Jonathan Gelin

AI Harness Engineer, Developer Experience | Nx Champion

20+ years shaping how teams deliver software
1,200+ engineers on AI coding tools
Nx Champion recognized by the Nx team

[email protected] LinkedIn Belgium English (fluent), French (native speaker)

Summary

20+ years improving how engineering teams build and deliver software: as developer, architect, tech lead and coach, then on build systems, CI/CD and developer experience at scale.

I help engineering organizations work faster and more consistently. I design the strategy, build the tooling (Nx monorepos, polyglot build systems, release engines, generators and plugins) and coach teams until it sticks. As an Nx Champion, I bring that experience to large, heterogeneous codebases.

AI agents are the next step on that path. Today I roll out AI coding tools at enterprise scale: the harness of skills, rules and plugins that teaches agents an organization's standards, and the telemetry, evals and compliance checks that show they behave. I follow the AI tooling market closely and share what I learn.

Experience

AI-Driven Developer Experience Architect

Swift, Remote

Mar 2026 to now (8 mos)

Supporting the enterprise-wide rollout of AI-assisted development tooling to 1,200+ engineers, embedding AI assistance across the full SDLC while driving adoption of Windsurf (AI coding IDE) from a 200-user pilot to full-scale deployment.

Led the migration from the legacy Windsurf platform to the Cognition platform, including the rollout of Devin across engineering teams
Acted as the enterprise voice towards Cognition, challenging the vendor and pushing the delivery of enterprise-ready features on its roadmap
Designed and implemented an enterprise-wide AI plugin ecosystem (skills, rules, hooks, AGENTS.md) portable across Devin CLI and Claude Code
Created the curated marketplace of official enterprise plugins, covering developer tooling, security guardrails, and SDLC workflows
Built a dedicated plugin to scaffold, validate, and maintain the other plugins of the ecosystem
Implemented an OpenTelemetry and Grafana telemetry system to monitor AI agent usage and drive plugin ecosystem improvements from real usage data

4 more in the PDF

AI-Assisted Development
Windsurf
Devin
Cognition
Claude Code
Plugin Architecture
OpenTelemetry
Grafana
AI Evals
AI Governance
Developer Experience
Change Management

Nx Consultant & Software Development Acceleration

Julius Baer, Remote

Mar 2025 to Feb 2026 (1 yr)

Partnered with the Software Development Acceleration department to streamline and modernize the Software Development Lifecycle across a large distributed repositories ecosystem. My work focused on introducing a scalable architecture powered by Nx, improving consistency, performance, and developer experience across dozens of heterogeneous codebases, while also bringing AI-assisted tooling into key engineering workflows.

Introduced AI-powered tooling by implementing an AI Framework to assist with code analysis, architecture validation, and developer workflows, improving productivity and decision-making across teams
Designed and implemented a new polyglot build system built on Nx with a full plugin architecture
Integrated Nx across distributed repositories using Java, Go, Jib, Helm, Python, and npm
Built a polyglot release engine to unify and standardize release processes across stacks
Automated GitLab CI pipeline generation, removing manual overhead and improving long-term maintainability
Enhanced CI/CD performance through Distributed Task Execution and optimized caching across multiple GitLab runners

3 more in the PDF

Monorepo (Nrwl/Nx)
TypeScript
Maven
GitLab
OpenAPI Specification (OAS)
Cypress
Playwright
ReactJS
npm
pnpm
mise
Continuous Integration (CI)
Micro Frontends Architecture
Single SPA
SystemJS
Webpack Module Federation
Java
Go
Python
Helm
Jib
AI-Assisted Development
Claude Code

Nx Consultant & Full Stack Development Architecture

Caseware, Remote

Mar 2024 to Feb 2025 (1 yr)

Collaborated with the Dev Success Team to maintain and improve a large Central Monorepo (~900 projects) alongside multiple Distributed Monorepos. As an Nx expert, implemented an architecture designed to maximize the benefits of the Nx ecosystem.

