Freelancer profile translated to English.
Back to original languageAbout Abdelali
Senior Java / Spring Boot Backend Developerwith over **10 years of experience**, specializing in microservices architectures, REST APIs, and distributed systems.
I have designed and developed robust and scalable backends for industrial, energy, and banking clients such as **Thales**, **EDF**, **TotalEnergies**, **Crédit Agricole**, and **Banque Delubac & Cie**.
I master the construction of Java 11/17 services based on Spring Boot and Spring Cloud, the exposure of clean and performant APIs (REST / OpenAPI), and the implementation of event-driven architectures around Kafka or MQ. I regularly work on cloud environments (Kubernetes, Docker) with industrialized CI/CD pipelines.
Main Stack:
- Java 11/17, Spring Boot, Spring Cloud, Spring Security
- Microservices, REST API, OpenAPI/Swagger
- Kafka, Event-driven architecture.
- Docker, Kubernetes, GitLab CI, Jenkins, SonarQube
- Databases: PostgreSQL, Oracle, Redis, JPA/Hibernate
- Testing: JUnit, Mockito, Testcontainers
- Observability: ELK, Prometheus, Grafana
Project Types:
- Refactoring legacy applications to microservices
- Creation of new cloud-ready backends
- IT System migration, cloud integration, distributed architectures
- Performance optimization (scalability, resilience, latency)
- Implementation of CI/CD, monitoring, security, and auditability
I work on demanding technical projects across all sectors (tech, SaaS, industry, energy, banking/finance, mobility, environment). I bring reliability, technical excellence, and quality of delivery.
Available for long-term missions or targeted interventions.
English
Fluent
French
Native or bilingual
Can work on-site
Paris (up to 50km), Lille (up to 50km), Lyon (up to 50km), Marseille (up to 50km), Bordeaux (up to 50km)
Experience
- Doors3Technical Expert Java – Architecture & Internalization (Banking & Crypto)BANKING AND INSURANCEMarch 2025 - Today (1 year and 3 months)Paris, FranceStrategic scoping and technical support missionfor a critical internalization project in the banking sector (crypto-assets / core banking / accounting flows) within a regulated environment (bank).MISSION OBJECTIVES
- Conduct acomprehensive auditof the architecture, functional workflows, and critical business flows.
- Define a6-12 month internalization strategyensuring tech / product / business coherence.
- Advise the tech management (CTO / Head of Eng) in **strategic alignment with the product roadmap**.
- Secure the technical and organizational foundations toaccelerate internal ramp-up(core banking, order execution, etc.).
INTERVENTIONS & KEY ACTIONS- Performed an in-depthtechnical & functional auditof the existing system, critical dependencies, and blocking risks (e.g., outsourcing order execution).
- Ledstrategic clarification workshopswith the CTO, PMs, Tech Lead, and internal decision-makers (up to the steering committee).
- Proposed and defended a **progressive internalization strategy**, taking into account regulatory, budgetary, and staffing priorities.
- Developed a structured internaltransition roadmapwith phasing and GO criteria.
- Acted as a technicalsparring partnerfor the CTO on build vs. buy vs. legacy rewriting trade-offs.
IMPACT & RESULTS- Fosteredcross-functional awarenessof critical dependencies at the core of the banking product.
- Provided astructured, actionable, and realistic visionin an uncertain context (lack of GO, regulatory constraints, strong technical dependencies).
- Freelance Enterprise AI / RAG Integration ProjectJava Technical ExpertSOFTWARE PUBLISHINGJanuary 2024 - Today (2 years and 5 months)Paris, FranceDesign and implementation of an "enterprise-grade" ingestion and compliance component to feed internal RAG/LLM platforms with Microsoft 365 (SharePoint) content that is **versioned**, **cryptographically verified**, **immutable**, and **traceable**.Implementation of a foundation ensuring integrity, auditability, and real-time availability of data for semantic indexing and search.Achievements:
- Real-time ingestion engine (Graph Webhooks + Delta Query) reducing latency (<3s) and API costs (-40 to -70% vs naive polling).
- Versioned and immutable storage (MinIO + Object Lock, SHA-256 validation, RSA signatures) compliant withSOX**, **ISO**, **GDPRstandards.
- Governance modules: audit trail, retention management, orphan document remediation.
- Full observability: structured logs, metrics, distributed tracing.
- Readable business paths, improving RAG accuracy and regulatory compliance.
Technical Environment:Java / Spring Boot, Microsoft Graph (webhooks, delta), OAuth2, Resilience4j, Jackson, Redis / CacheProvider, MinIO (S3, Object Lock), Kafka, Micrometer / OpenTelemetry, SHA-256, JSON audit.Practices:DRY, clean code, security & compliance, "production-ready" performance and reliability. - Crédit Agricole Conseil & Développement DigitalSenior Java DeveloperBANKING AND INSURANCEJanuary 2022 - Today (4 years and 5 months)Paris, FranceDevelopment of a platform for over 750 advisors at **Sofinco**, a subsidiary of **Crédit Agricole Consumer Finance**. Its purpose is to centralize actions and information to help these advisors make faster and more informed decisions when processing credit applications.Achievements:
- Creation of microservices with Spring Boot, enabling a flexible, scalable, and resilient architecture.
- Configuration of Spring Security to secure API endpoints using custom security filters integrating JWTs.
- Implementation of unit and integration tests with JUnit 5 and Mockito, covering over 4200 tests to ensure code stability and reliability before each production deployment.
- Securing sensitive secrets with HashiCorp Vault, protecting API keys, passwords, and other sensitive data, thus ensuring compliance with best security practices.
- Implementation of Flyway for reliable and versioned database migration management, ensuring schema consistency across different environments.
- Database performance optimization: Rewriting slow SQL queries and adding indexes on PostgreSQL to reduce response times and improve application scalability.
- API documentation via Swagger/OpenAPI, facilitating integration with frontend teams and external partners, and ensuring a good understanding of exposed services.
- Agile collaboration with the development team and the Product Owner to adjust priorities and deliver features meeting business needs within deadlines.
- Code review and adherence to best practices to ensure maintainable, clean, and scalable code, reducing long-term technical debt.
Technical Stack: Java 11, Spring boot, JWT, Spring Data, JAX-RS, OpenAPI, Swagger, IntelliJ, Apache CXF, Agile Scrum, Hashicorp Vault
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Education
- Master 2 Information Systems ExpertIPSSI2016
- Java EE Design and Development EngineerSchool of Engineering in Applied Sciences2014
Certifications
- Java EE Designer and DeveloperSpecialized Institute of Applied Technologies2011
- Cisco Certified Network AssociateSchool of Engineering in Applied Sciences2014