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Senior QA Engineer Location: Remote Type: Full-time About Fastn Fastn is on a mission to revolutionize how SaaS companies connect with their customers' environments. Powered by AI, we provide an embedded integration infrastructure that enables SaaS businesses to build, scale, and manage their integration ecosystem effortlessly. With Fastn, companies can launch strategic integrations, create their own app marketplace, and unlock new revenue streams by offering seamless connectivity with the tools their customers already use. But our platform is more than just integrationsits about accelerating market penetration, driving partner-sourced revenue, and delivering smarter, more valuable customer experiences. If youre passionate about ensuring high-quality, scalable, and secure SaaS products, Fastn is the place to be. What Youll Do As a Senior / Lead QA Engineer, you will play a key role in defining, implementing, and optimizing Fastns quality assurance strategy. You will work closely with engineering, product, and customer success teams to ensure that our AI-powered integration platform meets the highest standards of performance, reliability, and security. Your Responsibilities Test Strategy & Automation: Define and execute test automation strategies for API, backend, and UI testing. Scalability & Performance Testing: Design and implement performance, stress, and load testing for high-throughput, low-latency systems handling millions of transactions per second/minute End-to-End Testing: Develop and maintain automated and manual test suites to validate SaaS integrations, API functionality, and AI-driven automation workflows. CI/CD & Release Quality: Work closely with DevOps and engineering teams to integrate automated tests into the CI/CD pipeline, ensuring smooth and reliable deployments. Security & Compliance Testing: Implement best practices for API security testing, authentication validation (OAuth, JWT, OpenID), and compliance adherence (SOC 2, GDPR, etc.). Defect Management: Identify, document, and track bugs, ensuring timely resolution and maintaining high product quality. Collaboration & Leadership: Work cross-functionally with product managers and engineers to define acceptance criteria, review test cases, and mentor junior QA engineers. Monitoring & Observability: Implement tools and frameworks for real-time monitoring of integration health, failure detection, and issue diagnosis. What Were Looking For Were seeking a highly skilled QA leader who is passionate about test automation, performance engineering, and building scalable testing frameworks. If you thrive in high-growth, fast-paced startup environments, this role is for you. Must-Have Skills & Experience 5+ years of experience in software quality assurance, with a strong focus on test automation and performance testing. Expertise in test automation frameworks like Selenium, Cypress, Playwright, or equivalent. Strong programming skills in Python, Java, or JavaScript for test automation. Experience with API testing tools like Postman, RestAssured, or similar. Proven ability to test distributed, high-scale systems handling millions of transactions per second/minute. Hands-on experience with performance testing tools like JMeter, Gatling, or k6. Experience with CI/CD pipelines (GitHub Actions, Jenkins, CircleCI, etc.). Knowledge of cloud platforms (AWS, GCP, or Azure) and containerization (Docker, Kubernetes). Familiarity with security testing practices for APIs and authentication mechanisms. Strong problem-solving skills and ability to lead testing initiatives and mentor junior engineers. Nice-to-Have Skills Experience with AI/ML-driven testing automation. Hands-on experience testing iPaaS, SaaS integrations, or API marketplaces. Familiarity with event-driven architectures, message queues (Kafka, RabbitMQ, etc.), and microservices testing. Why Join Fastn? Define the Future of QA in SaaS Integrations Build and lead the testing strategy for a next-generation AI-powered platform. Work on High-Scale, High-Performance Systems Solve complex testing challenges in distributed architectures. High-Impact, Leadership Role Drive testing automation and mentor a growing QA team. Strong Engineering Culture Collaborate with world-class engineers solving large-scale challenges. Competitive Compensation Market-leading salary, meaningful equity, and a flexible remote work environment. Join Us in Building the Future of SaaS Connectivity! If youre excited to lead testing efforts, automate quality assurance, and ensure high-performance integrations, wed love to hear from you. Apply now and help shape the future of SaaS integrations! Originally posted on Himalayas