Senior AQA Engineer: API & E2E Testing (TS/Node)

Avenga Water Well Service, LLC; Kraków; On-site; PLN 180,000 - 240,000; Full time

Job summary

Avenga is seeking a Senior AQA Engineer to design and implement reliable API and integration automation for Node.js/NestJS microservices in Kraków, Poland. You will build scalable test frameworks, integrate tests into CI/CD, and collaborate with architects and developers to raise quality across cloud-native architectures.

Ideal candidates bring hands-on TypeScript/Node.js testing experience, proficiency with API testing, and familiarity with modern DevOps practices.

Qualifications

• Commercial experience in test automation and Quality Engineering.
• Strong hands-on experience with TypeScript and Node.js for test automation.
• Experience with NestJS and testing applications/services built with Node.js/NestJS.
• Experience designing and developing scalable and maintainable test automation frameworks.
• Strong hands-on experience with API and integration testing (REST/HTTP).
• Understanding of API-driven architectures, integration patterns, and Tyk API Gateway.
• Experience in automating end-to-end (E2E), integration, regression, functional, and API tests.
• Experience integrating automated tests into CI/CD pipelines and implementing quality gates.
• Experience testing microservices, distributed systems, APIs, and enterprise applications.
• Proficiency with Git and modern software development and testing practices.

Responsibilities

• Develop reliable API, integration, end-to-end, functional, and regression automation for Node.js/NestJS-based services.
• Create and maintain automated tests for microservices and distributed systems.
• Integrate automated testing into CI/CD pipelines and support continuous quality practices.
• Develop and execute automated tests around REST APIs, integrations, and API Gateway flows, including systems using Tyk.
• Collaborate with developers, solution architects, QA engineers, and domain experts to define effective test strategies and automation approaches.
• Investigate test failures, identify root causes, and continuously improve framework stability and test execution.
• Promote shift-left testing, quality engineering, and risk-based automation practices.
• Ensure automation solutions are maintainable, reusable, scalable, and aligned with the overall software architecture.
• Contribute to the evolution of testing practices for cloud-native, microservices, and API-driven architectures.
• Where applicable, support testing and automation activities in AWS/cloud environments.
• Provide technical guidance and contribute to improving automation practices across the QA team.

Skills

Commercial experience in test automa

TypeScript and Node.js

NestJS

Test automation frameworks

API and integration testing

API-driven architectures & Tyk API GW

End-to-end and API tests

CI/CD integration & quality gates

Testing microservices & distributed系统

Git & modern dev practices

Tools

Tyk API Gateway

AWS

Docker

Kubernetes

Cloud-native architectures

Git

Job description

Avenga is seeking a Senior AQA Engineer to design and implement reliable API and integration automation for Node.js/NestJS microservices in Kraków, Poland. You will build scalable test frameworks, integrate tests into CI/CD, and collaborate with architects and developers to raise quality across cloud-native architectures.

Ideal candidates bring hands-on TypeScript/Node.js testing experience, proficiency with API testing, and familiarity with modern DevOps practices.