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Junior Telco Engineer – Tieto Tech Consulting (m/f/d)
Posted by Tieto on 21 October 2026. Still on their SmartRecruiters board when we checked 36 min ago. Half of Tieto's roles come down within 23 days.
What the posting is about
Join Tieto Tech Consulting as a Junior Telco Engineer to provide L1 network support for voice and mobile services, investigate fraud events, and improve fraud prevention services for BICS, a global telecom operator. Collaborate with customers, suppliers, and third parties worldwide to ensure customer complaints resolution. Bring your passion for problem-solving and 1+ year of experience in mobile or fixed networks to this role.
Read out of the posting
Levelmid
Experience asked1+ years
EmploymentFull time
LocationSofia, Bulgaria
RemoteNot stated
Visa sponsorshipNot stated
SalaryNot published, and most postings do not
Posted2026-10-21
Found viasmartrecruiters, direct from their system
We had it within the hour it went up.
The posting, as the company wrote it
Employment: Full-time
Experience level: Mid-Senior Level
Job Description
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 who wants to be part of Tieto Tech Consulting and join our Telecom Team, working on a project for our respected client, BICS (part of Proximus Global).
BICS operates one of the world's most extensive communication networks, carrying around 50% of global roaming traffic and connecting more than 5 billion mobile subscribers worldwide. Through partnerships with hundreds of operators, service providers, hyperscalers, and enterprises, BICS delivers connectivity across 1000+ destinations and supports a broad portfolio of services including Voice, LTE and 5G Roaming, Cloud Communications, IoT Connectivity, Messaging, Mobile Identity, Signaling, Fraud Protection, and Global SIP Trunking. 
You will work with the world's largest telecom operators and technology providers, helping to ensure the quality, reliability, performance, and security of international communications, while impacting how billions of people connect, communicate, and do business every day. 
Beyond traditional telecommunications, BICS is at the forefront of enabling digital transformation, cloud interconnectivity, IoT ecosystems, and next-generation mobile services, helping customers navigate the evolving global connectivity landscape. 
Become a part of the BICS community at Tieto Tech Consulting that has been growing since 2010 and enjoy the comfortable and stable environment where new ideas thrive. 
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.
Additional Information
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
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• For more information visit  Important Advisory Regarding Recruitment Fraud | Tieto Blog
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