Freelancer profile translated to English.
Back to original languageAbout Cedric
You in a few words
Senior freelance consultant with over 12 years of experience, I work on both software architecture design and its technical implementation.
Specializing in Golang and PHP (Symfony, Laravel), I design and develop robust, scalable, and efficient systems in a cloud environment (AWS, GCP).
I support companies in technical scoping, defining architectures (API-first, microservices, cloud-native), and in concrete implementation, while remaining fully operational on the code when necessary.
English
Native or bilingual
French
Native or bilingual
Remote only
Primarily works remotely
Experience
- BELIEVESenior PHP Symfony DeveloperMay 2025 - Today (1 year and 1 month)Paris, France🔹 Architecture & Scalability
- Contribution to the evolution of a distributed microservices architecture (K8s), exposed via API Gateway (KrakenD / Kong), ensuring high availability and horizontal scalability.
- Design and optimization of massive event flows (Kafka, RabbitMQ, Temporal) to handle significant load peaks.
- Implementation of distributed caching and storage strategies (Redis, MongoDB, PostgreSQL) adapted to intensive media usage.
- Progressive modernization of legacy components towards cloud-native services.
🔹 Performance & Optimization- Significant reduction in latency and timeouts through parallelization, optimization of inter-service calls, and advanced tuning of REST/GraphQL APIs.
- Optimization of edge layers (NGINX, CDN, API Gateway) to improve overall performance.
- Advanced SQL tuning (indexing, complex queries, NoSQL optimization).
- Refactoring and modernization of legacy components
🔹 Resilience & Observability- Implementation of fault tolerance strategies (circuit breakers, retries, timeouts, idempotency).
- Setup of complete observability (Datadog, ELK, APM, SLO/SLA metrics).
- Continuous improvement of reliability and reduction of MTTR through advanced monitoring and intelligent alerting.
🔹 DevOps & Cloud- Deployment and operation of cloud architectures (AWS, GCP) and serverless, with industrialized CI/CD and Infrastructure as Code (Helm, ArgoCD).
- Secure management of secrets and access (Vault, OAuth2, JWT).
- Contribution to DevOps standardization and stability of production environments.
🔹 Collaboration & Technical Governance- Active participation in Agile rituals (Scrum).
- Writing of ADRs (Architecture Decision Records) and architecture documentation.
- Contribution to code reviews and dissemination of best practices (Clean Code, SOLID).
- MYMSenior Backend developer (Golang / PHP)December 2021 - November 2024 (2 years and 11 months)Paris, France🔹 Architecture & Transformation
- Design and implementation of a microservices architecture based on Clean Architecture, DDD, and Hexagonal, ensuring long-term maintainability and scalability.
- Definition of migration paths and construction of application transformation roadmaps.
- Progressive migration from PHP monolith to Golang microservices (Strangler pattern), while ensuring service continuity.
- Application rationalization and reduction of technical debt.
- Simplification of the IS with a reduction in maintenance costs (-20%).
🔹 Performance & Scalability- Optimization of backend performance (PHP & Go), ~40% reduction in response times through refactoring caching mechanisms and optimizing data access.
- Implementation of advanced scaling strategies (Kubernetes autoscaling, cloud load balancing)
- Implementation of real-time communications and distributed systems (gRPC, WebSockets, Mercure)
- Optimization of relational and NoSQL databases.
🔹 Security & Governance- Implementation of secure architectures (OAuth2, JWT, OpenID Connect, IAM, Cognito, SAML).
- API security (rate limiting, WAF, CORS).
- Implementation of zero-trust principles and formalization of technical standards.
🔹 DevOps & Cloud- Cloud-native deployment on AWS (EKS, EC2, Lambda, S3).
- Infrastructure as Code (Terraform) for reproducible environments.
- Automated CI/CD and quality gates (SonarQube).
- Advanced observability (Prometheus, Grafana, OpenTelemetry, ELK, Sentry).
🔹 Migration & Modernization- Progressive migration from PHP monolith to Golang microservices, while ensuring the stability of the existing system.
- Code refactoring and reduction of technical debt through audits and quality gates.
- Development of the booking workflow
🔹 Management & Continuous Improvement- Construction of management indicators and KPI monitoring.
- Analysis of API & event metrics.
- DROPCLOUDSoftware Architect & Lead Developer (Symfony | Laravel | Golang)March 2014 - November 2021 (7 years and 8 months)Paris, France🔹 Transformation & IS Urbanization
- Progressive migration of monolithic applications to microservices and serverless architectures on AWS.
- Definition of urbanization principles (decoupling, modularity, API-first, DDD).
- Modeling of functional domains using Archimate and structuring of business capabilities.
- Contribution to the development of the multi-year IS master plan.
- Definition of target architectures by domain and construction of migration paths.
- Identification of application redundancies and development of convergence scenarios (merger, replacement, decommissioning).
🔹 Cloud Architecture & Scalability- Industrialization of multi-cloud (AWS, OVH) Kubernetes and Terraform deployments.
- Optimization of resilience and scaling through messaging (Kafka, RabbitMQ) and distributed caching (Redis).
- Implementation of DevSecOps governance and standardization of architectural patterns.
- Design of highly available and performance-oriented SaaS architectures.
🔹 Development & Automation- Design and development of backend services and CLI tools in Go to automate provisioning and deployments.
- Refactoring of critical services, improving performance and scalability by ~60%.
- Advanced optimization of processes (parallelism, batch processing, network refactoring).
🔹 Leadership & Delivery- Coaching and skill development of a team of developers (mentoring, code reviews)
- Structuring of Agile rituals and continuous improvement of delivery processes.
- Close collaboration with product teams to co-build the roadmap.
- Compliance with security and quality standards (ISO 27001, OWASP, GDPR).
- Integration of PSPs via secure APIs with webhook and idempotency management.
- Design of robust transactional workflows (authorization, capture, refund).
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Education
- AWS CERTIFIED SOLUTIONS ARCHITECT – ASSOCIATEAMAZON WEB SERVICES2025AWS CERTIFIED SOLUTIONS ARCHITECT – ASSOCIATE
- Master2UNIVERSITÉ DE ROUEN2014Master2