Open to opportunities

Danylo Boleyko

@danyloboleyko

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Full-Stack Developer building LLM-enabled web apps with clean architecture and measurable performance gains.

Cyprus

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What I'm looking for

I’m looking for a product-focused team where I can build LLM-enabled web applications with clean architecture, fast and reliable UIs, and production-grade data pipelines—delivering measurable performance and cost improvements.

I’m a full-stack developer building LLM-enabled web apps using Vue/Nuxt and FastAPI, with a strong focus on clean architectures, fast UIs, and reliable data pipelines. I care about production outcomes—performance, stability, and measurable cost improvements.

At Zenpulsar, I rebuilt Airflow Reddit parsers (~5× faster: 120s → 24s) and automated social + email pipelines, improving reliability (99%+ success) while cutting proxy cost to $0. I also optimized database and analytics workloads and extended charting experiences with gesture support, reusable plugins, and robust testing.

Experience

Work history, roles, and key accomplishments

Full-Stack Developer

Zenpulsar

May 2022 - Aug 2025 (3 years 3 months)

Built and maintained Vue/Nuxt and FastAPI web apps with LLM features, focusing on fast UIs and reliable data pipelines. Rebuilt Airflow Reddit parsers (~5× faster), designed Prefect 2 orchestration to improve reliability (99%+ success), optimized database/analytics queries, and extended internal charting components.

Full-Stack Developer

Clasta

Jun 2023 - May 2025 (1 year 11 months)

Developed a Quasar (Vue 3) + FastAPI product end to end and implemented a Feature-Sliced Design (FSD) architecture. Introduced a shared UI library and refactored complex components and business logic into modular, testable units with clear state management.

Vue fastAPI

Front-End Developer

Freelance

Feb 2019 - May 2022 (3 years 3 months)

Delivered small web apps using HTML, CSS, JavaScript, and Vue.js, focusing on clean, responsive UIs and maintainable state management. Worked directly with clients to gather requirements and iterate quickly.

HTML CSS JavaScript Vue.Js