Dawid Denis Malbork

Architected and developed modular telecom web applications using React, TypeScript, and microfrontend architecture to enable scalable feature delivery. Designed backend microservices with Node.js and GraphQL to manage subscriber data, service provisioning, billing integration, and network configuration workflows. Implemented real-time dashboards using WebSockets and Redis pub/sub. Built distributed caching to reduce API latency at high load. Implemented OAuth2 authentication flows with telecom identity providers. Added asynchronous job processing with RabbitMQ for provisioning queues and billing sync. Containerized services with Docker and deployed to AWS with CI/CD automation. Led architecture reviews and KT sessions on microservice orchestration and event-driven communication. Optimized database indexing and query performance for high-throughput telecom transactions. Introduced structured logging and ELK observability stack.

Designed and implemented scalable e-commerce microservices for product catalogs, order lifecycle, pricing engines, and fulfillment workflows. Built React storefront/admin dashboards with normalized state management and SSR optimizations. Implemented event-driven order processing pipelines using RabbitMQ for asynchronous payment validation and shipment updates. Developed pricing and promotion engines with dynamic rule evaluation and transactional integrity. Integrated payment gateways and implemented idempotent order processing. Designed relational schemas optimized for high-write workloads and transactional consistency. Built AI-based analytics pipelines for customer behavior and anomaly detection. Automated CI/CD pipelines using GCP with container orchestration. Led cross-team discussions on performance tuning and horizontal scaling.

Built a scalable frontend web application using React/TypeScript and Tailwind CSS, integrating Redux and Context API for complex state management. Created real-time dashboards as microfrontends with AG Grid and Chart.js, and added a caching layer to improve API response times by ~30%. Designed and deployed microservices for user management, document processing, inventory management and analytics pipelines using Node.js/GraphQL/MySQL, containerized with Docker. Implemented RabbitMQ for asynchronous job queues and inter-service communication, enhancing decoupling and resilience. Developed ETL pipelines with PySpark and integrated AWS Textract for OCR in EHR workflows. Integrated third-party APIs (Xero, Chrono24, eBay) via dedicated microservices. Deployed CI/CD pipelines with Jenkins and managed AWS CodePipeline/CodeCommit. Built a Python/OpenAI GPT-based authentication microservice using LangChain and Pinecone. Implemented cron jobs for email campaigns with Loops and ELK stack for track