Test Development Engineer - Network

Island is shaping the future of work - creating an enterprise workspace for both knowledge workers and agents - where access, security, and AI-powered productivity are built in. Our enterprise agentic control plane boosts productivity across devices, browsers, applications, networks, and data while protecting sensitive information, simplifying access, and helping enterprises scale AI safely. Behind all of that is a team of people who care deeply about their craft and want to do the biggest and best work of their careers. At Island, character and drive matter more than your resume. Backed by Coatue Management, Insight Partners, Sequoia Capital, Cyberstarts, and other world-class investors, Island is used by millions of people at some of the planet’s largest enterprises. Come build with us. Together, we’re changing how the world works. Our Network Quality Group is looking for an excellent Network Test Development Engineer. The position requires deep understanding and hands-on experience in design and implementation of both manual and automated tests, to ensure a high quality product delivery to Island’s customers. As a Network Test Development Engineer, you'll own the quality of Island's Enterprise Network products: ZTNA, SWG, SASE, and VPN. As Part of this role you will: Design, implement and run both manual and automated test scenarios. Work closely with the R&D engineering teams to ensure new features and product releases are delivered in high quality.. Lead test solution innovations to reduce test time and improve overall product quality, covering ZTNA policy enforcement, SWG traffic inspection, SASE routing, and VPN tunneling, at both the end-to-end and component level. Build and manage test environments that reproduce real customer topologies, including varied network conditions, identity providers, operating systems, and browsers. Plan and execute manual testing for new releases where automation doesn't yet reach, and convert repeatable manual cases into automated ones. Fix bugs both in test suites and in various parts of Island’s customer-facing products. Requirements: 4+ Years of experience in manual test design. Hands-on experience with AI coding tools and agents (e.g. Claude Code, Cursor) to write, debug and maintain test code. Experience in automation test development for Enterprise product - Advantage Strong understanding of network protocols and how traffic moves: TCP/IP, TLS, DNS, HTTP/S, proxies, and tunneling. Hands-on experience testing security or networking products: ZTNA, SWG, SASE, VPN, CASB, or firewalls. A degree in computer science or related field - Advantage Data Privacy You can find information on how we process and protect your personal data in our Employee & Applicant Privacy Notice. For any privacy-related questions, contact us at privacy@island.io.