Freelancer profile translated to English.
Back to original languageAbout Jérôme
Available from 07/13/2026
Backend & Data Developer — ELK Stack · Java Spring · Automation — AWS Cloud Practitioner
After 3 years as an Associate Software Engineer at Capgemini Engineering in Toulouse, I am launching my freelance career with a profile focused on data engineering and backend development.
At Capgemini, my core business was the ELK Stack — designing Logstash → Kafka → Elasticsearch pipelines, indexing, advanced querying, and Kibana dashboarding — as well as Java Spring development. This is where I have the most technical solidity and perspective.
In parallel, I have developed skills in workflow automation with Make (formerly Integromat), and I have good experience with Wordpress for website and integration needs. I also have a foundation in full-stack web and mobile development (PHP Symfony, Ionic/Angular) acquired through training and personal projects.
I am also in the process of obtaining the "AWS Cloud Practitioner" certification.
What I can bring to a project:
Implementation or optimization of an ELK stack (ingestion, indexing, Kibana dashboards)
Java Spring backend development
Make automation / no-code integrations
Wordpress websites and integrations
PHP Symfony web development
Optimization and migration to the Cloud with AWS
Based in Ariège, available remotely or in Toulouse.
French
Native or bilingual
English
Fluent
Spanish
Conversational
Dutch
Conversational
Remote only
Primarily works remotely
Experience
- Capgemini EngineeringAssociate Software EngineerAVIATION AND AEROSPACEMarch 2023 - Today (3 years and 4 months)Toulouse, FranceMASA — French Ministry of Agriculture, Forestry and FisheriesJune 2025 – November 2025Design and implementation of an end-to-end data pipeline for monitoring fishing-related messages — autonomously and from scratch:
- Monthly import of 50,000 to 80,000 records from PostgreSQL to Elasticsearch via Logstash
- Design of 4 custom Elasticsearch indexes with optimized mappings and routing
- Implementation of 2 Logstash pipelines in production for data extraction and transformation
- Setup of a Kibana dashboard including over 15 visualizations (bar charts, pie charts, KPIs, full-text search)
Airbus Defence & Space — Network MonitoringMarch 2023 – May 2025- Real-time log ingestion pipeline: Logstash → Kafka → Elasticsearch in a production environment
- Processing of SNMP data via Java for ingestion and transformation of network events
- Maintenance and monitoring of pipeline reliability for critical defense infrastructure
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Education
- Bachelor's degree (BAC+4) in application design & developmentENI2022Développement orienté objet, Bases de données, web, mobile, logiciel (Java, PHP, Symfony, Wordpress, Ionic, Angular,...)
- Bachelor's degree in multimedia writing (BAC+3)ISFSC Belgium2013Rédaction de contenu à destination du web, design de logos, création de site dynamique en PHP et base de données MySQL
Certifications
- AWS Certified Cloud PractitionerAWS