A platform creating human customer experiences with AI, founded by former executives from Salesforce, Facebook, and Google.

Sierra is an innovative AI company creating a platform to enable businesses to build more human customer experiences with AI. Founded by tech industry veterans Bret Taylor (former Salesforce co-CEO and Facebook CTO) and Clay Bavor (former Google Labs leader), the company is primarily based in San Francisco with growing offices including London.

The Software Engineer, Agent (German speaking) role is a unique opportunity to shape the future of AI-driven customer experiences. You'll be responsible for designing and implementing production-grade AI agents that directly impact Sierra's revenue and growth. This isn't just about prototyping - you'll build powerful, scalable systems that operate in critical production environments across various industries including finance, healthcare, and commerce.

The role offers complete ownership of the Agent Development Life Cycle (ADLC), from initial pilot through deployment and continuous iteration. You'll work directly with leaders at major enterprises and cutting-edge startups in London, implementing AI agents that transform their operations. Your work will directly influence the evolution of Sierra's core platform through close collaboration with research, product, and platform teams.

The ideal candidate brings strong technical expertise in building production systems, excellent problem-solving abilities, and professional fluency in both German and English. Experience with AI/LLM systems, React, TypeScript, or Go is highly valued. The company offers competitive compensation (£170K – £260K plus equity) and comprehensive benefits, reflecting their values of Trust, Customer Obsession, Craftsmanship, Intensity, and Family.

This is an in-person role based in London, offering the opportunity to work at the cutting edge of AI technology while directly impacting how businesses interact with their customers. The position combines technical challenges with customer interaction, making it ideal for engineers who enjoy both building sophisticated systems and seeing their direct impact on business outcomes.

AI Agent Engineering role at Sierra, building production-grade AI agents for enterprise customers, requiring German language skills.

Software Engineer, Agent (German speaking)

Sierra is at the forefront of revolutionizing customer experiences through AI, founded by industry veterans Bret Taylor and Clay Bavor from Salesforce, Facebook, and Google. This role offers an exciting opportunity to join their London office as an AI Agent Engineer, where you'll be responsible for designing and implementing production-grade AI agents that drive revenue and transform how enterprises operate.

The position requires a unique blend of technical expertise and customer-facing skills, as you'll be working directly with leaders at major enterprises and cutting-edge startups. You'll have complete ownership of the Agent Development Life Cycle (ADLC), from initial pilot through deployment and continuous iteration. Your work will involve building highly performant AI agents for various industries including finance, healthcare, and commerce.

Key responsibilities include developing AI agents that outperform human agents in tasks like managing subscription churn, creating industry-specific frameworks, and experimenting with cutting-edge voice models. The role requires professional fluency in both French and English, making it a specialized position for bilingual engineers passionate about AI.

Sierra offers an attractive compensation package (£170K – £260K with equity) and comprehensive benefits including unlimited PTO, full health coverage, and unique perks like free alphorn lessons. The company culture is built on five core values: Trust, Customer Obsession, Craftsmanship, Intensity, and Family, creating an environment that balances high performance with work-life harmony.

This is an ideal role for someone who combines strong technical abilities with excellent communication skills and wants to be at the forefront of AI innovation. The position offers the opportunity to shape the future of AI agents while working with prestigious clients in a rapidly growing company.

AI Agent Engineering role at Sierra, building production-grade AI agents for enterprise customers, requiring French and English fluency.

Software Engineer, Agent (French speaking)

Sierra creates a platform to help businesses build better, more human customer experiences with AI.

Sierra is an innovative AI company creating a platform to enhance customer experiences through artificial intelligence. Led by industry veterans Bret Taylor (OpenAI Board Chair, ex-Salesforce co-CEO) and Clay Bavor (former Google Labs leader), the company is primarily based in San Francisco with growing offices in Atlanta, New York, and London.

As a Data Engineer at Sierra, you'll be instrumental in shaping the company's data strategy and infrastructure. This role offers a unique opportunity to establish the foundations of Sierra's data ecosystem, working directly on systems that power AI-driven customer interactions. You'll be responsible for designing and operating scalable batch and real-time data systems, creating trusted data models, and building pipelines for experimentation, analytics, and AI development.

The position requires strong technical expertise in SQL, Python, and distributed data processing frameworks, combined with experience in data modeling and architecture. You'll work in a fast-paced startup environment, collaborating closely with product, ML, analytics, and GTM teams to deliver data foundations that drive innovation.

Sierra offers competitive compensation ($220K – $340K plus equity) and comprehensive benefits including unlimited PTO, full healthcare coverage, 401(k) matching, and parental leave. The company values Trust, Customer Obsession, Craftsmanship, Intensity, and Family, creating an environment that balances high performance with personal well-being.

This is an exceptional opportunity for a data engineering professional to join a well-funded startup with strong leadership, working on cutting-edge AI technology while helping shape the future of customer experience.

Data Engineer role at Sierra to build scalable data systems and infrastructure for AI-powered customer experiences

Data Engineer

Sierra is revolutionizing customer experiences through AI, creating a platform that enables businesses to build more human-centric interactions. As a Software Engineer, Agent (Spanish speaking), you'll be at the forefront of developing production-grade AI agents that drive revenue and transform how enterprises operate. The role combines technical expertise with customer interaction, requiring fluency in both Spanish and English.

You'll have complete ownership of the Agent Development Life Cycle (ADLC), working directly with leaders at major enterprises and cutting-edge startups in London. Your responsibilities include building, tuning, and evolving AI agents in production environments, from initial pilot through deployment and continuous iteration. Recent projects have involved creating AI agents for telecommunications companies, developing troubleshooting systems, and experimenting with voice models.

The company, co-founded by Bret Taylor (OpenAI Board Chair, former Salesforce co-CEO) and Clay Bavor (former Google Labs leader), operates primarily in-person from offices in San Francisco, Atlanta, New York, and London. Sierra's culture is built on five core values: Trust, Customer Obsession, Craftsmanship, Intensity, and Family. They offer comprehensive benefits including unlimited PTO, full health coverage, parental leave, and equity participation.

The ideal candidate brings experience in building production systems, strong problem-solving skills, and a builder's mindset. Additional valuable skills include experience with AI/LLM systems, React, TypeScript, or Go. This role offers an opportunity to shape the future of AI agent development while working with cutting-edge technology and prestigious clients.

Build and deploy production-grade AI agents at Sierra, working with enterprise clients to transform customer experiences through advanced AI technology.

Sierra Engineering Jobs

A platform creating human customer experiences with AI, founded by former executives from Salesforce, Facebook, and Google.