4 days ago
Base Salary
$230k - $390k/yr
Responsibilities
- Build feedback loops, evaluation systems, memory, signals, and decisioning infrastructure that help long-running agents improve from outcomes.
- Design and ship agents that pursue complex business outcomes over days, weeks, or months across voice, SMS, email, and other channels.
- Develop reusable systems, abstractions, and tools that make future Horizon agents faster and easier to launch.
- Build across orchestration, integrations, data, memory, signals, decisioning, observability, and multi-channel engagement.
- Identify platform gaps through hands-on implementation and help define Horizon’s architecture and roadmap.
- Translate validated prototypes into durable product capabilities and support successful handoff for continued deployment.
- Work directly with customers to understand complex business processes and connect customer problems to product and technical implementation.
Requirements
- At least two years of professional software engineering experience.
- Experience building and scaling end-to-end production systems.
- Strong platform and systems engineering fundamentals.
- Experience with Python, TypeScript, or Go and React.
- Ability to move between customer problems, product design, and technical implementation.
- Strong technical judgment in ambiguous, fast-changing environments and a builder’s mindset for zero-to-one product development.
- Comfort working directly with customers and understanding complex business processes.
- High agency, adaptability, and clear communication.
- Preferred experience as a founder, founding engineer, or early startup engineer.
- Preferred experience building workflow, orchestration, event-driven, or distributed systems and platforms or reusable infrastructure for other engineers.
- Preferred experience building or deploying AI and LLM-powered products.
- Preferred familiarity with enterprise integrations, APIs, data pipelines, and systems of record.
- Preferred experience in complex industries such as financial services or healthcare.
Benefits
- Flexible unlimited paid time off.
- Medical, dental, and vision benefits for employees and families.
- Life insurance and disability benefits.
- Retirement plan dependent on country of employment.
- Parental leave.
- Fertility and family-building benefits through Carrot.
- Lunch, snacks, and coffee.
- Discretionary benefit stipend.
- Free alphorn lessons.
- Full-time employees may participate in the company’s equity plans subject to applicable terms and policies.
- The company is primarily in-person and based in San Francisco, with offices across North America, Europe, and Asia; benefits may vary by region.
Tech Stack
Categories
About Sierra
Sierra builds an enterprise conversational AI platform that powers customer service and other customer-facing interactions for large organizations. The company sells SaaS and deployed solutions that integrate with enterprise systems and meet security and compliance requirements. Headquartered in San Francisco with offices across North America, Europe, and Asia-Pacific, Sierra was co-founded by Bret Taylor and Clay Bavor, longtime leaders at Salesforce, Facebook, and Google.