Manual Test Engineer - Telecom

We are looking for a Telecom Test Engineer with experience in the Mobile Data Core domain to join our testing and validation team. In this role you will play a key role in:Validating 4G LTE EPC and 5G Core network functionsEnsuring end-to-end functionality, performance, interoperability, and reliability of packet core solutionsDesigning and executing test cases, analyzing network protocols, troubleshooting issuesCollaborating with development, system integration, and operations teams.

Required Qualifications and ExperienceBachelor's degree in Electronics & Communication Engineering, Telecommunications, Computer Science, Information Technology, or a related field.3–8 years of experience in Telecom Testing with a focus on Data Core networks.Strong understanding of LTE EPC and 5G Core architecture.Preferred Technical Skills

Traffic generation tools such as Spirent, Jmeter.Test automation using Python, Robot Framework, PyTest, or Shell scripting.Linux/Unix administration, SQL and basic database knowledge.Docker and Kubernetes, OpenShift or VMware virtualization platforms.CI/CD tools such as Jenkins, GitLab CI, or GitHub Actions.API testing using Postman or REST clients.Familiarity with Prometheus, Grafana, and ELK for monitoring and log analysis, virtualization and cloud-native telecom environments.Strong understanding of LTE EPC and 5G Core architecture.Good understanding of mobility procedures, bearer

management, QoS, roaming, and subscriber lifecycle management.Desired Knowledge3GPP specifications for LTE and 5G Core, Network slicing, Service-Based Architecture (SBA).VoLTE and VoNR call flows, Charging functions (OCS/CHF), Policy control (PCRF/PCF).Security and authentication procedures (AKA, EAP-AKA').

Roaming and interworking scenarios. High Availability (HA) and Disaster Recovery (DR) testing.Preferred Certifications5G Core or LTE Certification.ISTQB Foundation Level.Red Hat Certified System Administrator (RHCSA).Kubernetes Certified Application Developer (CKAD) or Certified Kubernetes Administrator (CKA) (preferred).AWS, Azure, or Google Cloud certifications (preferred).

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, and Meet 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;

Security ClearanceOR Developed Vetting. This is fixed term role for 3-6 months. This role requires 3 days/week office presence based in Reading.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