12 of 12 API Testing Jobs in London

Web Automation Engineer (API & Functional Testing)

Hiring Organisation
Pronetx
Location
South London, UK
Employment Type
Full-time
customer experience technology. Job Overview We are seeking a skilled Web Automation Engineer to design, develop, and maintain a robust web automation framework for API and functional testing. The ideal candidate will have hands-on experience in building scalable test frameworks using Playwright and Python, with a strong emphasis … reliability, maintainability, and rapid feedback for CI/CD pipelines. Key Responsibilities Design, implement, and maintain a scalable web automation framework for API and UI/functional testing Develop test strategies, test plans, and automation suites using Playwright (Python) for web applications Create reusable, modular page objects ...

Senior Software Development Engineer Test

Hiring Organisation
La Fosse
Location
London Area, United Kingdom
annum - Largely remote - 1 UK office visit per month A key client is looking to add a senior SDET with strong API testing experience. You will be joining a new teams and working on a brand new greenfield platform build, working on an exciting new app first feature. … large amount of focus and work in this position will initially be focused on testing in API’s, developing and maintaining automated API's and end-to-end test suites; validating interactions across multiple distributed services. You will be comfortable with paired programming and well versed ...

QA Automation Engineer (Python / PyTest / Cosmos DB)-Banking Client Exp Required

Hiring Organisation
Vallum Associates
Location
City of London, London, United Kingdom
regulatory compliance across systems that handle large transaction volumes and business-critical data. The ideal candidate will be hands-on in manual and automated testing, with strong experience in Python, PyTest, and exposure to Cosmos DB. The role also requires close collaboration with developers, product owners, and data engineering … data validation across ETL pipelines, databases, and reporting layers Develop, maintain, and enhance test automation scripts using Python and PyTest Support API testing using tools such as Postman and Python libraries Validate system performance and scalability using performance and load testing tools Ensure systems and data meet ...

QA / Test Engineer

Hiring Organisation
&Dine
Location
London, UK
Employment Type
Full-time
ship works seamlessly — from menus and dietary filters to ordering, delivery, and billing. What you'll be doing Own end-to-end manual testing across customer-facing and internal tools Lead regression testing ahead of releases Test real-world user journeys (ordering food, dietary needs, cut-off times … fast-moving startup environment Clear communicator across technical and non-technical teams A genuine interest in food, hospitality, or building better workplace experiences Testing tools and technologies Experience with some of the following, or a strong willingness to learn: Manual & exploratory testing Regression and smoke testing User ...

Software Development Engineer in Test (SDET)

Hiring Organisation
Reed.co.uk
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 per annum
Managers to meet functional and non-functional requirements, with a strong focus on performance and security. Key Responsibilities Design and maintain automated UI and API tests for web applications and services Carry out exploratory testing to identify functional, UX, and edge-case issues Execute performance and security testing … Skills and Experience Strong programming skills, ideally in JavaScript and C#, with experience applying core software engineering design patterns and principles Extensive experience testing web-based applications, including Single Page Applications and microservice architectures Proven experience in automated UI and API testing using modern frameworks and tools ...

Lead Test Engineer - Microservices

Hiring Organisation
IO Associates
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£420 - £450 per day
profit, financial services and the pubic sector You will bring years of experience, understanding and practical application in all levels and types of testing and a good understanding and usage of AWS services to assist in the set-up and triggering of test conditions. As the Lead Test Engineer … will support the Test Manager with the strategy and coordinating a small team of Technical Test Engineers Must have experience in testing one or more of the following: Minimum of 5 years' experience in BOTH testing and test leadership Experience of testing web-based solutions built ...

Quality Assurance Engineer

Hiring Organisation
Overchain
Location
London, England, United Kingdom
play a key role in ensuring the reliability, security, and performance of Overchain’s platform as we scale. This position blends hands-on manual testing with automation engineering - applying sound judgement to test where it matters most, and building scalable automated coverage where it drives long-term speed … automation framework from the ground up - a high-impact opportunity to set the standards for how quality is engineered across Overchain. Responsibilities Perform manual testing across web platform flows to validate new features and prevent regressions; Design, build, and maintain automated tests across API ...

Lead Quality Assurance Engineer

Hiring Organisation
Eolas Medical
Location
City of London, London, United Kingdom
influence how doctors treat patients every day. About the Role We’re looking for a Senior Lead QA Engineer who excels in both manual testing and test automation: someone who loves to dig into new features, find edge cases, and ensure every release meets the highest standard of reliability. … these issues. You’ll work with our engineering team to validate the quality of our software through a mix of hands-on exploratory testing and automated test development. This is a key role in ensuring the stability, scalability, and safety of a platform that clinicians rely on daily. What ...

Selenium Tester / Developer - 3 Months - Remote

Hiring Organisation
Tank Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
into high-quality technical outcomes. Investigate, diagnose, and fix issues across applications and automation suites in a timely manner. Contribute to peer code reviews, testing activities, and technical documentation in line with internal guidelines. Stay informed on advancements in Java development, Oracle ecosystems, and test automation tools. Apply security … large-scale or enterprise environments. A minimum of two years' experience developing automated web tests using Selenium or similar frameworks. Strong background in functional testing methodologies. Practical experience with API testing and automation techniques. Familiarity with development and CI/CD tools such as Maven, Jenkins ...

Automation Tester - 12 Month FTC

Hiring Organisation
Michael Page Technology
Location
East London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£60,000 - £65,000 per annum
integration project. This role is remote with 1 day a week in either their London or Manchester office. Description This role is 100% Automation testing and you will need to hit the ground running on the project. Develop, test, and deploy automation frameworks and tools to optimise workflows. Collaborate … organisational policies. Contribute to the continuous improvement of the Technology department's processes. Profile Must haves: Strong automation background Selenium and C# Integration and API testing Mobile and Web testing Job Offer 28 days plus BHs 21 days paid volunteer leave Buy/Sell 5 days Double ...

Technical Business Analyst

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 500 - 525 Daily
flows Ability to work closely with developers, architects, and stakeholders Clear communication of technical concepts to non-technical audiences Nice-to-Have Skills SQL, API testing, or hands-on technical tools Cloud platforms, microservices, or DevOps exposure Experience with JIRA, Confluence, diagramming tools Relevant BA or Agile certifications ...

Software Tester

Hiring Organisation
Candour
Location
South London, UK
Employment Type
Full-time
delivery to achieve the best customer outcomes. Log defects clearly and promptly so they can be easily reproduced and fixed. Identify, manage, and mitigate testing risks. Support end users by managing tickets, investigating issues, and identifying root causes in UAT and production. Perform exploratory testing and analyse logs … behaviour to diagnose issues. Collaborate with developers, analysts, and operations teams to ensure smooth software delivery. Required: Minimum 3 years' experience in a professional testing environment. Strong knowledge of software testing methodologies, tools, and processes. Experience of both front-end and back-end testing. Proficiency in SQL Experience ...