• Review system requirements, security requirements, and design documentation to identify testable components and create traceability • Defining test scope, identifying test cases, and establishing test methodologies • Creating comprehensive testing documentation to ensure thorough and consistent testing • Determining the most critical areas for testing and focus resources accordingly • Execute system, integration, and end‑to‑end testing for cybersecurity-focused systems and services • Document test results, maintain test evidence, and ensure compliance with internal and DoW testing standards • Identify, log, and track defects; collaborate with developers and engineers to reproduce issues and validate fixes

• Responsible for supporting test infrastructure of Natera software systems and components. • Design, build, and maintain test automation tools and frameworks using clean coding practices and functional programming methodologies. • Perform complete end-to-end validation of Natera software applications. • Perform system analysis, assess risk, and develop strong test strategies. • Evangelize new testing methodologies, best practices and tools with goals to continuously improve test coverage through automation. • Integrate with deployment infrastructure to establish a continuous build and test cycle. • Work closely with developers in all phases of SDLC to build quality into development process. • Report, document, and communicate failures discovered through testing with the affected teams.

Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco home, and has since grown to over 5 million hosts who have welcomed over 2 billion guest arrivals in almost every country across the globe. Every day, hosts offer unique stays and experiences that make it possible for guests to connect with communities in a more authentic way. The Community You Will Join: Airbnb Payments team allows any two people in the world to frictionlessly exchange money with easy to use payments services. It is a core strategy to fulfill Airbnb’s belongs anywhere mission.We are building a world-class payments platform that moves billions of dollars, in 191 countries, with 75 currencies, through a complex ecosystem of payments partners. We build and maintain our own in-house global payments platform because no solution exists with the global reach needed. As the platform grows we’ll be adding new payment partners, global licenses, compliance and regulation controls, and building new payment experiences for our guests and hosts. The Difference You Will Make: We are looking for talented and self-motivated Software Engineers who are passionate about working in this highly dynamic domain and collaborating with world-class XFN teams to advance our mission. As part of the Payments Post Transaction Risk Engineering team, you will be in charge of designing and building a wide range of scalable systems and robust infrastructure to mitigate and resolve dispute & chargeback issues across our entire payments platform, and to save the monetary losses for Airbnb platform in the post transaction stage. You will be deeply involved in the technical details of building highly available and real-time risk services in close collaboration with product, data science and operations teams to understand and improve the dispute & resolution system for Airbnb. A Typical Day: - Building and maintaining a long-term technology stack with well defined APIs that is service-oriented, modular, granular, observable, and efficient. - Working closely with data scientists, product managers and other XFN partners to build business insights, develop product features and respond to fraud attacks and risk issues across the platform. - Building and maintaining integrations with third party vendors / payments networks & processors to empower our in house chargeback defense systems. - Developing and iterating on our dispute & chargeback mitigation and remediation strategies as risk scenarios/business requirements evolve. - Focusing on continuous monitoring and alerting to uplevel the quality and observability of our risk systems. - Collaborating with other engineering teams across Airbnb to advance our engineering process and technical foundation. Your Expertise: - 4+ years of relevant industry experience (Payments/Fintech) as a backend software engineer. - Proficient in at least one major programming language (preferably Java/Kotlin/Python). Experience in React (or any equivalent JS library) would be nice to have. - Exposure to architectural patterns of large, high-scale web applications, such as well-designed APIs, high volume data pipelines, and efficient algorithms. - Passion for delivering products end-to-end, from ideation through planning and scoping to implementation and experimental A/B testing. - Rigor in high code quality, automated testing, and other engineering best practices. - Experience or desire to work collaboratively in cross-functional teams with product, data scientists, design and operations. - Familiarity with experimentation and machine learning techniques - Outstanding communication and interpersonal skills and detail oriented. - Capable of making data driven decisions and articulating tradeoffs in any technical decisions. - Bachelor’s and/or Master’s degree, preferably in CS, or equivalent experience. - Experience in fraud/spam detection/mitigation in the payments domain is a huge plus, but not required. Your Location: This position is US - Remote Eligible. The role may include occasional work at an Airbnb office or attendance at offsites, as agreed to with your manager. While the position is Remote Eligible, you must live in a state where Airbnb, Inc. has a registered entity. Click here for the up-to-date list of excluded states. This list is continuously evolving, so please check back with us if the state you live in is on the exclusion list. If your position is employed by another Airbnb entity, your recruiter will inform you what states you are eligible to work from. Our Commitment To Inclusion & Belonging: Airbnb is committed to working with the broadest talent pool possible. We believe diverse ideas foster innovation and engagement, and allow us to attract creatively-led people, and to develop the best products, services and solutions. All qualified individuals are encouraged to apply. We strive to also provide a disability inclusive application and interview process. If you are a candidate with a disability and require reasonable accommodation in order to submit an application, please contact us at: reasonableaccommodations@airbnb.com. Please include your full name, the role you’re applying for and the accommodation necessary to assist you with the recruiting process. We ask that you only reach out to us if you are a candidate whose disability prevents you from being able to complete our online application. How We'll Take Care of You: Our job titles may span more than one career level. The actual base pay is dependent upon many factors, such as: training, transferable skills, work experience, business needs and market demands. The base pay range is subject to change and may be modified in the future. This role may also be eligible for bonus, equity, benefits, and Employee Travel Credits. Pay Range $162,000—$186,000 USD

- Execute functional testing of web application features, validating stories against acceptance criteria and documenting defects with clear reproduction steps, severity classification, and expected versus actual behavior - Build, maintain, and expand automated regression test suites using Playwright, Cypress, and Selenium with Cucumber/Gherkin BDD patterns, integrated into GitLab CI pipelines for continuous feedback - Create and maintain automated API test collections using Postman and Rest Assured to validate microservice endpoints, inter-service contracts, and integration points with external systems - Perform digital accessibility evaluations on coded solutions using automated tools (aXe, pa11y, WAVE, ANDI) and manual techniques (JAWS and NVDA screen reader testing) per WCAG 2.1 AA and Section 508 standards, following the DHS Trusted Tester conformance test process - Document accessibility findings with specific WCAG success criteria references and actionable remediation guidance that enables developers to resolve issues efficiently - Execute load and performance tests using NeoLoad, JMeter, or equivalent tools to validate response times, throughput, and error rates against defined thresholds before production releases - Maintain test plans and test cases in Confluence linked to Jira stories, with test evidence documented for sprint reviews - Collaborate with developers to define clear acceptance criteria and test criteria during backlog refinement, ensuring stories are testable before development begins - Participate fully in Agile ceremonies within a SAFe framework: Sprint Planning, Daily Standup, Sprint Review, Retrospective, and Backlog Refinement - Maintain CI-integrated test suites at a 95% pass rate or above and resolve flaky tests promptly to keep automation a reliable quality gate - Support production triage when assigned, diagnosing issues and verifying fixes through the standard CI/CD pipeline - Contribute to test strategy improvements, automation framework enhancements, and knowledge sharing across the QA team