Integration Engineer / 1

As a Integration Engineer (BSS-Core) in Mobile Network Engineering, you will be responsible for:

Act as interface between BSS business/operations and technical teams.
Translate business and functional requirements into clear technical requirements and Change Requests (CRs) for vendor engineering teams.
Analyze customer-observed issues and network anomalies and identify error patterns (e.g., CDR inconsistencies, provisioning issues).
Support defect triage and resolution across BSS, Core, and vendor organizations.
Validate and verify vendor solutions (e.g., Rakuten, Mavenir), including challenging proposed fixes where required.
Assess end-to-end impact of vendor changes across BSS, Core, and service behavior.
Perform log, trace, and protocol analysis (e.g., PCAP, KPIs) to identify anomalies.
Ensure end-to-end understanding of service flows and dependencies between BSS, and Core (4G/5G).
Support and improve observability and troubleshooting concepts across domains.

Good understanding of telecom system architecture.
BSS systems (charging, provisioning, APIs).
4G/5G Core network functions and integrations.
Experience with log, trace, and signaling analysis (e.g., PCAP, Diameter, HTTP/REST APIs).
Hands-on experience in troubleshooting and defect analysis in complex distributed systems.
Experience working in multi-vendor telecom environments.
Strong analytical and problem-solving skills.

Nice to have:

Knowledge of RAN components.
Knowledge of 3GPP standards and telecom protocols.
Ability to translate between business requirements and deep technical implementations.

Remote or hybrid work: three times a week from one of our offices in Warsaw, Poznań or Lublin.
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