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Lorien

API Automation Engineer

On site

London, United kingdom

Freelance

27-10-2025

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Skills

Communication Java CI/CD Docker Kubernetes Test Test Automation Performance Testing Problem-solving Architecture AWS Agile Manual Testing CI/CD Pipelines

Job Specifications

API Automation Engineer
Hybrid Working - London - 2 days a week on site.
Financial Services
Lorien's leading banking client is looking for a skilled API Automation Engineer with strong Java development experience to join our London-based team.
This is not a manual testing role or one focused on tools like SOAP UI - we need someone who can design and build robust test automation frameworks using Java and REST Assured, with a solid understanding of mocking and cloud environments (AWS).
This role is based in London.
This role will be Via Umbrella.
Working in a Hybrid Model of 2 days a week on site.
Key Skills and Experience
Design, develop, and maintain API test automation frameworks using Java and REST Assured
Implement mocking strategies to simulate API responses and dependencies.
Collaborate with developers and QA engineers to ensure high-quality software delivery.
Integrate tests into CI/CD pipelines and contribute to test strategy and architecture.
Work in a BDD environment using Cucumber to define and execute test scenarios.
Participate in code reviews and contribute to continuous improvement of testing practices.
Required Skills & Experience:
Proven experience in Java-based API test automation
Hands-on expertise with REST Assured
Experience with AWS and cloud-based testing environments
Strong understanding of mocking tools and techniques
Familiarity with BDD frameworks like Cucumber
Comfortable working in an Agile environment
Excellent problem-solving and communication skills
Nice to Have:
Experience with contract testing tools (eg, Pact)
Exposure to performance testing of APIs
Knowledge of containerisation (Docker, Kubernetes)
IND_PC3
Carbon60, Lorien & SRG - The Impellam Group STEM Portfolio are acting as an Employment Business in relation to this vacancy.

About the Company

Lorien is a technology, transformation and telecom talent solutions specialist. We combine tech expertise with the scope, depth and breadth of large-scale talent solutions. Driven by both clients and candidates, covering Europe and the US, we work with all sectors, sizes and tech needs – from start-up to established, tech companies and those who use tech to propel them further - we work with them all. Our unique position in the market means we have the insight to create tailored solutions – keeping our clients ahead of t... Know more