Mustafa Dalga

Frontend Performance & Modernization Specialist

I fix slow, messy codebases and make them fast, clean, and maintainable

7+

Years Experience

80%

Load Time Reduction

70%

Performance Boost

View Services

About Me

With 7+ years of experience, I specialize in application performance and modernization. I have a proven track record migrating legacy systems and delivering measurable performance gains, including reducing page load times by 80% and improving Lighthouse scores from 50 to 88.

Experienced in technical mentorship, architectural design, and modern frameworks including React/Next.js, Vue/Nuxt.js, and TypeScript.

Technical Expertise

Vue.jsReact.jsNext.jsTypeScriptJavaScriptHTML5SCSSCSS3Tailwind CSSVuexPiniaRedux ToolkitZustandVitestTesting Library

Services & Expertise

Specialized consulting services focused on delivering measurable results and optimal performance

โšก

Performance Rescue Audit

โ‚ฌ150

Full performance analysis with actionable fixes

Lighthouse & Core Web Vitals report
Bundle size analysis
10-15 prioritized fixes
Estimated impact for each fix

Timeline: 2-3 days

๐Ÿš€

Speed Boost Package

โ‚ฌ400

Apply performance fixes and optimize your application

30-50% faster page load
Lighthouse score improvement (50โ†’75+)
Remove render-blocking resources
Image and font optimization

Timeline: 3-7 days (varies by project)

๐Ÿงน

Codebase Cleanup & Modernization

โ‚ฌ600+

Clean up messy code and modernize your tech stack

Remove unused dependencies
Replace outdated libraries
Component refactoring
Set up ESLint + Prettier

Timeline: Estimate after audit

๐Ÿ”„

Migration & Stabilization

โ‚ฌ800+

Migrate to modern frameworks and stabilize production

Vue 2 โ†’ Vue 3 migration
React โ†’ Next.js migration
Fix SSR/hydration errors
Production stabilization

Timeline: Estimate after audit

๐Ÿ”ง

Custom One-Off Fixes

โ‚ฌ20/hour

Quick fixes for specific issues

Debug specific errors
Fix responsive layouts
Implement accessibility features
Add SEO meta tags

Timeline: Flexible

Need help with a slow or messy codebase? Email me with your website URL and the main issue you're facing.

Get in Touch

Real Results

Proven track record of delivering measurable performance improvements

Full-Stack Optimization

U.S. Online Marketplace Platform

Challenge

Three interconnected applications (Admin, Seller, Buyer) with performance issues, code quality problems, and slow load times

Actions

Comprehensive performance audit across all 3 platforms
Moved scoped CSS from global to component-level
Optimized Font Awesome and removed render-blocking resources
Fixed SSR/hydration errors
Dependency cleanup and modernization
Implemented lazy loading and code splitting

Results

Lighthouse score: 50 โ†’ 88 (76% improvement)

30%+ bundle size reduction

Removed 10+ unused dependencies

Fixed 50+ code quality issues

Stabilized production environment

SaaS Platform Modernization & Performance

heybooster.ai

09/2020 - 01/2025

Challenge

Legacy codebase with performance issues, lack of testing infrastructure, and inconsistent code quality across multiple projects

Actions

Led Vue 2 โ†’ Vue 3 and Next.js migrations across multiple projects
Implemented standardized development tools (ESLint, Prettier, EditorConfig, Husky)
Set up comprehensive testing with Vitest, Testing Library, and Vue Test Utils
Integrated Sentry for proactive error monitoring
Implemented CI/CD pipelines with AWS Amplify
Established code documentation with Vitepress and TSDoc
Led front-end team and mentored junior developers
Implemented mobile-first responsive design principles

Results

70% web performance improvement

25-50% performance gains from migrations

Established unit testing and E2E automation

Improved code quality and team efficiency

Streamlined deployment workflows with CI/CD

Featured Projects

Open-source projects showcasing expertise in game development, developer tools, and web applications

Game Development๐ŸŽฎ

Othello - Realtime 2 Player Mind Game

Real-time multiplayer strategy game with GraphQL subscriptions and WebSocket communication

Next.jsExpress.jsGraphQLApollo ClientApollo Server
View on GitHub
Game Development๐ŸŽฒ

Realtime 2 Player Mangala Mind Game

Traditional Turkish board game with real-time multiplayer functionality using Firebase

Next.jsFirebaseReal-time DatabaseTypeScript
View on GitHub
Game Development๐Ÿ™๏ธ

SkyScraper Mind Game

Logic puzzle game that challenges players to strategically place buildings

Vue.jsTypeScriptAlgorithm Design
View on GitHub
Developer Tools๐Ÿ’ผ

CV Terminal Builder

Interactive terminal-style CV builder with modern UI/UX

ReactTypeScriptTerminal UI
View on GitHub
Education๐Ÿงฉ

Educational ABC Logic Puzzle

Educational puzzle game designed to enhance logical thinking skills

Vue.jsGame LogicEducational Design
View on GitHub
Game Development๐Ÿ”บ

Pyramid Mind Game

Mathematical puzzle game with engaging gameplay mechanics

JavaScriptGame Algorithms
View on GitHub
Media๐ŸŽต

Music Player

Modern music player with elegant UI and smooth playback controls

ReactWeb Audio APICSS Animations
View on GitHub
Developer Toolsโš™๏ธ

Vite Plugin - React Remove Attributes

Production-ready Vite plugin to remove test attributes from React builds

VitePlugin DevelopmentAST
View on GitHub
Developer Tools๐Ÿ”ง

Vite Plugin - Vue Remove Attributes

Vite plugin for removing development attributes from Vue.js production builds

ViteVue.jsBuild Optimization
View on GitHub
Game Development๐ŸŽฏ

Tactix - Real Time Intelligence Game

Strategic real-time multiplayer game with advanced game theory

Vue.jsWebSocketGame Theory
View on GitHub
Game Development๐Ÿ”ด

Realtime 2 Player Connection Mind Game

Connect-four style game with real-time multiplayer features

Next.jsWebSocketGame State Management
View on GitHub
Game DevelopmentโœŠ

Rock Paper Scissors Bet Game

Classic game with betting mechanics and smooth animations

ReactGame MechanicsAnimations
View on GitHub
Developer Tools๐Ÿ’ฌ

Tooltip Generator

Utility tool for generating customizable tooltips with various styles

JavaScriptCSSComponent Library
View on GitHub
Enterprise๐Ÿ–ฅ๏ธ

Computer Lab Automation

Management system for computer lab operations and resource allocation

PHPMySQLSystem Design
View on GitHub

Let's Connect

Have a project in mind or want to discuss performance optimization? I'd love to hear from you!

Based in

๐Ÿ“ Tallinn, Estonia

Available for remote consulting worldwide