Open to opportunities

Daniil Sapa

@daniilsapa

Message

Front-end engineer specializing in React and performance-driven web applications.

Poland

Message

What I'm looking for

I seek a role where I can drive front-end performance and architecture, mentor engineers, work remotely with collaborative teams, and modernize legacy systems.

I am a front-end engineer with 7 years of professional experience, including 6 years working remotely with globally distributed teams. I specialize in React, TypeScript, and performance optimization, and I have maintained large-scale codebases and modernized deployment and testing pipelines.

I have a track record of reducing LCP by over 40% and Total Blocking Time by over 70%, mentoring junior engineers, and driving initiatives for better tooling and application design. I hold a Master’s degree in Computer Engineering and enjoy building user-focused web products like my PomodoroWorks project.

Experience

Work history, roles, and key accomplishments

Current

Frontend Engineer

Current

Pixelteh

May 2019 - Present (6 years 5 months)

Maintained and refactored large-scale content websites (peaked at 1M daily uniques) and back-office apps, improving LCP by >40% and Total Blocking Time by >70% while modernizing deployment and testing pipelines.

ReactJS TypeScript JavaScript Redux NodeJS Performance Optimization CI CD Webpack HTML CSS

Full-Stack Engineer

Pixelteh

Mar 2018 - May 2019 (1 year 2 months)

Delivered UI and server integrations across diverse projects (landing pages, social features, SaaS, crypto trading) and implemented RESTful APIs and client logic to meet product requirements.