Calix provides the cloud, software platforms, systems and services required for communications service providers to simplify their businesses, excite their subscribers and grow their value. This is a remote position that can be based anywhere in the United States or Canada. Our team is growing and we’re looking for a highly motivated, collaborative, and results oriented software engineer with a strong background in building high-performance, real-time high network traffic inspection technology. The ideal candidate must be an excellent individual contributor, detail-oriented, self-motivated with strong communication skills and the ability to work effectively both independently and with others in a small team. You will be part of a highly talented team that is constantly innovating, improving, and expanding the network intelligence technology at the core of the Calix platform. Responsibilities and Duties: Develop real-time network intelligence technology and platform software for cloud managed consumer and business secure internet gateway products. Research, prototype, and develop advanced cybersecurity features aimed at protecting millions of homes and businesses. Develop detailed design documentation for new features and capabilities. Propose and implement tools to accelerate software system development and debug environments. Propose and implement built in diagnostics and test scripts to help reliability and supportability. Work with product management and solutions engineering to write software functional specification and integration documents. Participate and support in fixing issues arising from customer sites. Analyze system scalability, interworking issues and perform root cause analysis of system issues. Keep abreast of the latest technologies within our product area. The candidate is expected to demonstrate a deep sense of product ownership with a strong focus on customer satisfaction. Qualifications: 5+ years of experience designing, coding, and evolving high-performance real-time network security and intelligence software products. Deep understanding and practical experience with linux networking fundamentals: netfilter, conntrack, qdisc, iptables/nftables. Knowledge and experience with a variety of network traffic pattern & behavioral matching techniques, including: compiler work for building DFAs and NFAs, regex, behavioral and heuristic network traffic classification. Experience developing advanced network intelligence solutions and familiarity with leveraging ML for application detection, threat detection, and/or device typing. Knowledge and experience designing high-performance networking solutions with one or more of VPP, DPDK, XDP, eBPF, iptables/ebtables/nftables, qdiscs, hardware flow accelerators, FPGAs. Expert level understanding and experience working with L2-L7 protocol details. Organized and goal-focused, ability to deliver in a fast-paced environment. Excellent analytical, integration, and debugging skills. Excellent oral and written communication skills. Location: Remote-based position located in the United States or Canada. #LI-Remote About Us PLEASE NOTE: All emails from Calix will come from a '@calix.com' email address. Please verify and confirm any communication from Calix prior to disclosing any personal or financial information. If you receive a communication that you think may not be from Calix, please report it to us at talentandculture@calix.com . Calix delivers a broadband platform and managed services that enable our customers to improve life one community at a time. We’re at the forefront of a once in a generational change in the broadband industry. Join us as we innovate, help our customers reach their potential, and connect underserved communities with unrivaled digital experiences. This is the Calix mission - to enable CSPs of all sizes to Simplify. Innovate. Grow. If you are a person with a disability needing assistance with the application process please: Email us at calix.interview@calix.com ; or Call us at +1 (408) 514-3000. Calix is a Drug Free Workplace.