As a Test Engineer with Microservice Backend and BDD experience, your primary responsibility will be to design, implement, and execute automated test cases for microservices-based applications. You will use BDD methodologies to write tests in a way that is easily understandable by both technical and non-technical stakeholders. The goal is to ensure that microservices meet both the functional requirements and performance expectations while maintaining a high level of quality.
You will work closely with cross-functional teams, including developers, product owners, and business analysts, to define acceptance criteria and test scenarios that align with business goals.
Key Responsibilities:
1. Behaviour-Driven Development (BDD):
o Collaborate with Product Owners, Developers, and Stakeholders to define clear Acceptance Criteria for features in terms of user stories.
o Write Gherkin-style BDD scenarios (Given-When-Then) that define how microservices should behave under different conditions.
o Implement automated tests using BDD frameworks such as Cucumber, SpecFlow, or JBehave, integrating these into the CI/CD pipeline.
o Ensure that the tests are aligned with business requirements and customer expectations.
o Help stakeholders understand how to read and use BDD scenarios to test business logic.
2. Microservice API Testing:
o Design and execute automated tests for RESTful APIs or gRPC services to validate the functionality and behaviour of microservices.
o Validate data integrity, correct handling of HTTP responses, error codes, and edge cases in the context of distributed systems.
o Ensure that microservices interact correctly with other services and external systems through APIs, message queues, and databases.
o Verify that API contracts are adhered to using contract testing tools such as Pact or Spring Cloud Contract.
3. Test Automation & Continuous Integration:
o Develop automated test scripts for microservices using testing tools such as Cucumber, JUnit, RestAssured, and Mockito.
o Integrate automated tests into the CI/CD pipeline using tools like Jenkins, GitLab CI, or CircleCI to enable continuous testing.
o Ensure that tests run efficiently in parallel across different environments (e.g., local, staging, production) and validate the behaviour of microservices end-to-end.
4. Performance & Load Testing:
o Perform performance testing to assess how well microservices handle different loads. Use tools like JMeter, Gatling, or Locust to simulate high volumes of requests.
o Measure response times, throughput, and resource usage under stress and load testing scenarios, identifying any bottlenecks in the system.
5. Security Testing:
o Perform basic security testing on microservices to identify vulnerabilities in APIs and backend services (e.g., SQL injection, XSS, rate limiting).
o Ensure that authentication (e.g., OAuth2, JWT) and authorization mechanisms are implemented correctly.
o Validate that sensitive data is encrypted and that APIs are resilient to attacks.
6. Data Validation:
o Ensure that microservices properly interact with databases (SQL/NoSQL) by validating data consistency and integrity.
o Write complex SQL queries to verify that data is correctly processed and stored across distributed services.
o Verify that microservices handle data validation, transformation, and persistence properly.
7. Collaboration:
o Act as a liaison between business stakeholders, developers, and the QA team to ensure that business requirements are translated into testable behaviour.
o Review user stories and acceptance criteria to ensure that they are clear, complete, and testable.
o Participate in Agile ceremonies such as sprint planning, stand-ups, and retrospectives to provide feedback on test coverage and quality metrics.
8. Error Handling & Fault Tolerance Testing:
o Test the resilience of microservices by simulating failure scenarios (e.g., timeouts, service unavailability, network latency).
o Validate that services correctly implement circuit breakers, fallbacks, and retry mechanisms in case of failure.
9. Regression Testing:
o Perform regression testing to ensure that new features and bug fixes do not introduce defects in previously working parts of the system.
o Automate repetitive regression tests to reduce the manual testing effort over time.
Skills & Qualifications:
Technical Skills:
* BDD Frameworks:
o Experience with Cucumber, SpecFlow, JBehave for writing automated tests in Gherkin syntax (Given-When-Then).
o Familiar with tools that integrate BDD with other testing tools like RestAssured for API testing.
* Microservices Testing:
o Strong experience in API testing (REST/gRPC), including API contract testing, data validation, and error handling.
o Knowledge of microservices architecture, including service-to-service communication, asynchronous processing, and distributed data management.
* Test Automation:
o Experience in test automation using JUnit, TestNG, Mockito, and RestAssured for backend testing.
o Familiarity with mocking tools (e.g., Mockito, WireMock) for simulating dependencies in microservices testing.
* CI/CD:
o Experience with CI/CD tools like Jenkins, GitLab CI, or CircleCI to automate the testing and deployment pipeline.
* Performance Testing:
o Knowledge of performance testing tools like JMeter, Gatling, or Locust to measure the load and scalability of microservices.
* Database Testing:
o Proficiency in SQL and NoSQL databases for validating data integrity and consistency across distributed services (e.g., PostgreSQL, MongoDB, Cassandra).
* Security Testing:
o Familiarity with security testing techniques, such as validating JWT authentication, OAuth2, input validation, and rate limiting.
Soft Skills:
* Communication:
o Excellent verbal and written communication skills, with the ability to collaborate effectively with business stakeholders, developers, and QA teams.
* Collaboration:
o Ability to work effectively in an Agile environment, participating in sprints and understanding user stories to ensure the team builds the right solution.
* Problem-Solving:
o Strong analytical skills to troubleshoot complex issues in microservices interactions and behaviour.
* Attention to Detail:
o Strong attention to detail in test design and execution, ensuring the system behaves as expected under various conditions.
Experience:
* 5+ years of experience in testing microservices and backend services, with hands-on experience in BDD.
* Previous experience in an Agile development environment, working alongside developers, product owners, and business analysts.
Tools & Technologies:
* BDD Frameworks:
o Cucumber, SpecFlow, JBehave for writing and running BDD tests.
o Gherkin syntax for behavior specification.
* API Testing:
o Postman, SoapUI, RestAssured for REST API testing.
o Pact for contract testing.
* Test Automation:
o JUnit, TestNG for unit and integration testing.
o Mockito, WireMock for mocking and stubbing service dependencies.
* Performance Testing:
o JMeter, Gatling, Locust for load and performance testing.
* CI/CD:
o Jenkins, GitLab CI, CircleCI for integrating tests in the continuous delivery pipeline.
* Version Control:
o Git, GitHub, Bitbucket for code management and collaboration.
* Databases:
o SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Cassandra) for database validation.
* Security Testing:
o OWASP ZAP, Burp Suite for security testing.
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