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September 30, 2026

Subscriber Management Engineer

Senior • On-site

Warsaw, Poland

Quick Facts

  • Role: Subscriber Management Engineer

Description

You will support the delivery of Subscriber Management solutions by designing, integrating, validating, and deploying core network elements across complex telecom environments. Working with cross-functional teams, you will ensure smooth implementation, migration, testing, and acceptance while maintaining high quality standards and customer satisfaction.

Responsibilities

  • Design and implement Subscriber Management network elements

  • Perform deployment, integration, validation, and testing activities

  • Prepare technical documentation (LLDs, CIQs, ATPs, MOPs)

  • Support database migration and solution onboarding

  • Troubleshoot technical issues and drive their resolution

  • Coordinate test execution and customer acceptance activities

  • Collaborate with delivery, support, and R&D teams across the project lifecycle

Requirements

  • Experience in telecom solution design, integration, or deployment

  • Strong knowledge of Subscriber Management solutions including HLR, HSS, AUSF/UDM, SDL, EIR, MNP, and One-NDS

  • Experience with subscriber data migration and core network integration projects

  • Solid understanding of 3G, 4G, and 5G mobile networks

  • Hands-on experience with Linux/Unix environments and network configuration

  • Knowledge of virtualization and cloud technologies (e.g., VNF, Kubernetes, Docker)

  • Basic scripting skills in Python, Shell, Perl, or Ansible

Benefits

  • Yearly financial bonus

  • Private medical care with Medicover (including additional packages such as dental, senior care, oncology)

  • Life insurance and access to the NAIS benefit platform

  • Access to 70+ training tracks and certification opportunities (e.g., GenAI, Excel, Business Analysis, Project Management)

  • Free access to Education First languages platform, TED Talks, and Udemy Business

  • Hybrid working model after onboarding (modern office + work-from-home supported by a home office package)

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