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Unicomtec • Lisle, Illinois, United States
Salary: $65/Hr
Role & seniority: Unit Testing Engineer (Sr. SDET), 8–10 years experience
Stack/tools: Java and .NET; Spring Boot; Kafka; Microservices; REST/SOAP APIs; Mocking frameworks (Java: JUnit, TestNG, Mockito; .NET: xUnit, NUnit, Moq); CI/CD with Azure DevOps and Git; Docker/Kubernetes (preferred)
Design, implement, and maintain unit tests for backend services and APIs (Java, .NET, Spring Boot)
Validate Kafka message flows and microservice interactions; develop mocks/stubs; ensure testability
Integrate unit tests into CI/CD pipelines; analyze results and support defect root-cause analysis; document strategies and coverage
8–10 years in software testing with strong unit testing/automation focus
Proficiency in Java and .NET; Spring Boot, Kafka, microservices
Experience with JUnit/TestNG/Mockito (Java) or xUnit/NUnit/Moq (-.NET)
REST/SOAP API unit validation; mocking/service virtualization; Agile environment
CI/CD integration (Azure DevOps, Git)
Static code analysis/test intelligence tools (SonarQube, Codacy)
Test management/automation tools (TOSCA, qTest)
Containerized environments (Docker, Kubernetes)
Open-source testing contributions
Location & work type: Lisle, IL; Hybrid (on-site with remote options)
Job Title: Unit Testing Engineer (Sr. SDET) Java and .NET
Pay Rate: $65/Hr.
Location: Lisle, IL (Hybrid)
Experience: 8-10 years Role Overview We are looking for a highly skilled and experienced Unit Testing Engineer (SDET) to join our development and QA efforts. This role focuses on designing, developing, and maintaining robust unit test suites for enterprise applications built on Java, .NET, and Spring Boot, with a strong emphasis on microservices, Kafka, and API integrations. The ideal candidate will play a key role in ensuring code quality and test coverage within our CI/CD ecosystem, collaborating closely with developers and DevOps teams. Key Responsibilities Design, implement, and maintain unit tests for backend services and APIs developed using Java, .NET, and Spring Boot. Validate Kafka message flows and microservices interactions through unit-level testing. Develop mocks, stubs, and test doubles to simulate external APIs and dependencies. Collaborate with developers to understand application logic and ensure testability of code. Integrate unit test execution within CI/CD pipelines using Azure DevOps and Git. Ensure unit-level test coverage for REST and SOAP APIs. Analyze test results, debug failures, and assist in root cause analysis and defect resolution. Document test strategies, test coverage metrics, and reusable unit testing components.
Required Skills & Experience 8-10 years of experience in software testing with a strong focus on unit testing and test automation. Proficiency in Java and .NET programming languages. Solid experience with Spring Boot, Kafka, and Microservices
Java: JUnit, TestNG, Mockito
.NET: xUnit, NUnit, Moq Experience integrating tests into CI/CD pipelines using Azure DevOps and Git. Strong understanding of REST and SOAP APIs and approaches for unit-level validation. Experience with mocking frameworks and service virtualization Experience working in Agile development environments with cross-functional teams.
Preferred Qualifications Experience with static code analysis and test intelligence tools (e.g., SonarQube, Codacy). Familiarity with test management and automation tools, including TOSCA and qTest Exposure to containerized environments using Docker or Kubernetes. Excellent analytical, problem-solving, and communication Contributions to open-source testing libraries or tools (a plus).