Referso Jobs

Telco Engineer

Tieto · Posted Nov 5, 2026

Open

Kyiv, Ukraine
Hybrid
3+ years

Apply with Referso

Telco Engineer

Tieto · Posted Nov 5, 2026

Open

Kyiv, Ukraine
Hybrid
3+ years

Apply with Referso

Junior Telco Engineer

Tieto · Posted Nov 5, 2026

Open

Lviv, Lviv Oblast, Ukraine
Hybrid
Full-time · Entry
1+ years

Apply with RefersoAI Apply on careers page

Provide L1 network support for voice and mobile services, monitor fraud events, and implement improvements in fraud prevention services for BICS clients.

Responsibilities

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 internal tools to identify root cause and take resolution measures
Define and implement improvements in the Fraud prevention services delivered to BICS’ customers
Communicate with customers and suppliers to guarantee customer complaints resolution with SLA respect

Requirements

Bachelor’s or Master’s degree in Computer Science, IT, Telecom or equivalent

Skills

GSM NW structure Signalling in GSM networks MTP ISUP/SIP SCCP TCAP protocol stack

Junior Telco Engineer – Tieto Tech Consulting (m/f/d)

Tieto · Posted Nov 5, 2026

Open

Kyiv, Ukraine
Hybrid
Full-time · Entry
1+ years

Apply with RefersoAI Apply on careers page

Provide L1 network support for voice and mobile services, monitor fraud events, and implement improvements in fraud prevention services for BICS customers.

Responsibilities

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 internal tools to identify root cause and take decisions
Define and implement improvements in the Fraud prevention services delivered to BICS’ customers
Communicate with customers, suppliers to guarantee customer complaints resolution with SLA respect

Requirements

Bachelor’s or Master’s degree in Computer Science, IT, Telecom or equivalent

Skills

GSM NW structure Signalling in GSM networks MTP ISUP/SIP SCCP TCAP protocol stack voice call/SMS/flow

Service Desk Engineer (Fraud Prevention & Telecom Support)

Tieto · Posted Nov 5, 2026

Open

Lviv, Lviv Oblast, Ukraine
Hybrid
Full-time · Mid
3+ years

Apply with RefersoAI Apply on careers page

Service Desk Engineer focused on fraud prevention and telecom support for BICS, global communication networks.

Responsibilities

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

Requirements

Bachelor’s or Master’s degree in Computer Science, IT, Telecom or equivalent
Nice to have: Knowledge of the fraud prevention domain
Nice to have: wholesale telecom business

Skills

Knowledge of GSM NW structure Signalling in GSM networks MTP ISUP/SIP

Service Desk Engineer (Fraud Prevention & Telecom Support)

Tieto · Posted Nov 5, 2026

Open

Kyiv, Kyiv City, Ukraine
Hybrid
Full-time · Mid
3+ years

Apply with RefersoAI Apply on careers page

Service Desk Engineer providing L1 network support for voice and mobile services, fraud detection monitoring, and telecom support.

Responsibilities

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 internal tools to identify root cause and resolution measures
Define and implement improvements in the Fraud prevention services
Communicate with customers and suppliers to guarantee customer complaints resolution with SLA respect

Requirements

Bachelor’s or Master’s degree in Computer Science, IT, Telecom or equivalent
Nice to have: fraud prevention domain
Nice to have: wholesale telecom business

Skills

GSM NW structure Signalling in GSM networks MTP ISUP/SIP SCCP TCAP protocol stack

Junior Service Desk Engineer (Fraud Prevention & Telecom Support)

Tieto · Posted Nov 5, 2026

Open

Kyiv, Ukraine
Hybrid
Full-time · Entry
1+ years

Apply with RefersoAI Apply on careers page

Provide L1 network support for voice and mobile services, monitor and investigate fraud events, and implement improvements in fraud prevention services for BICS customers.

Responsibilities

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 internal tools to identify root cause and take resolution measures
Define and implement improvements in the Fraud prevention services delivered to BICS’ customers
Communicate with customers, suppliers to guarantee customer complaints resolution with SLA respect

Requirements

Bachelor’s or Master’s degree in Computer Science, IT, Telecom or equivalent
Nice to have: Knowledge of the fraud prevention domain and the wholesale telecom business

Skills

GSM NW structure Signalling in GSM networks MTP ISUP/SIP SCCP TCAP protocol stack

Telco Engineer

Tieto · Posted Nov 5, 2026

Open

Lviv, Lviv Oblast, Ukraine
Hybrid
Mid
3+ years

Apply with RefersoAI Apply on careers page

Provide L1 network support for voice and mobile services, ensuring quality, reliability, performance, and security of international communications.

Responsibilities

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 internal tools to identify root cause and take decisions
Define and implement improvements in fraud prevention services delivered to BICS’ customers
Communicate with customers and suppliers to guarantee complaint resolution with SLA respect

Requirements

Bachelor’s or Master’s degree in Computer Science, IT, Telecom or equivalent

Skills

GSM network structure Signalling in GSM networks MTP ISUP/SIP SCCP TCAP protocol stack voice call/SMS flow

Junior Service Desk Engineer (Fraud Prevention & Telecom Support) – Tieto Tech Consulting (m/f/d)

Tieto · Posted Nov 5, 2026

Open

Plovdiv, Plovdiv, Bulgaria
Hybrid
Full-time · Entry
1+ years

Apply with RefersoAI Apply on careers page

Provide L1 network support for voice and mobile services, monitor and investigate fraud events, implement improvements in fraud prevention services, and ensure SLA compliance.

Responsibilities

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 internal tools to identify root cause and take resolution measures
Define and implement improvements in the Fraud prevention services delivered to BICS’ customers
Communicate with customers, suppliers to guarantee customer complaints resolution with SLA respect

Requirements

Bachelor’s or Master’s degree in Computer Science, IT, Telecom or equivalent
Nice to have: Knowledge of the fraud prevention domain and the wholesale telecom business

Skills

GSM NW structure Signalling in GSM networks MTP ISUP/SIP SCCP

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