Upgraded Nx from v16 to v19.8
Refactored custom utilities from legacy Project Configuration to Nx's Project Graph
Unified and simplified the Monorepo architecture by leveraging Nx Plugins
Unified workflows across multiple tech stacks (JavaScript/TypeScript, Java, Python, Go, .NET)
Streamlined CI/CD GitHub workflows
Paired and coached development teams for better Monorepo integration

2 more in the PDF

TypeScript
Monorepo Architecture
Micro-Frontends Architecture
Nx
Angular
NestJs
GitHub
Webpack
Jest
ESLint
Cypress
DevOps
NodeJs
Yarn
Pnpm
OpenAPI
Webstorm
GitHub Actions
GitHub Copilot
Java
Python
Go
.NET

Architect Team Lead

Entain, Remote

Jun 2023 to Dec 2023 (7 mos)

Oversaw the migration of multiple repositories and projects into an Nx monorepo for Entain. Developed the migration strategy, conducted coaching and pairing sessions with developers, configured the CI/CD pipeline, and ensured effective use of tools to uphold best development practices.

Architected the monorepo with a focus on Angular and .Net
Developed a migration kit with monorepo conventions to streamline integration of external repositories
Deployed various Nx plugins to create custom executors and generators
Established a new process to build multiple themes and integrate them seamlessly into various applications
Implemented a new CI-managed release process
Executed a full CI/CD implementation on GitLab, incorporating Distributed Task Execution and Distributed Caching

3 more in the PDF

Nx
.NET
CI/CD
GitLab
Distributed Task Execution
Distributed Caching
Monorepo Strategy
Development Coaching
Angular
TypeScript

Earlier experience (13 roles)

Software Architect & Tech Lead & Mentoring

Selligent Marketing Cloud, Hasselt, Flanders Region, Belgium · Remote

Apr 2020 to Jun 2023 (3 yrs 3 mos)

Established the new frontend architecture across multiple teams, including coaching/pairing with developers, configuring CI/CD pipelines, and ensuring adherence to best development practices. Migrated a large AngularJS application to a micro-frontend architecture.

Designed the monorepo architecture to group applications, libraries, shared components, and e2e tests
Implemented a micro-frontend architecture using single-spa and Angular
Configured e2e testing processes and tooling using Cypress
Delivered a full CI/CD implementation with Azure DevOps, supporting incremental development
Established best development practices to ensure long-term quality and maintainability
Coached developers on JavaScript functional programming, CI/CD, XP (pair programming, code reviews, training), BDD, and TDD

1 more in the PDF

NodeJS
TypeScript
RxJS
Angular
Tailwind
Storybook
Webpack
Monorepo
Micro-Frontend
Single-spa
Module Federation
SystemJS
ESLint
SonarQube
OpenAPI
Nrwl Nx
SASS
Angular Material
Jest
Cypress
Yarn
WebStorm
Azure DevOps
Docker
Jira
Git
Azure App Insights
Azure Storage

Software Architect & Tech Lead & Agile Coach

Thalys, Brussels Region, Belgium · Hybrid

Nov 2018 to Apr 2020 (1 yr 6 mos)

Configured and led a full-stack software development team, following the Spotify squad model. Supported the team by implementing core architectural components and coaching them on eXtreme Programming (XP) principles. Acted as a bridge between customers and users, guiding them through Agile principles and fostering a continuous development workflow.

Architected a monorepo grouping backend services, frontends, and shared libraries
Designed a frontend architecture with reusable components across multiple applications
Collaborated with the team to define key UI/UX ergonomics
Developed a backend architecture based on microservices
Implemented a caching system using Redis to enhance overall performance
Delivered a full CI/CD pipeline using Docker in a Kubernetes environment

8 more in the PDF

TypeScript
Node.js
Tailwind CSS
Angular
Azure DevOps
Monorepo (Nrwl/Nx)
RxJS
GraphQL
NestJS
Postman API
Yarn
Cypress
Jest
Microsoft Azure
Agile Methodologies
Kanban
GitLab
Docker
Kubernetes
Sass
Redis

Software Architect & Mentoring

Fednot, Brussels Region, Belgium · On-site

Oct 2017 to Dec 2018 (1 yr 3 mos)

Served as the Angular expert, responsible for the frontend architecture used by new Fednot applications. Provided pair coaching and maintained code quality by creating common best practices and components. Also acted as a scrum master, sharing experience in Agile, backend development, and DevOps.

