Job Details

SS7 Tester - Remote Option

Creativity Software Ltd
Creativity Software Ltd
Kingston Upon Thames

We are looking for an SS7 Tester to join the technical team, to work in our London office or remotely.
The successful candidate will play a key role in our dynamic and award-winning technical team. You will be responsible for testing mission-critical systems that are delivered for mobile network operators, law enforcement and emergency service organisations worldwide.

Main Job Responsibilities:
- Ensure products and releases reach a high level of quality before they are delivered to the client
- Perform manual, automated and performance testing
- Write test plans and reports including UAT test plans
- Assist with UAT events

Expected minimum level of experience:
- Experience commensurate with ~5 years working for large telecom organisations, having followed structured testing methodologies
- Good understanding of GSM/UMTS/LTE network and 3GPP standards.
- Experience of SS7 (MAP and SCCP), Diameter signalling testing.
- Experience of OMA MLP
- Practical knowledge of automatic testing tool such as JMeter.
- Experience of Protocol Analyzer tools like tcpdump, snoop etc.
- Experience of writing test scripts (Bash, etc.) and writing simple SQL queries.
- Experience of exploratory testing.
- Good command of Linux.

Desired knowledge and skills:
- Experience of Core / Radio Network interface testing
- Experience of telecoms infrastructure with respect to that involved in location calculations e.g. GMLC, SMLC.
- Experience of performance testing
- Experience of testing SIP protocol
- Experience of 3GPP Rel 16/17 for 5G
- Experience of Cloud native architectures
- Experience of writing telecom test frameworks using CPPUnit/Google C++/TCLTk
- Very good skills documenting and organising the UAT deliverables
- Experience of (math) algorithm testing.

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