Богдан

Semenov Bohdan
Middle Full-stack/Frontend Developer
[open contact info](look above in the "contact info" section) • [open contact info](look above in the "contact info" section) • telegram • linkedin

SUMMARY
I am a Full-Stack Developer (React, Next.js, Node.js) with over 3 years of experience. I specialize
in frontend architecture, performance optimization, and scalable UI development. I have
improved SEO, user experience, and project maintainability. I have experience building MVPs and
refactoring legacy codebases to speed up the development of new features.

Skills
Front-End: JavaScript (ES6+), TypeScript, React, Next.js, Redux, Zustand, Tanstack Query
Back-End: Node.js, Express, NestJS, Strapi, RESTful API, PostgreSQL
UI & Styling: SCSS/SASS/LESS, СSS/JSS, antd, MUI, Chakra UI, Tailwind, styled-components
Tools & Infrastructure: Webpack, Vite, Git, CI/CD, GitHub Actions, Docker, Google Analytics
Languages: English (B1), Ukraine (native)

Experience
RUHANKA
Full-Stack Developer Jan 2024 - Sep 2024
Developed a well-thought-out frontend architecture, simplified and optimised the codebase, enabling
100% faster changes and new features to be added
Created an independent and flexible user interface reduced reliance on libraries, which improved
maintainability and increased site load speed by 20%
Improved SEO and search visibility by implementing SSR/SSG on (Next.js), adjusting page indexing and
optimising metadata, resulting in a 50% increase in visitors
We integrated Google Analytics, worked with the designer to analyse the data and improved the UI/UX
to increase user time on page by 2 minutes and increase conversion by 50%
Set up CI/CD (GitHub Actions), improving feature delivery speed by 90%

MINDTECH STUDIO
Front-end Developer Jun 2023 - Nov 2023
Accelerated development, improved application performance and UX by eliminating prop drilling using
the Context API and Redux
Expanded the functionality (wagmi) of the MVP and added responsive design (ChakraUI), so the client
received an extended demo and decided to continue working with the company
Analysed the project and prepared frontend documentation, which increased team efficiency,
accelerated change implementation and simplified code debugging
Ensured smooth API integration by actively liaising with backend developers.

OPENTECH
Front-end Developer Apr 2021 – Mar 2023
Developed a project from scratch, selecting optimal technologies and architectural solutions. Built a
custom MUI-based component library, implemented optimized drag-and-drop mechanics, enhanced a
text editor, collaborated with the backend for faster development, and conducted code reviews to
improve quality and efficiency

Courses
GeekHub Sep 2019 - Mar 2020
Frontend + CMS
Basic concepts of JavaScript include data types, working with arrays and objects. Advanced-
level HTML/CSS markup.