Staff Quality Assurance Engineer

Arkose Labs is on a mission to create an online environment where all consumers are protected from spam and abuse. As a Fast Company 2025 Best Workplace for Innovators, we provide a proactive fraud deterrence platform, Arkose Titan, designed to neutralize modern attacks powered by Agentic AI and LLMs. By combining proprietary intelligence with dynamic friction, we undermine attacker ROI to protect global giants like Microsoft, Meta, and Roblox. Headquartered in San Mateo, CA, we maintain a global presence across APAC, Central and South America, and EMEA. What You'll Do Build and maintain automated test frameworks for end-to-end testing from UI to backend APIs Create comprehensive UI test suites using Cypress for device fingerprinting components and user flows Develop API test automation for REST/gRPC services and integrate with CI/CD pipelines Test cloud infrastructure components including CDN caching, network latency, and platform bottlenecks Lead quality initiatives for high-scale services, ensuring reliability and performance Execute security testing and red team exercises to validate fraud prevention mechanisms Partner with engineering teams to troubleshoot production issues and drive system improvements Establish QA best practices and mentor junior engineers on testing methodologies What You'll Need 8+ years of QA experience with 3+ years in a senior/staff role Strong experience with UI/frontend testing and E2E test automation (Cypress, Selenium, or similar) Proven experience testing large-scale distributed systems Hands-on programming skills in Go, Python, or JavaScript Strong API testing expertise (REST, gRPC) with automation framework experience Working knowledge of AWS services and cloud infrastructure Experience with security testing methodologies and fraud detection systems Performance testing expertise with ability to identify bottlenecks at scale Self-directed problem solver who can work independently on complex challenges Experience with SQL, NoSQL databases and vector databases Nice to Have Understanding of device fingerprinting, bot detection, and anti-fraud techniques Knowledge of CORS policies, CDN behavior, and middleware architecture Cross-browser testing experience and familiarity with browser automation tools Mobile testing experience across iOS and Android platforms Background in red team exercises and adversarial testing Why Arkose Labs? At Arkose Labs, our technology-driven approach enables us to make a substantial impact in the industry, supported by a robust customer base consisting of global enterprise giants such as Microsoft, Roblox, and more. We’re not just a company; we’re a collaborative ecosystem where you will actively partner with these influential brands, tackling the most demanding technical challenges to safeguard hundreds of millions of users across the globe. Why do top tech professionals choose Arkose Labs? Cutting-Edge Technology: Our high-efficacy solutions, backed by solid warranties, attract leading, global enterprise clients. Innovation and Excellence: We foster a culture that emphasizes technological innovation and the pursuit of excellence, ensuring a balanced and thriving work environment. Experienced Leadership: Guided by seasoned executives with deep tech expertise and a history of successful growth and equity events. Ideal Size: We’re structured to be agile and adaptable, large enough to provide stability, yet small enough to value your voice and ideas. Join us in shaping the future of technology. At Arkose Labs, you’re not just an employee; you’re part of a visionary team driving global change The most recognizable brands in the world select Arkose Labs, including Roblox, Microsoft, Adobe, Expedia, Snapchat, and Zilch. We value your unique contributions, perspectives, and experiences. Be part of a diverse and high-performing environment that prioritizes collaboration, excellence, and inclusion. We hire the best, focus on their professional development, and offer support for continuing education. We value: People: first and foremost they are our most valuable resource. Our people are independent thinkers who make data driven decisions and take ownership and accountability in all the things they do. Team Work. We demonstrate respect, trust, integrity, and communicate openly with a positive can do attitude and constructively challenge one another Customer Focus. We empathize with our customers and obsess about solving their problems Execution with precision, professionalism and urgency Security. It’s the lens through which we implement our processes, procedures, and programs Benefits: Competitive salary + Equity Beautiful office space with many perks Robust benefits package Provident Fund Accident Insurance Flexible working hours and work from home days to support personal well-being and mental health Arkose Labs is an Equal Opportunity Employer that makes employment decisions without regard to race, color, religious creed, national origin, ancestry, sex, pregnancy, sexual orientation, gender, gender identity, gender expression, age, mental or physical disability, medical condition, military or veteran status, citizenship, marital status, genetic information, or any other characteristic protected by applicable law. In addition, Arkose Labs will provide reasonable accommodations for qualified individuals with disabilities. #LI-Hybrid #LI-Midsenior