Software Engineer Agent (Dutch Speaking)

Hackajob Ltd; Leeds; On-site; GBP 90,000 - 110,000; Full time

Benefits offered by this job

Unlimited PTO

Health benefits

Life insurance

Disability benefits

Retirement plan

Parental leave

Equity options

Lunch & snacks

Job summary

Sierra is hiring in the United Kingdom to design and deliver production-grade AI agents that scale for large enterprises. You will own the Agent Development Life Cycle from pilot through deployment and iteration, building and refining agents in production environments.

You will collaborate with leaders at enterprises and partner with London startups to embed AI agents across their tech stacks, shaping the future of AI agent development.

Qualifications

• Experience building and scaling end-to-end production systems.
• Strong technical problem-solving skills in fast-changing, ambiguous environments.
• A builder mindset with high agency and creativity to ship.

Responsibilities

• Design and deliver production-grade AI agents that are highly performant, reliable, and intuitive.
• Own the Agent Development Life Cycle from pilot through deployment and iteration.
• Build, tune, and evolve AI agents in production environments.
• Work directly with leaders at large enterprises to understand business challenges and build AI agents at scale.
• Partner with startups in London to embed AI agents across their business stack.
• Surface unmet needs from customer work and prototype new tools with research, product, and platform.

Skills

Production systems experience

AI/LLM systems in production

Founder/Founding engineer experience

Customer-facing communication

Problem solving in ambiguity

External stakeholder leadership

Education

Tools

React

TypeScript

Go

Job description

Salary: £100,000 - 100,000 per year

Requirements:

• Experience building and scaling end-to-end production systems
• Strong technical problem-solving skills, especially in fast-changing, ambiguous environments
• A builder and tinkerer mindset with high agency and creativity to overcome obstacles and ship
• Comfort working directly with customers to understand their needs and solve real-world problems
• Excellent communication skills across technical and non-technical audiences
• Experience building or deploying AI/LLM systems in production
• Experience as a founder or founding engineer, with the ability to balance craft, ownership, and speed
• Familiarity with tools that power todays AI agents, including eval frameworks, agent tooling, RAG pipelines, and prompt engineering
• Prior experience with React, TypeScript, and/or Go
• Previous roles interfacing with customers or leading technical projects with external stakeholders

Responsibilities:

• Design and deliver production-grade AI agents that are highly performant, reliable, and intuitive
• Own the Agent Development Life Cycle from initial pilot through deployment and continuous iteration
• Build, tune, and evolve AI agents in production environments
• Work directly with leaders at large enterprises to understand business challenges and build AI agents that transform how they operate at scale
• Partner with cutting-edge startups in London to embed AI agents across their business stack
• Surface unmet needs from customer work, prototype new tools and features, and collaborate with research, product, and platform to shape the future of AI agent development and our product
• Design and build AI agents for large telecommunications and media companies that outperform human agents in managing subscription churn
• Develop AI agents for complex customer interactions such as troubleshooting broken devices and personalizing product recommendations
• Create generalizable AI agent frameworks tailored for industry-specific use cases
• Facilitate design partnerships for new product initiatives, including new agent architectures, self-service capabilities, and generative agent development
• Experiment with the latest voice models and integrate them at scale for enterprise-grade customers

Technologies:

• AI
• AI Agents
• LLM
• RAG
• React
• TypeScript
• CTO
• Support
• Salesforce
• VR

More:

We are Sierra, building a platform that helps businesses create 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 offer full-time employees flexible unlimited paid time off, medical, dental, and vision benefits, life insurance and disability benefits, a retirement plan dependent on country of employment, parental leave, fertility and family building benefits through Carrot, lunch, snacks and coffee, a discretionary benefit stipend, free alphorn lessons, and access to equity plans subject to applicable terms. We are committed to building a diverse, inclusive team and encourage applicants to apply even if their experience does not precisely match the role.

last updated 40 week of 2026