Hi, I’m Kareem.

I build full-stack products, polished interfaces, and modern web applications

View my workGet in touch

Selected work

A selection of web applications, business tools, and integrations I’ve built.

Zonpro dashboard with a map of lead locations, filters, and a lead row with blurred contact details.

Zonpro

A platform for collecting leads from Meta advertising and selling them to businesses online. I built the application and integrated the Meta API to bring incoming leads into its workflows.

Visit website — Zonpro
Project details — Zonpro

Lead collection and sales platform

Full-stack development & Meta API integration

A platform that collects leads from Meta advertising and makes them available for businesses to purchase online. I built the application and integrated the Meta API to bring incoming leads into the platform.

  • Integrated the Meta API for automated lead collection.
  • Built the application workflows for presenting and selling leads.
  • Connected incoming advertising leads to the platform’s data flow.
  • Meta API
  • Lead collection
  • Business workflows
BatterySwap operations dashboard with inventory navigation, summary cards, and a sales chart.

BatterySwap

An inventory and invoicing dashboard for everyday business operations. Connected to Google Merchant Center, Google Analytics, and Google Ads.

Visit website — BatterySwap
Project details — BatterySwap

Inventory and business operations

Web development & integrations

A business dashboard for managing inventory and handling invoices, with integrations for Google Merchant Center, Google Analytics, and Google Ads. The work covered the operational interface and connections to the business’s Google services.

  • Developed inventory management and invoicing functionality.
  • Integrated Google Merchant Center for product data workflows.
  • Connected Google Analytics and Google Ads services.
  • Inventory management
  • Invoicing
  • Google integrations
Luba’s Eyes Travel home page with an Istanbul photograph, tour browsing and access-code actions.

Luba’s Eyes Travel

A web application for self-guided tours of Istanbul. Travelers unlock tours with a code and use online or offline routing as they explore.

Visit application — Luba’s Eyes Travel
Project details — Luba’s Eyes Travel

Self-guided travel application

Web application development

A web application for self-guided tours of Istanbul. Travelers access their tours with a code and use routing features that support both online and offline use while exploring the city.

  • Built the tour interface and access-code workflow.
  • Implemented online and offline routing functionality.
  • Connected tour content with the map experience.
  • Interactive maps
  • Offline routing
  • Access codes
Alpha Limit product page with lightning protection equipment, technical specifications, and quantity selectors.

Alpha Limit

A product website supported by supplier data collection tools. I built the site and the extraction tools used to gather information for its catalog.

Visit website — Alpha Limit
Project details — Alpha Limit

Product website and supplier data

Web development & data extraction

A product website supported by tools for collecting product information from multiple supplier websites. I built the website and developed the extraction work used to gather data for its product catalog.

  • Built the company’s product website.
  • Developed scraping tools for multiple supplier websites.
  • Collected product information for use in the catalog.
  • Product catalogs
  • Web scraping
  • Data collection
MicroFlow invoice upload area with conversion controls and a data preview.

MicroFlow

Invoice processing that turns documents into structured, editable data. Configure fields, review extracted values, and keep results linked to source files.

Project details — MicroFlow

Invoice processing software

Product development

An invoice processing application that turns invoice documents into structured, editable data. Users can configure the fields they need, review extracted values, and keep the results connected to their source files.

  • Built the document upload, extraction, and review workflow.
  • Added configurable fields and editable extraction results.
  • Implemented file storage, source-file links, and a credit system with Stripe integration.
  • Document processing
  • Editable data
  • Stripe integration

Introduction

Practical software, from interface to integration.

I’m a full-stack developer with 4+ years of experience building web applications, business tools, and integrations. I turn requirements into working products and help improve the systems already in use.

My work spans web interfaces, backend services, and the integrations that connect them. I’ve built inventory and invoicing tools, travel applications, lead platforms, and document processing software. I also work on existing products, improving performance and making complex code easier to maintain.

Web applications

Interfaces and application workflows built around real business requirements.

Backend & integrations

APIs, business logic, and connections between the services a product depends on.

AI & automation

Document processing, data collection, and automation for repetitive tasks.

Frontend performance

Refactoring complex interfaces, reducing unnecessary rendering, and improving maintainability.

Experience

Vybers

Senior Frontend Engineer

2026

Led frontend work on an AI simulation platform with agents moving through city maps.

  • Refactored a large map interface component to reduce excessive rerendering and improve maintainability.
  • Worked with backend engineers on API integration and the interface between application layers.
Role details — Vybers

Led frontend work on an AI simulation platform with agents moving through city maps. Worked on complex interactive interfaces, rendering performance, and coordination between frontend and backend systems.

  • Built a map prototype with extruded buildings, moving targets, and camera following to explore alternatives to the existing 3D map setup.
  • Frontend leadership
  • Performance
  • Interactive maps

Logica Studious LLC

Full Stack Developer

2024 - Present

Contributing as a full stack developer on production-ready web solutions, balancing frontend experience work with practical backend implementation.

  • Build and maintain full-stack features with an emphasis on reliability and usability.
  • Support client-facing products and internal improvements as part of an active delivery team.
Role details — Logica Studious LLC
  • Translate business needs into clean interfaces and dependable application logic.

Independent / Direct clients & freelance platforms

Freelance Full-Stack Developer

Delivered web applications and business tools for clients, covering frontend interfaces, backend functionality, and integrations.

  • Turned client requirements into application interfaces and working business workflows.
  • Integrated external APIs and developed tools for data collection and automation.
Role details — Independent / Direct clients & freelance platforms

Delivered web applications and business tools for clients, covering frontend interfaces, backend functionality, and integrations. Projects include inventory and invoicing systems, lead platforms, product data collection, and self-guided travel applications.

  • Built and maintained features across the frontend and backend of client projects.
  • Full-stack development
  • API integrations
  • Automation

Mostaql & Direct Clients

Freelance Developer

Ongoing

Still active on Mostaql and with direct clients, taking on focused web projects that need clear communication and dependable execution.

  • Deliver scoped websites, redesigns, and feature work for independent clients.
  • Keep communication direct and practical from the first brief to final handoff.
Role details — Mostaql & Direct Clients
  • Use platform and freelance work to stay close to real client needs and fast feedback loops.

Technologies

Frontend

  • React
  • Next.js
  • TypeScript
  • Tailwind CSS
  • React Native

Backend and data

  • Node.js
  • NestJS
  • PostgreSQL
  • Prisma
  • MongoDB

Integrations and automation

  • APIs
  • Webhooks
  • OpenAI API
  • n8n
  • Make

What Others Say

Testimonials

“

Understanding, distinguished, and committed to making adjustments until the work suits you perfectly. I appreciate him, and our work together is still ongoing and certainly will not be the last project.

AA

Abdarhman A.

Client review

“

Really good communication, and super well in problem solving.

OK

Oussama K.

Client review

“

The full project was completed successfully with seriousness and honesty. He solves every issue and request, delivers his work in the best possible way, and handles communication professionally. I strongly recommend working with this developer, and I hope to work with him on all my future projects.

AA

Ahmad A.

Client review

Get in touch

Have a project in mind?

Tell me what you’re building, what needs improving, or where you’re stuck.

Direct contact

If you want the fastest way to reach me, use email for project details or open WhatsApp for a quick conversation.

Email

alkarim1310@gmail.com

For direct project inquiries and faster written communication.

WhatsApp

+905528643473

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