Senior QA Engineer

About Company: Synechron is a global technology consulting firm that helps leading organizations accelerate digital transformation through innovation, expertise, and agility. With more than 16,500 professionals across around 60 offices in over 20 countries, we combine deep industry knowledge with advanced capabilities in AI, cloud, cybersecurity, and data engineering. Our regional teams, supported by strategic delivery centers, provide scalable, cost-efficient solutions tailored to local markets. Through our award-winning Synechron FinLabs accelerators and strategic partnerships with AWS, Microsoft, Databricks, Salesforce, and ServiceNow, we enable clients to innovate fast and lead with confidence. For more information on the company, please visit our website or LinkedIn community. Diversity, Equity, and Inclusion: Diversity & Inclusion are fundamental to our culture, and Synechron is proud to be an equal opportunity workplace and an affirmative-action employer. Our Diversity, Equity, and Inclusion (DEI) initiative ‘Same Difference’ is committed to fostering an inclusive culture – promoting equality, diversity and an environment that is respectful to all. We strongly believe that a diverse workforce helps build stronger, successful businesses as a global company. We encourage applicants from across diverse backgrounds, race, ethnicities, religion, age, marital status, gender, sexual orientations, or disabilities to apply. We empower our global workforce by offering flexible workplace arrangements, mentoring, internal mobility, learning and development programs, and more. All employment decisions at Synechron are based on business needs, job requirements and individual qualifications, without regard to the applicant’s gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. Job Description: We are looking for a highly experienced Senior QA Engineer to own quality assurance for a business-critical cloud migration and integration program within the financial markets industry. The ideal candidate is an expert in API automation using Postman and has strong experience testing Java, React, MongoDB, AWS, and CI/CD environments. Key Responsibilities: Design, develop, and maintain automated API test suites using Postman and Newman.Test REST APIs, microservices, authentication, authorization, integrations, error handling, and data validation.Create and execute functional, integration, regression, system, and end-to-end test plans.Validate React-based applications and confirm that migrated systems preserve existing business functionality.Verify data flow and integrity across Java services, MongoDB, AWS, and integrated platforms.Integrate automated tests into Jenkins CI/CD pipelines.Execute and troubleshoot tests in Docker and Kubernetes environments.Enforce quality gates, test coverage, defect standards, and release-readiness criteria.Perform root-cause analysis and collaborate with developers, DevOps engineers, and product teams.Support resiliency, scalability, and performance testing for high-volume financial systems. Mandatory Skills and Experience: 10+ years of QA/testing experience.Advanced hands-on experience with Postman API automation – mandatory.Strong experience with:Postman collections, environments, variables, scripts, assertions, and chained requestsNewman and CI/CD test executionREST APIs, HTTP methods, JSON, XML, and API securityAuthentication and authorization testingJava-based applications and microservicesReact applications and UI regression testingMongoDB or other NoSQL databasesJenkins and CI/CD pipelinesDocker and KubernetesAWS environmentsProven experience in functional, integration, regression, and end-to-end testing.Strong defect management, test planning, reporting, and root-cause analysis skills.Excellent communication and stakeholder-management abilities. Preferred Skills: Playwright for UI and end-to-end automation.Jest for React/JavaScript testing.K6 or another performance-testing tool.Experience with load, stress, scalability, and resiliency testing.Familiarity with SonarQube or other static code-quality tools.Experience in financial services, capital markets, post-trade, clearing, settlement, collateral, margin, or risk-management systems.