Emilien Kenler is a Director of Systems Architecture with 16 years of experience designing and operating distributed systems, infrastructure automation, and autonomous AI, currently leading architecture at pafin in Tokyo. He built his first production-grade IaaS as a student with a Minecraft hosting startup, and since then has scaled systems across gaming, hospitality, and fintech—improving a cryptocurrency ledger computation by 100x while cutting resource use. Emilien is fluent in Terraform, Kubernetes, AWS, and GitOps, and implements fast data pipelines and microservices using Scala, Python, Go and TypeScript with Kafka, Akka, gRPC and Flink. He contributes to open-source tooling like ansible-lint and helped containerize complex app stacks (e.g., Kitsu tools), reflecting a hands-on DevOps pedigree. Author of Agentic Engineering (2026) and MariaDB Essentials (2015), he combines pragmatic engineering with a deep interest in agentic AI, applying decades of failure-tolerant orchestration lessons to autonomous systems.
16 years of coding experience
7 years of employment as a software developer
Master's degree, Computer Science, Master's degree, Computer Science at Université de Technologie de Compiègne
ansible-lint checks playbooks for practices and behavior that could potentially be improved and can fix some of the most common ones for you
Role in this project:
Backend & DevOps Engineer
Contributions:15 commits, 2 PRs, 8 comments in 1 year 2 months
Contributions summary:Emilien made significant contributions to `ansible-lint`, primarily focusing on improving the codebase and adding new features. They addressed bugs like `TypeError` and incorrect usage of `isdisjoint()`, and implemented enhancements to improve the rule matching logic, like supporting block-level rule matching. Their work involved code refactoring, adding new functionalities to existing rules, and integrating with Ansible's core components.
:hammer: The tools we use to build Kitsu, the coolest platform for anime and manga
Role in this project:
DevOps Engineer
Contributions:16 commits, 3 PRs, 30 comments in 7 months
Contributions summary:Emilien primarily focused on setting up the infrastructure and build process for the Kitsu-tools repository. Their contributions include creating a Docker-based development environment, configuring environment variables for PostgreSQL and Redis, and integrating Node.js and Ember.js build processes. The user also worked on database initialization and migration scripts, ensuring the application can be run within a Docker container. Furthermore, they integrated Elasticsearch and configured the application to use it.
kitsuhammerdockerhummingbirdmanga
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.