Freelancer profile translated to English.
Back to original languageAbout Abdeldjalil
Senior Java/Spring Boot and DevOps AWS Engineer with over 10 years of experience in demanding environments (TotalEnergies, Société Générale, AccorHotels). Advanced expertise in microservices architecture, Kafka event streaming (on-prem & Confluent Cloud), and AWS infrastructure (AWS Services, Terraform IaC). Full command of the DevOps chain: GitHub Actions CI/CD, Docker/Kubernetes containerization, observability (Dynatrace, CloudWatch). Proven ability to lead complex cloud migrations and ensure the resilience and scalability of critical production systems.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km), Lille (up to 10km)
Experience
- Total EnergiesDevOps Engineer Java / Spring / AWS/ KafkaENERGY AND UTILITIESSeptember 2023 - March 2026 (2 years and 6 months)Issy-les-Moulineaux, France
- Development of aJava Spring Boot backend platformexposing standardized REST APIs (OpenAPI, input validation, centralized error management).
- Definition and implementation of aKafka event-driven architecturefor orchestrating **critical business flows**, with development of resilient producers/consumers (retries, retry topics, DLQ).
- Implementation of thecustomer search and aggregation layervia jOOQ (complex joins, normalization, performant aggregates) and implementation of atomic transactions ensuring distributed consistency.
- Active contribution to the **migration from on-premise Kafka to Confluent Cloud**: securing exchanges **(SASL/SSL)**, secret management, and performance optimization.
- Setup and continuous improvement ofGitHub Actions CI/CD(build, tests, packaging, multi-environment deployments).
- Deployment ofproduction observability(logs, metrics, alerting, Kafka monitoring via Dynatrace) and active participation in run and support, with a strong focus on reliability and performance.
- Technical leadership of theAWS cloud migration**: definition of the target architecture, technical choices, and facilitation of **Cloud / DevOps / Securityworkshops.
- Application adaptation to the cloud (configuration externalization, secure secret management,S3 / SFTParchiving and distribution integration, observability enhancement).
- Implementation of **Infrastructure as Code (Terraform)**.
- Design of thebatch engineand development of ashared S3 serviceto improve maintainability.
- Integration ofGRDF / ENEDIS SOAP web servicesand design of arobot frameworkintegrating advanced retry, routing, validation, and automatic resumption mechanisms.
- Société GénéraleSenior Backend Developer Java/AWSBANKING AND INSURANCESeptember 2000 - August 2023 (22 years and 11 months)Paris, FranceMigration of a critical credit risk simulation platform to AWS, integrated into the Jarvis production calculator, with high requirements for fidelity to real conditions, performance, scalability, and cost control.*AWS architecture designby actively participating in cloud architecture decisions, ensuring scalability, high availability, and performance.
- **Infrastructure as Code implementation with AWS CDK**, enabling automated provisioning, environment standardization, and secure deployments.
- Setup ofJenkins CI/CD pipelinesensuringautomated, frequent, and reliable deploymentsto dev, staging, and production environments.
- Deployment of **monitoring and alerting tools**, facilitating **proactive incident detection, reduction of downtime**, and improvement of application supervision.
*Development and evolution of functional componentsto improve code quality, optimize simulation performance, and ensure **controlled scalability**.- Application of **cloud and application best practices**, aimed at enhancing overall platform **performance, resilience**, and **scalability**.
- Writing and maintenance ofdeployment and operationsdocumentation, contributing to knowledge capitalization and team autonomy.
- AccorHotelsSenior backend Developer Java/AWSJune 2019 - August 2020 (1 year and 2 months)
- Design and development ofJava / Spring Boot backend servicesexposing aunified REST facadefor customer data access.
- Implementation of aNoSQL data-driven architecturebased on **Cassandra (DSE)**, with query-oriented modeling, optimization of single-read access, search and write, and monitoring & performance tuning.
- Development ofcustomer data synchronization servicesbetween repositories.
- Design and implementation of anapplication cachefor the customer repository to improve response times and resilience.
- Participation inAngular front-enddevelopment in support of customer journeys.
- Integration ofcross-functional customer business rulesin a centralized and reusable logic.
- Implementation of craftsmanship best practices withTDD / BDD, unit and integration tests (JUnit, Mockito, Cucumber)and continuous integration to ensure code quality, reliability, and maintainability.
- **Analysis, diagnosis, and correction of production incidents**, with continuous improvement of robustness.
- Implementation of **Infrastructure as Code (Terraform)**:
- Preparation and security ofdeployment plansfor deliveries in staging and pre-production environments (Jenkins, CA Release Automation).
- Active participation and facilitation ofSCRUM ceremonies(Daily, Planning, Grooming, Review, Retrospective).
- Development of a cache forrepository data(Java 8, Spring Boot, RESTful WS).
- Optimization (performance, maintenance, tracking, security, etc.) of access to its data for single reads, search, and writes.
- Exposure of a single, simplified layer for internal AND external partners.
- Development and deployment of a reservation management application from scratch (Java 8, SpringBoot, Spring Core, Spring Security, REST).
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Education
- Master's Degree in Computer ScienceUBO2010Master 2 Informatique