Léonard Hetsch
Senior Engineer at Oddbox
London, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolLéonard Hetsch is a senior software engineer based in London with 13 years of hands-on experience building high-traffic backend systems and platform tooling across Ruby/Rails, Elixir/Phoenix, Go and cloud-native stacks. He has led backend engineering at consumer-scale products handling hundreds of thousands of daily users and peak API loads, and recently focused on coaching and curriculum leadership at Makers while shipping LLM/RAG prototypes and cloud tooling. Comfortable across DevOps, data pipelines and distributed systems, he designs resilient APIs and infrastructure with Terraform, Kubernetes, AWS and observability tools. Léonard pairs pragmatic engineering with mentorship—he’s coached engineers now at major tech firms and enjoys teaching best practices, architecture and TDD. Equally curious about front-end, mobile and platform work, he deliberately cultivates polyglot fluency to solve cross-team problems. He’s driven by product impact and continuous learning, often translating research and talks on software architecture into practical improvements.
13 years of coding experience
7 years of employment as a software developer
Concepteur Réalisateur Multimédia en Alternance Multimédia / Web, Concepteur Réalisateur Multimédia en Alternance Multimédia / Web at Gobelins, l'école de l'imageDUT Services et Réseaux de Communication, DUT Services et Réseaux de Communication at Aix-Marseille
French, English
Stackoverflow
1reputation
0reached
1answer
0questions
Github Skills (38)
javascript10
twitter10
css10
fmi10
explore10
nodejs10
react10
twilio10
js-template9
rebuild9
cli9
instagram7
hex7
laravel7
stripe-api7
Programming languages (8)
Github contributions (5)
makersacademy/acebook-rails-template
Feb 2021 - Nov 2022
Template for the AceBook project
Contributions:8 commits, 8 PRs, 4 pushes in 1 year 9 months
template
leoht/forms
Apr 2013 - May 2013
Contributions:38 commits in 1 month
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