Live Network Regression Testing

Leading European Telco Operator

A leading European Telco Operator wanted to perform regression testing after SW (Software) upgrades or parameter changes within the live network. The testing needed to be done during an overnight maintenance window to minimize customer impact. 

 

 

The Challenge

The scope of the operator’s existing regression testing included 10-20 functional use cases, which each required about two hours for manual test case execution–all during the overnight maintenance window. These parameters were very challenging because testing often could not begin until 3 AM, and engineers were quite fatigued.

Furthermore, the two-hour maintenance window left little time for detailed verification. Engineers could perform only quick verifications for the operations department to get the current status of the live network after SW upgrades or other maintenance work.

 

 

The Solution

Live Network Regression Testing for Network Operations

SEGRON focused on the integration of 50 functional test cases, which were optimized for very quick execution. The selected test cases were analyzed together with the operations department to cover the most critical functions after an SW upgrade or maintenance work.

SEGRON further developed a two-stage testing campaign: the “quick verification” where the engineer was still on site, and another “detailed verification” that started after the night work when the engineer left the site. The next morning, engineers could check the  detailed verification report to get an immediate overview of any possible customer impact.

The automatic execution of these 50 Test Cases requires only 60 minutes

So the engineering team can execute three times the test cases in half of the time to get a quick overview of the network status after software updates or other network changes.

 

 

The Result

Implementing SEGRON ATF resulted in a much more efficient process for the network operations engineering team, who no longer have to spend time on manual service verification during overnight shifts. Engineers can now spend that time running more detailed verification test cases. As a result, end customers enjoy better quality service. 

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TECHNICAL PROJECT MANAGER

You will be a part of the SEGRON Project Team. This will be an amazing opportunity for someone to be part of a team working in next generation cutting edge technologies such as 5G, IOT, DevOps, CI/CD and test automation.

As technical project manager, you will be responsible for understanding the different customer requirements and latest technologies around 5G, VoLTE use cases and you have to setup and align related project activities together with our customers.
You should have a strong knowledge and background in the telco environment paired with project management skills to align projects, track the related KPI’s further having a strong view also on the financial performance.

Soft Skills:
Problem Solving skills:
• Analytical & technical mindset
• Good in abstraction i.e. seeing the “big picture”
• Self-Motivated & Responsible
Team player:
• collaborates with others
• teach new skills to others and write tutorials
Others:
• Good Communication Skills
• Flexible/Entrepreneurial

Hard Skills:
• Several years of experience in Telecom Domain.
• Good expertise on 5G/4G/3G technologies and should be familiar with the network call flows
• IMS/SDM/EPC domain knowledge
• Wireshark packet analysis
• Experience in Protocol testing including HTTP2, SIP, MAP, Diameter.
• Sound understanding of Telco Cloud technologies such as VNFI, Open Stack.
• Sound knowledge in Linux/CentOS, TCP/IP stack
• DevOps knowledge.

Nice to have skills:
• Understanding of 5G network elements and interfaces is plus.
• Robot Framework / Python

Specific additional information:
• You have a Telecommunications/Electronics/SW/Computer master’s degree or equivalent through experience
• PM Certification or equivalent through experience
• Very high English proficient

Others:
• Full time job
• Variety of financial and non-financial benefits
• Offered salary: from 2500 EUR (depends on experience)

DEVELOPER TEST AUTOMATION

You will be a part of the SEGRON Test Automation Development Team. This will be an amazing opportunity for someone to be part of a team working in next generation cutting edge technologies such as 5G, IOT, DevOps, CI/CD and test automation using Python, Robot.

As test automation developer, you will be responsible for understanding the different customer requirements and latest technologies around 5G, VoLTE use cases, building automation tools, framework, creating reusable python libraries for test automation.
You should have a strong knowledge and hands-on experience in test automation framework (Robot) and Python scripting language. Further you must continuously renew the automation & review guidelines set within the team. Ensure developed reusable keywords & test scripts meet the automation guideline.

Soft Skills:
Problem Solving skills:
• Analytical & technical mindset
• Good in abstraction i.e. seeing the “big picture”
• Self-Motivated & Responsible 


Team player:
• collaborates with others
• teach new skills to others and write tutorials


Others:
• Good Communication Skills
• Flexible/Entrepreneurial

Hard Skills:
• Experience in developing reusable test automation scripts using Python and Robot Framework
• Several years of experience in Telecom Domain
• Good expertise on 5G/4G/3G technologies and should be familiar with the network call flows
• Test Case development
• Mobile development
• Design Patterns
• Web development/testing
• IMS/SDM/EPC domain knowledge
• Hand-on experience in Docker containers and Kubernetes.
• Sound understanding of Telco Cloud technologies such as VNFI, Open Stack
• Sound knowledge in Linux/CentOS, TCP/IP stack
• DevOps knowledge

Nice to have skills:
• Understanding of 5G network elements and interfaces is plus
• Wireshark packet analysis
• Experience in Protocol testing including HTTP2, SIP, MAP, Diameter

Specific additional information:
• You have a Telecommunications/Electronics/SW/Computer master’s degree or equivalent through experience
• Very high English proficient

Others:
• Full time job
• Variety of financial and non-financial benefits
• Offered salary: from 2000 EUR (depends on experience)