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Tieto

IT services to accelerate business transformation

Service Desk Engineer - Fraud Prevention & Telecom Support

Telecommunications EngineeringConfirmed live in the last 24 hours
Full-timeVeliko Tarnovo, BulgariaNo salary listed

About the Job

Requirements

  • A Bachelor's or Master's degree in Computer Science, IT, Telecom, or equivalent is required.
  • At least 3 years of experience operating mobile or fixed networks as an engineer is required.
  • Knowledge of GSM network structure, signaling in GSM networks, MTP, ISUP/SIP, SCCP, TCAP protocol stack, voice-call and SMS flow, and working principles of IP networks is required.
  • Experience with signaling protocol monitoring tools, protocol analyzers, and trace analysis is required.
  • Knowledge of network KPIs and analysis of statistics and reports is required.
  • Good written and spoken English is required.

Responsibilities

  • Provide Level 1 network support activities for voice and mobile services 24x7.
  • Ensure reactive repair activities with customers, suppliers, and third parties worldwide.
  • Monitor and investigate fraud events generated by internal tools, including fraud detection systems and QoS tools, to identify root causes and determine resolution measures.
  • Define and implement improvements in the fraud prevention services delivered to BICS customers.
  • Communicate with customers and suppliers to resolve customer complaints in accordance with SLAs.

Desired Qualifications

  • Knowledge of the fraud prevention domain and wholesale telecom business is an asset.

About the Company

Tieto

IT services to accelerate business transformation

Tieto provides IT services to help businesses run more efficiently in a multi-sourcing, digital environment. Its offerings include consulting, system integration, cloud services, security, and industry-specific solutions across sectors such as energy, retail, finance, healthcare, and public sector. The company helps clients modernize their operations by combining business and IT transformation, data-driven insights, and managed services to enable digital experiences, compliant governance, and streamlined IT operations. Its approach differentiates itself through its emphasis on service integration and management (SIAM) in multi-vendor landscapes, end-to-end industry-focused solutions, and ongoing support that covers security, cloud orchestration, and transformation programs. Tieto’s goal is to help customers accelerate digitalization, improve efficiency, and realize cost predictability through integrated, secure, and scalable IT services.

Company size
10,001+
Company stage
Not listed
Total funding
Not listed
Headquarters
Helsinki, Finland
Founded
1968

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