Lead advanced solution architecture activities with Calix key customers in the United Kingdom and elsewhere. Job Description We are looking for dynamic, curious, motivated, and self-starting Sales Engineer/Solution Architect to join our team in the UK. This position is responsible for technical engagement with the customer architects at CTO level. You will be responsible for understanding a customer’s existing environment, designing target architectures, and hands-on implementation of designs. The candidate must be independent, proactive and comfortable working in small teams with similarly elite personnel. In this role, you will build strong trusted relationships, interact with, and influence senior technical staff and CTOs within Calix’s network operator customers. You will have the ability to influence their technology choices and network architecture. The ideal candidate has a strong technical background, experience from a similar position with a proven track record of selling advanced network solutions to network operators at the highest level. Experience Requirements At least 10 years of network related experience in ISP/Telco environments In-depth knowledge of OSI layer 3 networks and protocols, including broadcast, multicast, anycast concepts, routing, etc. In-depth knowledge with various routing protocols (BGP, OSPF, ISIS, MPLS) In-depth knowledge of OSI layer 2 and practical experience, including various flavors of STP, ARP, QOS, etc. In-depth knowledge of TCP/IP networking, load balancing, firewalls, HTTP, SSL, DNS, DHCP Strong ability to troubleshoot complex issues related to hardware, L3/L2 deployment, application behaviors and TCP stack Solid understanding of network security methodologies, including but not limited to: ACLs, Stateful firewalls, VPNs (tunneling, IPsec, PPTP, etc.) Strong knowledge of network management and orchestration platforms Strong knowledge of operational and support (BSS/OSS) systems and understanding interactions with APIs (REST/JSON) including design, integration, and troubleshooting considerations Experience with VLAN Stretching technologies (EVPN, VXLAN) Ability to provide assessment / audit of existing network, infrastructure & services Ability to quickly analyze situations, identify problems, and provide solutions Ability to work independently with minimal oversight and high autonomy Provide leadership and guide customers on technical and operational issues within areas of expertise Strong customer focus, ownership, urgency and drive Strong written and verbal communication skills Preferred additional Skills/Experience Specialty Certifications are preferred Experience with cloud and SaaS technologies and solutions Experience with SDN Experience with Cisco, Juniper and Nokia routing platforms. Skilled in using Visio and other network documentation 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 BSPs of all sizes to Simplify. Innovate. Grow. To learn more, visit the Calix web site at www.calix.com To learn more about our international job opportunities, please visit our International Careers Page 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. You may access a copy of Calix Candidate Privacy Policy HERE and other Calix Privacy Policies HERE.