Open to opportunities

Hi, I'mMiki Vitkovski

Full Stack Software EngineerI build scalable SaaS platforms and AI driven systems, from architecture to production.

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Veles, North MacedoniaSofia, BulgariaLinkedInGitHub

About

Engineering products that scale

Full stack engineer with a Computer Science foundation, focused on SaaS platforms, AI automation, and production grade systems, from database design to polished interfaces.

5+

Years shipping code

5+

Production SaaS platforms

70→95

SEO uplift delivered

~40%

Load time improvement

Education

University St. Kliment Ohridski

Computer Science and Technology

Sep 2013 — May 2016

Strong foundation in software engineering, data structures, databases, and analytical problem solving.

Languages

  • EnglishFull Professional
  • MacedonianNative
  • SerbianNative / Bilingual
  • BulgarianLimited Working

Certifications

Full Stack Development

Udemy

React, Next.js, Node.js, PostgreSQL, JWT auth

Amazon Web Services (AWS)

Udemy

EC2, ECS, Lambda, S3, IAM, CI/CD

Artificial Intelligence, Fundamentals

Udemy

OpenAI integration, OCR pipelines, automation

Skills

Stack I ship with

Full stack breadth across modern and established ecosystems, from greenfield SaaS to legacy integrations, with production ownership end to end.

Frontend

Production UIs, design systems & performance

  • TypeScript
  • JavaScript
  • React
  • Next.js
  • Vue.js
  • Tailwind CSS
  • SSR & Performance
  • jQuery

Backend

APIs, validation & scalable services

  • Node.js
  • Nest.js
  • Express
  • PHP
  • Laravel
  • REST APIs
  • Zod
  • Swagger / OpenAPI

Data & Cloud

Databases, infra & deployment pipelines

  • PostgreSQL
  • MySQL
  • Supabase
  • AWS
  • Docker
  • Coolify
  • Vercel
  • CI/CD

Product & AI

SaaS delivery, billing & intelligent automation

  • SaaS Architecture
  • Multi tenant Systems
  • System Design
  • OpenAI
  • OCR Pipelines
  • Stripe
  • Paysera

Also proficient in

  • Redis
  • MFA / RBAC
  • Webhooks
  • Git & GitHub
  • Jira
  • Slack
  • Agile / Scrum
  • Cursor AI
  • GitHub Copilot

Experience

Where I have built

Remote first roles delivering SaaS, billing systems, and AI powered platforms for international teams.

Sep 2025 — Mar 2026

Full Stack Software Engineer

Bettersolutionsgroup

Skopje · Remote

  • Led delivery of a scalable multi tenant SaaS platform with Node.js, TypeScript, PostgreSQL, React, and Next.js
  • Designed REST APIs with Zod validation, structured error handling, and Swagger/OpenAPI documentation
  • Built document pipelines, secure uploads, OCR, AI extraction, automating PDF/Word templates and workflows
  • Implemented JWT, MFA, RBAC with tenant isolation; Paysera billing, webhooks, and usage based access control
  • Shipped role based admin dashboards; audit logging for compliance; deployed via Docker, AWS, Vercel, and Coolify with CI/CD
ReactNext.jsNode.jsTypeScriptExpress.jsPostgreSQLZodSwaggerPayseraAWSDockerVercelCoolifyAI Automation
May 2025 — Aug 2025

Full Stack Software Engineer

FastTelekom

Sweden · Remote

  • Built subscription and pricing systems with dynamic plans, role based logic, and flexible configuration
  • Integrated Stripe checkout, subscription management, and webhook driven updates
  • Developed responsive interfaces with JavaScript, PHP, HTML, and CSS, dynamic content and conditional UI states
  • Applied validation, error handling, and security practices; aligned pricing models with stakeholders
StripePHPJavaScriptHTML / CSSWebhooksREST APIs
Jun 2024 — Apr 2025

Full Stack Software Engineer

JZ France

France · Remote

  • Developed subscription and pricing features with dynamic plans, role based logic, and flexible configuration
  • Implemented multi language support with browser detection and dynamic content localization
  • Built Google Maps features, dynamic filtering, real time updates, and interactive location workflows
  • Optimized frontend and backend performance ~40% faster; SEO score improved from 70 to 95
  • Integrated OpenAI via REST/OpenAPI for translation and AI automation; refactored toward modular, scalable architecture
Next.jsReactTypeScriptOpenAIGoogle Maps APIAWSREST APIsSEOi18n
Feb 2024 — May 2024

Full Stack Software Engineer

Learnhub

North Macedonia · Remote

  • Integrated frontend with backend APIs; improved data flow, component architecture, and scalable UI systems
  • Designed reusable UI components and layout systems for consistency across production interfaces
  • Implemented Cloudflare Turnstile and frontend security for public facing forms
  • Applied SEO and performance optimizations, semantic HTML, metadata, and efficient rendering
  • Collaborated with designers and engineers in agile delivery, contributed to code reviews and release cycles
ReactTypeScriptREST APIsCloudflare TurnstileSEOPerformanceCode Review
May 2023 — Nov 2023

