Security Web Gateway R&D Engineer

About the Team Our team is dedicated to elevating the level of cybersecurity to fully support ByteDance as well as our clients' digital journey. We aim high at building the next-generation cybersecurity. Rooted from years of practical experience in the enterprise security domain within ByteDance, the team now runs as a business. We provide a comprehensive set of security capabilities to help our clients develop a Secure Access Service Edge(SASE) architecture with simplicity and convenience. The team is agile, efficient and open. Your idea matters. We are expanding to APAC, Middle East, and Europe markets. Join us, and be part of the excitement of making a real difference. Job Responsibilities - Design and develop the application proxy and security gateway architecture for Sealsuite, building a highly available, high-performance, and scalable system. - Drive feature development and technical optimization for Zero Trust (ZTNA), Secure Web Gateway (SWG), Cloud Access Security Broker (CASB), and AI security solutions, supporting international business scenarios. Minimum Qualification(s) - Bachelor’s degree or above in Computer Science or a related field, with at least 1 year of development experience. - Proficient in at least one programming language such as C++, Go, Java, or Rust; familiar with databases, caching systems, message queues, and long-lived connections. - Solid foundation in Linux systems and networking, with a strong commitment to engineering excellence and code quality. - Experience in Layer 4/Layer 7 proxy, security gateway, or VPN development; capable of analyzing and solving complex problems in high-concurrency and large-scale network environments. - Self-motivated, proactive, with strong teamwork, communication skills, and a customer-oriented mindset (B2B focus). Preferred Qualification(s) - Experience in designing highly available and disaster recovery architectures; hands-on experience with microservices and high-concurrency platforms. - Experience in developing AI security gateway products, with independent insights and a strong understanding of AI security.