Location
Remote from Serbia
Company
Mercury Development is a software engineering company delivering custom solutions for US-based enterprises and fast-growing technology startups.
What you will do
•Design and develop API, UI, and end-to-end tests for web and mobile applications.
•Use AI agents for code analysis, test development, refactoring, test data preparation, failure diagnosis, and CI work.
•Select the appropriate API, UI, or E2E verification level for each task and explain technical decisions.
•Improve existing test architecture through small, verifiable changes and maintain coverage as products evolve.
•Investigate unstable tests, analyze reports and artifacts, and prepare reliable CI runs.
•Participate in code reviews and share technical solutions with the team.
Requirements
•Strong middle-level experience with commercial test automation and independently delivered automation tasks.
•Practical experience using AI agents to decompose tasks, provide context, supervise execution, and validate results.
•Strong programming skills in TypeScript, JavaScript, or Python.
•Experience with UI/E2E frameworks, API automation, Git, and CI/CD.
•Experience automating React Native applications with Detox, native iOS/Android applications with XCUITest or Espresso, or Flutter applications with Maestro or Patrol.
•Technical English is required for reading requirements, documentation, and code.
Nice to have
•Experience configuring AI agent workflows, including project instructions, skills, MCP integrations, helper scripts, and quality gates.
•Experience with parallel test runs, data isolation, and test account factories.
•Load testing, visual regression testing, or AWS services in test environments.
Culture & Benefits
•Remote work from Serbia within a global team of more than 500 professionals.
•AI agents are integrated into the daily workflow for code exploration, test maintenance, data preparation, log analysis, CI, and documentation.
•AI-generated output is reviewed and validated through builds, targeted test runs, and code review.
•Projects use technologies including Playwright, Detox, Appium, Patrol, Pytest, GitLab CI/CD, Docker, Allure, REST API, SQL, and AWS.
