• Designing a new Transaction Reporting pipeline (Java 25, Spring State Machine) meant to replace the legacy system: ingests every trade from upstream booking systems (~100,000/day).
• State-driven pipeline: trade normalisation/serialisation, routing & filtering rules, then enrichment from the bank’s reference data and regulatory eligibility decisioning.
• Formatting and emission of messages to regulators (FIX, XML) under timeliness constraints (T+90 s, T+5 min) — usual latency of a few seconds, dominated by external reference-data calls.
• Microservices architecture on AWS (public cloud), parallelised with virtual threads: sustained throughput around 100 trades/s.
• Implemented the upstream IBM MQ queue consumer, secured with SSL/TLS (public-cloud requirement).

Stack Java 25, Spring Boot, Spring State Machine, virtual threads, IBM MQ, AWS, FIX, XML

• Djingo (chatbot for PRO/SMB & Enterprise customers): designed microservices backed by Orange IS APIs and built the Angular UI, orchestrating Orchestrator ↔ UI exchanges.
• Industrialisation of Watson / SmartlyAI conversational flows: testing, validation and optimisation of UI ↔ Orchestrator interactions.
• Shipped to production a GenAI component offloading part of the bot’s intelligence beyond scripted flows: RAG + prompting of an LLM (GPT-3.5) to answer off-script requests.
• Marvin (automatic e-mail classification): orchestrator of scripts and APIs, handling production feedback.
• Maintenance, monitoring and continuous delivery.

Stack Spring Boot 2, Angular 14, Kotlin, TypeScript, Python, MariaDB, Cloud Foundry

• Protocol-translation API Gateway IMS ⇄ Web (full build, pair-programming): migration from the former IBM DataPower solution, exposing new services consuming the mainframe, systematic OAuth2 / HTTPS hardening.
• 1,500 tps at peak / 500+ on average, 20 nodes redundant across regions; Blue-Green delivery in stages with live traffic monitoring.
• Full observability: streamed logs, Kibana analytics, Grafana metrics.
• Reactive Gateway API: user permissions, object visibility, admin endpoints (Hibernate Reactive, MongoDB, DDD/TDD).
• Alerting & project-communication solution from scratch: end-to-end Angular UI, Spring Boot/PostgreSQL backend, OAuth2 (auto profile creation), multi-channel webhooks (mail, MS Teams, SMS), alerting sourced from Prometheus.
• Internal e-learning platform: new features + legacy refactoring (SonarQube, unit tests, SOLID).

Stack Java (Reactor), Spring Boot, Angular 9, PostgreSQL, MongoDB, Strapi, Jenkins, Spinnaker, ArgoCD, Vault, Tomcat