Job Details

SS7 Tester

Creativity Software Ltd
Creativity Software Ltd
Kingston Upon Thames
We’re looking for a SS7 Tester to join the technical team in our London office.

The successful candidate will play a key role in our dynamic and award-winning technical team. You’ll 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 experience:

Educated to 2:1 degree standard. (Maths or highly numerate subject qualifications would be advantageous)
Experience commensurate with ~3 years working for large telecom organisations, having followed structured testing methodologies
Good understanding of GSM/UMTS/LTE network and 3GPP standards.
Experience of SS7 / Sigtran (MAP and SCCP) 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.
The following knowledge and experience is desirable:

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
Good command of Linux.
Experience of testing Diameter (LTE) protocols
Experience of assisting with User Acceptance Testing (UAT) for external clients
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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