Strategist, Agent Development (Flemish Speaking)

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

Benefits offered by this job

Flexible PTO

Medical/dental/vision benefits

Retirement plan

Parental leave

Equity plans

Lunch, snacks, and coffee

Job summary

Sierra is building a platform to help companies create better, more human customer experiences with AI. We partner with SoftBank, Uber, Rivian, CLEAR and Sutter Health, reflecting our global reach. We are primarily an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia.

Our co-founders bring leadership experience from OpenAI, Salesforce, Facebook, and Google. Our culture emphasizes Trust, Customer Obsession, Craftsmanship, Intensity, and Family.

Qualifications

• Genuine enthusiasm for working directly with customers and understanding their businesses.
• Clear, direct, persuasive communication with technical and non-technical audiences.
• Strong analytical and critical-thinking skills to break down complex problems.
• Comfort reading API documentation, data models and system architecture.
• Experience managing multiple complex, high-visibility projects.
• Experience building/deploying AI or LLM agents in production.
• Experience as founder, founding team member, or operator.
• Degree in CS/Engineering or related field; MBA valued.

Responsibilities

• Own the agent development lifecycle from scope to launch and production iteration.
• Translate customer goals into effective agents and improve performance.
• Advise enterprise leaders by shaping AI strategies to meet goals.
• Lead customer sessions, troubleshoot issues, and keep development on track.
• Surface unmet needs and work with teams to shape product direction.
• Scope and launch agents for retention, troubleshooting, recommendations, and regulated interactions.
• Partner with product teams to develop new capabilities and architectures.
• Define agent evaluation methods and drive measurable improvements.

Skills

Customer engagement

Communication

Analytical thinking

Technical aptitude

Project management

AI/LLM experience

Founder experience

CS/Engineering degree

Education

Degree in CS/Engineering

Job description

Salary: £100,000 - 100,000 per year

Requirements

• Genuine enthusiasm for working directly with customers, understanding their businesses and needs, navigating complex organizations, and building trusted relationships.
• Clear, direct, and persuasive communication with technical and non-technical audiences.
• Strong analytical and critical-thinking skills to break down complex problems, identify risks early, and adapt to changing circumstances.
• Technical aptitude, including comfort reading API documentation, understanding data models and system architecture, and following engineering tradeoffs in design discussions.
• A track record of managing multiple complex, high-visibility projects and driving them to outcomes.
• Preferred: Experience building or deploying AI or LLM agents in production, including hands-on experience with evaluation frameworks, agent tooling, RAG, or prompt engineering, and working closely with technical counterparts.
• Preferred: Experience as a founder, founding team member, or operator, balancing craft, ownership, and speed.
• Preferred: A degree in Computer Science, Engineering, Mathematics, or a related technical field, or equivalent practical experience; an MBA or comparable experience at the intersection of technology and business is also valued.

Responsibilities

• Own the agent development lifecycle, taking agents from initial scope through conversation design, tooling, evaluation, launch, and continuous iteration in production.
• Translate customers business goals into effective agents, and continually improve agent performance and real-world outcomes.
• Advise enterprise leaders by understanding their business goals and shaping AI strategies to achieve them.
• Partner with customers working teams, lead working sessions, troubleshoot issues, and make decisions that keep development on track for launch.
• Surface unmet customer needs and share them with research and platform teams to help shape our product direction.
• Scope and launch agents for use cases such as customer retention, device troubleshooting, product recommendations, and complex regulated interactions.
• Partner with product teams and customers to develop new capabilities, agent architectures, and self-service tooling.
• Define agent evaluation methods and quality standards, then use metrics to drive measurable improvements.

Technologies

• AI
• API
• LLM
• RAG
• Salesforce
• AI Agents
• CTO
• Support
• VR

More

Were Sierra, building a platform that helps companies create better, more human customer experiences with AI.

We partner with industry leaders including SoftBank, Uber, Rivian, CLEAR, and Sutter Health.

We are primarily an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia.

Our co-founders are Bret Taylor and Clay Bavor, whose backgrounds include leadership roles at OpenAI, Salesforce, Facebook, and Google.

Our culture is guided by Trust, Customer Obsession, Craftsmanship, Intensity, and Family.

• full-time employees flexible paid time off
• medical, dental, and vision benefits
• life and disability insurance
• 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
• Eligible full-time employees may participate in our equity plans

Benefits may vary by region and are subject to applicable plans and policies.

We value a diverse team and encourage people to apply even if their experience does not precisely match the role.

last updated 40 week of 2026