Same time zone, direct communication
Saudi Arabia and Turkey share the same clock (UTC+3). Meetings, reviews and urgent fixes happen in real time, without anyone working late. The Saudi working week runs Sunday to Thursday and Turkey's Monday to Friday, so Monday to Thursday are shared working days.
As the Kingdom digitises under Vision 2030, many companies need apps, platforms and integrations built quickly and reliably. Working directly with a senior developer removes the layers that slow agency projects down.
What I build for Saudi businesses
Customer and field-service apps, ordering and booking systems, ERP/MRP modules for production and distribution, B2B dealer portals, POS and inventory software, AI-powered sales tools, and integrations between existing systems.
E-invoicing, payment and government-platform integrations are API-based; I scope each one against the official documentation (for example ZATCA's e-invoicing specifications) during the pre-analysis and include it in the written proposal.
ERP and production experience
I built a production ERP for Mobilesse, a furniture manufacturer in Bursa, covering orders, BOM/MRP, production planning, shipping and inventory. I also built a PPE vending and distribution system used by Brisa. Operations-heavy software is where most of my 18 years have gone.
Why Saudi businesses work with me
One accountable developer
You talk to the person who writes the code. No account managers, no hand-offs between sales and a hidden offshore team.
Full stack, end to end
iOS & Android apps, web platforms, backends, APIs, ERP modules and hardware/IoT — designed, built, deployed and maintained by the same engineer.
Staged delivery
Work is split into milestones you can test. You approve each stage before the next one starts, so budget and scope stay under control.
Source code ownership
The code, repositories and accounts are yours. Documentation and handover are part of the job, not an extra.
Async-friendly communication
Written updates in English, a shared task list, and short video calls when a decision needs to be made together.
Long-term maintenance
18 years in the field means many systems I built are still running years later. Post-launch support is planned from day one.
Agency, off-the-shelf package or freelance expert?
See at a glance which model delivers the most value for the same budget.
| Criteria | Software Agency | Off-the-shelf / SaaS | Hakan Sevimoğlu |
|---|---|---|---|
| Point of contact | Sales + project manager + team | Support line | The expert who writes the code |
| Cost structure | Office, sales and management layers are priced in | Per-user / monthly license, forever | Development work only |
| Fit to your business | Scope changes need extra contracts | ✕ You adapt to the package | ✓ Software adapts to you |
| Response time | Tickets, meetings, approval chains | Queued | ✓ Direct WhatsApp / phone |
| Technical depth | Depends on who is on the team | Limited customization | ✓ 18 years, every layer from mobile to IoT |
| Maintenance | Knowledge is lost when the team changes | Data risk if the product shuts down | ✓ Supported by the person who built it |
Technologies I use
Example projects
A selection of live projects serving real users.
Mobilesse Mobilya — Furniture Manufacturing ERP
One-platform ERP from order to production, stock to shipment and e-invoice for a furniture manufacturer in Inegol, including a 3D product configurator.
View
Vending Machine Software
Embedded control, touchscreen sales UI, payments and remote management.
ViewMobilyaPro B2B — Dealer Order Management
Dealer, order and price list management for furniture manufacturers.
View
Ganicus AI — An AI Employee for Sales Teams
B2B lead finding, map scanning, buying signals, lead scoring, CRM integration and personalized messages in 80+ languages.
View
Kassa — iPhone POS & Inventory App
Barcode sales, stock, customer credit and profit reports for grocery stores and kiosks; works offline.
View
Taxi, Fleet & POS Platform
Passenger, driver and fleet apps with live dispatch and POS.
ViewHow we work
Free intro call
We clarify needs, existing systems and goals together.
Quote & roadmap
Scope, technology, timeline and budget within 24 hours.
Staged development
Weekly demos and a live test environment.
Launch & support
Go-live, training and ongoing maintenance.
Free pre-analysisThe first meeting and roadmap are completely free, with no obligation.
Staged delivery and approvalYou review each module on a test environment before we move on.
Written scope and rightsScope, delivery and source code rights are defined in the contract.
Frequently asked questions
What is the time difference between Saudi Arabia and Turkey?
There is none. Both countries use UTC+3 all year without daylight saving.
Which working days overlap?
Saudi Arabia works Sunday to Thursday and Turkey Monday to Friday, so Monday to Thursday are shared working days.
Can you integrate ZATCA e-invoicing?
E-invoicing integration is API-based. I scope it against ZATCA's official technical specifications during the pre-analysis and include it in the written proposal.
Can you build iOS and Android apps for Saudi customers?
Yes. Native iOS apps in Swift/SwiftUI and Android apps with an API backend and admin panel, including store submission.
Do you have ERP experience?
Yes. I built a production ERP for a furniture manufacturer covering orders, BOM/MRP, production, shipping and inventory, as well as B2B and vending/distribution systems.
How do we start?
Send a short description via WhatsApp or the quote form for a free pre-analysis call and a written proposal.