Swann Castel
Senior Software Engineering at Swan
Paris, Ile-de-France
Summary
👤
Senior🎓
Top SchoolSwann Castel is a senior software engineer based in Paris with eight years of hands-on experience building distributed, cloud-native web systems. He specializes in TypeScript/Node.js, GraphQL and functional programming (fp-ts), and has driven improvements in code quality, observability and modular architecture across fintech and SaaS products. At Swan he focused on KYC and account management, introduced stricter TypeScript patterns, dead-code detection, and domain-driven design to reduce anemic models and create bounded contexts. He also has strong DevOps instincts—migrating infrastructures to Pulumi/Fargate, optimizing AWS costs, and building Prometheus/Grafana monitoring and custom dashboards for production debugging. Comfortable across frontend and backend stacks, Swann has delivered reusable component libraries, integration testing pipelines and large data recoveries/ETL work with Postgres. Outside the obvious, he enjoys puzzles and brings that problem-solving mindset to designing schedulers, cron-driven workflows and homegrown tooling.
8 years of coding experience
5 years of employment as a software developer
Formation d'Ingénieur Par Alternance (FIPA) , Ingénierie informatique, Formation d'Ingénieur Par Alternance (FIPA) , Ingénierie informatique at ENSIIE - École Nationale Supérieure d'Informatique pour l'Industrie et l'EntrepriseDUT, Informatique, DUT, Informatique at Université de Reims Champagne-Ardenne
French, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (52)
todoist10
coc-nvim10
neovim-plugin10
language-server-protocol9
vim-plugin9
vim9
nodejs9
lua9
nvim9
complexity8
session-store8
api8
foalts8
documented8
sdk8
Programming languages (7)
Github contributions (5)
cr4ftx/dotfiles
Jun 2019 - Jan 2023
🖖 My minimalist dotfiles config
Contributions:15 commits, 6 PRs, 353 pushes in 3 years 7 months
vimminimalisttmuxconfigstow
swanncastel/ensiie-project
Oct 2018 - Nov 2018
Contributions:282 commits, 59 PRs, 137 pushes in 28 days
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