Abdelhalim CHEKROUN
Lead Python Developer | Domain-Driven Design
Salary / Daily rate
Paris, France
Mobility: Paris
Freelance
Can come onsite
Skills
Languages
About me
Intro
Lead Python Engineer with 8+ years building scalable APIs and microservices architectures. Expert in Django/FastAPI development with proven success migrating legacy systems, implementing DDD patterns, and reducing deployment time through automated CI/CD pipelines. Specialized in Python tech leadership, observability solutions (Grafana/Prometheus), and delivering production-ready applications with strict code quality standards.
Work experience
Lead Tech Python
Axione
Jan 2023 - Present
3 years 10 months
69340 Francheville, France
– Tech Leadership: Recruited and mentored engineers, enforced strict code standards (MyPy, Ruff, Black). – Observability: Built dashboards with Grafana, Prometheus, and AlertManager. – Architecture: Led Domain-Driven Design refactoring, ensuring backward compatibility. – Automation: Streamlined data update processes, reduced manual tasks, and improved CI/CD pipelines (GitLab CI, Docker, Ansible). – Search: Implemented intelligent search functionality. – Testing: Developed functional test pipelines with Postman.
Python Developer
Axione
Jan 2021 - Jan 2022
1 year 1 month
69340 Francheville, France
– API Modernization: Migrated from Python 2.7 to 3.8, refactored monolith to microservices. – Task Management: Used Celery and RabbitMQ for async task handling. – Geospatial Analysis: Developed geometric controls with GeoPandas. – Data Processing: Automated Excel report generation with Pandas and Openpyxl.
Co-founder & Back-end Developer
Pheal
Jan 2016 - Jan 2022
6 years 1 month
Paris, France
– API Development: Built REST APIs with Django, deployed on AWS Elastic Beanstalk via Docker. – CI/CD: Implemented GitLab CI/CD and integrated Snyk for security analysis. – IoT Integration: Connected Withings, NuvoAir, and Pneumotel devices. – Healthcare Compliance: Developed security features for E-Santé Convergence certification. – Reporting: Generated patient health reports using Matplotlib and FPDF2.
Python Developer
Kosc Telecom
Jan 2019 - Jan 2021
2 years 1 month
Paris, France
– API Development: Built REST APIs with Django and FastAPI. – Tech Stack Upgrades: Migrated Django 1.11 → 2.2 and DRF 3.7 → 3.12. – Microservices: Maintained Kafka-based inter-service communication. – Testing: Refactored and expanded unit/integration tests.
iOS & Django Developer
Leqto
Jan 2018 - Jan 2019
1 year 1 month
Paris, France
– Full-Stack Development: Designed and developed iOS app (Swift) and Django API. – Database & API Design: Architected database schema and REST API. – Documentation: Wrote comprehensive API documentation. – Deployment: Published iOS app on App Store; deployed Django service with Apache on Ubuntu.
Mobile Developer
Kairos (Mobile Marketing)
Jan 2016 - Jan 2017
1 year 1 month
Paris, France
– Cross-Platform Development: Maintained iOS (Objective-C) and Android (Java) library. – Testing: Wrote unit and functional tests. – Beacon Tech: Implemented iBeacon functionality. – Deployment: Published library on CocoaPods and Maven.
iOS Developer
PayOn
Jan 2016 - Jan 2017
1 year 1 month
Paris, France
– App Development: Created and deployed two iOS apps (Swift) via TestFlight. – Design: Designed UI/UX for both applications.
iOS Developer
Flatsy
Sep 2015 - Dec 2015
4 months
Paris, France
– App Development: Built two iOS apps (Objective-C). – SDK Integration: Used Google Maps SDK and Facebook SDK.
Education
University of Kent
MSc, Networks and Security