Frontend-Focused Full-Stack Developer

Stepan A

Information

Available hours \ week
40 h/w
Seniority level
Middle
Years of experience
5 yrs.
Location
Ukraine, Ivano-Frankivsk
Nationality
Ukraine
Timezone
(GMT+02:00) Kyiv

Languages

Ukrainian
Fluent (C2)
English
Intermediate (B1)

About

Stepan is a Full-Stack Developer (Frontend-Focused) with five years of experience in building dynamic web applications and mobile solutions. His expertise lies primarily in frameworks such as React.js, React Native, and Node.js, along with advanced proficiency in TypeScript. He has successfully managed frontend and backend functionalities across diverse industries including Renewable Energy, Fintech, EdTech, and Travel. With a strong focus on performance optimization and user experience, Stepan has developed responsive interfaces that integrate REST APIs and complex data flows. He has contributed to projects requiring real-time data management and has experience with state management libraries like Redux and advanced query languages such as GraphQL. Stepan holds a degree in Computer Science from Ivan Franko National University of Lviv. He is continuously seeking to expand his knowledge and remain updated with industry trends, ensuring the delivery of scalable and maintainable solutions.

Experience

Anywhere Platform

Full-Stack Developer

About the Project

Worked on a travel platform that provides users with the ability to explore destinations, plan trips, and manage bookings. The platform included both customer-facing features and internal admin tools for managing content, destinations, and operational data. The system was designed to deliver a seamless user experience and support complex travel workflows, including dynamic content and data-driven decision making.

  • Travel

Responsibilities

Developed and maintained an internal admin panel using React and Next.js for managing platform content and operational data. Implemented GraphQL APIs and integrated them into the front-end for efficient data fetching and state management. Contributed to back-end logic, ensuring scalable and structured data flow. Built reusable components, improved performance, and worked on optimizing user experience across the platform. Collaborated with cross-functional teams to deliver stable and maintainable features.

Confidential EdTech Project

Full-Stack Developer

About the Project

Contributed to the development of an educational platform for users in the UK, focused on delivering structured learning content and interactive user experiences. The platform provided course management, user progress tracking, and content delivery features. It was designed to support scalable learning workflows and ensure a smooth experience for both learners and administrators. Due to NDA restrictions, specific implementation details cannot be disclosed.

  • EdTech

Responsibilities

- Developed and maintained front-end functionality using React with Redux, Redux Saga, and React Query for state and data management. - Integrated REST APIs and implemented complex data flows for user progress, content delivery, and interaction logic. - Worked on performance optimization, component architecture, and scalable state management. - Contributed to back-end development using Node.js, supporting API endpoints and application logic. - Collaborated with the team to deliver stable and maintainable features.

Skills & technologies

Ukrtech Info

Front-End Developer

About the Project

Worked on a web platform that included a reusable website builder system used for creating multiple client websites. The core idea was to develop a flexible template-based architecture that allowed rapid development of new sites by reusing components and applying different styles and configurations. The platform enabled efficient scaling of web projects with consistent structure and customizable UI for different business needs.

  • E-commerce
  • Marketing

Responsibilities

- Designed and developed a reusable front-end architecture based on templates and shared components. - Built flexible UI components that could be easily adapted for different projects through styling and configuration changes. - Worked on layout systems, theming, and component reusability to speed up development across multiple websites. - Integrated APIs, ensured cross-browser compatibility, and optimized performance. - Contributed to improving development workflows and reducing time-to-market for new projects.

Skills & technologies

Confidential FinTech Project

Front-End Developer

About the Project

Contributed to the development of a high-load fintech platform focused on cryptocurrency trading and financial operations. The product was a responsive web application designed for retail users and traders, providing real-time market data, charts, and secure transaction flows. The platform ensured a seamless user experience across desktop and mobile browsers. Due to NDA restrictions, specific implementation details cannot be disclosed.

  • Fintech
  • Cryptocurrency
  • Blockchain

Responsibilities

- Developed and maintained responsive web interfaces using React, ensuring a smooth experience across devices. - Integrated REST APIs for real-time market data, user accounts, and transaction flows. - Built reusable UI components and implemented state management. - Focused on performance optimization, data rendering efficiency, and UX improvements. - Collaborated closely with backend services to ensure reliable and secure data exchange.

Skills & technologies

Front&back

Front-End / Full-Stack Developer

About the Project

Worked on internal and client-facing web and mobile solutions related to solar energy management. The main focus was on building and improving administrative panels and supporting mobile functionality for monitoring, configuration, and operational workflows. The products were designed for business users who needed to manage solar station data, system settings, users, and key processes through convenient digital tools. Due to NDA restrictions, project-specific details cannot be disclosed.

  • Renewable Energy
  • Energy

Responsibilities

- Developed and maintained front-end and back-end functionality for web applications using React and Express. - Contributed to mobile app development with React Native. - Built UI components, integrated REST APIs, implemented business logic, and supported admin panel features for operational management. - Worked on application architecture, bug fixing, feature delivery, and performance improvements, while collaborating with the team to deliver stable and scalable solutions.

Cody Solutions

Front-End / Full-Stack / Mobile Developer

About the Project

Led and contributed to the development of multiple high-load web and mobile applications across fintech and media domains. The projects included secure financial dashboards, real-time data platforms, and media-based systems with video streaming and complex user interactions. The focus was on building scalable, performant, and user-friendly products. Due to NDA restrictions, specific project details cannot be disclosed.

  • Fintech
  • Media
  • AdTech
  • Cryptocurrency

Responsibilities

- Developed and maintained cross-platform applications using React, React Native, and modern state management solutions. - Built complex UI systems, dashboards, and real-time features including streaming and live data updates via WebSockets. - Implemented scalable architecture, reusable components, and optimized performance for high-load scenarios. - Integrated REST and WebSocket APIs, handled asynchronous data flows, and ensured smooth user experience across devices. - Collaborated on architectural decisions, improved system performance, and delivered production-ready features in a fast-paced environment.

Education

Ivan Franko National University of Lviv

2014 - 2020
Computer Science