Alexandre Petitjean
Expert Django & DevOps since 2019
About
Independent backend developer with 5+ years of experience
Specialized in Django & DevOps for 5+ years. I help companies build and evolve their critical applications.
Legacy applications (10+ years), from-scratch development, complex migrations. I've worked on projects that migrated 70% of the business and deployed across 20+ industrial sites.
"Delivering robust, maintainable code, integrated into your processes." Autonomously or with your teams. One goal: creating lasting value.
Quality code
Clean, tested, documented
Fast delivery
Iterative and agile
Flexibility
Solo or in a team
Product vision
Understanding your challenges
Critical applications
Managing 10+ year legacy applications
Expertise in maintaining and evolving critical business applications, with particular attention to stability and backward compatibility.
Measurable business impact
70% of business migrated
Fullstack development of solutions with direct business impact, featuring concrete success and adoption metrics.
Large-scale deployments
20+ industrial sites
Design and deployment of scalable architectures, with complete automation of multi-site deployment processes.
What I offer
Technical solutions tailored to your business challenges with Django and DevOps expertise
Django & DevOps Development
Robust web applications, high-performance REST APIs, and complex integrations. Infrastructure automation, CI/CD pipelines, and cloud optimization. Complete expertise for your backend projects.
Technical consulting
Strategic advice to align technology with business objectives
CTO as a Service
Technical and strategic support to structure your teams
Automation
Business process and workflow automation with n8n
My approach
I can work alone or in collaboration with your existing teams. My goal is always the same: deliver robust, understandable code, well integrated into your business and technical processes.
Short or long missions
24h response time to discuss your project
Tech Stack
Backend & API
Django Django REST Framework 
Python 
PostgreSQL 
MySQL 
Redis 
RabbitMQ Cloud & Monitoring
AWS 
cPanel 
Prometheus 
Grafana Automation
n8n DevOps & Infrastructure
Docker 
Kubernetes 
GitLab CI/CD 
GitHub Actions Mobile & Frontend
Flutter 
React 
Next.js Projects
Featured Projects
Telecom Operator CRM
Maintenance and evolution of a legacy CRM with high business stakes. Feature development, critical bug fixes.
✓ Major technical debt reduction, development process improvements
AI Chat for Telecom Operator
Creation of an AI chat (ChatGPT-style) for customer service agents of a telecom operator.
✓ 30% reduction in agent response time
AutoCV
Creation of a platform to manage and generate resumes and skill portfolios with a modern interface and automated workflows.
✓ Ongoing side project focused on resume and skill portfolio generation
Mobile App for Doctors
Migration from FlutterFlow to Flutter with new features added to a mobile app for managing doctor locum bookings.
✓ Business continuity — FlutterFlow had become too limited for the app's needs.
react-allauth
React components and hooks for the django-allauth headless API. Published on npm.
Other Projects
Wealth Management CRM
Full-stack development from design to production with monitoring and scaling.
✓ 70% of business migrated
Production Management Interface
Creation of a web interface for tracking production at a bottling plant.
✓ Real-time monitoring of production lines, unified operator interface
Multi-site Logistics
Redesign of a legacy inventory management tool and API development for Flutter mobile applications.
✓ 20+ industrial sites
Talatala.cd
Barometer of parliamentary activity and government action in the DRC.
✓ Website improvements + AWS cost reduction
Network Operation Scheduler
Maintenance and feature development for an internal tool used by a telecommunications operator.
Blog
Discover my articles about Django, DevOps, Python and web development best practices
Experience feedback & best practices
I share articles on web development, DevOps, and the tools I use daily. New content is published regularly.
View blogLet's start your project
Ready to turn your ideas into robust technical solutions? Let's discuss your project.
Book a 30-min slot
Let's discuss your needs directly and see how I can help you.
Location
Lyon · Remote
Indicative daily rate
~500€
Availability
Immediate
