• 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

About Zscaler Zscaler accelerates digital transformation to ensure our customers can be more agile, efficient, resilient, and secure. As an AI-forward enterprise, we are constantly pushing the envelope, leveraging the world’s largest security data lake to power our cloud-native Zero Trust Exchange platform. This innovation protects our customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Here, impact in your role matters more than title and trust is built on results. We say, impact over activity. We seek innovators who actively use AI to amplify their impact and who thrive in an environment where we leverage intelligent systems to stay ahead of evolving threats. We believe in transparency and value constructive, honest debate—we’re focused on getting to the best ideas, faster. We build high-performing teams that can make an impact quickly and with high quality. To do this, we are building a culture of execution centered on customer obsession, collaboration, ownership, and accountability. We value high-impact, high-accountability with a sense of urgency where you’re enabled to do your best work and embrace your potential. If you’re driven by purpose, thrive on solving complex challenges, and want to be part of the team that’s helping to secure the AI age, we invite you to bring your talents to Zscaler and help shape the future of cybersecurity. Role We’re looking for a Senior Staff Software Engineer to join our team. Based out of our San Jose headquarters (Hybrid 3 days/week) or available as a remote opportunity within the Pacific Timezone, you will report to the Principal Software Development Engineer within the Zero Trust Exchange department. As a Sr Staff Software Engineer you will build the backend systems that keep the product fast, reliable, and able to scale as usage grows. You will create microservices and event-driven workflows, and ensure data can be ingested and queried efficiently across relational, graph, and time-series databases. You will also drive cross-team execution by collaborating closely with multiple groups to deliver high-quality results on tight timelines. What you’ll do (Role Expectations) - Architect and deliver scalable microservices on EKS (GoLang): design, build, and operate production services that meet uptime, latency, and scale goals - Build event-driven pipelines with Kafka and MQTT: implement asynchronous workflows that are resilient, observable, and easy to evolve as product needs change - Design high-performance data models and access patterns: optimize ingest and querying across RDS MySQL, Neo4J, and ElasticSearch for correctness, speed, and cost efficiency - Harden production readiness and operational excellence: establish monitoring, alerting, tracing, and on-call standards; drive root-cause fixes and reliability improvements - Lead cross-team delivery and technical direction: align stakeholders, break down complex work, and execute quickly while maintaining a high bar for quality and security Who You Are (Success Profile) - You act like an owner. Your passion for the mission fuels your bias for action. You operate with integrity because you genuinely care about the outcome. You adapt to what’s needed, navigating seamlessly between high-level strategy and hands-on execution. - You are a problem-solver. You seek out challenges because you are energized by finding solutions, knowing that solving the hard problems delivers the biggest impact. - You are a positive force. You approach hard problems with constructive energy and a 'can-do' spirit that is contagious, inspiring your team to stay focused on the solution. - You are a pragmatic builder. You are obsessed with creating, iterating, and shipping. You aren't afraid to roll up your sleeves and build the first version yourself, balancing the drive for technical excellence with the need to deliver value to users quickly. - You champion simplicity. You are skilled at distilling complex problems, user needs, and technical concepts into clear, simple, and actionable plans. You are a precise communicator who brings clarity and focus to every interaction. What We’re Looking for (Minimum Qualifications) - Senior-level backend engineering experience designing and shipping highly scalable microservices in production developed in Go - Proven experience with event-driven, asynchronous architectures using messaging/streaming platforms such as Kafka - Strong data engineering and persistence skills building efficient ingest and query patterns across relational databases (MySQL) plus at least one of ElasticSearch or Neo4J - Hands-on experience running services on Kubernetes (ideally EKS), including deployment, troubleshooting, and operational ownership What Will Make You Stand Out (Preferred Qualifications) - Proven ability to profile and optimize distributed systems end-to-end (latency, throughput, resource usage), including performance tuning across services, databases, and messaging - Strong track record designing debuggability/observability for distributed applications—structured logging, metrics, distributed tracing, and actionable dashboards/alerts for rapid incident triage - Experience defining and operationalizing SLIs/SLOs (error budgets, alert policies, reliability reporting) and driving product decisions based on measured service health #LI-Hybrid #LI-CM3 Zscaler’s salary ranges are benchmarked and are determined by role and level. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position across all US locations and could be higher or lower based on a multitude of factors, including job-related skills, experience, and relevant education or training. The base salary range listed for this full-time position excludes commission/ bonus/ equity (if applicable) + benefits. Base Pay Range $154,000—$220,000 USD At Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure. Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including: - Various health plans - Time off plans for vacation and sick time - Parental leave options - Retirement options - Education reimbursement - In-office perks, and more! Learn more about Zscaler’s Future of Work strategy, hybrid working model, and benefits here. By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines. Zscaler is committed to providing equal employment opportunities to all individuals. We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws. See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link. Pay Transparency Zscaler complies with all applicable federal, state, and local pay transparency rules. Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.