Senior Sales Engineer - Major Accounts

The Calix platform enables Communication Service Providers (CSPs) of all sizes to transform and future-proof their businesses. Through real-time data, automation, and actionable insights delivered via Calix One — our cloud-first, AI-powered platform — CSPs can simplify operations, collapse cost, and accelerate innovation. Calix One brings together the automation of everything and the experience of one, empowering customers to deliver differentiated subscriber experiences while driving acquisition, loyalty, and revenue growth. This is the Calix mission: to enable CSPs of all sizes to simplify, innovate, and grow, strengthening both their businesses and the communities they serve. 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. The Sales Engineer will drive business growth by engaging Tier 2 Major Accounts, designing advanced broadband and cloud solutions, and leading the adoption of innovative technologies. This role serves as a technical advisor and trusted partner to clients, collaborating closely with sales and product teams to deliver measurable business outcomes aligned with strategic account objectives. Key Responsibilities: Account Management & Business Development Manage assigned T2 Major Accounts to foster ongoing business relationships and support revenue growth. Proactively identify and cultivate new opportunities within assigned accounts, expanding market reach and driving incremental revenue. Establish long-term trusted relationships with key stakeholders, including technical staff and senior management. Technical Solution Design & Delivery Architect and deliver network and cloud solution designs leveraging a broad portfolio of technologies, using a consultative approach to align solutions with client business requirements and desired outcomes. Lead the design and implementation of advanced solutions for customer engagement, network analytics, and operational automation, including AI-driven initiatives where applicable. Integrate cloud SaaS offerings with customer BSS/OSS environments, ensuring seamless automation and operational efficiency. Assist customers in configuration and testing of hardware and software platforms in lab, field trials, and production networks, guiding on technical best practices. Client Engagement & Representation Deliver technical presentations and demonstrations to client technical staff and senior management, including C-level executives. Support the preparation and response process for RFIs and RFPs. Represent the company by sharing expertise on solutions and staying informed on industry technologies and trends; apply this knowledge to assist clients and internal teams. Collaboration & Continuous Improvement Collaborate with cross-functional teams on continuous product, education, training, testing, and demonstration enhancements. Partner closely with Sales to deliver technical sales-oriented presentations and support strategic account planning. Contribute to the development and refinement of solution playbooks, interop guides, and best practices for T2 Major Accounts. Qualifications: Education & Experience Bachelor’s degree in Electrical Engineering, Computer Science, or related field (BSEE or BSCS preferred). Experience working with Tier 1 & 2 service providers or Open Access service providers is highly desirable. Industry certifications (e.g., Wi-Fi, MEF, Cisco, Juniper, Cloud Computing Professional Certification) are a plus. Technical Skills Strong technical familiarity with Layer 2 and Layer 3 broadband access network architectures and fiber-based broadband access systems (e.g., XGS-PON, GPON). Knowledge of Wi-Fi technology and in-home network solutions (Wi-Fi 6, Wi-Fi 7, mesh networking). Understanding of service provider network architecture and technologies (BNG, MPLS, L2/L3 access, photonic transport). Proficiency with service provider routing protocols (BGP, OSPF, ISIS, SR) and transport functions (L2/3 VPN). Experience with protocols and standards for broadband CPE management (TR-069/CWMP, TR-369/USP, TR-181, TR-098, TR-157). Working knowledge of systems integration concepts and technologies such as RESTful APIs, JSON. Familiarity with emerging technologies and trends, such as cloud-based solutions (SaaS), software-defined networking (SDN), and AI/ML frameworks. Professional Skills Demonstrated excellence in customer engagement and relationship management. Outstanding interpersonal skills and a proven ability to synthesize and interpret complex issues into actionable solutions. Superior presentation, written communication, and public speaking abilities at all organizational levels. Recognized as a proactive self-starter and effective change agent within organizations. Strong work ethic, consistently exhibiting determination, integrity, and urgency to meet deadlines and deliver outcomes. Travel Requirements Willingness and ability to travel within North America up to 50% of the time to support customer engagements. Valid driver's license required. This is a remote-based position located in the United States or Canada. Please note that as part of the recruitment and hiring process, there is an in-person meeting that will take place. #LI-Remote The on-target earnings for this position varies based on the geographic location. More information about the pay range specific to candidate location and other factors will be shared during the recruitment process. Individual pay is determined based on location of residence and multiple factors, including job-related knowledge, skills and experience. San Francisco Bay Area: 198,000 - 297,000 USD Annual Select US Metros and States: 172,000 - 258,000 USD Annual Other US Locations: 155,000 - 233,000 USD Annual For information on our benefits click here. 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 View email address on click.appcast.io. The Calix platform enables Communication Service Providers (CSPs) of all sizes to transform and future-proof their businesses. Through real-time data, automation, and actionable insights delivered via Calix One — our cloud-first, AI-powered platform — CSPs can simplify operations, collapse cost, and accelerate innovation. Calix One brings together the automation of everything and the experience of one, empowering customers to deliver differentiated subscriber experiences while driving acquisition, loyalty, and revenue growth. This is the Calix mission: to enable CSPs of all sizes to simplify, innovate, and grow, strengthening both their businesses and the communities they serve. We’re at the forefront of a once‑in‑a‑generation change in the broadband industry. Join us as we innovate, help our customers reach their potential, and connect underserved communities with unrivaled digital experiences. To learn more, visit the Calix web site at 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 View email address on click.appcast.io; or Call us at View phone number on click.appcast.io. Calix is a Drug Free Workplace. You may access a copy of Calix Candidate Privacy Policy HERE and other Calix Privacy Policies HERE.