Jason Roie

Senior Full-Stack Developer @ Billon

Brussels, Belgium

Results-driven Senior Full-Stack Developer with 9+ years of experience specializing in building scalable, high-performance web applications. Highly proficient in Python, Node.js, React, Next.js, and modern backend and cloud technologies. Recognized for strong problem-solving abilities, delivering robust solutions to complex technical challenges. Skilled at collaborating with cross-functional teams, driving agile development processes, and ensuring seamless integration across frontend and backend systems. Passionate about crafting efficient, maintainable code and contributing to dynamic, high-impact projects.

Top roles

Developer Fullstack5 - 10 years

Front-end

Node.js

TypeScript

React

Systems

PostgreSQL

Back-end

Python

Cloud

Docker

Language

Fluent English

English

Fluent

Work experience

Since 2015

Senior Full-Stack Developer @ Billon

01 January 2024 - 30 April 2025

Led the development of AI-driven clinical dashboards using Next.js 14 (App Router), React, and TypeScript. Engineered scalable Python (FastAPI) microservices integrated with PostgreSQL and Supabase.

Full-Stack developer @ Life Is Hard - Work Soft

01 February 2022 - 30 November 2023

Designed and implemented a policy management platform using Django and React, with automated workflows for claims and underwriting.

Full Stack Developer @ Genesis Consult

01 April 2019 - 28 February 2022

Migrated enterprise marketing dashboards from AngularJS to Next.js, leveraging hybrid static and server-rendering techniques.

Front-End Developer @ ITS Group Benelux

01 September 2015 - 30 April 2019

Developed enterprise-level internal tools and customer-facing portals using React.js.

Education experience

Since 2011

Computer Science @ Vrije Universiteit Brussel (VUB)

01 October 2011 - 01 June 2015

Bachelor's degree in Computer Science.