Software Quality Engineer
We are looking for a Software Quality Engineer with a strong full-stack background and a deep passion for software quality. In this role, you will contribute directly to a NestJS and React codebase while leading the design, development, and maintenance of automated testing infrastructure that ensures financial systems remain reliable, secure, and compliant.
Salary: 4200 - 5200 EUR per month
B2B Contract
Full-time
Remote from Serbia This position is ideal for an engineer who enjoys writing production-quality code and views testing as a first-class engineering discipline. You will play a key role in advancing quality practices from simply maintaining tests to implementing a world-class automated testing strategy that spans backend, frontend, and infrastructure layers.
Requirements
3-5+ years of experience in software quality engineering, testing, or full-stack development
Strong proficiency in TypeScript and writing reusable testing utilities
Deep experience with testing frameworks such as Jest and Vitest
Hands-on experience with Playwright or Cypress for E2E testing
Solid understanding of backend architecture and NestJS (DI, Guards, Interceptors, Pipes)
Strong knowledge of React (Hooks, rendering lifecycle, DOM interactions)
Experience configuring automated test pipelines (GitLab CI, GitHub Actions, or Jenkins)
Strong experience testing REST APIs and validating schemas
Understanding of test isolation, mocking, and deterministic testing practices Nice to have
Experience testing PostgreSQL databases and ORM-based applications
Familiarity with consumer-driven contract testing frameworks (e.g., Pact)
Experience with performance and load testing tools (e.g., k6, JMeter)
Background in fintech or financial systems requiring high precision and data consistency
Experience testing event-driven architectures and asynchronous workflows
Exposure to automated security scanning and code quality tools Responsibilities
Design, build, and maintain automated testing infrastructure across backend, frontend, and integrations
Develop shared testing utilities, helpers, and custom matchers for NestJS and React applications
Improve test readability, reusability, and consistency across engineering teams
Own and optimize testing stages within CI/CD pipelines to ensure fast, stable, and reliable builds
Build and maintain end-to-end (E2E) test suites simulating real-world user workflows
Implement contract and integration testing to safeguard microservices and third-party API integrations
Configure and maintain code coverage reporting and quality metrics
Integrate automated security scanning and quality analysis tools
Add performance, regression, and reliability testing to critical system flows
Design robust mocking strategies for event-driven systems (e.g., message queues) and cloud services
Collaborate with engineering teams to embed quality practices throughout the development lifecycle Please include GDPR consent
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Remote/Serbia
Software Quality Engineer
4200 - 5200 EUR
net/month - B2B
net/month - B2B
apply via email
4200 - 5200 EUR
recruitment@devsdata.com
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