Middle QA Engineer (Analytics, API) in N-iX

N-iX is looking for a Middle QA Engineer with API testing experience to join our team on a full-time basis.About projectIt is a web application that focuses on the trading market and provides corporate clients with a comprehensive suite of customization products, offering transparency, flexibility and predictability. The main goal of it is to allow clients to gain exposure to the market, simply and transparently, to extract a return.Client Location: United Kingdom;Industry: FinTech;Team size: 10; Team location: Lviv and LondonKey Responsibilities: API Testing:Utilize tools such as Postman, Insomnia, or Swagger to test APIs.Write and execute API requests (GET, POST, PUT, DELETE) to validate functionality.Analyze API responses, including HTTP status codes, data formats (JSON, XML), and performance metrics.Work with RESTful and SOAP APIs, ensuring compliance with specifications and expected behaviors. Automation (Optional):Familiarity with automating API tests using tools like Postman Collections, Newman, or testing frameworks like REST Assured (Java) or Requests (Python).Assist in writing automated test scripts to improve efficiency and coverage. Collaboration:Work closely with development teams to understand API requirements and provide feedback on functionality, usability, and performance.Participate in Agile development processes, including stand-ups, sprint planning, and retrospective meetings. Bug Tracking:Document and report API bugs, and track their status in JIRA.Collaborate with developers to reproduce and resolve issues. Documentation:Review and contribute to API documentation.Ensure that test cases are up to date and reflective of API changes.Performance & Security Testing (Optional):Assist in testing the performance of APIs (e.g., load testing with tools like JMeter).Familiarity with basic security tests, such as verifying authentication, authorization, and data protection mechanisms.Key Skills:API Tools: Experience with Postman, Swagger, and other API testing tools.Basic Programming: Knowledge of scripting languages (e.g., Python, JavaScript) is a plus for writing automated tests.Problem Solving: Strong analytical skills to identify issues in API responses and integration points.Understanding of HTTP/HTTPS: Basic knowledge of web protocols, request methods, and response handling.Preferred Qualifications:Bachelor’s degree in Computer Science, Information Technology, or a related field.Experience with RESTful and SOAP APIs.Familiarity with API testing automation.Attention to detail in reviewing API responses and edge casesFinance business domain knowledge including trading is a plusWe offer:Flexible working format - remote, office-based or flexibleA competitive salary and good compensation packagePersonalized career growthProfessional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)Active tech communities with regular knowledge sharingEducation reimbursementMemorable anniversary presentsCorporate events and team buildingsOther location-specific benefits Show moreShow less Position level Not applicable Type of employment Full time Job duties Engineering Industries Construction works