Freelancer profile translated to English.
Back to original languageAbout Abdarrahmane
With four years of experience in back-end development (Python, FastAPI, Django, REST API), I have designed, optimized, and deployed secure REST APIs and scalable system architectures.
Certified by AlgoExpert in algorithms and software architectures, I specialize in optimizing API and SQL query performance, securing access via OAuth 2.0 and Single Sign-On (SSO), and designing optimized workflows for data flow management for robust systems. I have gained experience in various sectors, including banking and finance, ERP/CRM, e-commerce, and construction.
AREAS OF EXPERTISE
• Python, FastAPI, Django Development
• RESTful API Development and Integration
• Performance Optimization
• High-Performance and Scalability Systems Management
TECHNICAL SKILLS
• Languages: Python
• Python Frameworks: FastAPI, Django
• Databases: MySQL, SQL SERVER, SQLite
• Infrastructure & Deployment: AWS, Docker, Git, CI/CD (GitHub Action)
• API Standards and Security: OAuth 2.0, SSO, JWT, Postman
French
Native or bilingual
English
Fluent
Arabic
Native or bilingual
Can work on-site
Paris (up to 50km)
Experience
- Société GénéralePython DeveloperBANKING AND INSURANCEMarch 2025 - Today (1 year and 5 months)Paris, FranceDevelopment of REST and GraphQL APIsFull Stack Development (Django, Vue.js)Performance Optimization
- ID InformatiquePython, REST APIJuly 2024 - December 2024 (6 months)Paris, France
- SEPA API Integration
- Integration of the SepaMail API for IBAN validation in a B2C/B2B CRM softwareDebit management and real-time monitoring, ensuring GDPR compliance and processing of 1000 weekly transactions - ID InformatiquePython, REST APIJuly 2023 - June 2024 (1 year)Paris, France
- Private API for e-commerce site and SAGE accounting software integration:
- Development of a private API with 15 endpoints to synchronize data between e-commerce sites and SAGE- Improvement of operational flows and data management- Reduction of integration time from 10 days to 5 minutes- CRM Improvement via REST API
- Optimization of SQL queries and CRM APIs for real-time searches on 26,000 records (including optimized database indexing)- Automation of data integration via Python scripts, reducing manual errors and speeding up the processing
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Education
- Master in Computer ScienceEPSI - The Computer Engineering SchoolDéveloppement Informatique
Certifications
- API Systems Design and Implementation CertificationApiMasters2025
- API DesignerAPI Academy2024