Roman Kozak Email & Phone Number

Chicago, IL, US

San Francisco, California, United States

Chicago, Illinois, United States

Phenix is the go-to provider for real-time video streaming solutions and the only company that can stream synchronous real-time video to broadcast sized audiences. Phenix is the only company that can deliver content to broadcast sized audiences while maintaining less than 1/2 second of latency.- Designed and implemented a dashboard for simultaneous channel.

Lviv Region, Ukraine

- Participated in the development of a UI components library for the large enterprise, reducing development and maintenance costs by nearly 30% - Rewrote a critical module from legacy code to React, addressing bugs and improving efficiency. This halved the response time and enabled the module to seamlessly handle the load of over 5 million concurrent users.

Lviv, Ukraine

- Manage project resources, balance team workloads, and ensure efficient use of time and budget- Led a team of 7 developers in the design and development of an advanced brokerage ticketing system, increasing company earnings by 30%- Led a team of 5 developers in creating an application for Privacy/GDPR compliance services, which attracted 15 new customers.

Lviv, Ukraine

- Spearhead the planning and delivery of frontend development projects, ensuring they meet client expectations and deadlines.- Recruit, train, and guide a team of frontend developers, fostering a collaborative and productive work environment- Create and maintain responsive, high-quality user interfaces using modern technologies like HTML, CSS, JavaScript.

Lviv Region, Ukraine

- Delivered the first stage of the application to the customer within a tight deadline of 2 months, leading to a successful pitch and raising $2 million in investments- Developed a dashboard for the IoT devices application increasing user engagement by 35%

Lviv Region, Ukraine

As a Frontend Mentor at GOITeens, an innovative studying platform for teenagers, I guided a team of students aged 11-13 through the "Frontend: Basics" course. This course focused on foundational knowledge in HTML, CSS, and JavaScript.I developed the curriculum and created comprehensive study materials for weekly classes. My responsibilities included.

Lviv, Ukraine

- Designed and built multiple WordPress-based websites, enhancing local businesses' customer engagement and service sales- Created intuitive interface and compelling content to optimize user experience for local cleaning business, resulting in 20+ new clients in the first month

Lviv, Ukraine

- Collaborated with designers to translate mockups into responsive web pages, ensuring a consistent look across all devices- Conducted cross-browser testing to ensure compatibility and a seamless user experience across different web browsers- Assisted in the implementation of SEO best practices, contributing to a 15% increase in organic traffic

Master'S Degree, Computer And Information Sciences, General

Bachelor'S Degree, Computer Science