Hi,
I'm Idan 👋
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Full-stack engineer turning complex business logic into clean, scalable systems.
IS

About

Full Stack Engineer with experience designing scalable systems at Singit (600K+ users), driving ~10% conversion growth and ~65% reduction in auth overhead.

I specialize in authentication, segmentation, and monetization infrastructure - building maintainable systems end-to-end, from backend APIs to polished frontend experiences. I leverage AI-assisted workflows (Cursor, Claude Code) to accelerate design and implementation.

Experience

Owned end-to-end architecture across authentication, segmentation, deep linking, and monetization systems for a language learning platform with 600K+ users.

  • Consolidated a fragmented user management system into a unified CRUD API - single source of truth eliminating inconsistent business logic and production edge cases.

  • Designed a Profiles & Segmentation architecture (freemium / trial / paying / B2B) formalizing user state transitions, feature gating, and access control across the platform.

  • Reduced authentication-related API calls during app initialization by ~65% by re-architecting the JWT authentication lifecycle, improving startup performance and lowering server load.

  • Drove ~10% increase in freemium-to-paid conversion rate by redesigning the payment flow - migrating from a static implementation to dynamic RevenueCat Paywalls with remote configuration and experimentation support.

  • Built a remote-triggered, localized UI system (modals, headers, custom HTML) configurable by country, device, and user profile - achieved ~10% phone-number capture rate among targeted users.

  • Engineered race-condition-safe deep link infrastructure integrated with remote UI configuration, enabling product teams to launch new experiences without app releases or backend deployments.

Tech stack:
React Native
TypeScript
Node.js
Express.js
RevenueCat
JWT

Education

GPA: 87

Notable Courses:

  • Data Structures, Computability, Complexity & Algorithms
  • Computer Architecture, Operating Systems
  • Advanced Programming in C, OOP and C++
  • Applications Development in Kubernetes
  • Java Application Development

GPA: 106

  • Selected for the Mofet program, an honors class for outstanding students
  • Mathematics, Physics, English - 5 points
  • Computers course of study - 10 points

Volunteering

Contributing to Yad4, a platform connecting people with animals in need of homes, by developing features across the full stack.

  • Building and optimizing frontend and backend features to improve usability for adopters and shelters
  • Refactoring and stabilizing an existing codebase for long-term maintainability
  • Collaborating with a team of developers to prioritize and ship impactful features

Skills

Frontend

React Native
React
Next.js
Angular
Expo
Tailwind CSS
CSS / SCSS

Backend

Node.js
Express.js
Spring Boot
REST APIs

Programming Languages

JavaScript
TypeScript
Java
Python
C
C++

Infrastructure

AWS
Docker
CI/CD
Kubernetes

Databases

PostgreSQL
MongoDB
SQL

Tools

Git
GitHub
GitLab
Bitbucket
Postman
VS Code

AI-Assisted Development

Cursor
Claude
Claude Code
ChatGPT
MCP Servers
AI Agents

Other

JWT
RevenueCat
Stripe
Projects

Things I've Built

Systems and apps I've designed and shipped end-to-end.

Movie Explorer

Movie Explorer

A modern movie discovery app with full keyboard navigation, Redux-Saga state management, and TMDB API integration. Features debounced search, favorites with localStorage persistence, dark/light mode, animated rating rings, and responsive design.

React
TypeScript
Redux Toolkit
Redux-Saga
Tailwind CSS
Vite
Framer Motion
Axios
Pilewatch Operator Dashboard

Pilewatch Operator Dashboard

A monitoring dashboard for grain storage operators to track sites, piles, live-style sensor readings, and open alerts in one place. Features sortable alert tables, pile status filtering, sensor detail views, and a light/dark/system theme with browser persistence.

React
TypeScript
Vite
Tailwind CSS
React Router
Sympoll

Sympoll

Designed and deployed containerized microservices on Kubernetes with automated CI/CD pipelines, focusing on scalability and service isolation. Built to address the challenge of conducting effective surveys in environments where group conversations disrupt the process.

Kubernetes
React
Vite
TypeScript
PostgreSQL
SCSS
Java
Maven
Spring Boot
Git
Asa Memorial

Asa Memorial

A voluntary freelance initiative honoring the life of Asa Gil-Ad, a fallen police officer, through an interactive website for sharing memories and photos. Features dynamic image albums, secure memory submissions, and admin approvals.

React
Express
Typescript
PostgreSQL
JWT
SCSS
Cloudinary API
Contact
Let's Work Together

Looking for a full-stack engineer who ships production systems at scale?