Stieven Dons

Progressed through 18+ years of full-stack engineering across B2B media, events, education, FinTech, e-commerce, financial analytics, and AI-driven platforms. Managed and evolved multiple B2B publication/event websites, building custom themes/plugins, registration systems, access control, and integrations with Salesforce/Exact Online/Pardot. Delivered full-stack platforms for career-access products (Ruby/JavaScript). Engineered credit-model pipelines using Ruby/Clojure/React/AWS ecosystems to support large US business finance workflows. Built an instant decision engine to reduce approval times to under one minute for 60% of applications during the pandemic. Architected cloud-native FinTech and e-commerce systems with Node.js/React/Angular/AWS/RPC/Kafka/Docker and event-driven microservices; built scalable Next.js applications using SSR/ISR/SSG and optimized performance and accessibility with reusable TypeScript components (Tailwind, Storybook, WAI-CAAG). Designed APIs and backend servi

Designed, architected, and deployed scalable full-stack and AI-driven platforms for a B2B media company organizing trade publications, conferences, and industry events, using Python, FastAPI, Flask, Django, React, TypeScript, ML, cloud infrastructure, and distributed systems. Built production ML inference APIs for NLP document classification and fraud detection, delivering real-time, low-latency predictions with high availability, and created interactive React platforms for model feedback, analytics, and re-training workflows. Architected Python microservice ecosystems using FastAPI/Flask/Django, Celery, Redis, RabbitMQ, and asynchronous I/O, supporting very high throughput. Built real-time ingestion, payment verification, reconciliation, and background processing pipelines using PostgreSQL, Redis, AWS Lambda, S3, Kinesis, and distributed queues—improving processing throughput and reducing financial discrepancies. Implemented ML/MLOps tooling integrating Hugging Face Transformers, sp

Owned technical architecture and implementation of high-profile client websites including Playboy Netherlands, Playboy Cyberclub, and Nieuwe Revu. Delivered custom web platforms for public library organizations such as Bibliotheek Arnhem, Bibliotheek Lek & IJssel, and Bibliotheek De Kempen. Provided ongoing technical support, maintenance, and production troubleshooting across the agency’s client portfolio.