What does a freelance software developer do?
A freelance software developer is an independent software expert who takes on every step: requirements analysis, software architecture, UI, backend, database, testing, launch and maintenance. You talk to one person, and the same person stands behind every technical decision.
I have filled this role for 18 years: I have built iOS apps live on the App Store, enterprise ERP/MRP systems, mobile POS and inventory software and IoT devices running in the field.
What I offer
Single point of contact
One person accountable for every layer of the project; your questions are answered within hours.
End-to-end technical ownership
Architecture, code, server and launch in the same hands, so nothing gets lost in between.
Flexible scope
When your needs change, the scope is updated without bureaucracy.
Phased delivery
You see each module in a test environment, approve it, then move on.
Enterprise discipline
No compromises on version control, documentation and testing.
Post-launch support
Maintenance, security updates and new feature development continue.
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.
Kassa — iPhone POS & Inventory App
Barcode sales, stock, customer credit and profit reports for grocery stores and kiosks; works offline.
View
Forbest AVM Pro — Retail Analytics
AI-based visitor counting and footfall analytics.
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 does a freelance software developer do?
An independent software expert who single-handedly handles the analysis, design, development, testing, launch and maintenance of a software project without being tied to an agency.
How are freelance software developer rates determined?
Pricing depends on the number of modules, platforms (iOS, Android, web), integrations and delivery timeline. After an initial call, an itemized quote is sent within 24 hours.
How can I trust a freelance software developer?
You can review reference projects running live, video client testimonials and apps on the App Store. With phased delivery, you approve every step as you go.
Who owns the source code?
Source code delivery, licensing and usage rights are clearly written into the contract before the project starts.