Senior Test Engineer

Sepura plc.; Cambridge; On-site; GBP 40,000 - 60,000; Full time

Job summary

A communications technology company in Cambridge seeks a Senior Test Engineer responsible for ensuring quality in communication products. You will design and execute tests, collaborating closely with development teams. Applicants should possess a relevant degree and extensive testing experience, preferably in embedded systems. A clean driving licence and valid passport are required for international travel. The successful candidate will work in a supportive team environment and contribute to product excellence.

Benefits

Travel expenses covered

Qualifications

• 3 years of residency required for security check.
• ISTQB certification preferred but not mandatory.

Responsibilities

• Writing and executing functional, regression, system, and performance testing.
• Testing software solutions to ensure compliance and defect-free products.
• Involvement in test planning, execution, defect tracking, and reporting.
• Mentoring junior test engineers.

Skills

Strong communication skills

Technical understanding

Experience in manual and automation testing

Problem-solving skills

Attention to detail

Education

Bachelor’s or Master’s degree in computer science, electronics, telecommunications, or a related field

Tools

Python

Selenium

JIRA

TestRail

Job description

As a Senior Test Engineer, you will be responsible for ensuring the quality and reliability of Sepura communication products. You will play a key role in designing, executing, and maintaining test across both manual and automated test frameworks on new and legacy platforms. You will work closely with Development, Conformance, and Business Support teams to enhance product quality and efficiency.

Responsibilities

• Writing and executing functional, regression, system, and performance testing to ensure product compliance with industry standards.
• Testing software solutions and applications to ensure that the developed products meet the requirements and are free of defects.
• Reading and understanding requirements documentation provided by a Product Definition Team, Product Strategy Team, or external test house.
• Involvement in test planning, test execution, defect tracking, and reporting to stakeholders.
• Producing and maintaining appropriate documentation for tracking quality metrics.
• Developing and executing manual and automated test cases for Sepura’s LTE and TETRA products.
• Designing and maintaining test automation frameworks, tools, and scripts to improve efficiency and coverage.
• Collaborating with software, hardware, and system engineers to identify defects, reproduce issues, and drive resolutions.
• Ensuring test environments, test equipment, and infrastructure are maintained and available for testing.
• Participating in design and requirements reviews to provide testability feedback.
• Mentoring junior test engineers and contributing to the growth of the test team.

Travel and Security

This job involves some international travelling, so the successful applicant must have a full, clean driving licence, own car, and valid passport. Travel expenses will be paid. The role may require a security clearance in the future.

Qualifications & Certifications

• Bachelor’s or Master’s degree in computer science, electronics, telecommunications, or a related field.
• 3 years of UK residency required for security check.
• ISTQB certification (preferred but not mandatory).

Experience and Skills

• A high level of communication skills and technical understanding.
• Solid experience in manual and automation testing, preferably in embedded systems, telecommunications, or mission‑critical applications.
• Experience with manual testing methodologies for embedded software and hardware products.
• Familiarity with TETRA and LTE technologies is highly desirable.
• Excellent problem‑solving skills, attention to detail, and ability to work in an agile environment.
• Ability to deliver critical feedback without damaging relationships.

Technical Skills

• Strong knowledge of test automation tools (e.g., Python, Selenium, Robot Framework, Appium).
• Knowledge of protocol testing, RF testing, and communication interfaces (e.g., TCP/IP, UDP, Serial, Bluetooth).
• Strong experience with Test Management tools (e.g., JIRA, TestRail, Zephyr).
• Hands‑on experience with testing frameworks and tools (e.g., Selenium, JUnit, TestNG, Cypress, Postman, JMeter).
• Understanding of APIs and backend testing.
• Knowledge of version control systems (e.g., Git).
• Experience with 4G/5G networks.