Configured a 'Monorepo' to share Angular/Javascript libraries across applications
Specified good practices related to frontend development
Coached developers in Angular
Coached developers in XP: programming, reviewing, and testing
Worked as a scrum master, defining team workflow with the team
Participated in backend architecture specifications based on microservices

Angular 2+
Angular CLI
Redux
RxJS
TypeScript
SASS
Angular Material
Jest
Cypress
OpenAPI (Swagger)
NodeJS
Yarn
Webstorm
Postman
Bamboo
Jira
Confluence
Git

Software, Front-end Architect

Sodexo, Remote

Jan 2017 to Sept 2017 (9 mos)

Responsible for the new front-end architecture for all Sodexo applications. Provided proof of concepts, samples, documentation, coaching, patterns, and ways of working.

Configured a 'Monorepo' to share Angular/Javascript libraries across applications
Developed libraries for dynamic forms, translation/localization, authentication, remote services, notifications, and error management
Defined and configured a CI process using GoCD and Docker (libraries: build, lint, test, e2e, release, publish on nexus; applications: build, lint, test, e2e, release, deploy on AWS)
Specified and automated unit tests using Karma and Jest
Worked as a scrum master, specifying Jira workflows
Participated in microservices backend architecture specifications

Angular 2/4+
Angular CLI
Redux
RxJS
TypeScript
SASS
Bootstrap 4
Karma
Mocha
Selenium
Jest
Protractor
OpenAPI (Swagger)
NodeJS
Yarn
ExpressJS
IntelliJ
Postman
GoCD
Jira
Confluence
Git
Docker
Nginx
AWS

Senior Java/AngularJS Developer

SWIFT, La Hulpe, Walloon Region, Belgium · On-site

Jan 2016 to Dec 2016 (1 yr)

Responsible for architecture and development (frontend and backend) of a web application used to screen customers.

Coached the team in Agile practices
Reviewed backend architecture, simplifying Maven configurations and splitting the application into modules
Implemented OAuth 2 alongside SAML using Spring Security
Improved usage of Spring frameworks
Integrated a build framework using Grunt and Webpack with ES6
Reviewed folder structure for a business view

3 more in the PDF

AngularJS
Grunt/Webpack
NodeJS
Java 8
Spring
Spring-Boot
Hibernate
Jersey
Maven
Jenkins
Oracle
IntelliJ
Git
Jira
Confluence
RedHat
SAML
OAuth 2

Senior Node.js Developer

RTBF, Schaerbeek, Brussels Region, Belgium · On-site

Nov 2015 to Dec 2015 (2 mos)

Responsible for the analysis, development, and architecture of an application to register user behaviors for a future recommendation algorithm.

Performed functional and technical analysis
Defined the data model
Defined user actions to track
Implemented the front-end script
Implemented the NodeJS module
Performed performance tests using Apache Bench

EcmaScript 6
NodeJS
KoaJS
Gulp
Babel
Atom
NodeLoad
Redis
Elasticsearch
Git

Senior AngularJS Developer

Edebex, Belgium,

Apr 2015 to Oct 2015 (7 mos)

Responsible for analysis, development, and architecture (frontend and backend) of a web application to help companies sell invoices at lower prices.

Provided estimation support (functional analysis and workload estimation)
Designed the application (defined microservices architecture, AngularJS team development conventions/rules, and OAuth2 security solution)
Implemented functionalities (refactored existing code, enhanced architecture, tested functionalities using JUnit)
Provided IT support (coached and supported trainees, reviewed code, supported application users)

Java 8
Spring Boot
Javascript
HTML5
AngularJS
Bootstrap
CSS
Docker
IntelliJ
Git
Gulp
NodeJS
Hibernate
MySQL
Jenkins
Jira
JUnit
Mockito
Scrum
OAuth2

Java Senior Developer & Scrum Master

Thales, Belgium, Tubize

Nov 2013 to Mar 2015 (1 yr 5 mos)

Responsible for development and architecture of an easy-to-use application to set networks of different radio systems. Worked within a six-programmer team.

Provided estimation support (functional analysis and workload estimation)
Designed the application (defined solution to split application into plugins, continuous delivery process (Maven/Jenkins), team development rules, and license control solution)
Implemented functionalities (refactored code, enhanced architecture, configured team environments, integrated automatic processes, tested functionalities using JUnit)
Provided IT support (solved performance issues, reviewed code)

Java/JEE
Swing
Hibernate 3
Spring 4
JGraphX
JIDE
Maven
Jenkins
Confluence
TinyPM
JUnit
H2 DB
XML
Eclipse
IntelliJ
Git
UML
YED
Excelsior
EasyMock
Scrum

Java/JS Lead Developer

ADNEOM, Brussels, Belgium

Aug 2013 to Oct 2013 (3 mos)

Responsible for development and architecture of a new web application (PC & Mobile) with three main tools: Aperform (tracking external employee progress), Atranet (managing internal tools), and Avolution (supporting employee career progression). Worked within a three-programmer team.

