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Tellius

Staff Software Engineer

San Francisco , United States

AI overview

Join a high-impact AI team to architect scalable systems for decision-making, utilizing advanced frameworks and optimizing backend services with a focus on collaboration and mentorship.

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.

What You’ll Do

  • 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

What We’re Looking For

Must-Have Experience:

  • 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

Why Tellius

  • 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

Compensation
The expected salary range for this role is $190,000 – $230,000 USD per year.
This range is determined based on factors such as the candidate’s experience, skills, and location, and may vary depending on qualifications. Equity and benefits are also part of the total compensation package.

Tellius

Tellius enables organizations to get faster insights from their data using AI-powered automation. Any user can ask any question across billions of records via a Google-like interface, understand “why” metrics change via automated insights that surface hidden key drivers and trends, and get predictive recommendations — in a self-service manner. Unlike traditional BI tools, Tellius excels at ad hoc and exploratory data analysis, root-cause/trend insights and anomaly detection, and business-friendly advanced analytics.

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Salary
$190,000 – $230,000 per year
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