Full Stack Software Engineer

Private Client · Subscription Platform

Remote · Client project

  • Built a subscription & billing platform for a private client, plans, user access, and payment workflows end to end
  • Developed Node.js & Express APIs with validation, RBAC, and structured error handling
  • Implemented subscription lifecycle logic, plans, upgrades, access rules, and usage based features
  • Integrated Stripe checkout and webhook based state synchronization
  • Delivered React admin interfaces and modular architecture in an agile, stakeholder driven process
ReactNode.jsExpressStripeREST APIsRBAC
Oct 2022 — Present

Full Stack Developer

Freelance · Direct Clients

Remote

  • Designed and shipped SaaS and full stack products, architecture, multi tenant systems, concept to production
  • Built scalable frontends (React, Next.js) and backends (Node.js, Express, REST APIs, Zod)
  • Delivered auth (JWT, MFA), RBAC, AI document pipelines (OCR + OpenAI), and billing (Stripe, Paysera)
  • Deployed on Docker, AWS, and Vercel with performance, security, and production monitoring
  • Worked directly with clients on requirements, iterations, and production ready releases
ReactNext.jsNode.jsSaaSOpenAIStripeAWSDocker

Projects

Selected work

Production highlights from SaaS, e-commerce, and full stack products I've shipped.

Featured

Health Commerce SaaS

E-commerce · Multi tenant Platform

Feb 2026 — Present

Scalable full stack e-commerce platform for health and supplement products, multi tenant architecture, dynamic storefronts, and organization based billing.

  • →Secure REST APIs with JWT/cookie auth, MFA (TOTP), RBAC, and multi tenant organizations
  • →Storefront & admin dashboard, products, analytics, onboarding, billing, and notifications
  • →Dynamic page builder with 15+ sections: FAQs, testimonials, supplement facts, comparison tables
  • →GeoIP product analytics with privacy safe IP hashing and aggregated admin reporting
  • →OpenAI image/video generation, AWS S3 presigned uploads, catalog & package pricing
  • →Swagger/OpenAPI documentation; deployed on Vercel with Dockerized PostgreSQL for local dev
Next.jsReactNode.jsTypeScriptPostgreSQLAWS S3OpenAIStripeSwaggerVercelDocker
Featured

AccuraAI

SaaS · Invoice & Document Management

Aug 2025 — Apr 2026

Scalable multi tenant SaaS for invoice and document management, AI extraction, accounting automation, audit trails, and approval workflows.

  • →Secure auth with MFA, JWT, and RBAC for protected multi user, multi tenant access
  • →API driven architecture with Zod validation and Swagger/OpenAPI for reliable integrations
  • →AI powered extraction of invoice fields, date, number, VAT, base, and total amounts
  • →Automatic Excel autopopulation for accounting workflows, reducing manual entry and errors
  • →Audit logging for user actions, document processing, and system events
  • →Notification workflows for processing status, approvals, and exports, responsive UI with secure REST APIs
Next.jsReactNode.jsExpress.jsPostgreSQLOpenAIZodSwaggerREST APIs

Subscription & Billing Platform

SaaS · Payments

2024

Platform for subscription plans, user access, and billing, Stripe integration with webhook sync and admin dashboards.

  • →Subscription lifecycle: plans, upgrades, access rules
  • →Stripe checkout and webhook state synchronization
ReactNode.jsExpressStripe

Motorcycle Events App

Full Stack · CRUD

2022

CRUD application for managing persons and motorcycle events with filtering, validation, and structured MySQL data layer.

  • →REST API with Express and relational schema design
  • →Form validation and advanced filtering
Node.jsExpressMySQLReact

Event Registration System

Backend · Workshops

2023

Registration system with MySQL storage, admin views, and secure validation for small events and workshops.

  • →Administrative registration management
  • →Scalable structure for event workflows
PHPMySQLJavaScript

Custom Contact Form

Integration · Reusable

2023

Server side PHP contact form with spam protection, validation, and configurable fields, integration ready for multiple sites.

  • →Spam protection and secure submissions
  • →Reusable backend logic across projects
PHPHTMLCSS

Engineering

Metrics & delivery

Performance awareness, how this site and client projects are measured and shipped.

Lighthouse (this portfolio)
Performance96
Accessibility100
Best Practices100
SEO100
Bundle breakdown

  • First Load JS

    ~153 KB

    Next.js App Router, static prerender

  • Home route

    ~50 KB

    Page specific JS

  • Shared chunks

    ~102 KB

    React 19 + framework runtime

Caching & rendering

  • Rendering

    SSG + ISR ready

    Static generation for marketing pages

  • Caching

    Vercel Edge

    CDN + immutable static assets

  • Images

    Optimized

    next/image where applicable

  • Contact API

    Serverless

    SMTP via /api/contact route

Client project improvements

SEO score

70→95+

Client e-commerce storefront

Load time

baseline→~40% faster

SSR + asset optimization

Bundle discipline

monolith UI→route level splits

Next.js code splitting

Notes

Engineering notes

Short, technical write ups, how I think about React, performance, and SaaS architecture.

Currently building

Health Commerce SaaS

Multi tenant storefronts, dynamic page builder, and AI assisted catalog tooling.

Next.jsPostgreSQLStripeOpenAI

In active development

@Mikivitkovski · Production deployments · Documented architecture

Contact

Let me build something great

Open to full time roles, contract work, and interesting SaaS products. Reach out, I typically respond within 24 hours.

Direct contact

Send a message

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