NELH ITWAVECRAFT

Projet : Insurance sector -> Architecture audit covering multiple domains / Finance, Workplace, Security, RAG, Sustainability Digital, and API Design/Migration. Responsibilities: Solutions Architect & Lead Expert 🔧 Composable Architecture & Modernization of Information Systems | 🔗 API Inventory & Migration Strategy • Initiated a full inventory of 114 existing APIs to analyze usage patterns and assess readiness for migration from Azure API Management (APIM) to the MuleSoft Integration Platform. • Collected essential technical metadata (protocols, methods, authentication mechanisms, documentation status, and security layers). • Applied progressive discovery techniques (log analysis, Swagger/WSDL parsing, reverse engineering, stakeholder interviews) to reconstruct undocumented APIs. • Managed API integration and interfacing with key enterprise platforms including Anaplan, SAP S/4HANA, Salesforce,MuleSoft, Talend, and Azure APIM .. , ensuring interoperability and alignment with enterprise architecture standards. • Objective : to build a reliable and structured API catalog serving as a foundation for the migration effort, while reinforcing governance, traceability, security, and long-term reusability. ________________________________________ 🔄 DevOps Modernization & Tooling Migration • Actively contributed to the migration of CI/CD pipelines from Azure DevOps to GitHub Actions to harmonize with cloud-native DevOps strategies. • Implemented an internal RAG-based assistant to enhance CI/CD pipelines by automatically generating technical documentation and assisting with log diagnostics, based on internal engineering knowledge bases. • Streamlined delivery workflows through automation (test integration, code quality gates, security scanning, policy enforcement). • Ensured continuous delivery across a multi-project and multi-team environment with a focus on efficiency and standardization. ________________________________________ 📊 Functional Scoping & Composable Design Support • Assisted business teams in functional requirement scoping, facilitating clear and actionable translation into technical architecture. • Advocated for Composable and Domain-Driven Microservices design, ensuring each component strictly respects its functional perimeter. • Contributed to the setup of a standardized ecosystem grounded in business capability decomposition, fostering reusability, scalability, and system coherence. • Initiated cartography (ArchiMate and Draw.io) activities following API and system inventories, reconstructing undocumented assets to reflect the current state and designing target architectures for modernization. ________________________________________ 🤝 Cross-Team Collaboration & Best Practices Enforcement • Worked closely with developers, lead engineers, functional analysts, integration and security architects. • Defined, documented, and enforced technical guidelines (naming conventions, versioning, observability, security policies). • Monitored adherence to best practices across delivery cycles to prevent technical debt, reduce rework, and ensure architectural integrity. ________________________________________ 🧠 Artificial Intelligence & Intelligent Assistants • Contributed to the implementation of Retrieval-Augmented Generation (RAG) in two key areas: • CI/CD Intelligent Assistant: Leveraged RAG to support DevOps teams in automated technical documentation generation and error log resolution using internal knowledge bases. • Adobe Firefly-based Internal Tool: Applied RAG to dynamically generate visual and descriptive marketing content from internal style guides and brand documentation. • GitHub Copilot Integration: Integrated Copilot into GitHub Actions workflows to assist developers with code suggestions and process automation. ________________________________________ 📌 Additional Deliverables & Strategic Initiatives • Workplace projects (Auditorium, LocalServer) → conducted a full audit, produced HLD and LLD for the AS-IS state, then designed the TO-BE architecture with actionable recommendations. • Sustainability Digital :carbon tax integration with (Dynatrace, Sopht, Flexera) → delivered HLD and LLD, and proposed an adapted solution for the selected portals to effectively support business needs. • Vertex project → migration plan from on-premise to Cloud remains under study with the concerned team.

