Software Engineer II, AI Security

Summary/Objectives Tanium is seeking a Software Engineer II to help build a new AI Security solution that enables the world's largest enterprises to secure AI agents and the endpoints they run on. In this full-stack role with a strong emphasis on backend engineering, you will design and develop high-scale, distributed systems that give customers visibility into and control over agentic AI across their environments. The ideal candidate brings a deep understanding of building reliable, performant services at scale, a strong foundation in security principles, and hands-on familiarity with the technologies that power AI agents and agent harnesses, such as LLM integrations, tool-calling frameworks, and the Model Context Protocol. This is an opportunity to shape a product at the forefront of AI security and make a significant impact at a company dedicated to transforming how organizations manage and secure their technology environments. Essential Job Functions • Contribute to the design and development of high-scale, distributed backend systems that give customers visibility into and control over agentic AI across their environments • Build services and integrations using LLM APIs, tool-calling frameworks, and the Model Context Protocol (MCP), and design retrieval (RAG) and data pipelines that support AI-driven capabilities • Use AI coding assistants and agent tooling effectively in day-to-day development, and review, refactor, and debug AI-generated code with sound judgment • Build and maintain Tanium's products alongside an agile development team • Design, develop and test new product ideas from the ground up while working with product management for feedback and input • Work on small teams that tackle big challenges in common components like a common data service tasked with unifying and consolidating endpoint data across the entire ecosystem, handling time series data that drive dashboarding and reporting, and exposing data externally through GraphQL enabling partners (like Salesforce) to easily integrate • Delivering higher level services enabled by our core services that directly enable our products and focus on everything from security to operations to auditing Minimum & Preferred Job Qualifications • Education • Bachelor's degree in Computer Science or a related field preferred, or equivalent experience • Experience • 3+ years of industry software engineering experience • Experience designing and building high-impact, high-performance, scalable, observable, and maintainable backend services and APIs • Experience building and shipping AI-powered products or agents at scale, including LLM integrations and tool-calling • Hands-on experience building a Model Context Protocol (MCP) server or integration that ran in a production environment • Experience building retrieval-augmented generation (RAG) and the data pipelines that support it • Experience building backend services and enterprise web applications that serve large user bases (for example, millions of users) • Knowledge of at least one of Golang (preferred), Node.js, Python, Ruby, or Rust • Experience with React, Typescript, Javascript, and other front-end technologies and frameworks • Ability to work with relational databases such as Postgres, SQL, or MySQL • Experience with HTTP API design and development • Experience with modern software engineering and automation tools such as Git and Jenkins • Preferred: Foundation in security principles, such as secure design, authentication and authorization, and threat modeling • Other • Demonstrates sound judgment for balancing between rapid development, long-term code maintainability and supportability • Believes in the power of and the need for writing automated tests as part of development • Experienced