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Ruslan Cherniavsky

Ruslan Cherniavsky

Engineer who builds products end-to-end with AI and ships real businesses

Tel Aviv, Israel

I don’t just build UIs — I build products that ship.

3+ years building production systems — from complex booking flows to full-scale platforms used in real-world environments with complex user flows and high reliability.

View projectsWork with me

Core skills

Stack at a glance

  • React
  • TypeScript
  • Node.js
  • REST APIs
  • System Design
  • Scalable Architecture
  • Firebase
  • Accessibility
  • AI-powered Development

Selected work

Lynqfy and Spheres — founder-led products, same bar as client work.

Lynqfy

Live

Founder & Product Engineer · Jan 2025 — present

Creator-focused digital storefront

Creator storefront with Stripe Connect: instant delivery, subscriptions, and a landing-page builder — multi-tenant SaaS.

  • React
  • Firebase
  • Stripe Connect
  • SendGrid
  • Multi-tenant

Outcome · Built and shipped a full product end-to-end — from UX and architecture to payments and infrastructure.

Visit live →Architecture

Spheres

Live

Founder & Product Engineer · In development

Real-time 3D social space

Real-time 3D environment with synchronized users, spatial interaction, and minimal server footprint.

  • React
  • Three.js
  • WebSockets
  • Firebase

Outcome · Solved real-time synchronization and positioning without heavy backend infrastructure.

Visit live →Architecture

Capabilities

What the CV summarizes — grouped, not buzzword-stacked.

  • Frontend Systems

    • Building scalable UI systems with predictable state and clean architecture.
    • Handling complex flows, reusable components, and real-world integrations.

  • Backend & APIs

    • Designing and working with REST APIs and backend flows using Node.js and Firebase.
    • Handling data, payments, and system logic in production environments.

  • AI-driven Development

    • Using AI (Cursor, Claude) to design architecture, accelerate development, and ship faster.
    • Building full products end-to-end with AI-assisted workflows.

  • Product & Ownership

    • Taking ideas from concept to production — including UX, architecture, and infrastructure.
    • Focused on real users, reliability, and shipping complete systems.

Philosophy

I don’t build features — I design systems that hold under real use.

Simplicity is intentional — complexity is managed, not exposed.

AI is leverage — used to move faster, not to replace thinking.

Experience

Employment path — condensed, aligned with the CV.

Q-nomy · Tel Aviv

May 2024 — Present

Frontend Developer

  • Built complex booking and scheduling systems (Online Booking, Agent Console) using React, TypeScript, and Redux.
  • Designed reusable UI and state architecture for dense, real-time flows with REST-backed data.
  • Improved accessibility (ARIA, keyboard flows, semantics) aligned with production constraints and UX.
  • Leveraged AI tools (Cursor) to accelerate development while maintaining code quality.

Rail Vision · Ra'anana

Apr 2023 — Jan 2024

Frontend Developer

  • Developed internal React systems for hardware and AI data analysis.
  • Built dashboards and integrated Node.js REST APIs with MySQL and MongoDB.
  • Worked in a startup environment focused on computer vision systems.

Rail Vision · Ra'anana

Mar 2021 — Jan 2023

3D Simulations Developer

  • Built synthetic 3D datasets for computer vision using Blender, Python, and JavaScript.
  • Designed scalable generation pipelines integrated into ML workflows.
  • Improved model accuracy through high-quality synthetic data.

Education

John Bryce · Tel Aviv

Professional Certificate in Full-Stack Web Development · 2021 — 2022

Focused on JavaScript, React, and backend fundamentals.

Contact

Direct lines.