Senior QA Specialist

Company Profile

RS2 offers secure payment services, payment software and managed services to clients in over 35 countries. The company upholds the highest industry standards and RS2’s in-house designed payments solution is the software of choice by many of the world’s leading and most innovative banks and financial institutions.

The role

Proactive and results-driven Senior Quality Assurance professional specializing in coordinating comprehensive testing activities across diverse technical domains, including API, Web UI, Backoffice systems, and Online Switch. Acting as a crucial bridge between technical execution and stakeholder alignment, this role leverages mature soft skills to facilitate critical discussions, mitigate risks, and drive continuous process improvement. A strong advocate for the “shift-left” approach, blending advanced architectural expertise in complex APIs with senior-level test coordination to build a culture of quality from within the team. Bilingual with advanced Spanish and intermediate English proficiency.

Responsibilities

Test Strategy & Cross-Domain Coordination (Primary Focus)

• Create, update, and maintain clear testing strategies and plans spanning multiple functional areas (API, Web, Backoffice, and Online Switch), ensuring full transparency for the team, stakeholders, and clients.
• Follow daily testing activities, actively participate in team huddles, and provide accurate, timely testing status updates to keep all parties aligned.
• Ensure that established testing procedures-including strict entry/exit criteria and execution steps-are correctly followed by both QA peers and relevant stakeholders.
• Assist in prioritizing and organizing team tasks, generating project estimates, managing schedules, and facilitating discussions regarding resource needs.

Technical Architecture & API Mastery (Secondary Focus)

• Support the design and maintenance of scalable, modular automation frameworks specifically tailored for RESTful APIs and backend services.
• Design and execute complex, data-driven API test suites (using tools like Postman/Newman) to validate data flows, authentication protocols, and system integrations.
• Drive the integration and optimization of automated API test suites within CI/CD pipelines, establishing robust quality gates and automated reporting metrics.
• Execute and oversee API performance and reliability testing protocols to ensure backend services consistently meet production-grade SLAs.
• Provide supplementary testing support and guidance for mobile applications and complex Web UI layers to ensure comprehensive end-to-end coverage when required.

Stakeholder Communication & Risk Management

• Actively attend and facilitate essential meetings with clients, product teams, and internal stakeholders regarding documentation, test progress, and defect triaging.
• Highlight and handle project risks well in advance, applying a senior-level sense of criticality to mitigate delivery or client impact.
• Utilize mature soft skills to maintain clear, concise communication during critical project phases, supporting, discussing, and seamlessly escalating to QA Managers when necessary.

Mentorship & Continuous Improvement

• Guide and coach team members toward adopting a robust QA and Automation mindset, championing a “shift-left” approach to ensure API “Testability” is baked into new features early.
• Drive the end-to-end defect lifecycle across Web, API, Backoffice, and Online Switch, ensuring timely resolution and high-quality delivery.
• Continuously evaluate current workflows to provide actionable suggestions that improve QA tooling, streamline processes, and promote quality across the company.

Skills

• Test Coordination & Strategy: Test Planning (API, Web, Backoffice, Online Switch), Scheduling, Defect Management, Risk Mitigation, Entry/Exit Criteria Adherence.
• Technical Architecture & API: RESTful APIs, Complex Data-Driven Testing, Authentication (OAuth2/JWT), Automation Framework Design, CI/CD Integration.
• Stakeholder Communication: Client Facilitation, Escalation Handling, Cross-functional Collaboration, Clear & Concise Reporting.
• Mentorship & Advocacy: Shift-Left Methodology, Automation Mindset Coaching, Peer Support, Process Optimization.
• Nice-to-Have / Bonus Skills: Mobile Testing (iOS/Android), Advanced Web UI Testing, Cross-Platform Coverage.
• Tools: Atlassian Suite (Jira, Confluence), Zephyr, Postman, Newman, GitLab, Playwright.
• Languages: Spanish (Advanced) | English (Intermediate).