Full Stack Engineer, New Venture (Senior to Staff level)

Position Overview

At Sanity.io, we're building the future of AI-powered Content Operations. Our AI Content Operating System enables teams to model, create, and automate content seamlessly, powering companies like SKIMS, Figma, Riot Games, Anthropic, COMPLEX, Nordstrom, and Morningbrew. As a Senior Full Stack Engineer, you’ll tackle one of AI's toughest problems – helping machines understand and use human-created content – by designing and building innovative systems that structure, enrich, and deliver content at scale. Join a small, cross-functional team at the forefront of AI research and product development, where every day brings new challenges and breakthroughs.

Key Responsibilities

• Design and build AI-driven features and agents that revolutionize how content is created, structured, and delivered.
• Leverage LLMs to analyze unstructured content (e.g., plain text) and infer structured data and metadata, making content more organized and AI-ready.
• Collaborate with design and product teams to prototype intuitive user experiences that merge AI automation with human oversight.
• Apply emerging AI and ML research—from prompt engineering to dataset optimization—to create scalable, reliable product features.
• Stay at the forefront of LLM research, understanding model behaviors, limitations, and capabilities to inform system design decisions.
• Write clean, maintainable, and well-tested code.
• Contribute to team best practices for AI development, ensuring solutions are robust and sustainable at scale.
• Prototype and iterate on user experiences to provide value and delight customers.

Required Qualifications

• Based in the San Francisco Bay Area and able to work at least 2 days per week in our San Francisco office.
• 5+ years of software engineering experience, ideally building user-facing products.
• Deep expertise in Node.js and React.js—our core tech stack.
• Hands-on experience with LLM APIs or AI-powered applications, including building evaluation pipelines and designing performance metrics.
• Strong architectural design skills with the ability to create scalable, well-structured systems and clean APIs.
• A naturally curious and creative problem solver who loves to experiment and learn new technologies.
• Collaborative and communicative, with a proven ability to work effectively in cross-functional teams.
• Excited about augmenting your work with AI, whether through tools like Cursor, GitHub Copilot, or custom workflows.

Preferred Qualifications

• Bonus: Comfortable with Python for data/ML tasks.

Benefits & Perks

• A highly skilled, inspiring, and supportive team.
• A positive, flexible, trust-based work environment that supports long-term professional and personal growth.
• A global, multi-cultural team of colleagues and customers.
• Comprehensive health plans and perks.
• A healthy work-life balance that accommodates individual and family needs.
• Competitive salary and stock options program.
• Base Salary Range: $220,000 - $255,000 annually.