Summary
Sebastian Sibelle is a pragmatic technical leader with 11 years of full-stack engineering experience, currently heading Engagement Systems at Greenpeace International where he oversees multiple product and community teams driving global digital maturity. He blends hands-on expertise in JavaScript, PHP, cloud DevOps (GCP/AWS, Docker, Kubernetes) and data pipelines with proven delivery of large migrations and CRM integrations (Salesforce, HubSpot, Stripe). Sebastian has repeatedly led complex change programs for mission-driven organisations—designing donor migration systems, real-time payment synchronisation, and enterprise tooling adoption—while upskilling teams in agile practices. Known for a “professional bedside manner,” he pairs stakeholder empathy with technical rigor to translate strategy into reliable systems. Outside of core delivery, he focuses on climate advocacy through smarter technology, applying product thinking to maximise impact across non-profits and social enterprises.
11 years of coding experience
11 years of employment as a software developer
The University of Melbourne
English, French