Packet Core Test Engineer - Slough
Reference Code: -en_GBContract Type:Fixed Term ContractProfessional Communities: Products & Systems Engineering
Your role
We are looking for Packet Core Test Engineer iwho will be responsible for assuring the quality, stability, and readiness of the containerized Packet Core for deployment into live service. The role involves testing, validating, and integrating new software releases and design changes, identifying and mitigating risks, and working closely with stakeholders and vendors to enable a smooth, reliable delivery into operations.
In this role you will play a key role in:
- Manage and support the acceptance and integration of software releases of Containerized Mobile Packet Core through the test cycle.
- Test Management, Risk Mitigation, Platform Validation and Stakeholder Communication
Your profile
- Experience in Integration and/or Test for Mobile Telecoms Packet Core platforms (2G, 3G, 4G, 5G) preferably Containerized (Docker, Kubernetes) and Cloud-native
- Comprehensive knowledge of Packet Core components and functionality (SGSN, MME, SGW, PGW, EPDG, DNS, AMF, SMF, UPF).
- Hands-on experience with testing, packet capture, and diagnostics tools: Wireshark, Infovista Ativa or equivalents
- Good understanding of Linux, Container, and Cloud-native technologies: Docker, Kubernetes, orchestration, and automation.
- Relevant technical qualifications or certifications: (e.g., degree in Engineering or related discipline, or certifications such as Cisco CCNA-SP or Juniper equivalents).
Proficiency in networking protocols and procedures:
- Core Signalling Protocols: GTPv1/v2, NGAP, Diameter, PFCP, SBI (including HTTP/2, REST/JSON, OpenAPI)
- Traffic and Transport: IP (IPv4/IPv6), UDP, TCP, SCTP, GRE
- Quality of Service and Policy: 5G QoS Flow, QFI, PCC (Policy and Charging Control), PCF, SMF, UPF policy enforcement
- Mobility and Session Procedures: Attach, Detach, Registration, Handover, Session Establishment, Modification, and Release (GTP, NGAP, PFCP messages)
- Security: IPsec, Encryption, Authentication, Security Associations, Certificates (TLS)
- Management and Orchestration: NETCONF, REST, YANG models, ETSI MANO, Kubernetes API, Docker, Container Network Interface (CNI)
- Other Supporting Protocols: DNS, DHCP, ARP, NTP, BGP, SFTP/FTP, SNMP
- Performance and Telemetry, Prometheus, Grafana, logging and tracing
If you're excited about this role but dont 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 platforms
- Active employee networks promoting diversity, equity and inclusion like OutFront, CapAbility or
Capgemini is proud to be a Disability Confident Employer (Level 2) under the UK Governments 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, and
- Meet the minimum essential criteria for the role.
- Please opt in during the application process.
Capgemini. Make it real.
Need to know
- All roles will require a level of security clearance; BPSS OR Security ClearanceOR Developed Vetting.
- Thisisfixedtermrolefor6months.Thisrolerequires3days/weekofficepresencebasedinSlough.
- 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 Capgemini
Capgemini 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.
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Packet Core Test Engineer - Slough employer: Capgemini
Capgemini is an excellent employer, offering a dynamic work culture that fosters collaboration and innovation in the heart of London. With a hybrid working model, employees enjoy the flexibility of blending office, client site, and home working, while also benefiting from extensive growth opportunities and professional development within the Capital Markets sector. Join us to be part of a team that values governance excellence and empowers you to make a meaningful impact in complex programme environments.
