Network Test Analyst

Capgemini; Abingdon; On-site; GBP 40,000 - 65,000; Full time

Job summary

Capgemini is seeking a Network Test Analyst - OCS to support requirements analysis, test planning, test scheduling, and test execution. The role involves conducting failure analysis, managing defects, and providing comprehensive test reports to customers.

The candidate will work onsite in Newbury, with strong knowledge of SIP, Diameter and 5G SA call flows, plus hands-on experience in CS/IMS. OpenText ALM and Wireshark are valued assets.

Qualifications

• Experience analysing requirements and defining test strategies for telecom networks.
• Hands-on testing in CS/IMS environments and 5G SA call flows.
• Knowledge of charging systems and related interfaces is preferred.

Responsibilities

• Support requirements analysis, test planning, test scheduling and test execution.
• Perform failure analysis, defect management and provide comprehensive test reports.
• Issue reproduction, verification and validation of fixes.
• Contribute to test automation and use tools like Wireshark for debugging.

Skills

2G/4G/5G SA

OCS testing

SIP

Diameter

Core Network

VoNR/VoLTE/VoWiFi

CDR/AMA

Wireshark

NCC OCS

Linux shell scripting

Python scripting

Tools

OpenText ALM

Job description

Your roleCapgemini is seeking a Network Test Analyst - OCS to support requirements analysis, test planning, test scheduling, and test execution. The role involves conducting failure analysis, managing defects, and providing comprehensive test reports to customers.Your profileMandatory Skills :Strong Knowledge on 2G, 4G and 5G SA technologies.Working knowledge in Charging systems - OCS, 5g-CHF, 5g-CCS (NCC experience preferred)Working knowledge with interfaces related to Charging components - Diameter GY/GX/SY, N40/N7/N28, SIP, etc.Working knowledge in Core Network – Voice and Data CoreWorking knowledge in Core network elements - MSC, MGW, HLR, HSS, SBC, IMS (TAS and CSCF), UDM, AMF, SMF, PCF, CCS, PCC and PCG, CDR and AMA Specification.Strong protocol knowledge in SIP, Diameter, RTP, MEGACO, HTTP, GSM MAP and SS7/SIGTRAN.Hands-on experience in CS, IMS (VoNR/VoLTE/VoWiFi) and 5G SA call flows.Responsible for issue reproduction , Verification and Validation of fix provided.Preferred Skills:Basic knowledge in IP and Network provisioning systems.Troubleshooting and debugging skills using tools like WiresharkHands-on experience with Nokia NCC OCS, Surepay OCS and CDR and AMA SpecificationKnowledge in Ericsson nodesQuality Management Tools: OpenText ALM.Linux shell scripting, Python scripting.If you're excited about this role but don’t meet every requirement, we still encourage you to apply, your unique experience could be just what we need.Make it real - what does it mean for you?Open access to digital learning platformsActive employee networks promoting diversity, equity and inclusion like OutFront, CapAbility or Women@CapgeminiCapgemini is proud to be a Disability Confident Employer (Level 2) under the UK Government’s Disability Confident scheme. As part of our commitment to inclusive recruitment, we will offer an interview to all candidates who:Declare they have a disability, andMeet the minimum essential criteria for the role.Please opt in during the application process.Capgemini. Make it real.Need to knowAll roles will require a level of security clearance; BPSS OR Security ClearanceOR Developed Vetting.This is an onsite role requires 5 days/week office presence based in Newbury.You can bring your whole self to work. At Capgemini building an inclusivefuture is part of everyday life and will be part of your working reality. We havebuilt a representative and welcoming environment, for everyone.About CapgeminiCapgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organisations and make it real with AI, technology and people. With our strong heritage of nearly 60 years, we are a responsible and diverse group of over 420,000 team members in more than 50 countries. We deliver end-to-end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations. The Group reported 2025 global revenues of €22.5 billion.Make it real | www.capgemini.com