Test Automation Engineer - ADS Platform

Are you passionate about software quality and automation? Would you like to help build secure systems for important communications? We are looking for a Test Automation Engineer to join our ADS Platform team.

In our development team, we work together to build secure and reliable solutions that help our customers communicate safely. We are now looking for a Test Automation Engineer to join our team in Reading, Berkshire. This role offers hybrid working.

About the job

As a Test Automation Engineer, you will work closely with developers, product managers, and operations teams. Your main job will be to develop and support automated tests and the infrastructure for our application suite, which monitors and manages IoT devices. Your responsibilities will include:

• Designing, building, and maintaining automated test frameworks for Windows services, APIs, and web-based UIs.
• Developing automated regression and integration test suites.
• Making sure automation code is scalable and easy to maintain.
• Validating how Windows services interact with hardware terminals.
• Testing end-to-end workflows across services, APIs, and web interfaces.
• Creating automated tests for API integrations with external platforms.
• Working with others to define test strategies.
• Writing clear and reusable test cases.
• Monitoring test runs, analysing failures, and helping to find root causes.
• Promoting automation best practices and improving QA processes.
• Modifying and maintaining CI/CD pipelines for automated test execution.
• Implementing test reporting and metrics to track quality trends.

About you

• Around 2–3 years of experience in manual and automated software testing.
• Experience with Windows applications and services.
• Good knowledge of testing methodologies and tools (such as Gherkin, Specflow, Selenium, or Cypress).
• Experience with automated testing frameworks and tools (Selenium, Cypress, MSTest, NUnit, XUnit, Moq, Microsoft Fakes, etc.).
• Understanding of different software testing types (unit, integration, system, regression, performance, smoke, chaos, etc.).
• Excellent writing skills for clear and detailed test specifications.
• Good communication and teamwork skills.
• Familiarity with Agile methods and CI/CD practices.

Desirable Skills

• Testing hardware-in-the-loop systems or software-hardware integrations.
• Network protocols, TCP/IP, and security.
• Performance or load testing tools (JMeter, k6).
• Containerisation (Docker) and virtualisation (Proxmox, Terraform, Ansible).

We offer
Our employees are our greatest asset. It is of great importance to us that we build a culture where our employees thrive. You will be part of a motivated team in an international company. In addition, we offer:

• Competitive salary
• Private medical insurance
• Group Life Assurance
• Group Income Protection
• Contribution to our Company pension scheme.
• 25 days annual leave plus UK bank holidays

We're all change makers!
If you want to work for a company that lets you be yourself and have fun at work, where your work helps make the world safer and smarter, AddSecure could be the place for you. Join our international team and make a real difference every day.

Would you like to join us? Please apply by sending your CV and answering a few questions. We look forward to your application.

We use competence-based recruitment, including tests, interviews, and references. Candidates are assessed with Alva Lab’s methods. We carry out background checks, and you must be eligible to work in the UK.

AddSecure is a leading European provider of secure IoT connectivity and end-to-end solutions. We help customers optimise their operations, drive business value, and secure vital functions. Our business unit Smart Alarms offers secure solutions for monitored alarm transmission as well as reliable crisis communication solutions that help organisations and rescue teams to prevent and respond to an emergency.

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