RAN Performance Architect - 4G ESN & LTE Optimization

Randstad Technologies Recruitment

City Of London

On-site

GBP 90,000 - 120,000

Full time

7 days ago

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Job summary

Randstad Technologies Recruitment is seeking an experienced Network Engineering Specialist (4G ESN / Mobile RAN Performance SME) to shape ESN strategy and optimize high-availability networks. You will lead end-to-end performance analysis and troubleshoot complex traces across enterprise mobile infrastructure.

The role involves collaborating with Nokia/Ericsson and delivery teams to propose fixes, analyze LTE/ SIP signaling, and translate data into actionable insights for stakeholders in a

Qualifications

Deep knowledge of 4G RAN macro networks and public safety over LTE/5G+.
Proven expertise with Nokia/Ericsson RAN interfaces and 3GPP standards.
Experience delivering performance improvements in high-availability mobile networks.
Familiarity with third-party supplier collaboration and fix delivery.

Responsibilities

E2E performance & root cause analysis using logs, drive tests and packet traces to improve ESN KPIs.
Analyze LTE/5G traces and SIP/PTT/SRTP/DTLS signaling to optimize core and RAN performance.
Collaborate with delivery teams and external vendors (Nokia/Ericsson) to propose and implement fixes.
Translate technical data into clear insights for technical and business stakeholders.

Skills

4G RAN macro networks

Public Safety over LTE/5G+

3GPP standards

Nokia/Ericsson RAN

Tools

Accuver

TEMS/Nemo

Actix

Wireshark

Protocol analysis (SIP, PTT, SRTP, DTLS)

Job description

The role involves collaborating with Nokia/Ericsson and delivery teams to propose fixes, analyze LTE/ SIP signaling, and translate data into actionable insights for stakeholders in a

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