Projet : Transformation Digital Composable Microservices / Java JEE /SAP Commerce hybris. Responsibilities: Senior Technical Architect & Technical Design Authority – Cross-functional Role 🧩 IT Transformation & Composable Architecture 🔧 Composable Architecture & Modernization of Information Systems • Preparatory phase for the decommissioning of SAP Commerce Hybris in favor of a Composable and Headless Architecture. • Decomposition of monolithic applications into microservices. • Design and implementation of a modern Composable & Headless Architecture. • Development of an intermediate orchestration layer between APIM and microservices, including:  – API Gateway, proxy, orchestration, coreModel, aggregation, and consolidation. • Design and management of Core API Modeling across providers and clusters (APAC, AMER, EMEA, CHINA), ensuring seamless integration and standardization. • Selection of a technical stack aligned with project needs and application constraints. • Optimization of multiple database queries to improve system performance. ________________________________________ 🔗 API Governance & Design Authority • Leadership of the API Design Authority, gathering architects from the group’s key information systems. • Support and guidance for project teams on API design, structuring, and documentation. • Design of RESTful APIs compliant with group standards based on OpenAPI Specification (OAS). • Oversight of API best practices: versioning, security, pagination, HTTP status codes, governance, etc. • Contribution to the evolution of API standards, in coordination with Tech, Security, DevOps, and Business teams. • Promotion of the API-First approach and implementation of interactive documentation using Swagger / OpenAPI. ________________________________________ 🛠 Technical Design, Collaboration & POCs • Drafting of detailed technical documents (DAT) and design specifications. • Delivery of an impact analysis of design decisions across the IT ecosystem. • Close collaboration with business stakeholders to ensure alignment between technical solutions and business needs. • Upholding of strong architectural vision while enabling smooth coordination with all stakeholders. • Implementation of robust technical processes to enhance existing practices. • Execution and management of POCs to validate technical feasibility and encourage innovation. ________________________________________ ⚙️ Technologies & Tools • Implementation of a Kafka-based event-driven pricing system, with infrastructure choices between CaaS Azure or AWS. • Configuration and monitoring with Grafana and Kibana. • Confirmed expertise in Spring Boot, Kafka, and CosmosDB(MongoDB). • Performed JVM profiling, Garbage Collection (GC) log analysis, and deadlock diagnostics in production. • Conducted advanced troubleshooting and performance audits, optimized Databases queries and indexes. • Oversaw global API governance using OpenAPI, OAuth2, TLS, and best practice enforcement. • Assisted in the implementation and integration with external platforms including Salesforce, Waitwhile, JRNI, and Tulip.. • Contributed to the integration and orchestration of product & price and stock reference systems, including Fluent for real-time inventory synchronization and product master data management...

Projet : Insurance administration/ SAP Commerce hybris Responsibilities: Architect Solutions Java JEE /SAP COMMERCE/ Transversal Rule (Application & infrastructure). • Performance optimization and technical debt reduction (refactoring) site based on SAP Commerce hybris 1905 • Reverse engineering. • Auditing features. • Writing technical documents DAT and detailed design specifications. • Supporting developers in implementing best development practices. • Providing technical guidelines to ensure code quality, maintainability, and performance, by conducting code reviews. • Implementing designs that are compatible with the functional need and that respect good technical practice. • Development and implementation a several services oData S4 HANA . • Development and implementation of Opswat anti-virus solution . • Implement a mechanism monitoring regarding : tracking the response times of odata API oData. • Set up some technicals basis for using search and filters with pagination. • Add a new strategies to use @ cache WS oData. • Creation of an OCC base with several webServices REST exposed to the Gateway API. • Optimization of the hybris medias share part. • Upgrade hybris version SAP Commerce hybris 1905 to 2005 and 2105. • Configuration Grafana & Kibana & OpenShift with hybris SAP Commerce performance management tool.

Projet : E-commerce / SAP Commerce hybris Responsibilities: Architect Solutions JAVA JEE & SAP Commerce hybris : Projet PUM • Reverse engineering. • Auditing features. • Writing technical documents DAT and detailed design specifications. • Providing technical guidelines to ensure code quality, maintainability, and performance, by conducting code reviews. • Decomposition of Monolith Applications Into Microservices. • Composable Architecture & Headless Architecture. • Creation of several REST web services exposed to the Gateway API. • Choice of a technical stack compatible with project applications. • Performance optimization and technical debt reduction (refactoring) of the v1 site based on hybris 5.4 • Migration from version 5.4 to 6.7.0.30 of hybris with mechanisms adapted for data recovery.. • Development and implementation of a new extension RabbitMq: sends Repository Events to several types of systems. • Upgrade hybris version 6.7.0.30 to Mysql 8. • Development and implementation a new layer for MongoDB in hybris . • Development of all exchange interface contracts between an Api Gateway application (RabbitMq publish & consumer) • Complete overhaul of all cronjobs (122 cronjobs) • Creation of an OCC base with several webServices REST exposed to the Gateway API. • Optimization of import pricing (43 million lines = 8min or (stock 7 million lines = 50 sec). • Set up SOLR 7.7.2 with all the configurations at the level of SOLR servers and at the level of impexes.and create a new resolvers. • Optimization of the hybris medias share part. • Hybris server startup optimization of 20 min -> 1 min 40sec • Configuration at tomcat level (catalina.properties, server.xml web.xml) • The implementation of the cluster configuration. • 100% development and architecture mission with a 360 ° vision on the mapping of projects at PUM.. • Configuration Dynatrace with hybris SAP Commerce performance management tool.

