Senior Solution Integrator

Technology, Data & Digital · IT Infrastructure & Security · Network Administration

In short

Die Rolle als Senior Solution Integrator für Life Cycle Management (LCM) von IMS Nodes ist verantwortlich für die Verwaltung des End-to-End-Lebenszyklus von IMS-Netzwerkknoten, einschließlich Upgrades, Migrationen, Erweiterungen und Stilllegungen. Die Rolle stellt die Kontinuität der IMS-Dienste, nahtlose Übergänge im Software-/Hardware-Lebenszyklus und eine hohe Servicequalität in Multi-Vendor-Umgebungen sicher, während sie die 3GPP-Standards und Ericsson-Liefer-Frameworks einhält.

Responsibilities

Plan and execute software upgrades, patches, and hardware replacements for IMS nodes (CSCF, SBC, TAS, DNS/ENUM).
Perform node expansions, migrations, and decommissioning in live networks.
Prepare NIRs, MOPs, and rollback plans; execute activities with minimal service impact.
Ensure alignment with HLD/LLD, CPI, and customer requirements.
Conduct pre/post-upgrade, regression, SIT, IOT, and UAT testing.
Validate VoLTE, VoWiFi, SIP routing, and call flows post-LCM.
Optimize KPIs, parameters, and capacity across multi-vendor IMS environments.
Analyse SIP/DIAMETER logs and traces, identify root causes, and resolve defects.
Provide L2/L3 support, including emergency recovery and rollback.
Collaborate with architects, customers, cross-functional teams (Cloud, PACO, Transport), and Ericsson product teams.
Prepare runbooks, test reports, and acceptance documents; maintain SOPs and best practices.
Track milestones, risks, and issues; maintain version control and configuration records.

Requirements

Strong understanding of IMS architecture and 3GPP standards.
Hands-on experience with SIP, SDP, DIAMETER protocols
Hands-on experience with VoLTE / VoWiFi services
Hands-on experience with Linux/Unix systems, OpenStack & K8s skill
Experience in software upgrade and migration of telecom IMS nodes.
Knowledge of telecom nodes such as CSCF, TAS, SBC, DNS/ENUM.
Familiarity with packet core (EPC/5GC) and associated signalling flows.

Desired Qualifications

Understanding of Ericsson IMS product portfolio and LCM procedures (preferred).

Benefits

Outstanding opportunity to use your skills and imagination to push the boundaries of what’s possible.
Be challenged but not alone.
Join a team of diverse innovators.
Encouraging a diverse and inclusive organization is core to our values.

Skills

SIPSDPDIAMETERVoLTEVoWiFiLinuxUnixOpenStackK8s3GPP

About Ericsson

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