software engineering

Clean & stable software solutions built by dedicated engineers to stand the test of time.
More About Us

senior Team

We have been growing for 10+ years, with a dedicated team that holds 7+ years of average seniority.

Ideal Location

Nearshore for Europeans, offshore for Americans & Australians, Serbia is a perfect outsourcing location.

deep Skills

We cover a wide range of platforms (Android, iOS, Windows, Linux, macOS), as well as web development.


What we Do

We build tailor-made software solutions to help your ideas come to life. We specialize in:

Strong Architecture

DDD, SOA, CQRS, Event-Driven Architecture, Microservices

Agile / Scrum

We understand the benefits of this method, and follow its principles when needed

FIX Protocol

Working knowledge, relatively rare on the market. Reduces Costs & Increases Efficiency


Hard Work Pays Off

For us, being proud of our achievements means being proud of the team and what they do on a day-to-day basis.

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We Deliver On | Clutch
100% Job Success, Top Rated Plus | Up Work
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TOP B2B Companies | Clutch Serbia 2020
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TOP Developers | Clutch Serbia 2021


HelplineSOS was founded during COVID-19 to assist clinics that were unable to answer their phones due to high call volumes and the closure of offices.

This system is created to help those that are serving others and make their job easier by providing programmatic, technical, and fundraising support.

Team of cross-functional experts working across the United States with experience in communications, technology, and public health.


Technologies used
JavaScript, TypeScript, AWS, Angular

HelplineSOS has been a lifesaver. Since it was put in place, there have been almost 4500 calls registered and returned in less than 30 days. 


Blåtolk is a written text interpreter program that can send a text wirelessly to the user completely without the need for either the internet or third-party equipment, thanks to the Bluetooth protocol.

HLF Briskeby R&D has over 60 years of experience in the field of hearing aid development and research area.


Technologies used
Ionic and Angular, Windows Forms, Bluetooth protocol

Thanks to HLF Briskeby R&D and our software engineering team we have a solution that helps people with hearing problems and an application that is 100% free, and 100% ad-free.


PianoCal is an intelligent calendar made for the piano service business. This web application supports an intelligent calendar, automated emails, online bookings and website integration and helps its users and their clients organize better by sending appointment reminders and confirmations.

Naissus tech worked on the implementing and enhancing of various features in the application and is still working on maintaining this product.

PianoCal is a CRM and appointment/schedule management web app and an essential tool for every piano technician.


Technologies used
.Net i jQuery Mobile

Over $5,000,000 in appointments have been booked using PianoCal. Thanks to our collaboration with the client, PianoCal has been able to support their subscriber base and have a better client self-booking workflow and app performance. Issues with e-mail reminders were also successfully resolved.


Meet our friends and collaborators

We are only as good as our clients say we are.
Gold Bullion International

"I have been a client of Naissus for over ten years. In my 30+ years of developing software systems I have not encountered a more talented or professional outfit."

KinChip Systems

''The team not only provided robust technical skills and know-how, they also developed a solid understanding of the user journey and were able to point out areas of concern and suggest better ways of doing things. I would definitely use Djordje and his team for future projects.''

Bricknode Software AB

"Naissus has an incredibly good attitude and is flexible in finding the best solutions for us. It is great security for us to have Naissus team as consultants when we need to."


"Djordje endeavors to keep his clients well-informed of project status and flags scheduling issues if they occur. [Naissus] had a great work ethic and a sincere desire to see their clients succeed."

HLF Briskeby

"We selected Naissus mainly due to their honest and sheer interest in our concept, something other potential developers were lacking. They also gave a realistic but fair ballpark estimate early on in the hiring process."

Helpline SOS

"The responsiveness of the team was great, and the interpersonal relationships that we formed were something I appreciated. Sometimes, technical teams lack the communication skills to match their development knowledge, but with Naissus technologies, it wasn’t like that."

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