Freelancer profile translated to English.
Back to original languageAbout Ilan
Senior Backend Developer with **8 years of experience**, I help companies create robust architectures, transition from legacy systems to modern technologies, and optimize DevOps practices.
- **Python/Django Expertise**: Complete mastery of the ecosystem for scalable applications.
- **Modernization & Refactoring**: I am accustomed to transforming complex architectures (e.g., transitioning from SOAP to REST, halving integration complexity).
- **Operational Efficiency**: I automate your processes (saving 7 hours/week on data imports for my previous clients).
- **360° Vision**: Beyond code, I master AWS infrastructure (EC2, S3, Lambda) and best testing practices (100% coverage).
Autonomous, proactive, and experienced in agile environments, I quickly adapt to your tools and business challenges.
French
Native or bilingual
Remote only
Primarily works remotely
Experience
- SEPHIRA – Groupe OrishaSenior Backend DeveloperTECHJuly 2023 - November 2025 (2 years and 4 months)
Modernization of critical architectures and API transition
**Problem**: A complex legacy project (VB.NET/C#) had significant technical debt and high integration complexity due to the use of outdated SOAP protocols.**Solution**: Led the code modernization within a team of 9 people and fully converted SOAP APIs to a modern REST architecture. I also integrated a complex module based on over 250 pages of technical specifications.Result**: **50% reduction in integration complexityfor partners and brought the system into compliance with current market standards. - SEPHIRA – Groupe OrishaExperienced Backend & DevOps DeveloperTECHMarch 2019 - July 2023 (4 years and 4 months)
Design of scalable Cloud architecture and automation
**Problem**: Need to create a large-scale project from scratch (+1000 pages of specifications) requiring high availability and management of large volumes of data (user PDFs). Furthermore, the daily manual import of external databases was error-prone and time-consuming.Solution**: Designed an agile architecture divided into 8 dedicated modules. Implemented **AWS S3for persistent storage, fully automated data imports, and applied **100% test coverage**.Result**: **7 hours of work saved per weekfor the operational team and **100% elimination of human handling errors**. - SEPHIRA – Groupe OrishaJunior Full Stack DeveloperTECHAugust 2017 - March 2019 (1 year and 7 months)
Implementation of BI solutions and infrastructure overhaul
**Problem**: The ESB (Enterprise Service Bus) system had major design flaws preventing smooth data flow, and the company lacked real-time visibility into its key performance indicators.**Solution**: After identifying the design flaws, I oversaw the complete reconstruction of the ESB. I also managed the development of a Business Intelligence (BI) project integrating an ETL via Django and a real-time dashboard using webhooks.**Result**: Delivered a high-performance management tool and secured the company's internal data flows.
Recommendations
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- Management Information Systems and Business Administration degreeMIAGE - UPEC Créteil2016Méthodes Informatiques Appliquées à la Gestion des Entreprises (MIAGE)
- Scientific Baccalaureate, Mathematics specializationLycée Léon Blum2013Baccalauréat Scientifique, spécialité Mathématiques