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Software Engineer, Agent Builder

SierraSan Francisco, CAEngineering
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Salary
$230K - $390K USD
Job type
Full-time
Posted
5 Jun 2026
Status
Open · checked 7d ago

About this role

Role Overview

The Software Engineer, Agent Builder position at Sierra in San Francisco is a full-time in-person role focused on shaping the frontier of customer-facing artificial intelligence. This opportunity suits an experienced full-stack developer who is passionate about advancing generative AI systems and developer tooling.

Key Responsibilities

Design simulation platforms to test AI agents against diverse real-world scenarios.
Build intuitive, no-code content management tools that empower anyone to guide and test AI agents.
Adapt software development methodologies to account for the non-deterministic behavior of artificial intelligence and large language models.
Accelerate agent creation using generative tools such as Cursor and Claude Code.
Develop self-improving systems fueled by real-world interactions, customer feedback, and self-play.

Requirements

At least four years of hands-on experience building production products and systems.
Ability and comfort with building and shipping full-stack solutions.
A degree in Computer Science or a related field, or equivalent professional experience.
High agency, self-motivation, and alignment with company values like Craftsmanship, Customer Obsession, and Intensity.
A genuine passion for working on the frontier of AI products.

Nice to Have

Prior experience building AI-powered products.
A sharp eye for design.
Familiarity with Go and TypeScript.
Background in building developer tooling, programming languages, or databases.
Technical project or team leadership experience.

Skills and Tools

TypeScript
Go
Full-stack development
Developer tooling
Generative AI tools like Cursor and Claude Code

Salary and Benefits

Annual salary range between $230,000 and $390,000 in USD.
Flexible, unlimited paid time off.
Comprehensive medical, dental, and vision benefits for employees and their families.
Life insurance and disability coverage.
Retirement plan options based on the country of employment.
Parental leave alongside fertility and family building benefits via Carrot.
Daily lunch, snacks, and coffee at the office.
Discretionary benefit stipend and free alphorn lessons.
Eligibility to participate in company equity plans.

About the Company

Sierra serves as a leading platform for customer-facing AI agents, helping global brands transform customer service and business growth. Co-founded by Bret Taylor and Clay Bavor, the company maintains an primarily in-person culture based in San Francisco with growing international offices. The workplace operates under core values emphasizing trust, customer obsession, craftsmanship, intensity, and family.

How to Apply

Candidates should visit the official company careers page to submit an application for this role.

Skills and tech stack

TypeScript

Questions candidates ask

What is the salary range for the Software Engineer, Agent Builder role?

The annual salary for this position ranges from $230,000 to $390,000 USD.

Is this position remote?

No, this is primarily an in-person role located in San Francisco, California.

What level of experience is required?

Applicants need a minimum of 4 years of hands-on experience building production products and systems.

What programming languages and tools are relevant to this job?

Relevant skills and tools include TypeScript, Go, full-stack development, and generative tools like Cursor and Claude Code.

What benefits does Sierra offer full-time employees?

Benefits include unlimited paid time off, medical, dental, vision, life and disability insurance, parental leave, fertility benefits through Carrot, equity plans, a discretionary stipend, and daily office meals.

Ready to apply?

The application is on the official Sierra careers page.

Apply on company site