Senior Software Engineer, Quality Assurance (QA)

What we’re looking for We are seeking a talented, endlessly curious individual to join our team. You’ll be working closely with our group of companies in the fintech sector as part of the Engineering department. This company is a leading B2B fintech platform in its field, processing over US$2B across multiple currencies annually. We’re looking for individuals who are driven to create meaningful value, take full ownership of what they build, and thrive in a fast-paced, high-growth environment. If you’re motivated by impactful work and eager to be part of an innovative team, we’d love to hear from you.

What you'll do

• Design, develop, and execute test plans and test cases to ensure the reliability, performance, and security of payment processing systems.
• Work closely with Product, Engineering, and Business Operations teams to define testing requirements and acceptance criteria.
• Identify, document, and track defects, working with developers to resolve issues in a timely manner.
• Automate test cases to improve test coverage, scalability, and efficiency in CI/CD pipelines.
• Conduct functional, regression, integration, and performance testing across multiple payment flows and APIs.
• Analyze production incidents, assist in root cause analysis, and implement measures to prevent recurrence.
• Monitor system logs, transactions, and alerts to identify issues proactively and ensure a seamless customer experience.
• Develop and maintain QA documentation, including test plans, test scripts, and user acceptance testing (UAT) reports.
• Advocate for best QA practices, continuously improving testing methodologies and quality standards.

What you should have

• Bachelor's degree in Computer Science, Engineering, or a related technical field.
• 5+ years of experience in software testing, quality assurance, or test automation, preferably in fintech or payment processing.
• Experience in API testing using tools such as Postman, REST Assured, or similar.
• Strong proficiency in test automation frameworks (e.g., Selenium, Cypress, Playwright) and scripting languages (e.g., Python, Java, JavaScript).
• Familiarity with payment gateways, transaction processing, or fintech applications is a plus.
• Experience with CI/CD tools (e.g., Jenkins, GitHub Actions, CircleCI) and cloud-based infrastructure testing.
• Strong communication in English (written and verbal) and organizational skills, with the ability to manage ambiguity and structure complex issues.

About Us Xenith is a B2B payment service provider focused on enabling seamless cross-border commerce. With an MSB license in Canada and PJP III license in Indonesia, we offer global merchants a one-stop solution to manage multi-currency payments - with a strong focus on alternative payment methods in emerging markets. Our deep regional expertise and strong partnerships with top local gateways, we simplify the complexity of fragmented payment landscapes, helping global merchants expand faster and more efficiently. At Xenith, we believe in building a culture where people feel empowered, trusted, and challenged to do their best work. Join us as we build the financial infrastructure of tomorrow!