Aurélien Courreges-Clercq

Independent practice, ScaleFine Pte Ltd, Singapore. I diagnose, stabilise and industrialise mission-critical streaming and production AI systems, hands-on and on demand. I work across four engagement formats: • Assessment: identify root causes, expose risks, and define the smallest credible remediation path. • Proof Sprint: measure feasibility, quality, cost, latency and Go / No-Go criteria before funding a build. • Build & Stabilise: migrate, harden or industrialise a validated system, with explicit scope, milestones and acceptance criteria. • Fractional CTO & Advisory: provide recurring senior direction on architecture, reliability, technical roadmaps, build-vs-buy choices and critical incidents. Selected outcomes: • 100K+ events/min at sub-300 ms latency. • €10M+/day production systems. • 97% human-validated AI accuracy at ~€0.30 per case. • 18× throughput on an Oracle-to-Cassandra migration.

Tech Lead on the data streaming & analytics platform behind ESL's tournaments. I unified a stream into a game-agnostic data model — state-based to event-driven — and set DDD / workflow-design as the service-wide standard. Streaming & analytics: · Migrated Java/RabbitMQ to Kafka/Scala game-agnostic microservices with event-driven format. · Hit sub-300ms latency at 100K+ events/min synchronized via Grpc. · Architected a 5 steps Trino/Spark live query engine: <3s / years of data. · Maintained sub-3h MTTR during live production standby technical assistance. · Drove bi-weekly releases, Scala/DDD mentoring and tech comparative analyses. GenAI & automation: · Solo-designed a 4-microservice pipeline (RAG + graph-solver) with human-in-the-loop validation. · Reached 97% accuracy at ~€0.30/process — a 2h/$20 manual job down to 5 min, 8 months live.

Parachuted in to rescue 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.

Contributed to Gemalto's OTA SIM-provisioning platform (millions of devices) in a 20-person, 5-team org — growing from senior engineer to key contributor, then Scrum Master. · Improved an Oracle→Cassandra Spring Batch ETL, by 18× throughput speedup with fine-tuning · Built Java EE microservices for the OTA SIM lifecycle across the device fleet. · Refactored the cross-team core business-expert library bottlenecking the international project. · 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 — architecture to shipped product. · 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. · Added Algolia-powered search across articles, products and documentation.

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. · Drafted the contractual guidelines and EU payment-compliance for the marketplace.

Maintained critical Java/Oracle banking applications inside France's central bank — regulated, zero margin for error. · 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. The system managed Sales through Structurer to Risk engineers workflows, under a zero-downtime mandate with core integrations. · Recursive AI solver: Java rules engine resolving nested formula dependencies · 75% reduction in contract drafting time · Strangler Pattern migration: PHP monolith → hybrid Java Spring MVC REST · 80% latency reduction post modernization · Live trading floor support alongside Risk Controllers · Spring Batch ETL pipelines for FX-quote scheduling · First Jenkins CI/CD pipeline for the team (UAT/PRD)

Mobile subscription management interface (~100 distinct workflows). · Designed internal PHP framework to industrialize repetitive workflows — 40% dev efficiency gain · Frontend/backend Java integration via REST APIs · Jenkins & Sonar CI/CD

• Developed Java Spring features for SIS II secure data platform • Supported Mule ESB services and Oracle ETL data mapping

• Took over VoIP portal (PHP/MySQL/JS) after lead departure • Maintained Android apps; supported multi‑cultural teams

• Prototyped ontology‑based skill‑path engine (API/UI) • Led client workshops to define requirements.

• Assisted Java workshops and maintained music‑recommendation prototype • Participated in innovation sessions with students and researchers