Leonard Armanowski
Software Engineer at CodiLime
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolLeonard Armanowski is a full-stack software engineer based in Warsaw with nine years of professional experience building scalable web applications and data-rich UIs. He specializes in React, TypeScript and Node.js and has led frontend development for AI-driven platforms, creating reusable component libraries, real-time WebSocket message queues and D3-powered visualizations. His background spans finance-grade frontend work (LitElement at ING), network topology and graph algorithms for visualization, and early-career backend and BI components, giving him a practical cross-stack fluency. Leonard pairs hands-on performance optimization and API design with collaborative product work alongside designers and clients, and he has a knack for turning complex domain models into intuitive interactive interfaces. Less obvious: he has repeatedly modernized legacy systems—refactoring and integrating microfrontends and observability tools—to improve maintainability and real-time monitoring.
9 years of coding experience
6 years of employment as a software developer
Polsko-Japońska Akademia Technik Komputerowych w WarszawieTechnik Informatyk, Technik Informatyk at Technikum Mechatroniczne nr. 1 w Warszawie
English, Polish
Github Skills (20)
monitoring10
dashboard10
mysql10
data-visualization10
visualization9
analytics9
visualize9
grafana9
composable9
go9
prometheus9
influxdb9
elasticsearch9
business-intelligence8
observability8
Programming languages (2)
Github contributions (5)
yohadams/react-ts-mui-recoil-boilerplate
Aug 2022 - Aug 2022
Contributions:6 pushes, 3 branches in 3 days
yohadams/unstable-block
Oct 2021 - Oct 2021
Contributions:6 pushes, 2 branches in 1 day
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