We are a leading fintech company developing proprietary products for the capital markets. Our purpose is to simplify access to finance for all our users, from individual investors to major banks. We operate the only bond platform in the market with over 45,000 registered users, serving more than 70% of provincial banks as clients, along with other leading financial institutions. Mercap's culture is built on collaboration, innovation, continuous learning, and the pursuit of constant growth. On a daily basis, we strive to have fun and foster an excellent team environment where everyone has a voice. We are a company certified by GPTW as a great place to work. **About the position** This role is ideal for someone who wants to join a team that is implementing and optimizing the QA process almost from scratch. Although it is a complex financial functional environment, you will be supported from day one with training, coaching, and continuous support to grow within the role. You will dive deeply into quality assurance for APIs, microservices, and end\-to\-end testing, combining manual and automated testing using tools such as Postman, Newman, Cypress, and CI/CD pipelines with GitHub Actions and Jenkins. There is much to build: we are looking for someone eager to contribute ideas, suggest improvements and tools, and help us organize the QA workflow within the team. It's an excellent environment to learn, make a real impact on the business, and gain experience in automation and quality processes. **Responsibilities** * Perform manual and automated testing on APIs within a micro\-service based product * Design test cases for medium/high complexity requirements * Plan, execute, and document manual test plans (smoke tests, regression, integration, sanity, etc.) * Log incidents related to the functionality being tested * Execute, maintain, and design automated test cases * Implement automated tests within a CD/CI environment using GitHub Actions or Jenkins * Enforce quality assurance processes within the team * Analytical skills and proactivity to drive quality improvements within the team * Adaptability and dynamism to solve problems effectively **Mandatory Requirements** * Advanced student or graduate of university/tertiary programs related to computer systems * At least 2 years of professional experience in QA roles, both functional and automated * Experience in designing, executing, and documenting functional test cases * Experience in API testing using Postman (desirable: automated execution with Newman) * Experience with SQL (querying, data validation) * Experience in designing and executing automated tests using Cypress * Knowledge of Page Object Model (POM) principles * Experience in performance testing with JMeter or K6\. **Benefits** * Flexible working hours * Premium health insurance * 6 personal days off per year * 10 working vacation days per year * Discounts at Sport Club * In-house English classes * Extended paternity leave * Benefits through Mercado Pago * Unilever Benefits Club * Periodic salary reviews and an annual bonus tied to company goal achievement Our offices are located in CABA (microcenter), and we maintain a hybrid work model. This means we can work from home or go to the office depending on our needs. We look forward to your application!