Networks Test Engineer

3 days ago

Birmingham, Birmingham, United Kingdom National Physical Laboratory Full time
Job Title: Networks Test Engineer

We are seeking a highly skilled Networks Test Engineer to join our UKTL Lab & Test Networks team. As a key member of our team, you will be responsible for the operation and maintenance of our UK Telecoms Lab Radio Access Networks.

Your primary focus will be on ensuring the smooth operation of our Radio Access Networks and related operational processes. You will work closely with our Networks and Infrastructure team to maintain and improve the effectiveness and efficiency of our networks.

As the first point of contact for RAN and O-RAN technical matters, you will be responsible for coordinating with our wider network and infrastructure team, as well as key vendors and 3rd party partners to ensure that capabilities and services are delivered to a consistently high level.

You will also be responsible for preparing and updating technical and operational documentation, ensuring they are kept up to date on our document management system. Additionally, you will take responsibility for the implementation and maintenance of systems and databases, ensuring they are compliant and accurate.

Key Responsibilities:
  • Extensive 4G/LTE, 5G RAN & O-RAN testing experience.
  • Solid working knowledge of 4/5G Radio Access Network technology.
  • Extensive recent experience in RAN & O-RAN system integration, testing and troubleshooting.
  • Strong end-to-end RAN knowledge with a focus on 4/5G.
  • RAN Technologies (vRAN, Small Cells, MIMO, Timing and Sync with GPS, PTP).
  • Understanding of Networking Protocols like IP, TCP, SCTP, IPSEC.
  • Understanding of 3GPP standards, including procedures, call flows, KPI, statistics.
  • End-to-end testing in all areas - IMS calls (eNodeB, MME, SGW, PCR, SBG, CSCF, MTAS).
  • Good understanding of Layer 2 & 3 messages, RRC/RLC Layers.
  • Analysing and diagnosing main RF Issues like Dropped calls, Blocked calls, Handover Failures, Interference, RACH failures, etc.
  • Good experience in analysing the Core Network elements issues.
  • Working knowledge or testing Nokia and Ericsson RAN.
Requirements:
  • SC clearance with no restrictions, or ability to obtain an SC clearance.
  • Ability to commute to the UKTL offices in Solihull, Birmingham with the possibility of hybrid working.

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