Yaroslav Boiko
Senior Frontend Developer at Comet
l'Hospitalet de Llobregat, Catalonia, Spain
Summary
🤩
Rockstar🎓
Top SchoolYaroslav Boiko is a Senior Frontend Developer with nine years of cross-industry experience delivering high-impact web and mobile products across digital marketing, e-commerce, agriculture tech, delivery services, and banking. He excels in TypeScript, React, Vue3, Next.js, Astro and TailwindCSS, and pairs strong UI craftsmanship with backend-aware solutions like GraphQL and Node.js to boost performance and reliability. As a hands-on team lead at Capgemini and contributor to Comet’s opik repo, he blends shipping polished front-end features with API integrations and UX-focused tooling for AI/LLM workflows. Notable wins include a Cordova Stripe integration that raised paid orders by 30–40% and a frontend redesign at Regrow Ag that improved app performance 4–5x while adding a GraphQL/Redis middleware to speed data loads. Based in Catalonia, he follows rigorous testing and agile practices and brings an unusual background—medical studies—into a pragmatic, user-centered engineering approach.
9 years of coding experience
8 years of employment as a software developer
Доктор медицины, Семейный врач, 5, Доктор медицины, Семейный врач, 5 at Zaporizhzhya State Medical University
English
Github Skills (17)
apim10
javascript10
component-design10
ui-components10
api10
front-end-development10
react10
user-interface9
typescript9
css9
typescript-types9
typescripts9
html9
langchain7
llm7
Programming languages (7)
Github contributions (5)
comet-ml/opik
Sep 2024 - Apr 2025
Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:24 reviews, 61 PRs, 92 pushes in 7 months
Contributions summary:Yaroslav's contributions primarily focused on front-end development, specifically enhancing the user interface and experience of the application. They implemented new features, such as a quickstart guide with framework integrations, and made improvements to existing components, including the home page and experiment dialog. The user also worked on integrating comments functionality for both traces and spans and implemented code snippet execution features. Their work involved React, UI component design, and integrating with the application's API and styling.
langchainllama-indexllmllm-evaluationllm-observability
awkoy/easy-site
Sep 2020 - Dec 2022
Contributions:165 pushes, 1 branch in 2 years 3 months
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