Freelancer profile translated to English.
Back to original languageAbout Bastien
Senior Backend Developer
PHP / SYMFONY
Symfony · PHP · CQRS · DDD
🎓 6+ years of experience
🏅 10+ projects completed
⚡ Response within 1h
🙋🏻♂️ Trusted by: Selescope, Degetel (Technology & Strategy), Le Mailoscope, La Banque Postale
🤝 About
Backend Developer also comfortable on the Front-End, I work on the entire project lifecycle: technical scoping, architecture, development, performance optimization, and operational maintenance.
I favor clear, maintainable, and easily transferable code.
Accustomed to high-stakes contexts, I always work with a global product vision, integrating technical, business, and user constraints to propose relevant and sustainable solutions.
My approach is that of a technical partner: fluid communication, transparent decisions, and strong reactivity.
🛠 Areas of Intervention
Development 🚀
Design and development of applications, from the architecture phase to production deployment.
Maintenance & Optimization 🔧
Taking over existing projects, stabilizing production applications, improving performance, and reducing technical debt.
Team Augmentation🧠
Rapid integration into existing teams, with effective adaptation to the stack, tools, and processes in place.
💻 Technical Stack
Back-End ⚙️
→ PHP Symfony · API Platform
→ DDD, EDA, CQRS
Front-End ✨
→ JavaScript · TypeScript
→ React · Next.js
→ Tailwind CSS
Ecosystem 📦
→ MySQL · PostgreSQL · Supabase
→ PHPUnit · Vitest
→ AWS · Platform.sh · Upsun
→ Docker · Git
📩 A project, a need, a question?
💬 Contact me by private message
✅ Response within 1 hour
French
Native or bilingual
English
Native or bilingual
Spanish
Fluent
Can work on-site
Paris (up to 50km), Amiens (up to 50km), Lille (up to 50km)
Experience
- MailoscopePHP Developer - SymfonySOFTWARE PUBLISHINGSeptember 2024 - September 2025 (1 year)Paris, FranceDescription: SaaS newsletter aggregator focused on competitive intelligenceResponsibilities and Achievements:
- Architected the DDD core of the product: bounded contexts, ubiquitous language, context map, aggregates, value objects, and domain events.
- Designed a distributed multi-source email ingestion pipeline (IMAP, API) with asynchronous orchestration — ~90% success rate on critical jobs.
- Developed a semantic analysis and scoring engine improving classification relevance by +20% to +30%.
- Implemented an automated LLM-driven affiliate pipeline with configurable anonymization.
- Established a comprehensive testing strategy (unit, integration, e2e) ensuring production reliability.
**Stack**: Symfony 7.2 · PHP 8.3 · PostgreSQL · Twig · Tailwind CSS · Docker · PHPUnit · Upsun - SelescopePHP Developer - SymfonySOFTWARE PUBLISHINGOctober 2024 - June 2025 (8 months)Paris, FranceDescription:SaaS · Psychometric Evaluation & Recruitment AidResponsibilities and Achievements:
- Led the refactoring of a legacy core to Symfony 7.2 / PHP 8.3: split by sub-domains, technical debt reduction.
- Designed a candidate/offer matching engine based on dynamic weighted scoring, defined with product and HR teams.
- Developed an automatic job description generation pipeline via LLM.
- Optimized critical SQL queries and reduced cyclomatic complexity, improving maintainability and performance.
- LA BANQUE POSTALEPHP Developer - SymfonyBANKING AND INSURANCEJuly 2023 - June 2024 (11 months)Paris, France**Description**: Major client · High-performance editorial websiteResponsibilities and Achievements:
- Integrated a custom CMS with modular templates and personalized content types for editorial team autonomy.
- Designed and deployed an analytical tracking plan: event structuring, normalization, GDPR compliance.
- Implemented an advanced caching strategy with Fastly (selective purging, fine-grained invalidation, differentiated TTLs).
- Optimized application performance through Blackfire profiling in a strict SLA environment.
Recommendations
ZL
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
- Symfony 7 CertificationSensio Lab University2025SensioLabs valide la maîtrise complète du framework en environnement professionnel.