Senior NFT Test Engineer – Performance & Security (Remote)

Sanderson Government & Defence; City Of London; Hybrid; GBP 77,000 - 92,000; Part time

Benefits offered by this job

Remote work option

London onsite 2 days per month

Active SC Clearance

Job summary

Sanderson Government & Defence is seeking an experienced Non-Functional Test Engineer to own NFT strategy, tooling and delivery across a complex digital estate. You will perform performance, accessibility, security, resilience, and interoperability testing in an Agile environment, collaborating with delivery teams, specialists and suppliers to ensure quality releases.

The role demands hands-on testing expertise, strong automation focus with Playwright/WebdriverIO/Cypress, API testing via

Qualifications

• Strong experience delivering non-functional testing within complex Agile environments.
• Expertise in JavaScript-based automation frameworks including Playwright, WebdriverIO and Cypress.
• Experience testing APIs using open-source JavaScript frameworks/libraries or Postman.
• Performance and load testing expertise using JMeter or K6.
• CI/CD pipelines using Jenkins, AWS and/or Azure DevOps; GitHub version control.

Responsibilities

• Evaluate and recommend testing tools, frameworks, and practices across the DEFRA testing community.
• Plan, build and execute non-functional testing activities.
• Deliver testing across performance, accessibility, security, resilience and interoperability requirements.
• Interpret test results and communicate business and user impact to stakeholders.
• Ensure sufficient NFT evidence is produced to support release decisions.
• Work with specialist teams and third-party suppliers to deliver test coverage.
• Apply exploratory testing techniques to risk areas and high business value.
• Support continuous improvement of testing practices and automation capability and test strategy.

Skills

Non-functional testing

Playwright

WebdriverIO

Cypress

API testing

Postman

Performance testing

Load testing

Jenkins

AWS

Azure DevOps

GitHub

Exploratory testing

Risk-based testing

Stakeholder communication

Tools

Playwright

WebdriverIO

Cypress

Postman

JMeter

K6

Jenkins

AWS

Azure DevOps

GitHub

Job description

Sanderson Government & Defence is seeking an experienced Non-Functional Test Engineer to own NFT strategy, tooling and delivery across a complex digital estate. You will perform performance, accessibility, security, resilience, and interoperability testing in an Agile environment, collaborating with delivery teams, specialists and suppliers to ensure quality releases.

The role demands hands-on testing expertise, strong automation focus with Playwright/WebdriverIO/Cypress, API testing via