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. We hereby inform you that Inetum Polska sp. z o.o. has implemented an internal reporting (whistleblowing) procedure. The content of the procedure and the possibility to submit an internal report are available at: Inetum Polska is part of the global Inetum Group and plays a key role in driving the digital transformation of businesses and public institutions. Operating in cities such as Warsaw, Poznan, Katowice, Lublin, Rzeszow the company offers a wide range of IT services. Inetum Polska actively supports employee development by fully funding training, certifications, and participation in technology conferences. Additionally, the company is involved in local social initiatives, such as charitable projects and promoting an active lifestyle. It prides itself on fostering a diverse and inclusive work environment, ensuring equal opportunities for all. Globally, Inetum operates in 19 countries and employs over 28,000 professionals. The company focuses on four key areas: Consulting (Inetum Consulting): Strategic advisory services that help organizations define and implement innovative solutions. Infrastructure and Application Management (Inetum Technologies): Designing and managing IT systems tailored to clients’ individual needs. Software Implementation (Inetum Solutions): Deploying partner solutions from industry leaders like Microsoft, SAP, Salesforce, and ServiceNow. With strategic partnerships with major technology giants, including Microsoft, SAP, Salesforce, and ServiceNow, Inetum delivers advanced technological solutions tailored to customer requirements. In 2023, Inetum reported revenues of €2.5 billion, underscoring its strong position in the digital services market. Inetum distinguishes itself by offering a comprehensive range of benefits that meet the diverse needs of employees, providing flexibility, support and commitment. Here's what makes working at Inetum unique: Flexible and hybrid work: Flexible working hours. Hybrid work model, allowing employees to divide their time between home and modern offices in key Polish cities. Attractive financial benefits: A cafeteria system that allows employees to personalize benefits by choosing from a variety of options. Community and Well-Being: Dedicated team-building budget for online and on-site team events. Opportunities to participate in charitable initiatives and local sports programs. A supportive and inclusive work culture with an emphasis on diversity and mutual respect.