Provided business support (technical solution proposals and workload estimation)
Designed the application (defined technical architecture, frontend/backend communication, and entity relationships)
Implemented functionalities (implemented Aperform functionalities and the administration part)
Provided IT support (managed release deployment, coached programmers, reviewed code, solved production issues)

HTML 5
AngularJS
JQuery
Twitter Bootstrap
Node.JS
LESS
CSS
Java/JEE
Maven
Jetty
Spring
Spring MVC
Hibernate
MySQL
IntelliJ
Git
GitHub
Jira
Putty

Senior J2Ee Developer

Roularta Media Group, Louvain-La-Neuve, Belgium

Aug 2012 to Jul 2013 (1 yr)

Responsible for development and analysis of the 'International Information Gateway' (IIG) application, used to request data on international companies via web services.

Provided estimation support (functional analysis and workload estimation)
Designed the application (performed global refactoring, defined WSDL files, and defined the technical architecture)
Implemented functionalities (created a cache implementation, generated Axis2 classes using 'wsdl2code', gathered business requirements, implemented XML mappings using XSLT, tested functionalities using JUnit and SoapUI)
Provided IT support (solved production issues, reviewed code)

Java/JEE
JSP
JSTL
XSLT
JUnit
Axis2
HTML
JS
CSS
Tomcat 7
MySQL
XML
Eclipse
Subversion
Jira
Putty
DocuWiki
WSDL

Consultant Java/JEE

Thalys International (ADNEOM), Brussels, Belgium

Apr 2011 to Jul 2012 (1 yr 4 mos)

Lead developer (1-4 developers) on a fixed-price maintenance contract for two Thalys applications: Localys (real-time traffic monitoring) and Opalys (statistical reporting).

Provided estimation support (functional retro analysis, workload estimation, workload scheduling)
Designed the application (refactored legacy architecture, improved layering and loose coupling using Spring, improved MOM by migrating from JBossMQ to HornetQ, improved persistence by migrating from Oracle 8 to Oracle 11G)
Implemented functionalities (gathered business requirements, implemented using POJO + Spring + Struts (Localys) and POJO + Spring + Swing + POI-HSSF (Opalys), performed unit and integration tests)
Provided acceptance support (defined test plans and provisioned environments)
Provided IT support (defined environments, implemented virtualization using VMware, automated environment configuration, solved production issues, defined migration plans)
Committed to fixed-price constraints (managed time, validation, and follow-up activities through Jira Studio)

Java/JEE
Spring
Struts
Hibernate
Swing
JSP
JSTL
JMS
JUnit
POI-HSSF
HTML
JS
CSS
JBoss
Oracle 11G XE
MySQL
XML
IntelliJ
Subversion
Jira
VMware
HornetQ
JBossMQ

JEE Developer

I.R.I.S. Product and Technologies (European Commission), Brussels, Belgium

May 2007 to Mar 2011 (3 yrs 11 mos)

Responsible for analysis, development, and maintenance of two applications: TMS (resource booking and management) and JCSWeb (reporting application based on TMS data). Worked within a four-developer team.

Participated in functional analysis and wrote analysis documentation using European Commission templates (RUP implementation)
Implemented functionalities (improved usability of HTML forms using Ajax, designed and implemented PDF reports using iText, designed and implemented an applet for automatic PDF printing, created scheduled Oracle procedures)
Provided acceptance support (wrote test scenarios, provisioned environments, created and executed performance tests using Apache JMeter)
Wrote documentation for knowledge transfer to new developers

Java/JEE
Struts
JSP
JSTL
HTML
JS
CSS
WebLogic
Oracle 10G
XML
Eclipse
CVS
Toad
Word
iText
Apache JMeter
RUP
PL/SQL
Ajax

Cold Fusion Developer

European Commission, Brussels, Belgium

Sept 2006 to May 2007 (9 mos)

Maintained the iPerseus application used by European delegations for reporting economic data. Also implemented new HTML/ColdFusion forms and various applications for DG ELARG.

