Build smarter solutions

We provide best in class software services that enable our clients to achieve their goals.

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At Your Service

Cobalt Hills Tech offers web and mobile app development services throughout the entire product development cycle: idea exploration, design and prototyping, implementation, quality assurance, release management and post-launch maintenance.

Web Development

Our team builds strong, scalable and secure backend and frontend systems that seamlessly fit with your company's needs.

We develop custom web applications from scratch as well as integrate systems from other vendors.

Mobile Development

We create cross-platform mobile apps that offer flawless functionality along with a smooth native user experience on both iOS and Android.

A mobile app is a valuable tool for converting traffic into loyal customers.

Machine Learning

With applications built on deep learning algorithms, we solve complex business problems.

AI and machine learning save you time and money, as well as allow you to unlock new business opportunities.

Quality Assurance

Along with rigorous quality assurance for products we build, we also offer thorough analysis of your apps & platforms.

We test across a wide range of devices and network conditions to locate bugs and issues before they become problems.

IT Consulting

Our experts can analyze your current processes and systems and advise on how to improve and optimize them.

From system modernisation to prototyping, we can offer guidance on any software related matter.


Whether you're in need of a dedicated mentor or just looking for some educational workshops and trainings, we are committed to sharing our knowledge and experience.

Proper use of pull requests is proven to be the best educational tool for software engineers.

Our Portfolio

If you’re looking for experienced web & mobile development, you’ve come to the right place. We build products that matter. Every day, we work with startups and global corporations to build products that help them change the world.

About Us

Cobalt Hills Tech is a software engineering firm specialized in consulting, education, and proprietary application and product development. Founded by engineers, we believe that technical expertise is the driving force behind today's businesses. We are committed to providing professional application and product development, as well as technical consulting and custom programming services.

We take pride in building elegant, clean web and mobile applications that are a joy to use. We’re experts in building products from the ground up and scaling them globally.

We believe that software should be created in a partnership between companies and their vendors, where both parties have a vested interest in the success of their project. This type of close working relationship fosters collaboration and trust. As experts in your industry, you know what is needed for your company's success and with our expertise in creating perfect software solutions, we can help you reach that goal.

Who are we

Leo Brdar
Leo Brdar

Leo Brdar is an experienced full-stack developer with a demonstrated history of working in the global information technology and services industry for over 9 years.
Highly proficient in React, React Native, Redux, GraphQL, Relay, Apollo, Node, TypeScript, Python and MySQL.

He is a strong engineering professional with a Master of Computer Science, focused in Computer Software Engineering.
Highly ambitious, hard-working individual with high levels of self-motivation, the ability to make decisions and resolve conflicts in a team environment, and an aptitude for time management. Interested in acquiring a broad range of skills and applying them in novel ways.

Leo had a wide experience throughout his career including being a lead engineer, engineering manager, architect, teacher and a mentor.


Pod vrh 7, Cernik, 51219 Čavle, Croatia


(+385) 98 918-2348
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