Making brighter cities

Principal Test Engineer – Team Lead- SW020

A truly exciting opportunity to transform and lead our System Test capability, including people, processes, tools, and partners, to ensure product releases are delivered efficiently, on time, while meeting the high level of quality expected by our customers. Be a key member of the Development management team.

The Principal Test Engineer – Team Lead will be responsible for testing the full Telensa solution, including devices, networks, databases, and web applications.  They will ensure that there is full test traceability back to the system level requirements, including regression testing of existing functionality, verification and validation of new functionality, as well as non-functional testing.  The System Test team is also responsible for replicating customer issues under test conditions.

The Principal Test Engineer – Team Lead is responsible for the seamless handover of product releases from Development into Operations, making sure that the product is ready to be deployed at scale into customer environments, and is supported by the necessary release documentation.


Key Accountabilities and Role Outputs:

  • Manage team of Test engineers at various levels from in scrum testing to hardening test cycles
  • Develop and manage test environments that are representative of the various customer deployments
  • Design and Implement Test Architecture to maximise the coverage and efficiency of testing
  • Drive Automation initiatives
  • Ensure all phases of testing from in scrum testing to hardening are documented to reduce repetition.
  • Define, source, set up and maintain Lab equipment
  • Work with Development and Product to understand the requirement and develop test cases
  • Support estimating and planning activities for new features / releases
  • Ensure traceability of test cases to system requirements
  • Manage and participate in the execution of system testing 
  • Monitor, control and report test results
  • Analyse and report test failures to Development
  • Ensure that the released system meets the agreed specification within the agreed quality
  • Complete release notes, handover documentation to Operations, and lead Release Gate Review meeting
  • Support resolution of customer issues by replicating and investigating issues under test conditions
  • Facilitate close cooperation between System Test, Development, Quality, and Operations to drive continuous improvement in the quality of system releases


  • A minimum of 5 years leading a system test team, with proven strong team leadership skills
  • Proactive with a can-do attitude and a proven track record of taking ownership and delivering on schedule
  • Experience of transforming test teams and delivering fit for purpose and efficiently scaled team.
  • Proven experience of mentoring and maintaining high performing test teams.
  • Structured and detailed in their approach to the role
  • Experience of testing complex systems including wireless devices and networks, databases, web applications, and Linux platforms
  • Good system level knowledge and development experience of wireless communication systems and how they are specified and tested.
  • Ability to learn new technologies quickly to react to changing demands/priorities
  • Experience of the “full lifecycle” of system development: specification; architecture, design, documentation, coding, testing, but especially the specification and testing stages.
  • Excellent collaborative skills and experience of working cross-functionally
  • Solid problem solving, decision making and analytical capabilities


  • Knowledge of Internet of Things/(IoT) and Smart City applications
  • Experience of wide area networks such as cellular or LPWA
  • Testing mobile applications on Android
  • Familiarity with ITIL Release and Change processes
  • 2.1 degree in a numerate / computer science related subject (or equivalent experience)

Location: Cambridge, UK

Application process

To apply for our open positions, or if you’d like to apply for general consideration, please send your CV to

Contact Telensa

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