Micaël Paquier

Software Engineer, Architect, Speaker

Career

Micael Paquier is a Swiss Principal Software Engineer at Migros Online, Switzerland’s leading online supermarket. Over the past decade, he has evolved within the company from an Analyst Developer to IT Architect, and now holds a key role in shaping the technical landscape.

Previously, Micael was an entrepreneur, running his own consultancy where he provided web development, and security services. Before that, he spent 4 years in the industry, first as a Software Engineer, then as a Security Manager, working on a highly used Swiss eGov application.

He also has a background in academic research, having worked as a scientific assistant after completing his MSc in Computer Science at EPFL, Switzerland.

Areas of Expertise

Micael specializes in backend development, system architecture, and DevOps. He was part of the core team that successfully migrated Migros Online’s IT systems to the Cloud. His main focus areas include:

  • Continuous Delivery & Deployment Automation
  • Software Quality & Automated Testing
  • Systems Stability & Performance
  • Secure Development Practices

Key Technologies

With a transversal role as an architect and principal engineer, Micael has worked with a wide range of technologies, including but not limited to:

  • Backend & Cloud: Java, Maven, Spring Boot, OpenShift, Kubernetes (Azure)
  • Monitoring & Observability: DataDog, Kibana
  • Development & CI/CD: REST API, Microservices, SQL Server, GitHub, GitHub Actions

Writing & Speaking

Micael enjoys sharing knowledge through tech articles and talks at meetups & internal tech conferences. His topics include:

  • Code Coverage & Mutation Testing
  • Feature Flags & Continuous Delivery
  • Legacy Code & Software Maintainability
  • Developer Productivity & Motivation

In addition to this, he co-organized internal knowledge-sharing events at Migros Online, including bi-monthly tech talks, the “Onliners Summit” tech conference, and the “HackDays” hackathon, fostering collaboration and innovation within the teams.

In the past, Micael had also published a few research papers in the field of widgets communication, and p2p security.