- Kotlin 3 years
Availability
Part-time
Preferred Environment
Amazon Web Services (AWS), AWS, Google Cloud Platform (GCP), Docker, Git, IntelliJ, MacOS
The most amazing...
...app I've built takes any textual input file, automatically detects its data format, parses it, detects clustering within the data, and visualizes it.
Employment
Experience
- Design and Implementation of a Product Content API
At Bol.com, the product content flows through many microservices before it reaches the webshop. To hide the dazzling complexity of all these processes, I designed and implemented a product content (REST) API.
Technologies: Spring Boot, Kotlin, Reactor, Swagger, GCP - Microservice Data Tracing
ROLE: Tech Lead
As a tech lead, I built a system that traces data uploads throughout several microservices. This system can be used to provide real-time information on the current status of any data upload.
Bol.com is a platform where other businesses can sell their products. To do this, we offer them many channels to upload their product information. The handling of this product information works asynchronously and can take up to several hours. For many years, we provided no feedback whatsoever on these data uploads. Thanks to this tracing system users now get valuable feedback on what happened to their uploads.
Technologies: Spring Boot, PostgreSQL, Reactor, Swagger, Angular, D3.js, GCP - Setup of the Front-end Microservice Architecture
At Bol.com, there are hundreds of microservices making up the IT landscape. However, front-end applications are difficult to split up and divide over several microservices, and therefore these were still built as monoliths.
I played a leading role in several iterations in which we pushed front-end applications into microservices. I set up a big part of the architecture that has been used by many front-end teams at Bol.com over the last three years.
Technologies: Spring Boot, Swagger, AngularJS, Angular - Node.js Database Client for MonetDBhttps://www.npmjs.com/package/monetdb
MonetDB has developed its own protocol: MAPI. Together with other colleagues, I developed a Node.js-based database client that communicates using this protocol with a running database server, to enable Node.js developers to easily query their MonetDB database.
- Rich Data Visualizations at MonetDB Solutions
I developed a highly interactive, web-based application that leads its users through their (big) data without any prior knowledge of that data.
Technologies: Node.js, Express.js, AngularJS, D3.js - Web-based Database Profiler Tool
At MonetDB Solutions, I had access to an experimental feature of MonetDB, which published live profiling information over a socket. I developed a Python web server that listened to this socket, prepared this data for a browser and offered it over a web socket. I built an accompanying front-end application that visualized this profiling information as a live Gantt-chart, conveying information about what was happening on every CPU core.
Technologies: MonetDB, Python, Websockets, AngularJS, D3.js
Skills
Languages
JavaScript, Java 8, Kotlin, Sass, PHP 5, C, SQL, HTML5, CSS, PHP, HTML, Python, Less, Java, C++, Python 3, ScalaFrameworks
Angular, Vanilla JS, AngularJS, Bootstrap 3, Express.js, Spring 5, Spring Boot, Spring, CodeIgniterLibraries/APIs
D3.js, REST APIs, Lodash, Node.js, jQuery, jQuery UI, HTML5 Canvas, ReactorTools
IntelliJ IDEA, Postman, Git, GitLab CI/CD, GitHub, IntelliJ, Jenkins, Rundeck, CucumberParadigms
Object-oriented Programming (OOP), Reactive Programming, Asynchronous Programming, Kanban, Scrum, Functional Programming, API ArchitectureStorage
MonetDB, MySQL, MongoDB, PostgreSQL, AWS S3Other
Code Architecture, SVG, Data Architecture, Data Structures, AWS, Technical Leadership, System ArchitecturePlatforms
Docker, MacOS, Google Cloud Platform (GCP), Amazon Web Services (AWS)
Education
- Master's degree in Computing Science2012 - 2014Utrecht University - Utrecht, The Netherlands
- Bachelor's degree in Computer Science2009 - 2012Utrecht University - Utrecht, The Netherlands
- Diploma (VWO) in Mathematics2009 - 2009High School State Exam - The Netherlands
- Propaedeutic study in Technical Computer Science2008 - 2009Applied University - Utrecht, The Netherlands
