As a Senior QA Engineer, you will play a crucial role in validating FMX's trading platforms and ensuring their reliability in high-stakes environments. Your expertise in manual testing, trading protocols, and financial markets will be instrumental in designing robust test plans and collaborating with cross-functional teams. This role offers an opportunity to mentor junior QA team members and contribute to the continuous improvement of QA processes. • Lead manual testing across trading products, covering functional, regression, integration, and workflow scenarios. • Validate trading protocols, including message flows, order lifecycles, and market data interactions. • Review and analyze business requirements to design comprehensive test plans and cases. • Collaborate with product and engineering teams to refine requirements and identify edge cases. • Test and validate trading screens for accuracy, usability, and trader expectations. • Reproduce, document, and track defects, working closely with developers for timely resolution. • Participate in release readiness, risk assessments, and go/no-go decisions. • Mentor junior QA team members and establish best practices for trading system testing. • Contribute to the continuous improvement of QA processes, tools, and documentation. • 8+ years of experience in QA roles within financial markets, trading platforms, or interdealer broker environments. • Proficiency in manual testing, including test planning, execution, and defect management. • Deep knowledge of trading protocols (FIX, proprietary protocols, market data feeds). • Experience building, testing, or supporting trading screens or front-end interfaces. • Understanding of order types, execution workflows, market structure, and trade lifecycle. • Ability to interpret logs, message flows, and protocol-level interactions. • Strong analytical and problem-solving skills, with a trader's mindset. • Excellent communication skills for effective cross-functional collaboration. • Familiarity with automation frameworks and performance testing is preferred. • Experience in interdealer broker environments or OTC markets is an asset.