Łukasz Kalemba

I’m a Full Stack Developer with 6+ years of experience building mostly scalable SaaS platforms. I specialize in TypeScript, React, Node, and PostgreSQL, and I focus on designing production-ready systems with clean architecture.

At PlaxidityX, I designed core solutions across the SDLC for a global vehicle fleet security SaaS using Next.js, NestJS, and PostgreSQL. I engineered a GitHub-driven integration for automated security workflows, and I built high-throughput event-driven microservices with Kafka to keep real-time synchronization across distributed systems. I also leveraged AWS services like Lambda, S3, RDS, and Cognito to deliver resilient backend services for international enterprise clients.

Earlier at Beesafe, I led an end-to-end integration with an insurance aggregator, owning both technical implementation and stakeholder communication. I architected and documented an integration framework and delivered high-traffic insurtech microservices using React, Express, PostgreSQL, and BullMQ. I managed containerized deployments with Docker and Kubernetes to keep critical pricing engines highly available.

I’m also proud of how I accelerated delivery without compromising quality: at PlaxidityX and in my earlier roles, I integrated AI-native tools into my daily workflow to maintain strong code quality and security standards. I’ve built internal products at Appstract (including migrating a codebase to TypeScript) and started with client-facing web delivery as a Web Developer Intern, gaining a solid foundation in SDLC and communication.