Freelancer profile translated to English.
Back to original languageAbout Oussama
Technical Lead of a team of 10+ multilingual dev/QA & Java Spring backend developer with 7 years of experience, I have participated in numerous projects during all phases in the fintech field. I am ready to support you full-time on missions of min. 6 months in the long term.
English
Fluent
French
Native or bilingual
Can work on-site
Paris (up to 50km)
Experience
- LexisNexis Risk SolutionsPrincipal Engineer - Data EngineerBANKING AND INSURANCENovember 2023 - Today (2 years and 7 months)Paris, FrancePiloting and implementation of a Data Lake to store and process large amounts of financial data (SWIFT MT/MX ISO20022, CIF). Setting up robust ETL pipelines to transform this data into actionable information for analysis and reporting.
- Team leadership of 10 developers
- Design and development of end-to-end Big Data solutions
- Expertise in Apache Flink, Iceberg, S3
- Development of ETL pipelines in batch and streaming mode
- Migration to a cloud-native infrastructure (Kubernetes)
- Optimization of costs, performance and security of applications
- Training and support of English-speaking technical and business teams.
- LexisNexis Risk SolutionsOn-Premises/Cloud Native Lead DeveloperBANKING AND INSURANCEJanuary 2022 - November 2023 (1 year and 10 months)Paris, FranceContribution to the modernization of the Fircosoft Continuity platform to its v6 version. Piloting the development of several microservices in Java. Design of a complex microservices architecture that communicates via REST, IBM MQ and Kafka. This modernization has made it possible to deploy the platform both On-Premise and Cloud Native (in Kubernetes).
- Development team leadership (8 people)
- Design and development of Helm charts for cloud-native deployments
- Advanced containerization (Docker distroless) and application security
- Implementation of CI/CD pipelines on Azure AKS and AWS EKS
- Performance optimization and test automation (BDD)
- Definition of NFR (Non-functional requirement) and continuous improvement of security
- Contribution to technical documentation
- Facilitation of customer support sessions
- LexisNexis Risk SolutionsSenior Tech Lead Java-Spring - Team DevopsPRESS AND MEDIAJanuary 2021 - August 2022 (1 year and 7 months)Paris, FranceDesign and development of a Java Spring middleware to orchestrate and map data exchanges between the screening microservices of Fircosoft Continuity. This middleware, which relies on IBM MQ and Kafka real-time messaging technologies, has reduced integration costs and promoted reuse in other projects.
- Development team leadership (5 people)
- Design and implementation of the middleware architecture on Java and Spring Integration
- Creation of a DSL (Domain specific Language) to map data and configure business rules
- Definition of NFRs and development of test frameworks
- Implementation of CI/CD pipelines (Jenkins, sonar, Kubernetes)
- Mastery of financial standards (Swift MT/MX ISO20022)
- Facilitation of demonstrations and customer support
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Education
- Master Systèmes et Applications Répartis (SAR)Université Pierre et Marie Curie - Paris 62015
- Ingénieur en informatique, Systèmes d'Informations et de ConnaissancesA.M.A.T en Tunisie2011
Certifications
- Green Belt JavaSecurity Journey2021
- Certified SAFe 4 Practitionerscaledagile.com2019