Frontend engineer building production-ready web applications at scale

TypeScript, React, and Next.js - shipping real products from prototype to thousands of users with performance, reliability, and maintainability in mind.

Production React & Next.js·Sub-2s load times·40%+ automation gains
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About Me

Viktor Stoimenovski - Frontend Engineer

Frontend Engineer | Web Developer | UI/UX Designer

I'm a Frontend Engineer with 4 years of coding experience (1 year professional) building production-ready applications primarily with React.js, Next.js, and TypeScript. I ship live products serving real customers, write maintainable code with unit and E2E tests (Playwright), and optimize for performance achieving sub-2s load times.

My work includes production CRMs, ecommerce platforms, and SaaS applications. I integrate AI automation (n8n) to reduce manual work, contribute to open-source (Bagisto ecommerce), and design scalable architectures. With cloud experience in Supabase, AWS (university) and Azure (AZ-204 academy), I build full-stack solutions that scale.

I combine technical execution with product thinking - understanding business requirements, making architecture decisions, and delivering solutions that balance performance, maintainability, and user experience.

2025

Frontend Engineer at Happierleads

Developed and maintained Happierleads V2 and V3 using Next.js, React, TypeScript, and Redux, delivering production-grade applications that serve real customers. Built reusable UI components with Material UI, Ant Design, and SCSS to ensure consistent design systems and accelerate feature development. Improved frontend performance through strategic state refactoring and lazy loading techniques, resulting in faster load times and enhanced user experience. Collaborated closely with backend engineers and designers to refine UX flows and ensure seamless integration across the product. Integrated REST APIs across core product features, enabling robust data flow and real-time functionality throughout the application.

2025

Full Stack Developer

Designed and developed VenlynOS, a production-ready Progressive Web App (PWA) CRM platform specifically built for U.S. service-based businesses. Architected and implemented a scalable, type-safe frontend using Next.js, React, and TypeScript, ensuring maintainable code and optimal performance. Built responsive, mobile-first interfaces with Tailwind CSS that deliver seamless user experiences across all devices. Integrated Supabase for real-time database operations and authentication, enabling robust data synchronization and secure user management. Implemented advanced AI-powered voice assistant features using Vapi, transforming customer interactions through intelligent automation. Delivered a full-stack solution that combines modern web technologies with practical business value, demonstrating expertise in both frontend architecture and backend integration.

2023-2025

B.Sc Business & IT

IU International University of Applied Sciences. Comprehensive curriculum covering software engineering, cloud computing (AWS), database systems, business strategy, IT law, and data regulations. Completed Bachelor Thesis: "A Lightweight CRM Application for Urban Bars," demonstrating full-stack development capabilities and practical application of business and technical knowledge. Applied theoretical concepts to real-world projects throughout the degree, building a strong foundation in both technical execution and business acumen.

By The Numbers

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Projects Completed

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Technologies Mastered

0

Years Experience

0

Open Source Contributions

Capabilities & Craft

Scalable frontend systems built for real-world products

I design and implement frontend architectures that scale beyond a single page or feature. My focus is on maintainable component systems, predictable state management, and clean separation of concerns so products remain easy to evolve over time.

Focus Areas

  • Reusable component libraries and design systems
  • Modular architecture for complex UIs
  • Clear state boundaries and data flow

Tools

React
Next.js
TypeScript
Tailwind CSS
TanStack Query
Zustand

Related Projects

VenlynOS - AI-Powered CRM

Production PWA for US service businesses with AI voice assistant for automated bookings and client management. Live deployment serving real customers.

Related Project

Urban Bar CRM

Production CRM system for urban bars with customer management, bookings, and analytics. Live deployment with real business data.

Related Project

News & Blog Platform

Modern web application combining real-time news updates with personal blog management. Live deployment with API integration.

Related Project

These capabilities come together in the projects below, where design, engineering, and performance meet real-world constraints.

My Work

A curated collection of projects that tell the story of my journey in frontend development

Live Projects

3 projects
VenlynOS - AI-Powered CRM

Production PWA for US service businesses with AI voice assistant for automated bookings and client management. Click to get credentials.

TypeScriptPostgreSQLPWA

VenlynOS - AI-Powered CRM

Production PWA for US service businesses with AI voice assistant for automated bookings and client management. Click to get credentials.

Kota Tim Sekjuriti

Professional security services website for Kota Tim Sekjuriti. Modern, trustworthy design showcasing security solutions and services.

