Freelancer profile translated to English.
Back to original languageAbout Arthur
I am Arthur Vercaemst, Tech Lead and application/infra architect, specializing in full-stack JavaScript/TypeScript development, data engineering, and application modernization.
Independent for several years, I work on critical projects requiring technical expertise, architectural vision, and team leadership.
I have led various missions ranging from taking over legacy applications (TypeScript / RedwoodJS) to setting up large-scale data platforms (DataVault, Fabric, PySpark), including the deployment of complex business solutions like an Orthanc PACS for 35 clinics and 150 TB of medical imaging.
I have also managed the creation of internal solutions like Forméleon (NestJS / Angular) and automated strategic processes such as payroll matrices for 3000 employees across 280 agencies.
My role goes beyond development:
- Tech Lead for several teams (2 to 3 devs/engineers depending on the projects)
- Application & Infra Architect (NestJS, Angular, GitHub CI/CD, Terraform, Ansible, IaC)
- Data Engineer (People/Entities repository, DataVault, Fabric, PySpark)
- Technical leadership: security, scalability, quality, best practices, observability
- Support for business teams and product coordination
I master a modern ecosystem today:
TypeScript, Node.js, NestJS, Angular, React, Terraform, Ansible, GitHub/GitLab CI/CD, Power Apps/Automate, Microsoft Fabric, PySpark, Docker, GCP, and integration of specialized tools (Orthanc, RedwoodJS…).
I am looking for new opportunities as a Tech Lead, Technical Manager, or Technical Expert, to design robust, secure, and scalable architectures, and to support teams in the success of their projects.
Feel free to contact me to discuss.
French
Native or bilingual
English
Fluent
Spanish
Conversational
Can work on-site
Lille (up to 50km)
Experience
- IVC Evidensia FranceTech Lead – Full-Stack & Data EngineeringFebruary 2024 - Today (2 years and 4 months)Villeneuve-d'Ascq, FranceI contributed to the modernization, security reinforcement, and industrialization of several critical products while acting as an application architect and infrastructure architect. My responsibilities ranged from taking over and refactoring legacy applications to setting up large-scale data platforms.Team:PACS: 1 PO, 2 developersForméleon: 1 PO, 2 developersData: 1 PO, 3 data engineersMissions:Took over and modernized several legacy products developed in TypeScript (RedwoodJS), including migration to a new cloud provider, strengthening application security, and continuous product improvement. Implemented and optimized CI/CD pipelines to ensure reliable and efficient delivery.Automated payroll calculation matrices for 3,000 employees across 280 agencies using Power Apps and Power Automate. Managed the project entirely in direct collaboration with business teams.Implemented a PACS solution for 35 clinics, representing approximately 150 TB of medical imaging. Created automated deployment and management scripts with Ansible, set up end-to-end tests via Playwright, configured GitHub CI/CD workflows, automated cloud backups, orchestrated services with Nest.js, and performed infrastructure deployments via Terraform.Designed and developed Forméleon, a business workflow and form automation solution (Nest.js / Angular). Led the implementation of a multi-instance architecture, GitHub CI/CD, and IaC using Terraform.Set up the company's People & Entities repository and designed the France Data Warehouse based on a DataVault architecture. Performed multi-ERP ingestion, unified modeling of the silver layer, and created a standardized gold layer for reporting, using Microsoft Fabric and PySpark.
- ADEO ServicesFull-Stack NodeJS React DeveloperRETAIL (LARGE RETAILERS)April 2023 - December 2023 (8 months)Villeneuve-d'Ascq, FranceKazaplan is a professional online 3D design software that allows easy creation of house and apartment plans, accessible to both professionals and hobbyists.Team: 1 PO, 4 full-stack devs, ½ QACollaborated on migrating existing functionalities to a new API, ensuring service continuity and optimizing back-end processes.Assisted in the redesign of the authentication system, implementing modern security mechanisms that reduced potential threats.Contributed to the development of new front-end features in React.Participated in the creation of a new Nest.JS API (TypeScript) for Kazaplan, applying advanced security standards that helped strengthen user data protection and improve application stability.Redesigned continuous integration and deployment processes for cloud functions on GCP, contributing to faster deployment and improved cloud infrastructure management.Developed new features for the API, providing technical support for innovative solutions that expanded Kazaplan's functional capabilities.
- UNVOIDStartup specializing in motorized home automationHEALTH AND WELLNESSDecember 2022 - December 2022Lille, FranceMission:- Developed a touch control panel to operate a ceiling storage prototype via Bluetooth. Electron JS on Raspberry Pi, C++ on ESP32.
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Education
- Engineering degree, Computer Science Microelectronics and AutomationPolytech'Lille2022Diplôme d'ingénieur, Informatique microélectronique et automatique
- Polytech Engineering Schools Pathway, Preparatory ClassesPolytech'Lille2019Parcours des Ecoles d'Ingénieurs Polytech, Classes préparatoires