Product planning and design
We shape your idea into a clear plan and a product your customers understand at first glance. You see it and approve it before we build.
Experience with customers from Sweden and Switzerland
Guardian is a senior software team from Sarajevo. We turn your idea into a real product, take full responsibility for it, and stay with it for years after launch.
Experience from building products for
FellerSchneider ElectricSweetspotNeotech SolutionsUpwork clients
From a booking platform to an internal tool or a mobile app, we shape your idea into a plan, build it and keep it running.
We shape your idea into a clear plan and a product your customers understand at first glance. You see it and approve it before we build.
We build complete products from the ground up, or take over the one you already have and make it better. Web, mobile and the systems behind them, all from one team.
Bookings, payments, catalogs and banking: software where every transaction has to be right. We take on the hard problems and own the result.
A stable team that keeps your product secure, up to date and growing, year after year. The same developers stay on it, so knowledge is never lost.
Senadin, Guardian's owner, has worked on these products end to end, from the first conversation with customers to the finished application. Sweetspot and Feller make products that millions of people use.
GolfBookingPaymentsMobile app
A popular golf booking app and business platform
Golfers use the Sweetspot app to find and book times. Golf clubs, driving ranges and simulator centers across the Nordics and the USA run their bookings, payments and memberships on it.

Smart buildingsSwitzerlandWebOnline catalog
Web products for the Swiss electrical company, part of Schneider Electric
Feller makes electrical switches, sockets and smart building technology. The biggest project, the Feller online catalog, moved Feller from an old PHP platform used for years to a completely new online catalog for its switches, sockets and accessories.
online-katalog.feller.ch ↗feller.ch ↗Part of Schneider Electric ↗

Industries we know from the insideGolf and leisure bookingSmart buildings and electricalBanking and fintech
With today's tools, including AI, software can be written faster than ever. Speed alone does not keep a business running. Companies need software that is well built, understood by the people who maintain it, and owned by a team that answers for it.
We own the result: planning, development, testing, launch and everything that comes after. You always know who is accountable.
We have supported customers directly for years, so we understand the business and the people behind every feature you ask for.
We prefer projects that last for years. The same developers stay on your product, so knowledge is never lost between teams.
We use modern tools to deliver quickly, and an experienced developer reviews and tests every change before it reaches your users.
Guardian is a senior software team from Sarajevo, Bosnia and Herzegovina. We take full responsibility for medium and large projects that need reliable software and developers who stay. Senadin, the owner, has built banking software, web products for Feller and Schneider Electric, and the Sweetspot golf platform, always working directly with the customers who use them.

Founder and owner · Software engineer
I started as a freelancer on Upwork and built banking software before the AI era. Today I build web products for Feller and Schneider Electric, and work on Sweetspot, a popular golf booking app. Those years taught me that writing software is the easy part. Keeping it reliable while a business grows is what Guardian takes responsibility for.
Team of three experienced developers, each with years of work on production software.
Software engineer, now builder
The business platform for golf. A large and growing number of golf clubs, simulator centers and driving ranges across the Nordics and the USA run on it.
Software developer, full time
Digital products for the Swiss maker of electrical switches, sockets and smart building technology. Part of Schneider Electric.
Software developer
Banking solutions, software that handles real money and has to be right every time.
Freelance software developer
Projects for clients from around the world.
We start by understanding your goals, your users and the systems you already have.
You get a clear plan, timeline and budget before development starts.
We deliver in regular steps and show you progress along the way.
After launch we maintain, support and improve your product for as long as you need.
Every model comes with the same promise: one accountable owner and developers who stay.
You bring the idea. We plan, design, build and launch it for an agreed scope and budget.
Best forNew platforms, apps and first versions
A Guardian team that works only on your product, month after month, and owns its quality.
Best forProducts that keep growing for years
Experienced developers join your existing team and work in your tools and your time zone.
Best forTeams that need senior help quickly
Have a question that isn't here? Ask Senadin directly.
Yes. Bring us any idea, from a booking platform to an internal tool or a mobile app. We help you shape it into a clear plan, then build it, launch it and keep it running.
Medium and large software projects where reliability matters: business platforms, customer portals, booking and payment systems, and products that need to keep running and growing for years.
Yes. We review the code, stabilise what is already there, and then take responsibility for maintaining and developing it further.
Yes, that is the point. We maintain, support and improve your product for as long as you need, with the same developers who built it.
We use modern tools, including AI, to work faster. Every change is still reviewed and tested by an experienced developer, so speed never comes at the cost of quality.
We are in Sarajevo, Bosnia and Herzegovina, in the CET time zone. We work remotely with regular calls, clear written updates and one person you can always reach.
Tell us what you have in mind. Senadin will reply to you personally within one working day.