Solution Services E2E Tester (IMS / PaCO / SDM) | MLR Associates Ltd | Remote (Europe)

MLR Associates Ltd; United States; Remote; USD 79,000 - 113,000; Full time

Job summary

MLR Associates Ltd is seeking an experienced Solution Services E2E Tester for a remote contract (Europe location mandatory). You will own end-to-end testing across IMS, PaCO, SDM, and 5G Core, performing protocol testing (HTTP2, SIP, MAP, Diameter) and Wireshark log analysis. Cloud-native CNF/VNF validation on Kubernetes and Docker is required.

You will collaborate with cross-functional teams, design test scenarios, and document results while adhering to telecom standards and project timelines.

Qualifications

• Bachelor's degree or engineering discipline in a related technical field.
• 3+ years hands-on testing in IMS/SDM/PaCO or 5G Core domains.
• Strong knowledge of 2G/3G/4G/5G architectures and core network interfaces.
• Proficiency in protocol testing of HTTP2, SIP, MAP, Diameter.
• Experience with cloud, virtualization, VNF/CNF deployments on Kubernetes and Docker.
• Wireshark-based packet capture analysis and log debugging capabilities.
• Python scripting for test automation and log parsing.
• Excellent written/verbal communication; residency in Europe is required for remote work.

Responsibilities

• Design test scenarios and run end-to-end tests for IMS, PaCO, SDM, and 5G Core networks.
• Execute protocol test suites across HTTP2, SIP, MAP, Diameter in virtualized telecom environments.
• Analyze Wireshark captures and perform deep-dive log analysis to troubleshoot issues.
• Validate CNF/VNF deployments on Kubernetes and Docker platforms.
• Collaborate with engineers to ensure high-quality software deliveries and clear defect tracking.
• Develop understanding of test environments, call flows, and system functionality.

Skills

IMS domain knowledge

PaCO knowledge

SDM knowledge

5G Core knowledge

HTTP2 protocol testing

SIP protocol testing

MAP protocol testing

Diameter protocol testing

Wireshark analysis

Kubernetes

Docker

Python for test automation

Communication skills

Residency in Europe

Education

Bachelor's degree in Computer Science or Telecommunications

Tools

Kubernetes

Docker

Wireshark

Job description

Position Summary:

MLR Associates Ltd is actively seeking an experienced, highly technical, and analytical Solution Services End-to-End (E2E) Tester with strong domain knowledge in IMS, PaCO, SDM, and 5G Core networks to join our testing operations on a remote contract basis (Europe location mandatory). In this critical telecom testing and quality assurance role, you will be responsible for supporting end-to-end testing activities within advanced telecommunications environments, ensuring flawless protocol interoperability and high-quality solution deliveries. You will leverage your deep practical expertise in packet core protocols, protocol testing (HTTP2, SIP, MAP, Diameter), Wireshark packet analysis, and cloud-native container deployments (Kubernetes, Docker) to validate complex signaling paths. This opportunity requires an agile testing professional with robust troubleshooting skills and the ability to collaborate seamlessly across cross-functional engineering teams.

Detailed Job Description:

As a Solution Services E2E Tester at MLR Associates Ltd, you will take full technical ownership of end-to-end test execution, protocol verification, signaling analysis, and defect troubleshooting across IMS, Packet Core (PaCO), Subscriber Data Management (SDM), and 5G Core architectures. Your day-to-day responsibilities include designing test scenarios, executing protocol test suites (HTTP2, SIP, MAP, Diameter), analyzing Wireshark packet captures for deep-dive log analysis, and validating VNF deployments across Kubernetes and Docker cloud platforms. You will collaborate closely with system integration engineers, develop a thorough understanding of test environment topologies and functionality, and ensure uncompromised software delivery quality across distributed telecom networks.

Key Responsibilities:

• Execute comprehensive end-to-end (E2E) testing activities for IMS, PaCO (Packet Core), SDM, and 5G Core network solutions.
• Perform rigorous protocol testing across HTTP2, SIP, MAP, Diameter, and signaling interfaces in virtualized telecom environments.
• Conduct advanced packet capture analysis and log troubleshooting utilizing Wireshark tools to isolate root-cause network anomalies.
• Validate cloud-native network functions (CNFs) and virtualized network functions (VNFs) deployed on Kubernetes and Docker platforms.
• Collaborate effectively with cross-functional engineering and development teams to ensure high-quality software deliveries.
• Develop and maintain a thorough technical understanding of test environment architectures, call flows, and system functionality.
• Document test results, track defect lifecycles, and provide detailed diagnostic reports to stakeholders.
• Ensure strict adherence to telecommunications testing standards, quality benchmarks, and project delivery timelines.

Required Qualifications & Skills:

• Bachelor's degree in Computer Science, Telecommunications Engineering, Electrical Engineering, or a related technical discipline.
• Minimum of 3+ years of professional hands-on testing experience within the IMS, SDM, PaCO, or 5G Core domain.
• Expert working knowledge of 2G, 3G, 4G LTE, and 5G network architectures, signaling call flows, and core network interfaces.
• Practical expertise in protocol testing covering HTTP2, SIP, MAP, and Diameter signaling protocols.
• Hands-on experience testing cloud, virtualization, and VNF/CNF deployments utilizing Kubernetes and Docker container platforms.
• Proficiency in packet analysis, log debugging, and network troubleshooting using Wireshark tools.
• Strong programming/scripting familiarity in Python for test automation and log parsing tasks.
• Excellent written and verbal communication, training capabilities, and mandatory residency in Europe for remote work.

Nice-to-Have Skills:

• Advanced professional certifications in 5G core architecture, cloud computing, or ISTQB software testing.
• Prior working experience with major telecom equipment vendors (Ericsson, Nokia, Huawei) core testing suites.
• Experience with CI/CD pipeline integration, automated regression testing frameworks, and Git version control.
• Familiarity with cloud platforms such as AWS, Azure, or OpenStack for telecom workload deployments.
• Strong stakeholder management and technical mentoring aptitude.

Application Information:

• Recruiter: Mike Glover (Director | Telecoms at MLR Associates Ltd)
• Contact Name: Mike Glover
• Email: [e-mail]
• Phone:
• Application URL:
• Salary/Rate: Market Competitive / Standard Contract Rate
• Deadline: Open until filled
• Notice Period: Immediate to 30 Days
• Contract Duration: Contract / Remote (Europe Located Mandatory)

Recruitment Pro Tip:

When applying for this E2E Tester position via MLR Associates, ensure your CV explicitly highlights your IMS/5G Core domain experience, Wireshark log analysis expertise, and protocol testing proficiency (SIP/Diameter/HTTP2).