Staff Software Engineer

Tellius • San Francisco, CA

173d

About The Position

Tellius enables organizations to get faster insights and act upon cloud-scale enterprise data using AI-powered automation. Any user can ask any question across billions of records via a ChatGPT-like interface, understand “why” metrics change via AI insights that surface hidden key drivers and trends, and leverage agentic flows to perform complex multipart analysis easily — in a self-service manner. Unlike traditional BI tools, Tellius excels at ad hoc analysis, deep dives, and business-friendly advanced analytics. We’re looking for a Staff Software Engineer to join our AI team. This is a high-impact, IC-focused role for someone who wants to build scalable AI systems that power real-world decision-making.

Requirements

• 2-6 years of professional software engineering experience
• Deep knowledge of AI engineering and agent frameworks (LangChain, LlamaIndex, or similar)
• Strong backend skills with Python, SQL, and database design
• Experience working with data systems and building scalable infrastructure

Nice To Haves

• Experience with Spark, Scala, or distributed compute frameworks
• Exposure to AI applications in B2B or enterprise environments
• Previous experience at an early-stage startup
• Familiarity with data engineering, ETL pipelines, or analytics workflows

Responsibilities

• Architect and implement core infrastructure for AI agents and orchestration (e.g., LangChain, custom frameworks)
• Build and optimize backend services using Python and SQL to support AI workloads
• Engage with design partners and early customers to validate architecture, use cases, and product direction
• Develop robust data pipelines and work with large, complex datasets
• Contribute to agentic application design, grounding LLMs in structured data and business logic
• Collaborate with AI researchers, product managers, and design to ship production-ready features
• Collaborate with and mentor junior engineers

Benefits

• Work at the cutting edge of AI and decision intelligence
• Small team, big ownership. Your work will directly shape the product
• Opportunity to help define a new category: agentic business intelligence
• Collaborative team with strong product-market momentum

What This Job Offers

• Career Level: Mid Level
• Number of Employees: 101-250 employees