Software Engineer, Agent (Italian speaking) in Bristol

At Sierra, we're creating a platform to help businesses build better, more human customer experiences with AI. These values are the foundation of our work, and we are committed to upholding them in everything we do.

Design and deliver production-grade AI agents: You'll build and ship highly performant, reliable, and intuitive AI agents that are central, mission-critical and drive revenue directly to Sierra's growth.

Drive the Agent Development Life Cycle (ADLC): You'll have complete ownership and autonomy from initial pilot through deployment and continuous iteration. You'll be responsible for building, tuning, and evolving AI agents in production environments, defining the standard for ADLC best practices along the way. You'll work directly with leaders at some of the world's largest enterprises to understand their most pressing business challenges, and build AI agents that transform how they operate at scale. You'll also partner with the most cutting-edge startups in London, embedding AI agents across their entire business stack to drive innovation and efficiency. You'll surface unmet needs, prototype new tools and features, and collaborate with research, product, and platform to shape the future of AI agent development and Sierra's product.

Example projects:

• Design and build AI agents for large telecommunications and media companies that consistently outperform human agents in managing subscription churn.
• Develop and refine AI agents capable of navigating complex customer interactions, like troubleshooting a broken device and personalising product recommendations.
• Create generalisable AI agent frameworks tailored for industry-specific use cases.
• Facilitate design partnerships for new product initiatives, such as new agent architectures, self-service capabilities, and generative agent development.
• Experiment with the latest voice models and figure out how to integrate them at scale to enterprise-grade customers.

What you'll bring:

• Experience building and scaling end-to-end production systems.
• Strong technical problem-solving skills, especially in fast-changing, ambiguous environments.
• A builder and tinker's mindset with high agency - you find creative ways to overcome obstacles and ship.
• Comfort working directly with customers to understand their needs and solve real-world problems.
• Excellent communication skills - clear, direct, and persuasive across technical and non-technical audiences.

Even better:

• Experience building or deploying AI/LLM systems in production.
• Have been a founder or founding engineer - you know what it means to balance craft, ownership, and speed.
• Familiarity with tools that power today's AI agents: eval frameworks, agent tooling, RAG pipelines, and prompt engineering.
• Prior experience with React, TypeScript, and/or Go.
• Previous roles where you interfaced with customers or led technical projects with external stakeholders.

Our values:

• Trust: We build trust with our customers with our accountability, empathy, quality, and responsiveness. We build trust in AI by making it more accessible, safe, and useful.

We want our benefits to reflect our values and offer the following to full-time employees:

• Flexible (unlimited) paid time off.
• Medical, dental, and vision benefits for you and your family.
• Life insurance and disability benefits.
• Retirement plan dependent on country of employment.
• Parental leave.
• Fertility and family building benefits through Carrot.
• Lunch, as well as delicious snacks and coffee to keep you energised.
• Discretionary benefit stipend giving people the ability to spend where it matters most.
• Free alphorn lessons.

These benefits are further detailed in Sierra's policies, may vary by region, and are subject to change at any time, consistent with the terms of any applicable compensation or benefits plans. Eligible full-time employees can participate in Sierra's equity plans subject to the terms of the applicable plans and policies.

We're working to bring the transformative power of AI to every organization in the world. To do so, it is important to us that the diversity of our employees represents the diversity of our customers. We believe that our work and culture are better when we encourage, support, and respect different skills and experiences represented within our team.

We strive to evaluate all applicants consistently without regard to race, colour, religion, gender, national origin, age, disability, veteran status, pregnancy, gender expression or identity, sexual orientation, citizenship, or any other legally protected class.