Integrated the European security framework (ECAS authentication service and user role-based authorization)
Implemented new HTML/ColdFusion forms
Performed maintenance (migration, updates)
Implemented various applications using ColdFusion for DG ELARG
Provided knowledge transfer to new developers

ColdFusion 6/8
HTML
JS
CSS
Dreamweaver CS4
SVN
Oracle 10G
SQL/PLSQL
Jira
Toad
ECAS

Education

Bachelor in IT Science
HEB (ESI), Brussels, Belgium, 2003 to 2006

SECONDARY SCHOOL CERTIFICATE (CESS)
COLLEGE ST VINCENT, Soignies, Belgium, 2000 to 2003

Recommendations

Jonathan has become one of the people I trust most when I need to understand the technical side of AI in software engineering.
He is my go-to person for technical questions, not simply because he knows the technology, but because he is constantly exploring it hands-on. He experiments, challenges assumptions and keeps a very close eye on where the ecosystem is going. I regularly ground my own thinking in his insights before making decisions.
Working with Jonathan has also helped me grow technically. He has a natural ability to explain what he has discovered, share the right level of detail and point me towards things I should be paying attention to. In such a fast-moving space, having someone like that around is incredibly valuable.
Jonathan combines deep expertise with curiosity, pragmatism and a genuine willingness to help others learn. He is exactly the kind of technical expert I want beside me when figuring out what comes next.

Thomas Mauroy, Enterprise AI Lead at Swift

Jonathan joined us on a short six-month contract to help plug a gap in our team and tidy up some internal build tooling. Very quickly, it became clear he was having a much bigger impact, and he ended up staying with us for a year. During that time, he reshaped how we think about and work with our tooling from the ground up.
He reworked our build setup into a clean, Nx-based architecture with clear conformance standards, making day-to-day development simpler and more consistent while raising the bar on quality and maintainability. Jonathan also brought strong AI skills to the table, introducing AI carefully and intentionally, only where it genuinely made sense for the team and the product.
On a personal level, Jonathan is enthusiastic about new technology but refreshingly pragmatic and outcome-focused. He is deeply test-driven and helped us put snapshot-based end-to-end testing in place, which massively increased our confidence in releases and noticeably improved the overall developer experience.
If you're a company looking to streamline your tooling, improve engineering standards, and make life easier for your developers, I couldn't recommend Jonathan more highly.

Jose Badeau, Head of Technical Excellence at Caseware

I have had the pleasure to work with Jonathan for around a year, and I can only recommend him for any software development team.
He has the energy and passion, the vision, and technical expertise to drive a team, suggest roadmaps, and implement solutions at an amazing speed and quality. Our project had to manage a wide range of technologies (Maven, Typescript in Node, Jib, Helm, GitLab pipelines, build caching, parallel builds, etc.) and he has been helpful in all aspects.
I am glad I have had the opportunity of working with him, and so will be the engineers of any project he will decide to join in the future.

Miguel Perez Sanchis, Software Engineer at Julius Baer

I had the pleasure of working alongside Jonathan during his time with our team, where he made an invaluable impact as an expert in Nx and Typescript. Jonathan immediately set himself apart by designing a clear and actionable path from our current state to the ideal state of monorepo management. His strategic vision, combined with his ability to communicate complex technical concepts in an understandable way, was a key driver in our team's success.
Jonathan's approach to challenging the status quo was marked by a great deal of empathy and thoroughness. His ability to balance constructive critique with a focus on long-term improvement was invaluable.
His commitment to mentoring developers across the organization and producing extensive documentation played a crucial role in making complex processes accessible to the broader team.
Jonathan is a true professional—highly knowledgeable, collaborative, and dedicated to improving the development experience for everyone around him. I wholeheartedly recommend him for any role requiring deep technical expertise and a passion for driving impactful change.

Ekaterina Zaytseva, Dev Success @ Caseware

14 more recommendations

I've had the privilege of collaborating with Jonathan for over two years at our organization, and I am thoroughly impressed by what he was able to achieve as a freelance Frontend Architect. Jonathan was entrusted with the challenge of leading our teams through the migration of a substantial legacy frontend codebase to a modern, state-of-the-art monorepo, employing a micro-frontend architecture utilizing Angular and Nx. This transition was monumental.
By the time of his departure, he had not only revolutionized our frontend development landscape but also equipped us with a solid foundation and the essential knowledge to keep innovating further. It felt to me like he moved a mountain, and it's incredible how much I learned from him.
I highly recommend Jonathan to any organization seeking a visionary in modern frontend solutions.

