Software Engineer / Full-stack · AI-native

Cem Bilen

I build web products from interface to backend: application logic, APIs and the data behind them. I work with AI throughout development, bringing software engineering, UX and conversion thinking into the same process.

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Selected Work

01 — 09
Surfel interface

In development

Surfel

Building the application and infrastructure behind an e-commerce product for AI agents.
Full-stackTypeScriptPostgreSQL
cxbilen.com interface

Live · Personal project

cxbilen.com

A portfolio and CV built with reusable React components and a shared theme system.
Next.jsReactFrontend
Dev Migration Assistant interface

Open source · macOS release v1.0.0

Dev Migration Assistant

An encrypted macOS backup tool for Git working state, local project files and AI coding context.
ElectronTypeScriptNode.js
PlayAgain interface

Web application · Personal project

PlayAgain

A browser gaming application that connects a TV or desktop screen with phones as controllers.
Next.jsWebRTCWebSockets
Looplift interface

Private beta

Looplift

An AI-assisted experimentation platform connecting storefront audits, variant generation and A/B testing.
Full-stackAI workflowsCRO
Maestro architecture: Next.js workspace, Bun worker, agent execution, PostgreSQL and Redis Streams

Engineering project · Private source

Maestro

A project workspace for agent execution, streamed output and reviewable engineering artifacts.
AI agentsBunPostgreSQL
SkyWise interface

Case study · Interactive prototype

SkyWise

A travel assistant case study that turns user journeys into an interactive Next.js prototype.
Next.jsTypeScriptProduct UX
LENZ interface

Live website · Personal project

LENZ

An AI virtual try-on application connecting a shopping interface with image generation and merchant APIs.
Full-stackGenerative AISupabase
ZEDrift city map asset showing streets and buildings from above

Game project · Private source

ZEDrift

A browser-based 3D driving game with procedural city generation and realtime multiplayer state.
Three.jsSocket.IONode.js

What I build

Frontend engineering

Responsive React and Next.js interfaces, reusable components and design systems. Clear interactions across loading, empty, error and success states.

Backend & integrations

Application logic, APIs, relational data models, authentication and access control. Connecting the interface to the services and data it depends on.

AI-native development

AI agents are part of how I explore, implement, debug and review. I define the requirements, evaluate technical choices and verify the result with tests and real usage flows.

UX & conversion

Experience in SaaS UX, funnel analysis and A/B testing helps me make engineering decisions around usability, product goals and measurable hypotheses.

Engineering with product context

Software engineer with a foundation in computer programming and databases. I build full-stack web products, desktop tools and realtime applications, including AI integrations. My AI-native workflow combines Codex and Claude Code with architecture, typed contracts, code review and automated testing. UX, design systems and conversion optimization inform my engineering decisions.

My background starts with database programming and a Computer Programming degree, followed by web development, SaaS UX and CRO roles. Today, I bring those skills together through full-stack product development.

How I work

  1. 01

    Define the problem

    Map the user flow, constraints, data and acceptance criteria before implementation.

  2. 02

    Build in focused steps

    Break the work into reviewable changes, use AI to support development, and keep interfaces and application logic aligned.

  3. 03

    Verify and document

    Check critical paths, error states and responsive behavior, then document decisions and the next steps.

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