Independent practice (ScaleFine Pte Ltd). I diagnose, rescue and industrialise mission-critical streaming and production-AI systems ? hands-on, on demand.

• Streaming Engineer on Tap ? senior engineer embedded in the team, Day-1 ready.
• Prove-it ? Ship-it · AI ? evals on real data with real per-run cost before GO / No-GO.
• Data & AI Rescue ? bounded diagnostic, then delivery paid mostly on the outcome.
• Track record: 100K+ events/min sub-300ms · ?10M+/day in production · 97% validated accuracy at ~?0.30/process.

Tech Lead on the data streaming & analytics platform behind ESL's tournaments; set DDD / workflow-design as the service-wide standard.

• Migrated Java/RabbitMQ to Kafka/Scala game-agnostic microservices (state-based ? event-driven).
• Hit sub-300ms latency at 100K+ events/min synchronized via gRPC.
• Architected a 5-step Trino/Spark live query engine returning <3s over years of data.
• Maintained sub-3h MTTR during live production standby.
• Solo-designed a 4-microservice RAG + graph-solver pipeline with human-in-the-loop validation.
• Reached 97% validated accuracy at ~?0.30/process ? a 2h/$20 job down to 5 min, 8 months live.

Rescued a critical backend after the previous team walked out ? regulated EU institution, no handover.

• Reverse-engineered a massive PL/SQL backend and restored technical continuity in weeks.
• Designed a GDPR (DPMS) implementation plan for the DPO's data-protection workflows.
• Drafted the modernization roadmap toward RESTful services.

OTA SIM-provisioning platform (millions of devices) in a 20-person, 5-team org ? senior engineer to Scrum Master.

• Improved an Oracle?Cassandra Spring Batch ETL by 18× throughput with fine-tuning.
• Built Java EE microservices for the OTA SIM lifecycle across the device fleet.
• Re-platformed a legacy EJB estate to containers (Docker, Kubernetes, Kong).
• Scoped the technical solution and pricing for a new secure-IoT engagement.

Led engineering for an e-health knowledge platform spanning 30+ medical specialties.

• Led 3 full-stack developers and owned the DevOps and Agile delivery strategy.
• Built a PyTorch ML microservice auto-classifying medical articles: 80% accuracy in 2 months.
• Shipped the web platform in 6 months and an Ionic mobile app in 4, end to end.

Founded a B2B/B2C dance marketplace from scratch ? product, architecture, payments, legal.

• Quadrupled conversion (4×) via A/B testing across the ads?checkout?payment funnel.
• Shipped a web platform and an Ionic app with automated, EU-compliant payments.
• Built ETL web-scraping pipelines feeding a live, curated event map.

Maintained critical Java/Oracle banking applications inside France's central bank.

• Implemented banking-commission and traceability rules in the core transaction system.
• Ran SQL reporting on transaction volumes and user activity across critical systems.

Modernized FIP, a ?10M+/day platform for mission-critical, semi-structured derivatives, under a zero-downtime mandate.

• Designed an expert AI (rule engine + recursive solver) generating derivatives forward contracts for the entire trading floor ? ?75% drafting time.
• Strangler: PHP monolith ? Java Spring MVC/REST ? ?80% latency, no planned downtime.
• Live trading-floor support alongside Risk Controllers; first Jenkins CI/CD pipeline for the team.

• Designed an internal PHP framework to industrialize ~100 repetitive workflows ? 40% dev-efficiency gain.
• Frontend/backend Java integration via REST APIs · Jenkins & Sonar CI/CD.

• Developed Java Spring features for SIS II, the EU-wide secure border-control data platform.
• Supported Mule ESB services and Oracle ETL data mapping.