Freelance Software Developer & Full Stack Developer Hakan Sevimoğlu

We didn’t need an off-the-shelf program. We needed a custom system that would let us manage our production, inventory, order and shipping processes the way we actually work. Hakan approached the project not just from a software standpoint but by understanding how our business operates. Today we manage from a single dashboard many processes we used to track with separate tools.

When we pitched our idea, rather than simply coding and delivering the app, we worked through the user experience and the App Store process together. He managed the project professionally from the idea stage all the way to launch. His deep technical expertise was a major advantage for us.

For us it wasn’t just about making sales; our inventory, product, customer and operations processes needed to be connected. Instead of working within the limits of off-the-shelf software, we started using a system built around our business’s needs. Our staff also got used to it much more easily than we expected.

Many steps in our phone repair and inspection processes were handled manually. With the new system, we brought device records, repair jobs, inventory and inspection processes under much tighter control. Our biggest advantage is that the software was built around the real needs of our industry.

We didn’t want a template e-commerce site. We were looking for a platform that supported the sales processes specific to our industry and that we could keep building on. Hakan moved forward with a clear grasp of both the technical side and our business model. After the project, we stayed in touch for our ongoing development needs.

Our AI idea started out as just a concept. To turn it into a real software project, Hakan identified what was actually feasible and built the technical foundation accordingly. What we valued most was that instead of just saying ‘let’s use AI,’ he analyzed where it would genuinely add value.

We used to track many of our staff’s tasks manually, and off-the-shelf software didn’t really fit the way we work. With the custom software, we digitized our workflow around our own needs. The fast turnaround on the improvements we requested afterward was especially important to us.

Our website, mobile app and admin panel needed to work as one system rather than as separate pieces. Hakan designed the entire architecture as a whole. As a result, instead of juggling data transfers between different software tools, we now manage our entire operation from one central place.

Even though we’re based outside Türkiye, we never had any communication issues. We defined the requirements clearly while working remotely and tracked progress regularly throughout development. His technical expertise and experience working with clients in different countries were a real advantage for us.

When working with a developer, our biggest concern was what would happen after delivery. Instead of handing off the project and walking away, Hakan stayed with us through ongoing development and support. As our needs changed, we were able to keep improving the system. That’s why we see him not as a one-time developer but as a long-term technology partner.

Before starting the project, he focused on our business processes rather than the software side of the problem. Together we analyzed which tasks were done and why. The result wasn’t just software that works, but a system that genuinely makes our work easier.

We used to rely on separate Excel files, WhatsApp messages and manual tracking. With the new system, all our information is centralized. We no longer have to pull data from different places to see how the business is doing.