Projet : E-commerce / SAP Commerce hybris Responsibilities: Architect Solutions JAVA JEE & SAP Commerce hybris : RueDuCommerce • Development of a RabbitMq technical base in the form of a new extension: sends Repository Events to several types of systems. • Writing technical documents DAT and detailed design specifications. • Development of several repository synchronization flows between the hybris platform and the Mirakl marketplace. Establishment of a procedure for the migration from hybris 5.4 to hybris 6.4, by reusing the same sqlServer2014 data of hybris 5.4 by making an updatesystem on a sqlServer2016 server. • Implementation of a new hybris PCM-Supplier Platform • Integration : product / Categories/Classifications / Assignments /Attributes / values /Units. • Development and implementation of several REST webservices. OCC. • Design, analysis, technical recommendation for the implementation of new functionalities. • Development of user rights management on PCM. • Optimization SOLR • Implementation of an Elasticsearch POC • Optimization hotFolders. • Optimization of several flexibleSearch queries. • Code review. • Optimization of the hybris medias share part.

Projet : E-commerce. Responsibilities: Architect Solutions JAVA JEE & SAP Commerce hybris : projet Pum-plastiques • Disabling the "Staged" product catalog • Integration of Pavers SAGE X3 to hybris • Integration of X3 Features to hybris • Resolution of the Technical Debt. • Optimization SOLR

Projet : E-commerce coreModel / SAP Commerce hybris Responsibilities: Architect Solutions JAVA JEE & SAP Commerce hybris : projet Conforama • Contribution for the detailed technical design coreModel • Governance of cartography solution design . • Writing technical documents DAT and detailed design specifications. • Auditing features. • Reverse engineering. • Recommendation on the technical architecture (Env r7, pre-pro, Prod) • Supervision of performance tests. • Recommendation on the implementation Core Model • Coordination with the infrastructure manager. • Recommendation of the technical solutions between the different existing IS at Conforama. • Implementation of an abstraction layer for OCC extension (Omni Commerce Connect )

Projet : E-commerce / SAP Commerce hybris Responsibilities: Consultant Solutions JAVA JEE hybris :Infrastructure CHANEL • Deployment of the hybris platform for 7 projects: PIM -PCM -StoreFront- OCC : • I’m Contribute effectively in defining the architecture/design of solution and implementation. • I’m be able to independently handle all modular designs. • Projet parfums-beauté : hybris 5.4.0.1 • Projet Peps : hybris 5.4.0.0 • Projet Maison Michel : hybris 5.4.0.5 • Projet ERES : hybris 5.4.0.5 • Projet POC Singapour & Chine hybris 5.4.0.4 • Projet PIM Fashion : hybris 5.4.0.4 • Projet PIM Watches Jewelry : hybris 5.4.0.4 • Projet MyAccount : hybris 5.4.0.0 • Implementation of INT / UAT / OAT / PRD hybris environments. • Integration with an S4 HANA backend. • Creation of Jenkins jobs for hybris platforms • Implementation and setting up SONAR • Implementation and setting up SOLR en standalone. • Configuration of clusters, multi-tenants • Setting up the dataSource configuration to secure access to the databases (Encoding ). • Development and integration of a hybris SAML SSO extension for hybris Active Directory • Configuration IIS & ADFS • Configuration Dynatrace with hybris SAP Commerce performance management tool. Internal Applications : • Applications on the Java / Spring stack: IAM, PIM: level 3 support and technical recommendations. Guarantee the application of good practices • Study and analysis of version upgrades or evolution of the internal Java platform: eg: organize Tomcat, Java version upgrades, etc. carried out by the Technical Office • IIS expertise based on project needs (IIS configuration, implementation of complex redirect rules, etc.)

