Serdar Sağlam

Software & Platform Development

A web platform is a different job from a website. On a site, you display content; on a platform, there are user accounts, permissions, payments, data and business rules that change over time. When the number of users grows, a site just gets more traffic; a platform starts breaking.

I build platforms that need memberships, subscriptions, payments and admin panels. dinle.link, a bio link platform for musicians, Ketsy, a management platform for educational institutions, and Digitalent Music, a music distribution platform, are among the products I've built. All of them are live, and all of them have real users.

Because I built these products myself, I bring something different: I know not just how a platform is written, but how it behaves after launch. What happens when a payment fails, what a subscription cancellation does to the data, what gets lost when there's no backup; these are questions nobody raises at the pitch stage, yet they're what really define a product.

To turn your idea into a working product, we define the scope together and I build it end to end, from the database to the interface. You can see my live platforms on my references page.

What I Do

SaaS & Admin Panels
Role and permission structure, user management, reporting screens; the panel used by the people who run the business.
Memberships and Subscriptions
Sign-up, login, password reset, plan structure, trial period and cancellation flow, designed from start to finish.
Payment Integration
One-time payments and recurring subscription billing, failed-payment scenarios and invoicing flow.
API Integration
Connections to external services: payment providers, email, notifications and partner systems.
Data Model
The database design is done right from the start. A data model fixed after the fact is the most expensive fix there is.
Security & Backups
Access control, input validation, secrets management and automatic backups; the invisible half of the product.

How We Work

01

Scope and priorities

Together we decide what the product will do and what it won't do in the first version. The most common mistake is trying to cram everything into version one.

02

Data model and flows

User types, permissions and core flows are mapped out, and the database structure is designed around them. Skip this step and the product grinds to a halt six months later.

03

Interface and panel

The user-facing side and the admin panel are designed and built. The admin panel isn't left for later; if you can't manage the product, the product isn't working.

04

Payments and integrations

Payment processing, email and any required external service connections are set up. Failed-payment and cancellation scenarios are tested separately.

05

Launch and maintenance

Server setup, SSL, security settings, automatic backups and monitoring are configured. Fixes and improvements continue after launch.

Work I've Done in This Area

dinle.link

Link-in-bio platform for musicians, with subscription infrastructure

ketsy.app

Management platform for educational institutions

digitalent.music

Global music distribution platform and artist dashboard

radiosworks.com

RADIOS, a sales, booking, broadcasting and reporting platform for radio stations

yunusanginer.com

Author and academic website with a membership and live class platform

cihanabla.net

Membership and content platform

All published projects are on the references page.

About Software & Platform Development

I have an idea but no technical background. Can we still work together?

Yes, that's how most projects start. I make the technical decisions; all I need from you is to explain how your business works. We define the scope together and decide together what goes into the first version and what doesn't.

What technology do you use?

The technology is chosen to fit the project, not decided in advance. What matters is what the product will do, how many people will use it, where it will be hosted and who will maintain it later. I don't pick technology because it's trendy.

Can you set up payment processing?

Yes. I set up one-time payments and recurring subscription billing, including trial periods, cancellations and failed-payment scenarios. The payment provider is chosen based on your target country, currency and business model.

Who maintains the product after launch?

I can keep going, or I can hand it over to your own team, whichever you prefer. In a handover, the code, database structure and server setup are documented, so whoever takes over the product doesn't have to figure it out from scratch.

Can you take over and develop an existing platform?

Yes, but I need to review it first. With inherited projects, the real issue isn't code quality but how healthy the data structure is. After the review, I tell you plainly what can be fixed and what needs to be rewritten.

More on the Technology Side

For music services, see the music strategist page.

Let's Turn Your Idea into a Product

Tell me briefly what you want to build, and we'll work out the scope together.