Backend QA Engineer

Lush Fresh Handmade Cosmetics North America

Backend QA Engineer testing Lush’s global cosmetics platform APIs, databases, and microservices. Automating tests, validating data integrity, and protecting performance and security.

Posted 8/4/2026full-timePoole • 🇬🇧 United KingdomJuniorMid-Level💰 £38,000 - £46,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and executing test suites for GraphQL and REST APIs, with a strong focus on backend architecture and data integrity. Proficient in automated testing frameworks using TypeScript or Python, and skilled in performance testing and security assessments against industry standards.

Highest-signal resume keywords

API TestingAutomated Testing FrameworksSQL/NoSQL QueryingPerformance TestingRoot-Cause Analysis

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

GraphQLREST APIsTypeScriptPythonSQLNoSQLDockerPerformance TestingLoad TestingSecurity Assessment

Soft Skills

Technical CommunicationProactive Risk Identification

Tools & Technologies

PostmanREST AssuredInsomniaGitHub ActionsGitLab CIKafkaRabbitMQPub/SubK6JMeter

Industry Keywords

Backend ArchitectureData IntegrityAgileContinuous TestingE-Commerce

Tech Stack

Tools & technologies

DockerDynamoDBGraphQLJMeterKafkaMicroservicesMongoDBMySQLNoSQLPostgresPythonRabbitMQSQLTypeScript

About the role

Key responsibilities & impact

Design, execute, and maintain test suites for GraphQL and REST APIs
Verify API payload structures, status codes, and response times
Build and maintain automated backend test frameworks in TypeScript or Python
Integrate automated end-to-end test runs into CI/CD pipelines
Write complex SQL/NoSQL queries to verify data flow, migration scripts, and backend consistency
Test distributed microservices and asynchronous workflows such as Kafka, RabbitMQ, and Pub/Sub
Conduct performance and load testing
Assess backend security against OWASP API Top 10 guidelines and verify JWT/OAuth authentication
Use tracing tools and log analysis to isolate complex breakpoints
Collaborate with Developers and DevOps on root-cause fixes
Participate in an autonomous agile team, prepare test scenarios, support continuous testing, and advocate for quality in planning and architecture discussions

Requirements

What you’ll need

2+ years of dedicated software testing experience focused on backend architecture, API testing, and data integrity
Hands-on experience with Postman, REST Assured, or Insomnia
Experience querying PostgreSQL, MySQL, MongoDB, or DynamoDB
Ability to write and maintain backend test suites in TypeScript or Python
Working knowledge of Docker containerization
Familiarity with CI/CD pipelines such as GitHub Actions or GitLab CI
Excellent root-cause analysis skills
Strong technical communication
Proactive approach to identifying risks and edge cases
Desirable: performance and load testing experience with k6, JMeter, Locust, or Gatling
Desirable: familiarity with Kafka, RabbitMQ, and distributed microservices
Desirable: understanding of OWASP and NIST 2.0 CSF
Desirable: experience in retail, e-commerce, or fast-paced digital operations

Benefits

Comp & perks

25 days holiday plus bank holidays
6 months of full pay for parental leave (primary caregiver must qualify for SMP)
Enhanced paternity leave
Bonus scheme
Day off for weekday birthdays
Holiday purchase scheme
50% discount on Lush products and spa treatments
Cycle to work scheme
Discounted rail and bus season tickets
Employee assistance programme
Flexible working opportunities
10% employee ownership and share in rewards of success
Wellbeing and mindfulness sessions
Access to employee-led Community Networks
Tailored gender affirming care