Nice to meet you! I’m Yevhen Bosak.

Based in Warsaw, I’m a front-end engineer with 5+ years of experience building fast, accessible, and reliable interfaces in Vue/Nuxt, with a strong focus on performance and growing full-stack skills (Laravel / Nest).

Contact Me Download Resume
Yevhe Bosak's image

About me

Front-end developer with 5+ years of commercial experience, contributing across teams from solo projects to groups of a dozen. I take features from client discovery to production, owning UX specs, component design and performant implementations — shipping reusable systems, fast load times and automated test pipelines. I’ve boosted organic visibility ~34% and delivered ≈40% improvements to Core Web Vitals through targeted SEO and performance work.

In addition to core front-end work, I’ve implemented testing strategies (Jest & Cypress) and CI workflows to keep codebases stable and reviewable. I’m passionate about growing my backend expertise and regularly experiment with server patterns and deployment automation in my spare time.

Contact Me
Yevhen Bosak in the cool coat

My services

Hover to see them

Cross-Browser & Performance Optimization

Cross-Browser & Performance Optimization

I craft adaptive layouts that work flawlessly across browsers, boosting performance like a 41% FCP and 36% LCP gain for seamless, fast user experiences.

Email Me
Front-End Development

Front-End Development

With Vue.js, Nuxt.js, and TypeScript, I build interactive, optimized UIs, modular components and 90% test coverage with Jest for stunning, reliable web apps.

Email Me
SEO & UX Enhancement

SEO & UX Enhancement

I elevate SEO scores (e.g., from 59 to 93) and refine UX with TailwindCSS and Vuetify, ensuring your site ranks high and delights users.

Email Me

Work Experience

Full-stack Developer at IKOL System
Warsaw
Apr 2024 - Present · Full-time
Vue 2&3, TypeScript, JavaScript, PHP, HTML, CSS, SCSS, BEM, Jest, PHPUnit, etc.
  • Led migration from Vue 2 + JavaScript → Vue 3 + TypeScript, modernizing the codebase, improving DX, and enabling stricter typing and safer refactors.
  • Introduced a PR checklist and code-review SLAs; enforced stricter review standards that reduced critical production bugs by 50%.
  • Mentored and coached 3 engineers, driving peer reviews, onboarding, and technical growth.
Front-end Developer at Panda Team
Remote
Feb 2021 - Apr 2024 · 3 Years
Nuxt 2&3, Vue 2&3, JavaScript, TypeScript, HTML, CSS, SCSS, TailwindCSS, Vuetify, PHP, etc.
  • Improved landing page SEO score from 59 to 93 using the best performance optimization practices
  • Enhanced website performance metrics by optimizing core web vitals, achieving a 41.3% FCP and 36.8% LCP boost
  • Personally communicated with the customer to specify UI requirements and deliver timely features

My skills

Front-End: Vue.js 2&3, Nuxt.js 2&3, JavaScript, ES6+, Typescript, HTML, CSS, SASS, SCSS, BEM, RWD, Tail-wind CSS, Vuetify, Quasar, Vue Router, Vuex, Pinia, Vuelidate, VueUse

Back-End: PHP, Node.js, Nest.js, Laravel, REST API, GraphQL, Swagger

Testing: Cypress, Jest, PHPUnit

Other: SSR, CSR, Eslint, Prettier, Webpack, Vite, Git, OOP, FP, SOLID, DRY, Figma

More detailed information:

HTML & CSS (SCSS, Tailwind)
90
%
JavaScript & TypeScript
90
%
Vue.js & Nuxt.js
95
%
Testing & QA (Cypress / Jest)
80
%
Backend (Nest & Laravel)
70
%

FAQ

Still have questions? Email Me

What services do you offer as a front-end developer?
I specialize in building fast, responsive websites and web apps using Vue.js, Nuxt.js, and TypeScript, with a focus on optimized UIs, reusable components, and top-notch performance—like boosting FCP by 41% or LCP by 36%. I also handle testing with Jest for reliability and can dip into back-end work with Node.js or PHP when needed.
How do you ensure a website performs well?
I boost website performance by tackling both SEO and loading speed. For SEO, I’ve lifted scores by 34% — fixing missing sitemaps, tweaking meta tags, and adding JSON-LD to climb Google rankings and pull in more clients. On the loading side, I refactor code, optimize images and animations, use lazy loading for components, preload key assets, and cut unnecessary API calls—plus, I’ve added Vue virtual scrolling for smooth handling of big data lists, making sites fast and user-friendly.
What’s your approach to working with clients?
I start by chatting directly with you to nail down your needs and design specs, then deliver interactive, user-friendly solutions on time — think adaptive layouts crafted with UI/UX designers or custom features. It’s all about collaboration and results.
Why should I choose you for my project?
With 5+ years of experience, I deliver pragmatic engineering: modular component systems, strong test coverage, and maintainable architecture. I’ve mentored peers, implemented PR checklists and review SLAs (reducing critical production bugs by ~50%), and shipped performance improvements that sped up sites and improved client outcomes — let’s make yours next.