Available for freelance projects & product builds

ADAR KATZIR

Full-Stack Developer building real products. From idea to production.

I build production-ready web platforms, mobile apps, dashboards, payment flows, admin systems and business tools that solve real problems.

Full-StackBusiness PlatformsMobile AppsPaymentsAdmin Panels

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portfolio.dev

Production Systems

Web · Mobile · Backend

Real product builds

Web

React / Next.js / Node

Mobile

SwiftUI / Compose

Business-first development

Not just clean code — products that can actually be used, sold and maintained.

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Selected Work

Projects that solve real business problems.

A mix of production platforms, client work, mobile interfaces and product-focused systems.

Core projects

Production2025

Mendel Toast

Food ordering platform

A production ordering platform built for an active food business, helping customers place direct orders through a custom website instead of relying only on phone calls or third-party platforms.

Problem

The business needed a direct digital ordering channel that could support real customers, delivery logic, product customization and day-to-day operations.

Solution

Built a full ordering system with cart flow, product customization, delivery zones, checkout, payment handling, analytics tracking and admin-controlled business settings.

Highlights

Production website with real orders

Delivery zones and order type logic

Cash and credit card checkout flow

Admin-controlled opening/closing settings

UTM and analytics tracking

Stack

ReactNode.jsExpressMongoDBVercelRender

Live

In Development2026

Sabres

Community platform for Israelis in the US

A community platform being built with partners for Israelis in the United States, bringing together WhatsApp groups, professionals, job opportunities and useful local information in one organized place.

Problem

Israeli communities in the US often rely on scattered WhatsApp groups, Facebook posts, personal recommendations and disconnected local resources.

Solution

Building a centralized platform that organizes community resources into clear categories, making it easier to discover groups, services, jobs and practical information by location and need.

Highlights

Community-focused platform

WhatsApp group directory

Professional service directory

Job board for Israeli communities

Practical local information hub

Stack

Next.jsReactTypeScriptTailwindNode.jsMongoDB

In Development2026

סוף מעשר במחשבה תחילה

Nonprofit application

An application built for the nonprofit organization סוף מעשר במחשבה תחילה, focused on creating a clear digital experience for donations, user interaction and operational management.

Problem

The organization needed a dedicated digital product that could support its activity, make donation-related interactions easier and provide a stronger operational foundation.

Solution

Designed and developed the foundation for a practical nonprofit application with clean user flows, management capabilities and a structure that can grow with the organization.

Highlights

Application built for a nonprofit organization

Donation-related user flow

Operational management foundation

Clean and practical user experience

Built for real organizational use

Stack

ReactNode.jsMongoDBPaymentsAdmin Dashboard

Completed2025

Coolz

Mobile app contribution as part of a team

Contributed to a mobile app for freezer monitoring and control as part of a development team, focusing mainly on UI implementation, screen translation and responsive mobile layouts.

Problem

The app required clear mobile interfaces for device status, temperature data, control actions and operational screens across different device sizes.

Solution

Helped implement and translate complex mobile screens and reusable UI components, with attention to responsive layout behavior, visual hierarchy and dark mode support.

Highlights

Contributed as part of a development team

Worked on SwiftUI and Jetpack Compose screens

Implemented reusable mobile UI components

Handled responsive layout behavior

Worked on dark mode and visual consistency

Stack

SwiftUIJetpack ComposeKotlinMobile UIDark Mode

Capabilities

The stack behind the products.

A practical skill set focused on building, launching and maintaining real software products.

Active stack

Frontend

Building clean, responsive and production-ready interfaces with strong attention to user experience.

React

Next.js

TypeScript

Tailwind CSS

Responsive UI

About

I build software with product thinking.

My focus is not only writing code — it is understanding the business need, shaping the right product flow and building something that can actually be used, launched and maintained.

I am ADAR KATZIR, a full-stack developer with a degree in Software Engineering, focused on practical web platforms, business systems, admin dashboards and mobile interfaces. I enjoy taking ideas that start messy or unclear and turning them into structured, usable products.

Business-first mindset

I care about the real goal behind the feature — orders, users, operations, conversions or internal efficiency.

End-to-end delivery

From frontend and backend to databases, deployment, payments and production debugging.

Real product experience

I have worked on active business platforms, client products, mobile interfaces and systems built for real users.

How I work

Understand the business need before touching code

Build clean flows that users can actually complete

Keep the system maintainable and practical

Move fast without losing control of the product

Contact

Have a product idea or a system that needs to be built?

I am open to freelance projects, product builds, business systems, web platforms and practical software work.

Available for selected projects

Let’s build something useful.

adarkatzir@gmail.com

Connect with me

GitHub

View code & projects

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