SDET - Software Engineer in Test (3971)

About GBG

Enabling safe and rewarding digital lives for genuine people, everywhere

We make it our mission to ensure more genuine people have digital access to opportunities, and businesses have access to more genuine people. Our technology draws on diverse and reliable data to create a single point of truth for identity and address verification.

With over 30 years of experience behind us our team and technology are focused on enabling safe and rewarding digital lives for everyone. Regardless of age, location or background, genuine people everywhere should be able to digitally prove who they are and where they live.

About the team and role

Documents & Biometrics Team

Our team is a diverse and dynamic group with a shared focus on creating exceptional applications. We strive for excellence in both functionality and developer experience, catering to customers operating in complex domains with strict requirements for security, compliance, and usability. Our daily work follows Agile methodology, placing a strong emphasis on automation. We believe in the power of close collaboration, valuing the input and expertise of our team members as well as fostering partnerships with colleagues both within and outside our team.

Software Engineer in Test

As a Software Engineer in Test, you will play a key role in ensuring the quality, reliability, and performance of our Documents & Biometrics product portfolio, with a focus on document authentication software. You will contribute throughout the software delivery lifecycle by helping set up guardrails to ensure quality code is shipped, and taking ownership of ensuring new features meet the expectations of stakeholders. In this role, you will build robust automated test suites, expand our CI/CD testing capabilities, and help champion best practices for quality across the team. You’ll collaborate frequently with developers, product owners, and other stakeholders, communicating clearly and proactively. You will continually learn and grow your skills in both testing and engineering.

What you will do

Test Automation & Quality Engineering

• Design, develop, and maintain automated test suites using C#, .NET.
• Build automation for API, integration, end‑to‑end, performance, and regression testing.
• Implement testing best practices, including shift‑left testing and quality‑driven development.
• Ensure high coverage and reliability of automated tests across services and microservices.

Cloud Quality Engineering (AWS)

• Build and execute cloud‑based test strategies across AWS services (Lambda, API Gateway, S3, SNS/SQS, DynamoDB, ECS/EKS, IAM).
• Validate architecture resilience, scalability, and security through automated and exploratory testing.
• Use infrastructure‑as‑code tools (CloudFormation / Terraform / CDK) to provision test environments.

CI/CD Automation

• Develop and optimise CI/CD pipelines using GitHub Actions / Azure DevOps / Jenkins / GitLab CI.
• Integrate automated tests into pipelines to ensure rapid, reliable delivery.
• Embed quality gates, security scans, and performance checks into end‑to‑end pipelines.
• Collaborate with DevOps/Platform teams to build repeatable, self‑service test environments.

Engineering Collaboration

• Work closely with developers, product managers, and SRE teams to drive a quality‑first culture.
• Participate in code reviews, architecture discussions, and design sessions to influence quality early.
• Troubleshoot defects, conduct root cause analysis, and implement preventative fixes.

Skills we're looking for

• Strong proficiency in C#/.NET for both development and automation.
• Hands‑on experience with automated testing frameworks, such as:
• xUnit, NUnit, MSTest
• Playwright / Selenium for UI testing

• Experience testing cloud‑native applications on AWS.
• Solid understanding of CI/CD pipelines and automation frameworks.
• Knowledge of containers (Docker), orchestration (Kubernetes/ECS), and microservices testing.
• Familiarity with API testing tools (Postman, REST Assured‑style frameworks).
• Strong understanding of quality engineering practices:
• Shift‑left testing
• Contract testing
• Performance/load testing (k6, JMeter/Locust)

• Strong analytical and problem‑solving skills with a “test early, test often” mindset.
• Collaborative working style with the confidence to challenge assumptions constructively.
• Passion for automation, continuous improvement, and engineering excellence.
• Ability to dive into complex systems and uncover edge cases and failure modes.

Desirable Skills

• Experience with IaC testing, e.g., CloudFormation linting, Terraform testing tools.
• Knowledge of observability tooling (CloudWatch, ELK, Prometheus, Grafana).
• Exposure to DevSecOps, including static/dynamic security testing.
• Understanding of event‑driven architectures and messaging validation patterns.
• Experience with feature flags, chaos testing, and resilience testing.

To find out more

As an equal opportunity employer, we are dedicated to creating a diverse and inclusive workplace where everyone feels valued and empowered. Please inform your GBG Talent Attraction Partner if you require any reasonable adjustments to the interview process.

To chat to the Talent Attraction team and find out more about our benefits and why we’re a great place to work, drop an email to [email protected] and we’ll be in touch. You can also find out more about careers at GBG and check out our current opportunities at gbgplc.com/careers.

Unleash your potential and be part of our mission to power safe and rewarding digital lives.