Software Engineer, Demo Platform

Sierra • San Francisco, CA

5d • Onsite

About The Position

At Sierra, we’re creating a platform to help businesses build better, more human customer experiences with AI. We are primarily an in-person company based in San Francisco, with growing offices in Atlanta, New York, London, France, Singapore, and Japan.
We are guided by a set of values that are at the core of our actions and define our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and Family. These values are the foundation of our work, and we are committed to upholding them in everything we do.
Our co-founders are Bret Taylor and Clay Bavor. Bret currently serves as Board Chair of OpenAI. Previously, he was co-CEO of Salesforce (which had acquired the company he founded, Quip) and CTO of Facebook. Bret was also one of Google's earliest product managers and co-creator of Google Maps. Before founding Sierra, Clay spent 18 years at Google, where he most recently led Google Labs. Earlier, he started and led Google’s AR/VR effort, Project Starline, and Google Lens. Before that, Clay led the product and design teams for Google Workspace.
Sierra’s engineering team has ~40 mostly senior engineers, including Mihai, Belinda, Arya, and Wei. We work in small, autonomous teams oriented around customer problems. In this role, your customer is our Sales Engineering and GTM team—and, through them, every prospect who meets Sierra for the first time. Here are some examples of what you’ll work on:
Own Sierra’s demo platform: Design and build the systems that power our demo environments— multi-tenant “mock orgs,” seeded data, configuration, and guardrails that make demos reliable, fast, and safe.
Build first-class demo features into Agent Studio and the core product: Create UI and workflows so SEs can spin up, reset, and manage tailored demo accounts in minutes—not hours—without calling an engineer.
Use AI to personalize and prepare demos: Leverage Sierra’s own agent stack (and other models) to research prospects, synthesize realistic org structures, conversations, and data, and auto-configure agents and flows for specific industries and use cases.
Expose “under the hood” views for SEs and prospects: Add thoughtful panels, timelines, and visualizations that make it easy to show how Sierra thinks, decides, and integrates—without overwhelming the UI or leaking sensitive details.
Build internal tools that let SEs move like engineers: Create templates, libraries, and scripting hooks that let SEs compose complex demo scenarios and edge cases with guardrails instead of raw access to production systems.
Instrument and iterate: Track how demo flows perform (time to “aha”, win rates by template, setup time per SE), and use that data to drive your roadmap alongside Sales Engineering, Product, and Agent Studio.
Ship real production code: Everything you build should be robust enough to live in the main product—tested, observable, and maintainable, not a separate demo toy that rots over time.

Requirements

• A passion for being on the frontier of AI products.
• Motivation and high-agency to drive outcomes - we have a high-autonomy culture and each team member has lots of agency to overcome obstacles and achieve customer impact.
• Alignment to our company values throughout your work, notably finding a balance between Craftsmanship, Customer Obsession, and Competitive Intensity.
• 4+ years hands-on experience building production products and systems.
• Experience and comfort to build and ship full-stack solutions.
• Degree in Computer Science or related field, or equivalent professional experience.

Nice To Haves

• Experience building internal tools for Sales Engineering, GTM, or customer-facing teams (demo environments, PoC tooling, “sandbox” infra, sales engineering platforms, etc.).
• Experience designing or maintaining multi-tenant demo or sandbox environments, including synthetic/anonymized data pipelines.
• A track record of building with Go and TypeScript (or similar languages) in production systems.
• Background with AI/LLM-driven products: RAG, evals, agent frameworks, or generative UI experiences.
• A strong product sense and sharp eye for design—you care how things feel in a live demo, not just that they technically work.
• Prior work that bridged engineering and revenue (e.g., sales engineering, customer engineering, founder/founding engineer, or work on lighthouse deals).

Responsibilities

• Own Sierra’s demo platform: Design and build the systems that power our demo environments— multi-tenant “mock orgs,” seeded data, configuration, and guardrails that make demos reliable, fast, and safe.
• Build first-class demo features into Agent Studio and the core product: Create UI and workflows so SEs can spin up, reset, and manage tailored demo accounts in minutes—not hours—without calling an engineer.
• Use AI to personalize and prepare demos: Leverage Sierra’s own agent stack (and other models) to research prospects, synthesize realistic org structures, conversations, and data, and auto-configure agents and flows for specific industries and use cases.
• Expose “under the hood” views for SEs and prospects: Add thoughtful panels, timelines, and visualizations that make it easy to show how Sierra thinks, decides, and integrates—without overwhelming the UI or leaking sensitive details.
• Build internal tools that let SEs move like engineers: Create templates, libraries, and scripting hooks that let SEs compose complex demo scenarios and edge cases with guardrails instead of raw access to production systems.
• Instrument and iterate: Track how demo flows perform (time to “aha”, win rates by template, setup time per SE), and use that data to drive your roadmap alongside Sales Engineering, Product, and Agent Studio.
• Ship real production code: Everything you build should be robust enough to live in the main product—tested, observable, and maintainable, not a separate demo toy that rots over time.

Benefits

• Flexible (Unlimited) Paid Time Off
• Medical, Dental, and Vision benefits for you and your family
• Life Insurance and Disability Benefits
• Retirement Plan (e.g. 401K, pension) with Sierra match
• Parental Leave
• Fertility and family building benefits through Carrot
• Lunch, as well as delicious snacks and coffee to keep you energized
• Discretionary Benefit Stipend giving people the ability to spend where it matters most
• Free alphorn lessons

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 251-500 employees