Oleksii

O L E K S I I Z A M S H Y N
Hi, my name is Oleksii Zamshyn. I'm Front-End Developer with
expertise in HTML, CSS, JavaScript, TypeScript and modern
frameworks like React.js/Next.js. Dedicated to building responsive,
user-friendly, and high-performance web applications with clean,
maintainable code. Strong eye for design and usability, ensuring
seamless and engaging user experiences. Constantly learning new
technologies and best practices to stay ahead in the ever-evolving
web development landscape.

EXPERIENCE

C O NTACT
Frontend Engineer - Metric Insights, Inc.
December 2022 - May 2025
Korablyov Avenue 2,
 Mykolaiv
Building complex applications for specific needs of major business
[відкрити контакти](див. вище в блоці «контактна інформація»)
 companies using React.js/Next.js, TypeScript, JQuery and modern CSS
frameworks. Spearheaded performance optimizations, reducing load
[відкрити контакти](див. вище в блоці «контактна інформація»)
 times lazy loading, SSR, and bundle analysis. Designed and maintained
reusable component libraries and design systems in collaboration with UX
Telegram:
 https://t.me/OleksiiZamshyn teams and project main architect. Established coding standards, CI/CD
pipelines, and testing practices. Collaborated with stakeholders to align
technical solutions with business goals and scalability needs.

SKILLS

HTML5
Frontend Engineer - GlobalLogic
January 2021 - December 2022
CSS3/SCSS

Built scalable SPAs (Single-Page Applications), streaming services and
JavaScript native apps using React.js/Lightning.js/Wordpress with state
management. Optimized web performance through code splitting, lazy
TypeScript
loading, and efficient asset delivery. Worked closely with back-end
developers to integrate REST/GraphQL APIs and ensure seamless data
React.js
flow. Improved accessibility (WCAG) and SEO best practices in front-end
development. Mentored junior developers and contributed to UI
Next.js
component libraries for design consistency.

LightningJS

Redux Frontend Web Developer - GeeksForLess Inc.
March 2018 - January 2021

Zustand
Developed responsive and interactive web pages using HTML, CSS, and
JavaScript. Assisted in building UI components with React.js and
Jest
integrated RESTful APIs for dynamic content. Collaborated with designers
to implement pixel-perfect layouts from Figma/Adobe Photoshop
Tailwind css
mockups. Performed debugging, testing, and cross-browser compatibility
fixes. Participated in code reviews and adopted best practices for clean,
Material UI
maintainable code.

Bootstrap
E D U C AT I O N
JQuery

Master of Science - MS, Jurisprudence
PHP
2005 - 2010, National Academy of Internal Affairs of Ukraine
Wordpress

MySQL PORTFOLIO:

GraphQL  landroverdiplomatic.com
 iHeartRadio TV
Node.js
 amc.com
RESTful APIs  amcnetworks.com
 resumewritinglab.com
Webpack
 paydaysay.com
Vite  sparklers.us
 amcplus.com
Git (Important! Available for USA region only, may need according VPN connection to access)

 shudder.com
XML (Important! Available for USA region only, may need according VPN connection to access)

 sundancetv.com
Figma (Important! Available for USA region only, may need according VPN connection to access)

 allblk.tv
(Important! Available for USA region only, may need according VPN connection to access)
Adobe Photoshop
 acorn.tv
(Important! Available for USA and UK regions only, may need according VPN connection to
access)