Principal Engineer - Calix Cloud

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.

Calix is where passionate innovators come together with a shared mission: to reimagine broadband experiences and empower communities like never before. As a true pioneer in broadband technology, we ignite transformation by equipping service providers of all sizes with an unrivaled platform, state-of-the-art cloud technologies, and AI-driven solutions that redefine what’s possible. Every tool and breakthrough we offer is designed to simplify operations and unlock extraordinary subscriber experiences through innovation.

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.

Calix is where passionate innovators come together with a shared mission: to reimagine broadband experiences and empower communities like never before. As a true pioneer in broadband technology, we ignite transformation by equipping service providers of all sizes with an unrivaled platform, state-of-the-art cloud technologies, and AI-driven solutions that redefine what’s possible. Every tool and breakthrough we offer is designed to simplify operations and unlock extraordinary subscriber experiences through innovation.

We are looking for a passionate and skilled AI Agent Development Engineer to join our team and build intelligent, autonomous agents that transform workflows and customer experiences. This is a hands-on role requiring strong technical expertise in AI agent frameworks and integration with enterprise systems.

This position is based in San Jose, CA.

Key Responsibilities

• Design & Build AI Agents: Develop and deploy agents capable of perception, reasoning, and autonomous action.
• Integration: Integrate agents with existing external systems using REST APIs, microservices, and cloud platforms.
• Optimization: Implement best practices for performance, scalability, and security in multi-agent environments.
• Collaboration: Work with product managers and data scientists to align agent capabilities with business needs.
• Innovation: Explore emerging technologies in Generative AI, LLM orchestration, and multi-agent frameworks.

Required Skills & Qualifications:

• 10+ years in software development with exposure to AI/ML projects.
• Bachelor’s or Master’s in Computer Science, AI/ML, or related field.
• Hands-on experience in developing AI agents using frameworks like Google ADK, LangChain, CrewAI, AutoGen, or similar.
• Strong programming skills in Go, Rust, or Python (experience with PL/SQL or Java is a plus).
• Familiarity with LLM integration, prompt engineering, and orchestration of multi-agent workflows.
• Knowledge of vector databases, embeddings, and retrieval-augmented generation (RAG).
• Understanding of Generative AI, NLP, and reinforcement learning concepts.
• LLM inference optimization
• Build SLMS with LORA,QLORA techniques

Preferred:

• Experience building custom AI agents for enterprise workflows (e.g., service request triage, summarization, proactive support).
• Working with agent lifecycle management and AI profiles for model selection and orchestration.
• Exposure to multi-agent collaboration and autonomous decision-making systems

Why Join Us?

• Be part of a team driving AI innovation in telecom and cloud solutions.
• Opportunity to work on cutting-edge projects impacting millions of users.
• Collaborative culture with continuous learning and growth.
• Competitive Benefits and Vacation package.

The base pay range 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:

182,900 - 310,500 USD Annual

All Other US Locations:

159,000 - 270,000 USD Annual

As a part of the total compensation package, this role may be eligible for a bonus. For information on our benefits click here.