E2E Telecom Core Tester — IMS, PaCO, SDM & 5G Core

Capgemini Engineering; Lisboa; On-site; EUR 40,000 - 60,000; Full time

Benefits offered by this job

Health and life insurance

Referral program with bonuses

Great office locations

Job summary

Capgemini Engineering is seeking an E2E Tester to validate end-to-end solutions in Telecom Core Network environments, focusing on IMS, PaCO, SDM, and 5G Core domains.

You will execute manual testing, troubleshoot issues, and manage defects with JIRA and QC/ALM while aligning with development and operations teams to ensure high-quality delivery.

Qualifications

• Bachelors degree in CS/telecom or related field.
• At least 3 years in telecom core network testing.
• Experience with IMS/5G Core and protocol testing.

Responsibilities

• Execute end-to-end manual testing across IMS, PaCO, SDM, and 5G Core.
• Troubleshoot and perform root cause analysis of network issues.
• Log and manage defects using JIRA and QC/ALM; report status to stakeholders.
• Develop and maintain test cases from project requirements.
• Analyze logs, traces and traffic to diagnose problems.
• Collaborate with cross-functional teams to ensure delivery quality.

Skills

End-to-end testing

Analytical mindset

Team collaboration

English fluency

Education

Bachelor's degree in Computer Science or Telecommunications

Tools

JIRA

QC/ALM

Wireshark

Docker

Python

Job description

At Capgemini Engineering, the world leader in engineering services, we bring together a global team of engineers, scientists, and architects to help the world’s most innovative companies unleash their potential. From autonomous cars to life-saving robots, our digital and software technology experts think outside the box as they provide unique R&D and engineering services across all industries. Join us for a career full of opportunities. Where you can make a difference. Where no two days are the same.

YOUR ROLE

As an E2E Tester, you will be responsible for validating end-to-end solutions within Telecom Core Network environments, with a particular focus on IMS, PaCO, SDM, and 5G Core domains. You will play a key role in ensuring service quality through comprehensive testing, defect management, troubleshooting, and close collaboration with technical teams and stakeholders.

Your key responsibilities will include:

• Executing end-to-end manual testing activities across IMS, PaCO, SDM, and 5G Core platforms.
• Performing troubleshooting and root cause analysis of network and service issues.
• Conducting failure investigations and reporting defects using tools such as JIRA and Quality Center (QC).
• Developing a strong understanding of the test environment, system functionality, and business requirements.
• Creating and maintaining test cases based on project requirements.
• Logging, tracking, and managing defects throughout the testing lifecycle.
• Producing defect status reports and providing regular updates to stakeholders.
• Supporting defect resolution activities in collaboration with development, integration, and operations teams.
• Analyzing logs, traces, and network traffic to identify and resolve issues efficiently.
• Working closely with cross-functional teams to ensure successful test execution and delivery quality.

YOUR PROFILE

• Bachelor's degree in Computer Science, Telecommunications, Engineering, or a related field.
• Minimum 3 years of experience in Telecom Core Network testing within IMS, SDM, PaCO, and/or 5G Core domains.
• Strong knowledge of 2G, 3G, 4G, and 5G network architectures, procedures, and call flows.Hands-on experience with telecom protocol testing, including:
• HTTP2
• SIP
• MAP
• Diameter
• Solid troubleshooting, debugging, and root cause analysis capabilities.
• Experience using Wireshark for packet capture and log analysis.Knowledge of cloud-native and virtualization technologies, including:
• Docker
• Python scripting
• Experience with defect management and test tracking tools such as JIRA and QC/ALM.
• Strong analytical mindset with attention to detail and quality.Excellent communication and collaboration skills.
• Ability to work effectively with multiple stakeholders and distributed teams.Fluent English communication skills, both written and spoken.

WHAT YOU’LL LOVE ABOUT WORKING HERE

• Join a multicultural and inclusive team environment.
• Enjoy a supportive atmosphere promoting work life balance.
• Your career growth is central to our mission. Our array of career growth programs and diverse professionals are crafted to support you in exploring a world of opportunities.
• Access valuable training and certifications in cutting edge technologies.
• Engage in exciting national and international projects.
• Health and life insurance.
• Referral program with bonuses for talent recommendations.
• Great office locations.

ABOUT CAPGEMINI

Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organizations 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 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.