Freelancer profile translated to English.
Back to original languageAbout Houssem
Passionate about designing cloud-native architectures that combine raw performance and resilience, I have been supporting organizations with critical needs (Energy, Insurance, Taxation) in their digital transformation for over 8 years. My approach? Reducing technical complexity to maximize business impact.
💡 What I bring to an organization:
* Performance & Modernization: Quarkus and Java 21+ expert, I advocate for the transition to lightweight and responsive environments through native compilation and gRPC.
* Scalable Architecture: Adherent to Domain-Driven Design (DDD) and Event-Driven architectures to build highly available and maintainable systems.
* Operational Excellence: Technical lead convinced by Clean Code practices, TDD, and DevOps culture (GitOps, Total Observability).
📈 Concrete Results (Key Wins):
* Abeille Assurances: 70% reduction in claims processing time thanks to a new asynchronous architecture.
* Sercel: 40% reduction in memory footprint through optimization of the Datahub under Quarkus.
* Cloud Migration: Orchestration of complex transitions between legacy systems (IBM MQ) and AWS managed services.
🛠 Preferred technological stack in 2026:
* Cloud: AWS (Certified Developer), EKS, Lambda, Bedrock (GenAI).
* Backend: Quarkus, Spring Boot 3, Kafka, gRPC.
* DevOps/Infra: Terraform, ArgoCD, Kubernetes.
Let's discuss your cloud architecture challenges or migration issues.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km)
Experience
- EDFLead Software Engineer (Cloud-Native)ENERGY AND UTILITIESSeptember 2024 - Today (1 year and 9 months)Montrouge, France
Project: PLED Platform & RTM Middleware (Critical Construction Infrastructure)
- Design From Scratch:Architecture and design of the RTM (Routing, Transformation, Mapping) middleware for integrating massive flows to external EDMS.
- Cloud-Native Strategy (AWS):Design of the core cross-functional components (C90) including a highly available storage service on AWS S3 and centralized authorization management (HCA).
- Flow Optimization:Implementation of streaming for large deliverables, optimizing transfer times and resource consumption on the Kubernetes cluster.
- Leadership & Governance:Definition of the technical roadmap under SAFe, coaching 5 developers on reactive programming, and establishment of quality standards (TDD, Code Review). Technical decision-making with RFC and ADR Documentation.
- Abeille AssurancesLead Tech & Application ArchitectBANKING AND INSURANCESeptember 2022 - September 2024 (2 years)Courbevoie, France
Project: Critical ESB (Enterprise Service Bus) – Core of the Digital IS.
- Governance & Design:Writing Technical Architecture Documents (DAT) and defining integration patterns (EIP) via Apache Camel.
- Business Modernization:Architecture and development of the automatic claims declaration engine, reducing processing time by 70% through an asynchronous flow orchestrated by ActiveMQ.
- Cloud Hybridization:Optimization of the interface between historical brokers (IBM MQ) and AWS managed services, ensuring a smooth transition to the Cloud.
- Quality:Generalization of tests (Mockito/Sonar) reaching 85% coverage and securing the release lifecycle (CI/CD Jenkins/Docker).
- SercelSenior Software Engineer (Quarkus)ENERGY AND UTILITIESJuly 2021 - August 2022 (1 year and 1 month)Nantes, France
- Quarkus Performance:Development of the "Kairos Datahub" middleware under Quarkus. 40% reduction in memory footprint compared to Spring Boot.
- High-Throughput Data:Implementation of gRPC and Protobuf interfaces for real-time streaming processing of marine seismic data via Apache Kafka.
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Education
- National Engineering Diploma, Telecommunications EngineeringNational Engineering Diploma, Telecommunications Engineering2018Diplôme national d'ingénieur, génie télécommunications
- Preparatory Cycle, Mathematics and PhysicsPreparatory Cycle, Mathematics and Physics2015Cycle préparatoire, Mathématiques et physiques
Certifications
- AWS Certified Developer – AssociateAmazon Web Services Training and Certification
- AWS Certified Cloud PractitionerAmazon Web Services Training and Certification2024