DARTY - (09/2013 until 12/2013) Project : E-commerce project : hybris PCM The specialist in the distribution of consumer electronics and household appliances has set up a unique new information repository on its products, Optimize multichannel sales performance by simplifying the processes related to the management of product content. Responsibilities: Analyst Java J2EE Developer • Analysis and Technical Specification. • Addition in the model item of hybris new objects respecting the existing model • Creation in hmc of new products. • Addition of new cronjobs feeds. • Integration of new data (xml, impex) via CronJob • Unit tests and integration tests.. RICHEMONT - LUXURY GOODS - (01/2013 until 12/2013) Project: Development and enhancement of a customized, multi-brand e-commerce solution and a call center for the luxury industry group, Richemont. Responsibilities: Java J2EE Developer Java EE Development: • Established the technical foundation for the call center and developed its new version. • Developed web services accessible by front-end interfaces and ensured seamless communication with back-end systems. • Integrated external service providers (payment, anti-fraud, delivery, address validation) with secure certificate-based authentication. • Secured web services with technical authentication (role definition) and functional authentication (user session management). Addition of new cronjobs feeds. Design and Specification: • Conducted requirements analysis, created specifications, and estimated workloads. • Drafted technical and functional specifications. Test Environment Management and Continuous Integration: • Automated deployment tasks, configuration, testing, packaging, and version management using Hudson (later Jenkins) and Selenium. • Managed the continuous integration platform, deployments, and delivery quality across test environments (dev, preview, and preprod, with over 40 server instances). • Prepared and monitored production releases, providing client support. • Migrated the development environment (from SVN to Git, Hudson to Jenkins).. • Conducted requirements analysis, created specifications, and estimated workloads. DGDDI - (09/2012 until 12/2012) Projet : AUBETTE : The tele-service allows for the search of declarations using their identifiers within a customs clearance application (Delta C, Delta X, Delta D, GAMMA, CIVC Certificate). G@mma: Monitoring and control of the movement of goods subject to excise duties (alcohol, tobacco, and petroleum products...). Responsibilities: Developer JAVA JEE • Management of SOAP Web Service for the G@mma application. • Implementation of multi-language supportCreation in hmc of new products. • Management of user permissions for filtered searches. • Implementation of display screens • Setup of statistics management (Clicky). • Drafting of the acceptance testing document with test scenarios. • Updating the application’s DEX. Tech ENV: WebService, Maven2, ANT, JavaScript, CSS, HTML, CVS, Struts 1.3, Spring, Hibernate , Oracle , Methodologies: UML, Merise. Utilities: FileZella, WinSCP, Putty, soapUI-4.0.1.

TOTAL - (01/2012 until 08/2012) Projet : ATLAS-GR Allows for multi-criteria searches and the ability to export results in PDF format. Service provided under a fixed-price contract. Responsibilities: Java J2EE Developer • Creation of a website in Java J2EE. • Responsible for the realization and creation of the site. • Drafting functional and technical specification documents. • Analysis, design, and development. • Unit testing and integration testing. • Handling various layers of the J2EE architecture (Data Access, Business Logic, Presentation Interface). • Responsible for implementing fixes and enhancements in Java J2EE as part of maintenance activities. • Correction and monitoring of issues. • Assistance with acceptance testing and production deployment. Tech ENV: JPA2.0, Junit 4.0, ANT, JavaScript, jQuery, JSon, CSS ,HTML, iTEXT, SVN, Eclipse, Oracle,Log4j, Methodologies: UML, Merise. Utilities: FileZella, WinSCP, Putty. BANK CREDIT AGRICOLE - (01/2011 until 12/2011) Projet : PIGMENT TMA (Third-Party Application Maintenance) on a CMS (site factory) for the bank CASA. An enterprise portal developed under Vignette 7 (OPEN-TEXT). Responsibilities: Java J2EE Developer • Responsible for implementing fixes and enhancements in Java J2EE as part of TMA. • Development and corrective analysis. • Adaptation of the OpenText API for optimization, qualification tests, and new evolutions. • Bug fixing and tracking. • Participation in impact analysis studies. • Working on different layers of the J2EE architecture (Data Access, Business Logic, Presentation Interface). Tech ENV: JPA2.0, JavaScript, JUnit 4.0, EJB 3, ANT, Maven 2, Struts 2, SVN, Log4j, Eclipse, JBoss, Oracle, Unix.VmWare. Methodologies: UML, Merise. Utilities: FileZella, WinSCP, Putty.Mantis

Projet : TRACE IS is a management platform dedicated to field intervention operations, combining mobility and data acquisition. It handles the entire process: detection or reception of needs, analysis, direction, tracking, closure, and billing. Responsibilities: Java J2EE Developer • Development of a web application for managing work orders. • Development and corrective analysis. • Analysis, design, and development. • Development of an AXA prototype for presenting and entering intervention orders. • Participation in impact analysis studies. Tech ENV: Java J2EE, Hibernate 3, JPA, SVN, Eclipse, Jonas, MySQL 5.1, Swing, AWT. Methodologies: UML, Merise. Utilities: FileZella, WinSCP, Putty.Mantis