Next.jsTypeScriptReact

Kota Tim Sekjuriti

Professional security services website for Kota Tim Sekjuriti. Modern, trustworthy design showcasing security solutions and services.

BeefingBot - Crypto Token Platform

Modern cryptocurrency token platform website for BeefingBot. Showcasing tokenomics, roadmap, and community features with engaging design.

Next.jsTypeScriptReact

BeefingBot - Crypto Token Platform

Modern cryptocurrency token platform website for BeefingBot. Showcasing tokenomics, roadmap, and community features with engaging design.

Web Applications

3 projects
Urban Bar CRM

Production CRM system for urban bars with customer management, bookings, and analytics. Click to get credentials.

Next.js 14TypeScriptSupabase

Urban Bar CRM

Production CRM system for urban bars with customer management, bookings, and analytics. Click to get credentials.

News & Blog Platform

Modern web application combining real-time news updates with personal blog management. Live deployment with API integration.

React 19Vite 6CSS3

News & Blog Platform

Modern web application combining real-time news updates with personal blog management. Live deployment with API integration.

Converso - AI Learning Platform

Production SaaS platform for creating AI-powered learning companions through voice conversations. Live deployment with user management.

Next.js 15TypeScriptVapi AI

Converso - AI Learning Platform

Production SaaS platform for creating AI-powered learning companions through voice conversations. Live deployment with user management.

Physiotherapist Business Planner

CRM and business management platform specifically designed for physiotherapy practices. Manage clients, appointments, and business operations.

Next.jsTypeScriptReact

Physiotherapist Business Planner

CRM and business management platform specifically designed for physiotherapy practices. Manage clients, appointments, and business operations.

Landing Pages

5 projects
AI Marketing Landing Page

Modern landing page for AI marketing platform with animated hero section.

Next.jsTypeScriptGSAP

AI Marketing Landing Page

Modern landing page for AI marketing platform with animated hero section.

Creative Agency Landing

Bold, editorial landing page for creative agency.

Next.jsTypeScriptGSAP

Creative Agency Landing

Bold, editorial landing page for creative agency.

CRM Landing Page

Professional landing page for CRM solution.

Next.jsTypeScript

CRM Landing Page

Professional landing page for CRM solution.

Fintech Landing Page

Trust-focused landing page for fintech company.

Next.jsTypeScript

Fintech Landing Page

Trust-focused landing page for fintech company.

Fitness Landing Page

Motivational landing page for fitness app.

Next.jsTypeScript

Fitness Landing Page

Motivational landing page for fitness app.

Ecommerce Stores

5 projects
Modern Fashion Store

D2C fashion brand with full shopping experience.

Next.js 15TypeScriptZustand

Modern Fashion Store

D2C fashion brand with full shopping experience.

Tech Gadgets Store

Modern electronics ecommerce store.

Next.js 15TypeScriptZustand

Tech Gadgets Store

Modern electronics ecommerce store.

Beauty & Skincare

Soft, trustworthy beauty brand store.

Next.js 15TypeScriptZustand

Beauty & Skincare

Soft, trustworthy beauty brand store.

Fitness Sports Store

Energetic sports equipment store.

Next.js 15TypeScriptZustand

Fitness Sports Store

Energetic sports equipment store.

Digital Products

Clean digital products and subscriptions store.

Next.js 15TypeScriptZustand

Digital Products

Clean digital products and subscriptions store.

Full Websites

5 projects
myportfolio-sygw.vercel.app
B2B SaaS Platform

Complete CRM and automation platform with multiple pages.

Next.js 15TypeScriptGSAP

B2B SaaS Platform

Complete CRM and automation platform with multiple pages.

myportfolio-e4cw.vercel.app
AI Marketing Platform

Innovative AI marketing platform with dark theme.

Next.js 15TypeScriptGSAP

AI Marketing Platform

Innovative AI marketing platform with dark theme.

myportfolio-el3o.vercel.app
Fintech Payments

Secure fintech platform with conservative design.

Next.js 15TypeScript

Fintech Payments

Secure fintech platform with conservative design.

myportfolio-gf7d.vercel.app
Creative Agency

Bold creative agency website with editorial layout.

Next.js 15TypeScriptGSAP

Creative Agency

Bold creative agency website with editorial layout.

myportfolio-gucv.vercel.app
Health & Fitness App

Friendly health and fitness app website.

Next.js 15TypeScriptGSAP

Health & Fitness App

Friendly health and fitness app website.

Get In Touch

Have a project in mind? Feel free to reach out. I'm always open to discuss new opportunities and collaborations.

Send a message