Manual Test Engineer – Telecom

Jobtailor

Reading

On-site

GBP 55,000 - 75,000

Full time

14 days+

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Job summary

Jobtailor in Reading, United Kingdom, is seeking a Telecom Test Engineer to validate 4G LTE EPC and 5G Core network functions, ensuring end-to-end performance, interoperability, and reliability of packet core solutions. You will design and execute test cases, analyze network protocols, and troubleshoot issues in collaboration with development, system integration, and operations teams.

The ideal candidate has a bachelor’s degree in electronics or related field, 3–8 years in telecom testing,

Qualifications

Bachelor's degree in Electronics & Communication Engineering or related fields.
5G Core or LTE certification preferred.
Experience in Telecom Testing focusing on Data Core networks.
Familiarity with 3GPP specs and SBA.
Experience with test automation and scripting.

Responsibilities

Validating 4G LTE EPC and 5G Core network functions.
Ensuring end-to-end functionality, performance, interoperability, and reliability of packet core solutions.
Designing and executing test cases, analyzing network protocols, troubleshooting issues.
Collaborating with development, system integration, and operations teams.

Skills

Test Automation

Network Protocol Analysis

Linux/Unix Administration

SQL

API Testing

High Availability Testing

Disaster Recovery Testing

Mobility Procedures

Bearer Management

QoS

Education

Bachelor's Degree in Electronics & Communication Engineering

5G Core or LTE Certification

ISTQB Foundation Level

Red Hat Certified System Administrator (RHCSA)

Kubernetes Certified Application Developer (CKAD)

Certified Kubernetes Administrator (CKA)

AWS Certification

Azure Certification

Google Cloud Certification

Tools

Spirent

Jmeter

Robot Framework

PyTest

Docker

Kubernetes

OpenShift

Jenkins

GitLab CI

Postman

Job description

• Validating 4G LTE EPC and 5G Core network functions
• Ensuring end-to-end functionality, performance, interoperability, and reliability of packet core solutions
• Designing and executing test cases, analyzing network protocols, troubleshooting issues
• Collaborating with development, system integration, and operations teams.

Requirements

Bachelor'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.
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.
Good understanding of mobility procedures, bearer management, QoS, roaming, and subscriber lifecycle management.
3GPP 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.
5G 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).

Core Competencies

Demonstrates expertise in Telecom Testing with a strong focus on 4G LTE EPC and 5G Core network functions, ensuring performance, interoperability, and reliability of packet core solutions. Proficient in test automation, network protocol analysis, and collaboration with cross-functional teams.

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