Non-Functional Test Engineer - Public Sector

IBM; City of Westminster; Hybrid; GBP 70,000 - 95,000; Full time

Job summary

IBM Consulting UK FutureNow seeks a Senior Full Stack Quality Engineer to lead end-to-end validation during major migrations. You will craft test strategies, build scalable automation across UI, API, and services, and integrate tests into CI/CD pipelines to ensure continuous quality.

Collaboration with architects, developers, and DevOps is essential. You will guide quality practices in a complex, multi-supplier environment, mentor engineers, and deliver reusable automation assets to accelerate

Qualifications

• Experience designing automation across UI, API, services, and integration layers.
• Proven ability to build scalable full-stack automation frameworks.
• Strong knowledge of test modelling and scenario design.
• Hands-on experience with CI/CD integration and multi-supplier environments.

Responsibilities

• Define test approaches and quality strategies for large migration initiatives.
• Build and maintain full-stack automation frameworks covering UI, API, services, microservices, containers, and integrations.
• Create test artefacts including test plans, test scenarios, test scripts, and test data models.
• Automate end-to-end test execution and integrate tests into CI/CD pipelines for continuous quality checks.
• Develop reusable automation assets to support functional and regression testing.
• Execute manual and automated tests to validate application behaviour during migration.
• Collaborate with developers, architects, and DevOps teams to troubleshoot issues and ensure product readiness.
• Analyse defects, perform root cause analysis, and drive continuous quality improvement.

Skills

Java

JavaScript/TypeScript

Python

C#

Selenium

Playwright

CI/CD

Microservices

REST APIs

Education

Bachelor's degree in Computer Science

Tools

GitHub

GitLab

Jenkins

Azure DevOps

Docker

Job description

The Full Stack Quality Engineer will support the comprehensive testing and assurance of key applications undergoing significant refactoring and migration. You will work directly with client teams and within a large IBM programme to ensure end-to-end validation throughout the migration lifecycle. This includes defining the test approach, producing high-quality test artefacts, building full-stack automation frameworks, and executing tests across UI, API, services, microservices, data, and integration layers. In this senior role, you will design scalable automation solutions, integrate automated tests into CI/CD pipelines, and collaborate with architects, developers, DevOps teams, and stakeholders. You will provide expert guidance on quality engineering practices within a complex, multi-supplier environment and support functional testers by delivering reusable automation assets that accelerate testing efficiency. Responsibilities:

• Define test approaches and quality strategies for large application refactoring and migration initiatives
• Build and maintain full-stack automation frameworks covering UI, API, services, microservices, containers, and integrations
• Create test artefacts including test plans, test scenarios, test scripts, and test data models
• Automate end-to-end test execution and integrate tests into CI/CD pipelines for continuous quality checks
• Develop reusable automation assets to support functional and regression testing
• Execute manual and automated tests to validate application behaviour during migration
• Collaborate with developers, architects, and DevOps teams to troubleshoot issues and ensure product readiness
• Analyse defects, perform root cause analysis, and drive continuous quality improvement
• Work effectively within a multi-supplier environment, managing dependencies across teams
• Provide technical leadership, mentoring, and quality guidance within the programme

This role is subject to pre-employment screening in line with the UK Government's Baseline Personnel Security Standard (BPSS). An additional range of Personal Security Controls referred to as National Security Vetting (NVS) may apply, this could include meeting the eligibility requirements for The Security Check (SC) or Developed Vetting (DV).

Preferred technical and professional experience

• Experience testing systems migrating to AWS
• Experience working in multi-supplier or large enterprise delivery environments
• Experience testing integration points or integration-focused solutions
• Exposure to large-scale refactoring or transformation programmes
• Experience mentoring or supporting other engineers

Strong experience designing and implementing automation across UI, API, services, and integration layers

• Proficiency in programming languages such as Java, JavaScript/TypeScript, Python,
• or C#
• Hands-on experience with automation tools (Selenium, Playwright, Cypress, RestAssured, Appium, etc.)
• Strong understanding of microservices, containers, and distributed architectures
• CI/CD pipeline expertise (GitHub, GitLab, Jenkins, Azure DevOps, etc.)
• Knowledge of test modelling, scenario design, and scalable automation patterns
• Strong analytical, debugging, and communication skills
• Proven ability to work confidently with cross-functional teams

IBM is committed to creating a diverse environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, caste, genetics, pregnancy, disability, neurodivergence, age, veteran status, or other characteristics. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

At IBM Consulting UK FutureNow, you'll build a career at the forefront of hybrid cloud and AI, working with leading clients across the public and private sectors. You'll collaborate with top industry professionals, gain hands on experience with cutting edge technologies, and deliver solutions that create real business impact. From day one, you'll work on meaningful, high profile programmes that stretch your skills and accelerate your growth. We invest heavily in you--supporting continuous learning, in demand skills development, and long term career progression. You'll thrive in a flexible, inclusive environment that values curiosity, encourages reinvention, and recognises what makes you unique.

• Tools and policies to support your work-life balance from flexible working approaches, sabbatical programs, paid paternity leave, maternity leave and an innovative maternity returners scheme
• More traditional benefits, such as 25 days holiday (in addition to public holidays), private medical, dental & optical cover, online shopping discounts, an Employee Assistance Program, life assurance and a group pension plan through salary sacrifice.