Євгеній

Yevhenii Bilyk
Software Developer
I am an experienced full-stack developer with over 5 years of experience in building
complex web and mobile applications, designing system architectures, integrating AI
solutions, and building engineering teams. I have deep expertise in designing and
implementing solutions from scratch, including server-side application development,
rich text editor development, the use of AI agents, CI/CD implementation, test
 [open contact info](look above in the "contact info" section) writing, and technical documentation
 Kyiv, Ukraine
 Date of birth 29/02/2000
 [open contact info](look above in the "contact info" section) Education

General medicine
From September 2017 to September 2021
Languages Bogomolets National Medical University Kyiv, KV, Ukraine

Ukrainian
Native
Work experience
English
Head of Engineering
Since April 2025 Flexum.io Remote
Computer skills Engineering team leadership, mentoring, and supervision
Building technology strategy and solution architecture
Typescript Code reviews, implementation of best practices, and process standardization
Organization of team workflows
Javascript
Development of diffing algorithms for comparing data structures
Node.js Building rich text editors and AI interfaces
Development of applications with real-time collaborative editing
SQL Initiation of R&D directions and scaling of technological solutions

React Native Fullstack Developer
From June 2021 to June 2024 Flexum.io Remote
Rust (basic)
Architecture and development of full-stack web applications (NestJS, React)
Google Cloud Platform Mobile application development (React Native)
Building backend servers, REST / GraphQL APIs
Integration with third-party services
Development of custom rich text editors
Social networks AI interfaces (RAG, CAG, model fine-tuning, tools, agents)
Implementation of testing (unit/e2e), CI/CD, and documentation
 @zhebil
Code reviews and mentoring of other developers
 @zhebil
Frontend Developer
 @zhebil
June 2021 BranchupPro Remote
Development of multi-page websites from design mockups (pixel-perfect,
responsive, cross-browser compatible)
3D animations and performance optimization
Creation of JavaScript libraries to extend functionality

Frontend Developer
June 2021 DTeam Remote
Participation in the development of a web application (React + Django)
Team collaboration, component-based approach, API integration

Frontend Developer
From 2020 to 2021 Freelance Remote
Website layout and logic designed for complex functionality
Adding animations, responsiveness, and cross-browser compatibility