Customer Service & Support Jobs in Veliko Tarnovo, Bulgaria (Now Hiring) — 6 open

Do you have a Telco background, passion for problem-solving, and want to join one of the largest tech companies in the Nordics? Then this is the role for you!

We are looking for a Junior Telco Engineer to join Tieto Tech Consulting (MentorMate from 2001 to 2026), and work on a project within a Telecom Team for our valued client, BICS.

Tieto Tech Consulting works as a true partner, solving clients’ toughest technology challenges and delivering reliable outcomes that drive measurable results. By merging data, cloud, AI and design with deep industry expertise, we create impactful yet intuitive digital solutions that empower people and move businesses forward.

Join the team of our customer BICS – a global telecommunication enabler with a physical network stretching through the globe!

• Grow your expertise through interacting with A-level mobile carriers from all over the world
• Get your hands on the vast network with on land, underwater, and space points of presence
• Join our decade-long partnership with BICS to ensure confidence in your future and long-term growth

Tieto-BICS team has been growing since 2010… and we are looking forward to grow with you!

When joining Tieto Tech Consulting as a Junior Telco Engineer

• You will provide L1 network support activities for voice and mobile services 24x7
• Ensure re-active repair activities with customers, suppliers and third parties worldwide
• Monitor and investigate fraud events generated by the relevant internal tools (fraud detection systems, QoS tools and other tools) to identify the root cause and take decisions and resolution measures
• Define and implement improvements in the Fraud prevention services delivered to BICS’ customers
• Communicate with customers, suppliers in order to guarantee customer complaints resolution with SLA respect

Who we are looking for

• Bachelor’s or Master’s degree in Computer Science, IT, Telecom or equivalent
• 1+ year of experience in the operation of mobile or fixed networks as an engineer
• Knowledge of GSM NW structure, Signalling in GSM networks, MTP, ISUP/SIP, SCCP, TCAP protocol stack, voice call/SMS/ flow, working principles of IP networks
• Knowledge of the fraud prevention domain and the wholesale telecom business will be an asset
• Experience with signalling protocol monitoring tools, protocol analysers, trace analysis
• Knowledge of Network KPIs, analysis of statistics and reports
• Good written and spoken English

As a person, we believe you are a team player who takes action and demonstrates responsibility to organize your work and solve your tasks. With our agile end-to-end development process, you will continue to both learn from, and coach your colleagues, so communication is important for us. Technology is developing fast, so learning new innovative technologies is something you strive to do.

We offer

We offer you professional growth, meaningful projects, open culture, and an outstanding work-life balance! We offer you an opportunity to create the future of a growing, fast-developing, and important sector. We believe that our organizational culture is an important part of enabling you to be successful. We provide a flexible hybrid work model as part of our culture and way of working. Finally, we also believe in curiosity and learning as a lifestyle where you need to unlearn and relearn every day as new possibilities emerge.

Did we get you inspired? 

We look forward to your application! Please attach your CV or LinkedIn-profile and we will reach out to you. Interviews will be held on a continuous basis, so we encourage you to apply today.

Hope to hear from you soon!

We perform background checks on all final candidates.

Tieto declines calls from recruitment companies.

At Tieto, we believe in the power of diversity, equity, and inclusion. We encourage applicants of all backgrounds, genders (m/f/d), and walks of life to join our team, as we believe that this fosters an inspiring workplace and fuels innovation. Our commitment to openness, trust, and diversity is at the heart of our mission to create digital futures that benefit businesses, societies, and humanity.

Diversity, equity and inclusion | Sustainability | Tieto