Alexandr Semizbayev

Front End Engineer

I’m passionate about building web apps that are not just functional, but fast, beautiful, and user-friendly.
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👋 Hello!

I’m Alex, a Frontend Engineer based in Redmond, WA, originally from Kazakhstan 🇰🇿. I’ve worked with startups, food delivery service (local alternative to Doordash), government portals,and working on my own platform. Whether I’m scaling a food delivery platform to handle thousands of real-time transactions or optimizing performance with Docker and nginx, I’m always driven by clean design, great UX, and performant code. Outside of tech, you’ll probably find me wrenching under the hood of a car — I love all things mechanical.
SEP 2023  -  PRESENT

Frontend Software Engineer (Contract) Big Black Box

Remote from Seattle, WA

Frontend engineering for a retail grocery chain platform (similar to Safeway/QFC). - Developed user interfaces for high-traffic product catalog and checkout systems using Vue, React, and TypeScript. - Owned core product domains end-to-end, leading architectural decisions, implementation strategy, and production delivery. - Resolved complex performance and build pipeline bottlenecks, improving load times and system efficiency under high-load conditions. - Authored and maintained comprehensive technical documentation to ensure knowledge continuity and cross-team alignment.

Vue.js v2
Vue.js v3
React
TypeScript
JavaScript
Nuxt.js
CSS
SCSS
TailwindCSS
Vuetify
Docker
NGINX
GitLab CI/CD
MAR  -  SEP 2023

Senior Frontend Engineer Big Black Box

Almaty, Kazakhstan

Procurement portal for a government organization. - Developed a comprehensive web application for managing and editing extensive product catalogs, - Implemented robust security features including Keycloak-based authentication and error tracking with Sentry. - Optimized performance with nginx proxy and gzip compression.

Vue.js v2
Vue.js v3
React
TypeScript
JavaScript
Nuxt.js
CSS
SCSS
TailwindCSS
Vuetify
Docker
NGINX
GitLab CI/CD
JULY 2020  -  MAR 2023

Senior Frontend Software Engineer Choco Holding

Almaty, Kazakhstan

Chocofood is a food delivery service in Kazakhstan. - Started as a Junior Engineer and advanced to a Senior role leading and mentoring a team of 4 developers and interns. - Developed a scalable payment gateway, which led to reduction in transaction processing times by 22%. - Launched a flexible webview platform with authentication, secure transactions, and real-time data exchange through web sockets, while supporting multiple languages. This increased food order volume by 18% - Implemented content management, order processing and delivery tracking frontends. - Designed, implemented and standardized integration with partners: authentication, payments, location services. - Implemented real-time tracking of deliveries. - Implemented localization into multiple languages. - Implemented dark theme.

Vue.js v2
Vue.js v3
TypeScript
JavaScript
Nuxt.js
jQuery
CSS
SCSS
TailwindCSS
Vuetify
Docker
NGINX
GitLab CI/CD
NOV 2019  -  FEB 2020

Full-Stack Web Developer Intern at Orzu

Almaty, Kazakhstan

Orzu is a startup marketplace for hiring contractors. - Implemented UX and UI for the home page and customer profile pages. - Refactored a spaghetti-coded backend into a modular, maintainable architecture, improving developer efficiency by 20%. - Introduced source control and replaced legacy FTP-based manual deployments with automated scripts, eliminating an entire class of deployment bugs and improving iteration speed by 50%.

JavaScript
PHP
HTML
CSS
SCSS
jQuery
MySQL
Git