Karel Frederix, Senior Software Engineer at Marigold

Working with Jonathan for some years now. He has proven to be a skilled architect, always aiming for solid, clean and maintainable solutions.
At the same time he's a great mentor and coach, taking the time (over and over again) to explain complex topics in an understandable way, while challenging people allowing them to improve.
Learned a lot from him both from a technical point of view as well as good developer mindset.
Definitely recommending him for a broad range of projects!

Maarten Cardinaels, Tech lead at AvioBook

Jonathan was the architect when we migrated from AngularJS to Angular.
He brought a lot (and I mean a lot) of knowledge to the company.
For me personally, he was able to break down difficult things into small bits so we/I could understand them. Even for domain specific things, he would come up with solid solutions. I have never learned this much from anyone, I'm not shy to say he made me a better frontend developer.
Amazing asset to the company and a genuine nice person who cares a lot about his job!

Ben Beckers, Software Engineer bij Selligent Marketing Cloud

Jonathan is an extremely skilled front-end architect with the right mix of knowledge, patience and network to weigh in with authority. Apart from that, he sports a can-do mentality and manages to raise the quality bar across an Engineering department. Sound boarding with him does not get boring: never condescending, always enlightening.
He is one of those rare talents not everyone is lucky enough to work with in their lifetime. If you do, prepare to learn a lot.

Igor Kalders, Engineering Manager at Marigold

Jonathan always had great advice and a clear vision on how to proceed.

Yannick Stockmans, .NET Developer

Working with Jon was a bliss, must-hire!

Steve Keyen, Full Stack Software Engineer

J'ai travaillé avec Jonathan sur un projet de développement d'un outil IT pour les équipes Escales Thalys.
Jonathan a eu à cœur de transmettre ses connaissances avec le reste de l'équipe et a été garant du respect des principes Agile tout au long de notre projet. Son efficacité, son pragmatisme et son expérience nous ont permis de rester au plus près des besoins des utilisateurs et de leur proposer des design novateurs et intuitifs.
J'ai beaucoup appris à ses côtés.

Hanaé Lépine, En transition

Jonathan has been working on a big data Proof of Concept project on a very short term notice. The project was successful and helped us setup a bunch of data to work on. He is a person ready to take the opportunity to do something he doesn't know yet and learn from it. He took the opportunity to enhance his javascript knowledge with us while we had the opportunity to see his ability to handle, document, present and manage a project till the end.

Sébastien Barbieri, Research And Development Manager at RTBF

Jonathan a passé environ un mois en nos murs avec pour mission de développer du js le plus light possible dans le but final de proposer une contenu adapté à nos internautes. Tous s'est très bien passé, Techniquement, ses connaissances en js sont excellentes et c'est un collègue sympathique.

Thierry Melkebeke, Project Manager chez MEDIAGENIX

Jonathan was a tremendous asset for Edebex. He quickly integrated himself into the team, helped solidify our code and improved efficiency for the entire group. He is very knowledgable of many technical domains and can be counted on as a leader and a mentor.

Jon McLennan, CTO/VP Engineering/Tech Lead

Jonathan joined our team as Senior Angular JS / Java developer in a quite difficult moment and accomplished a tremendous work in putting in place a front-end architecture with Angular Js using best practices and providing some quality code. Jonathan is great at coaching and challenging other team members to always go further to arrive to a better product.

Oleg Korolenko, Lead Engineer at Disney Streaming

Jonathan had worked in our IT team during 1 year on a specific project. He is creative and curious, on a technical and also a functional point of view. Attentive to the customer's needs, Jonathan delivers high quality outputs. He made important contributions in the project, coordinating some releases and sharing knowledge with his co-workers.

Jean-Louis Danthine, IT Manager chez Trends Business Information

I've worked with Jonathan during several months. It was a real pleasure: the work was always qualitative, he had a good knowledge of the project and its implementation, he realized a very good monitoring of pending tasks and issues and the documentation was not forgotten.

Laurent Merckx, Java Senior Analyst / Developer

Jonathan is a confirmed JEE developer. First of all he is trustworthy, which is the most important for a manager. Regarding technology, he is skilled in all the main java framework/API of the moment + some HTML/javascript design concepts. He is precise in his work. Humanly, he's a good work fellow: open and demanding.

Richard GUITTER, Enterprise/Data Architect