About this role
Salary: £100,000 - 100,000 per year
Requirements: Experience building and scaling end-to-end production systemsStrong technical problem-solving skills, especially in fast-changing, ambiguous environmentsA builder and tinkerers mindset with high agencyComfort working directly with customers to understand their needs and solve real-world problemsExcellent communication skills across technical and non-technical audiencesProfessional fluency in both Spanish and EnglishExperience building or deploying AI/LLM systems in productionExperience as a founder or founding engineer is a plusFamiliarity with eval frameworks, agent tooling, RAG pipelines, and prompt engineering is a plusPrior experience with React, TypeScript, and/or Go is a plusPrevious roles interfacing with customers or leading technical projects with external stakeholders is a plus Responsibilities: Design and deliver production-grade AI agents that are highly performant, reliable, and intuitiveBuild and ship AI agents that are central and mission-critical to our growthOwn the Agent Development Life Cycle from initial pilot through deployment and continuous iterationBuild, tune, and evolve AI agents in production environmentsPartner directly with large enterprises and cutting-edge startups to understand business challenges and build AI agents at scaleWork with customers to transform how they operate and embed AI agents across their business stackSurface unmet needs from customer work and prototype new tools and featuresCollaborate with research, product, and platform teams to shape the future of AI agent development and our productDesign and build AI agents for telecommunications and media companiesDevelop AI agents that handle complex customer interactions, such as troubleshooting and product recommendationsCreate generalizable AI agent frameworks for industry-specific use casesFacilitate design partnerships for new product initiativesExperiment with the latest voice models and integrate them at scale for enterprise-grade customers Technologies: AIAI AgentsSupportLLMRAGReactTypeScriptCTOSalesforceVR More:
We are Sierra, building a platform that helps businesses create 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, Paris, Madrid, Munich, Singapore, Japan, and Sydney. Our culture is guided by Trust, Customer Obsession, Craftsmanship, Intensity, and Family. We were founded by Bret Taylor and Clay Bavor, and we offer full-time employees benefits including flexible unlimited paid time off, medical, dental, and vision coverage for employees and families, life insurance and disability benefits, a retirement plan depending on country of employment, parental leave, fertility and family-building support through Carrot, lunch, snacks, coffee, a discretionary benefit stipend, and free alphorn lessons. Eligible full-time employees may also participate in our equity plans, subject to applicable terms and policies.
last updated 34 week of 2026