Development, Integrations, and Data Visualization Made Simple


We are increasing the value of your existing data and information systems by interconnecting them. Every business challenge is unique by itself. Application Services is our solution for the business demand for custom software development, integration and security of different APIs. Our services address several layers in the Application Lifecycle.


Starting from the data layer composed from SQL and NoSQL stores and continuing with the data integration layer either through ETL services or API integrations between systems that store data and, finally, managing the Business Intelligence that comes on top. We focus on providing a tailor-made software development approach for challenging business cases. We address the demand to solve very specific business needs that cannot be met with commercial off-the-shelf products.



Relational Databases

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Timeseries Databases

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Microservices applications


Business Intelligence


Unified Data estate


API Integration, Security and Management


IIoT Management and Visualization



In most cases we don’t do pure software development. We start with understanding your current informational and data assets, and we evaluate different approaches to increase their value. After we have identified the correct solution we enter a streamlined process starting with business analysis and converting into agile delivery project. To support this we have dedicated business analysts, Scrum masters and QAs.


To ensure fast and reliable delivery we leverage our company’s expertise in Lean Infrastructure to provide CI/CD and platform support.

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“We always receive our quotes very quickly. Given the dynamics in our sector, this is very important for us.”

Yordanka Georgieva TELUS International Europe

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“Telelink Business Services was the absolutely right choice for our IT advisor. We have a long technical relationship with them and especially successful project for implementation of a new MPBN network in VIVACOM started in 2015 and still ongoing which ensures the handling of all challenges with traffic and complexity growth.”

Boris Nazarov Vivacom

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“We’ve worked with TBS for more than 12 years and trust their team to meet our IT needs. TBS has provided high quality services, helping our business to move forward.”

Mr. Shekerletov, Director Global Applications ContourGlobal

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“Digital transformation is crucial to the growth of “Isobar Commerce”. With the help of Telelink Business Services, we have achieved outstanding results. TBS has been an indispensable partner in helping us progress on our digital journey.”

Stanislav Radkov Isobar Commerce

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“The team and staff have been an asset partner to ContourGlobal. Their knowledge and support of any system or process we give them has demonstrated that our choice in having them as a partner was a valuable add.”

Mr. Bree, Head of Global Infrastructure ContourGlobal

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“Time and time again, the Telelink Business Services team has been the go-to IT advisor for us. We are very impressed by their dedication and their professionalism. Our cooperation is essential for our business and we see TBS as a strategic long-term partner.”

Angel Gramatikov Dynata

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“TBS’s response time is quite fast and quotes are very detailed and clearly structured. They have coverage across EU which is also important for us and their scope of products is also wide enough to cover almost all our IT needs. They are very supportive with all additional questions that arise from our side.”

Rayna Vodenicharova Concentrix

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“Highly experienced engineers with great energy and eager to help. I’m quite satisfied with the service.”

Georgi Ribarski Progress Software

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“We would like to express our satisfaction from the professional and highly qualified team of Telelink Business Services. Our cooperation and established partnership give us the ground to recommend them as a loyal and reliable partner.“

Venelin Dimitrov Softgroup



Ognyan Yuskeseliev

Director Application Services & Modern Workplace 

Currently holding the position of Director Modern Workplace and Application Services in Telelink Business Services, Ognyan is in charge of the teams that are responsible for delivering our workplace of the future, software innovation, and data solutions.

Ognyan started his journey in Telelink Business Services in 2015 as Solution Manager, as part of the technology presales team focused on helping customers finding the right Microsoft solutions for their business.

Before joining Telelink Business Services, Ognyan was a Senior architect in DXC (former HPE) focused on cloud productivity solutions, and he was involved in one of the most significant transformation projects of the company. During these more than 15 years of experience in the ICT area, Ognyan achieved numerous certifications like TOGAF Certified, Azure Solutions Architect Expert, and Microsoft 365 Certified: Enterprise Administrator Expert. 

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Our team of experts is always striving to be at the front of the technology wave.




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