Summary
John Kalantzis is a seasoned software leader with 16 years of experience, currently serving as Director of Software Development at IQVIA in London. He combines hands-on expertise in Python (Django, Flask, SQLAlchemy, Celery) with strong backend and infrastructure skills in PostgreSQL, Elasticsearch, Kubernetes, AWS, Docker, and Terraform to deliver reliable, scalable systems. Known for bridging developer-centric thinking with operational rigor, he excels at turning complex data-driven requirements into maintainable production services. His role implies deep experience managing cross-functional teams in regulated or enterprise healthcare/analytics environments. While not a prolific public GitHub presence, his track record suggests a focus on high-impact, internal engineering platforms and cloud-native deployments. Colleagues would describe him as a pragmatic technical leader who elevates team delivery through architecture, automation, and mentorship.
16 years of coding experience
English