Summary
Thomas Sieffert is a seasoned technology leader and current Directeur Technique at Monkey Factory with 12 years of experience building and modernizing web platforms across backend, frontend and DevOps. He combines hands-on engineering (Node.js/TypeScript, PHP, React/Next, Kubernetes) with team leadership and product-facing responsibilities, having led small teams, mentored developers, and onboarded Product Owners. Known for driving developer productivity, he has led monorepo migrations, implemented advanced CI/CD and observability stacks, and introduced Kanban and incident management improvements. A pragmatic architect, he bridges business needs and technical design to deliver high-value solutions and has taught web development while volunteering as a tech lead/product owner for a nonprofit mobile app. Based in Rennes, France, he brings a strong mix of R&D, pre-sales experience and operational DevOps culture to scale products reliably.
12 years of coding experience
15 years of employment as a software developer
Concepteur Développeur Informatique Informatique, Concepteur Développeur Informatique Informatique at ENI Ecole Informatique
IFSIC
BTS IRIS - Informatique et Réseau pour l'Industrie et les Services Techniques Informatique, BTS IRIS - Informatique et Réseau pour l'Industrie et les Services Techniques Informatique at Lycée St Joseph, Lorient
French, English