Freelancer profile translated to English.
Back to original languageAbout Mohamed
Tech Lead Backend Java/Kotlin | Microservices Architecture | Performance & Scalability
Do you have a complex backend that's becoming difficult to evolve, maintain, or scale?
I help teams structure, stabilize, and accelerate their backend systems in demanding contexts (insurance, banking, mutual insurance).
What I help you solve:
- Backend that's difficult to maintain or evolve
- Performance or scalability issues
- Technical debt slowing down teams
- Need to structure a robust microservices architecture
- Implementation of best practices (quality, CI/CD, security)
How I intervene:
- Design of robust architectures (hexagonal, clean architecture, microservices)
- High-performance backend development (Spring Boot, Java/Kotlin, WebFlux, BFF)
- Implementation of CI/CD pipelines and improvement of code quality
- API security (JWT, encryption, GDPR compliance)
- Team support (mentoring, structuring, skill development)
Concrete results:
- Acceleration of development cycles
- Reduction of technical debt
- Better system stability and scalability
- More autonomous and efficient teams
- Recent integration of generative AI (RAG, automation, dev tooling) to accelerate delivery and reduce costs
Available from May 2026 — remote or Paris / IDF.
English
Fluent
French
Native or bilingual
Can work on-site
Paris (up to 50km), Lyon (up to 50km), Nice (up to 50km), Marseille (up to 50km), Bordeaux (up to 50km)
Experience
- AMAP Malakoff HumanisTech Lead | Backend | JAVA | Spring bootBANKING AND INSURANCEJuly 2023 - Today (3 years and 1 month)Paris, FranceTechnical leadership of a cross-functional squad (Android, iOS, Backend) of 5 developers in a SAFe/Scrum environment, within a regulated insurance/mutual insurance context.Architecture & Technology
- Definition and implementation of architecture standards: Clean Architecture, BFF, REST, WebFlux, Java, Spring Boot
- Migration to Spring Boot 4 on a multi-microservices scope deployed on Tanzu Kubernetes (TKGs)
- RabbitMQ event-driven architecture for inter-service mobile and email notifications
- BFF developed with MongoDB and MariaDB; OIDC integration (PIN + biometrics) for mobile session security
- Production monitoring via Dynatrace: dashboards, trace analysis, incident resolution
Quality & DevOps- Jenkins CI/CD pipelines: build, automated tests, Sonar static analysis, multi-environment deployments
- Craftsmanship culture: TDD/BDD, code reviews, targeted refactoring, GDPR compliance (JWT, AES)
Leadership- Conducting technical recruitment interviews and onboarding new developers
- Facilitating design workshops with product, design, and business teams
AI & Innovation- Integration of generative AI (Claude, ChatGPT) into development workflows via prompt engineering
- Contribution to RAG (Retrieval-Augmented Generation) projects for internal AI assistants
- AXA FRANCESenior software engineerBANKING AND INSURANCEAugust 2021 - July 2023 (1 year and 11 months)NanterreI joined the Mobile team composed of several Android/iOS/Backend developers.My mission consists of:• Implementing new features in the application while respecting the existing architecture (Clean Architecture + MVVM)• Reducing technical debt in the code• Code review• Participating in Scrum rituals (Daily, sprint planning, grooming, retrospective...)• Writing unit tests (TDD) and integration tests (BDD) with Gherkin language• Participating in the estimation of new stories• Ensuring adherence to best practices in software development (SOLID, Clean Architecture, MVVM, Design Patterns…)• Analyzing and fixing bugs in testing and production environments• Working on a BFF backend with Spring Boot on an Azure application
- Malakoff HumanisSenior software engineerBANKING AND INSURANCEMarch 2020 - August 2021 (1 year and 5 months)Paris, France• Implementing new features in the application enabling• the mobile application to provide the services of the MH Information System.• Maintaining existing code and evolving it while respecting SOLID best practices.• Reducing technical debt in the code• Maintaining the application's CI/CD• Analyzing production anomalies• Participating in Scrum rituals (Daily, sprint planning, refinement...)• Consulting on mobile best practices• Participating in the development of new features for the back office• Occasional work on the Mobile BFF (Push notification, maintenance) - Spring Boot
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Education
- Certificate "Cloud DevOps Engineer"Udacity2021o Découvrir AWS et ces principaux composants o Créer un site web statique sur AWS hébergé sur S3 et servi via cloudFront o Publier une infrastructure from scratch via AWS cloud formation (VPC et EC2) o Créer un pipeline CI/CD entière o Travailler avec des microservices o Monter une infrastructure sur un cluster Kubernetes (EKS) dans AWS via cloud formation. Technologies utilisées : Aws, CloudFormation, CircleCi, Docker, Ansible, Kubernetes, Python, Shell, Eks, Prometheus, AWS CLI
- Engineering DegreeInstitut national des Sciences appliquées de Lyon2014
Certifications
- LFS261: DevOps and SRE Fundamentals - Implementing Continuous DeliveryThe Linux Foundation2023
- AWS Certified Cloud PractitionerAmazon Web Services (AWS)2024