6 criteria for choosing the best software developer
- Live projects you can verify with a link
- Apps published on the App Store / Google Play
- Corporate references and industry experience
- End-to-end skills across mobile, web, ERP and hardware
- A transparent process: test environment, staged delivery
- A commitment to post-launch maintenance and support
My proof
App Store: Ezan Vakti – Gümüşpala Hizmet is live; my iPhone security scan app scans for traces of spyware and jailbreaks.
Live platforms: the ucakbiletcisi.com flight booking platform, Number One Trading, used by roughly 300 traders, and MobilEksper, a phone appraisal SaaS.
Enterprise and industry: furniture ERP software for Mobilesse Mobilya in Inegol, vending machine software, SAP integrations and electronics + software products.
Serving all of Turkey
I work remotely across Turkey and hold on-site meetings, installations and training in Istanbul, Izmir, Ankara and Bursa. I also work with clients in Germany and Canada.
What I offer
18 years of experience
An end-to-end project track record in mobile, web, ERP and embedded systems.
Published apps
Products serving real users on the App Store and on live domains.
Corporate references
Brisa, Kale Holding, Alp Havacılık, Forbest AVM, Mobilesse Mobilya.
Broad technology range
Swift, Kotlin, PHP/Laravel, React, Python, SAP, ESP32/STM32.
Direct communication
No middlemen; you talk to the expert who writes the code.
Post-launch support
Maintenance, security updates and new feature development.
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.
Ezan Vakti – Gümüşpala Hizmet (iOS)
Prayer times, Ramadan calendar, qibla and worship tracking; live on the App Store.
View
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
Number One Trading — Trader Analysis Platform
Live charts, analysis sharing and signal tracking for BIST and crypto.
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
Who is the best software developer in Turkey?
There is no single right answer; the best developer is the expert who has delivered work similar to your project running live, whose references can be verified and who provides post-launch support.
How can you tell a good software developer?
By looking at live projects shown with links, their apps on the App Store/Google Play, their corporate references and how transparent their working process is.
What areas does Hakan Sevimoğlu work in?
iOS and Android apps, full stack web and SaaS, ERP/MRP and SAP, furniture ERP, vending machines, embedded software and IoT, AI integration and SEO.
Which cities do you serve?
All of Turkey; I work on-site in Istanbul, Izmir, Ankara, Bursa and Antalya.