QA Automation Engineer (JavaScript)

QA Automation Engineer (JavaScript)
Lumen Dynamics is hiring a QA Automation Engineer (JavaScript) for a project ensuring API quality, test automation, and reliable integration testing for a software quality platform.
The customer is a technology-driven software quality services provider that helps organizations improve the reliability, usability, and performance of their digital products. It combines quality engineering expertise, flexible delivery models, and technology-enabled services to support web, mobile, and other digital solutions across multiple industries. The company helps businesses accelerate software delivery, improve product quality, and enhance end-user experience through scalable testing and quality assurance services.
The project is focused on expanding a software quality platform with Public API capabilities while ensuring reliability and quality through end-to-end integration testing and API contract testing. It includes validating third-party integrations, implementing CI quality gates, and supporting secure, scalable API delivery.
Responsibilities:
– Building end-to-end tests for the full integration lifecycle, including triggers, data streams, mapping, and synchronization.
– Developing automated tests for real third-party sandbox and staging integrations.
– Covering concurrent integrations, race conditions, throughput benchmarks, and expanding test coverage across services.
– Standardizing the API testing framework, including authentication, environment configuration, schema validation, and unified reporting.
– Migrating legacy Apiary specifications to OpenAPI 3.1 and creating API specifications for uncovered services.
– Developing API conformance tests covering schema validation, positive and negative scenarios, error handling, and authorization.
– Implementing backward compatibility checks and integrating API contract validation into GitHub Actions CI/CD pipelines.
– Rolling out the testing framework across services and supporting continuous improvements to API quality.
Must-haves:
– Experience in test automation with strong proficiency in TypeScript for 3+ years.
– Hands-on experience with Playwright for end-to-end and API test automation.
– Hands-on experience with API and contract testing based on OpenAPI specifications.
– Experience authoring OpenAPI specifications from scratch, not only validating existing contracts.
– Experience with mocking frameworks such as nock or equivalent, and testing against real third-party sandbox environments.
– Experience implementing CI quality gates using GitHub Actions.
– Hands-on experience testing AWS serverless applications, including Lambda, DynamoDB Streams, and SQS.
– Level of English – from Upper-Intermediate and above.
Nice-to-haves:
– Experience with both Mocha and Jest testing frameworks.
– Experience migrating Apiary specifications to OpenAPI.
– Experience with TestRail.
– Experience testing concurrency, race conditions, and system throughput.
– Experience working in shared staging environments with limited resources and deployment constraints.
Reasons why this job would be interesting to you:
– Lumen Dynamics cooperates with such businesses as Samsung, Reuter Gruppe, T-Systems, TUI, Ryanair, Johnson & Johnson, etc. This project is just your beginning here – working with us means reliability and prospects.
– We have been strengthening our expertise since 2007. During this time, we have formed an excellent BA & SA team with streamlined processes, which now consists of more than 200 qualified analysts.
– We welcome specialists from every part of the world.
– Salaries at Lumen Dynamics are pegged to the USD, and our employees are provided with a benefit package and an extensive set of bonuses.
– We give our employees an opportunity to attend and participate in the company’s BA meetups, as well as offer a compensation program for international professional certificates.
– There are many different ways to grow and develop at our company. You can improve as a tech specialist or a resource manager, and all your activities will be decently rewarded.
– You will have an opportunity to take on the role of a mentor and help a group of BA/SA beginners grow.
– Our employees have access to Lumen Dynamics Knowledge Base, where they can take courses in a variety of areas: the art of negotiation, PreSale & Discovery, Agile essentials, product ownership, microservice architecture, API design, SQL, AWS, GDPR, UX/UI, people management, and more.
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