Building software since 2019

I build products.
Not just code.

From product strategy to system architecture and the last pixel. I turn complex ideas into products people actually use.

gurhan@workspace Available for interesting ideas
$whoami

Developer who cares about product, architecture and execution.

$current-focus

AI products · SaaS · Scalable systems

TypeScriptReact / VueNode.jsMongoDBAWS
$
Software EngineerCTOProduct BuilderScroll to explore
01 / Selected Work

Products, not screenshots.

A few systems where product judgment and engineering execution had to work as one.

01
Field operations SaaS

SahaSkop

A web and mobile field sales platform connecting visits, routes, tasks, orders, collections and performance in one operating system.

B2B SaaSOffline-firstERP / CRM
My role

Founder · Product · Architecture · Full-stack

Built for

Distributed field operations with one measurable, connected workflow.

Case study
02
AI education platform

Heoxa

A white-label LMS and commerce platform for educators and institutions to build, manage and monetize their own digital academies.

EdTechMulti-tenantAI
My role

Product · Platform architecture · Full-stack

Built for

Course delivery, assessment, commerce and AI in one branded platform.

Case study
03
Secure file infrastructure

DataTransfer Pro

An enterprise file-transfer product for encrypted sharing, controlled access and deployment on private servers or secure cloud storage.

SecurityStorageEnterprise
My role

Architecture · Security flows · Full-stack

Built for

Large-file collaboration with organizational control and traceability.

Case study
04
Hospitality product

RezzApp

A reservation and operations product designed to turn fragmented hospitality workflows into one clear operating system.

SaaSMulti-tenantReal-time
My role

Product strategy · Architecture · Full-stack

Built for

From operational complexity to a product teams can actually run.

Case study
More shipped products

Product archive

Different markets. Different constraints. The same end-to-end ownership.

05Applied AI product

AI Career SaaS

A focused AI workflow that turns an ambiguous career task into a fast, understandable and measurable product experience.

06Yacht marketplace

Yatbu

A discovery and marketplace platform connecting yacht inventory, detailed vessel data and buyer–seller communication.

07Video competition platform

Qante

A short-form video competition product combining uploads, engagement-aware voting, rankings and reward mechanics.

08Exam system

Assessment Platform

A purpose-built assessment system covering question workflows, timed exams, evaluation and result reporting.

09Document AI

AI Receipt Intelligence

An AI-powered receipt-reading workflow that converts unstructured images into validated, usable financial data.

Details are intentionally focused on decisions and outcomes. Client-sensitive screens and metrics stay private.

02 / The Lab

Don’t take my word for it. Play.

Small working experiments that make architecture and product decisions visible.

Live experiment

System Design Playground

Watch a SaaS architecture evolve as the product grows.

scenario_01HEALTHY
CLIENT
Web + MobileNext.js · Native
EDGE
CDN + WAFCached assets
APPLICATION
Modular APINode.js
Event GatewayWebSockets
DATA
Primary DBReplica + cache
RedisHot reads
!
ARCHITECT’S NOTE · 100K USERS

Separate the async workload first. Add read replicas and caching before splitting every domain into services.

Expected load~380 req/s
Target p95<220ms
Infra profile$$
ArchitectureHybrid
03 / Engineering Notes

Decisions over tutorials.

Short field notes on the constraints, trade-offs and product thinking behind real systems.

01
Engineering note · 8 min

Designing token billing for an AI SaaS

Why metering model usage is only the start—and how product value, margins and transparency shape the billing model.

02
Architecture note · 6 min

What actually needs to work offline?

A practical way to define offline boundaries, conflict rules and sync behavior for field teams.

03
Decision log · 5 min

MongoDB for a distributor network

The data-model decisions behind multi-level relationships—and the trade-offs I would watch as the network grows.

04 / About

Strategy in one hand. The codebase in the other.

I sit at the intersection of product, technology and execution. That means asking why before choosing how—and staying close enough to the code to make the answer real.

I've been building software since 2019, helping turn early-stage ideas and operational problems into dependable products. My best work happens with teams that value clarity, ownership and useful outcomes.

01

Start with the constraint

Good architecture begins with what the business and users actually need—not a fashionable diagram.

02

Make complexity earn its place

Every service, abstraction and dependency carries a cost. I add them when the product earns them.

03

Own the outcome

Shipping is part of the design. I stay with the problem from uncertain first conversations to production reality.

NOW / ISTANBUL

Exploring reliable AI workflows, sharper SaaS economics and systems that scale without drama.

Updated Sep 2026
Available for interesting ideas

Have a product worth
getting right?

Bring the ambition, the messy context and the hard questions. I'll bring product judgment and engineering depth.

Start a conversation
Good fit forNew products Technical strategy Complex rebuilds