Searchability®
Artificial Intelligence Engineer
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Senior Applied AI Engineer / Senior Data Scientist
Salary: Up to £100,000 + Equity
Location: London, Hybrid (3 days per week in the office)
Employment Type: Permanent
Recruitment Partner: Searchability
The Opportunity
Searchability is working with an ambitious AI startup developing a proactive AI assistant designed to transform how businesses manage their everyday work. The company is building intelligent software that connects with existing business applications, understands conversations, identifies commitments, and automates time-consuming workflows.
This isn't another basic chatbot. The focus is on building reliable, intelligent AI systems capable of understanding context, anticipating user needs, and turning complex information into meaningful actions.
We're looking for a Senior Applied AI Engineer / Senior Data Scientist who combines strong machine learning fundamentals with practical software engineering experience and a passion for building real-world AI products.
You'll work in a fast-moving startup environment, helping shape the architecture, reliability, and intelligence of an evolving AI platform.
What You'll Be Doing
- Designing, developing, and deploying AI and machine learning solutions using Python.
- Building and improving LLM-powered applications, intelligent agents, and automated workflows.
- Developing NLP and information extraction capabilities to interpret emails, documents, conversations, and other unstructured data.
- Designing evaluation frameworks to measure AI accuracy, reliability, and performance.
- Identifying model failure modes and improving the quality of AI-generated recommendations.
- Developing scalable data pipelines and infrastructure to support AI applications.
- Exploring human-in-the-loop approaches, ensuring AI systems remain accurate, explainable, and trustworthy.
- Working closely with software engineers and product teams to take ideas from research and experimentation into production.
- Contributing to technical decisions and helping shape the direction of the AI platform.
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What We're Looking For
- Strong commercial experience in Data Science, Applied AI, Machine Learning, or AI Engineering.
- Excellent programming ability with Python, including relevant machine learning and data processing libraries.
- Experience developing or evaluating LLM applications, NLP systems, or AI agents.
- Strong understanding of machine learning fundamentals, experimentation, model evaluation, and statistical analysis.
- Experience working with complex, structured, and unstructured datasets.
- Ability to build robust, scalable solutions rather than focusing exclusively on research or experimentation.
- Experience with cloud technologies such as AWS or GCP.
- Strong problem-solving skills and the ability to work independently in an early-stage environment.
- Comfortable taking ownership of technical challenges and working closely with stakeholders.
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Desirable Experience
- LLM orchestration, multi-step agent workflows, and tool calling.
- Hugging Face Transformers, scikit-learn, PyTorch, or similar frameworks.
- Information extraction, named entity recognition, embeddings, and semantic search.
- Building evaluation pipelines, automated quality checks, and human-in-the-loop systems.
- Data engineering technologies such as SQL, PostgreSQL, BigQuery, Dagster, or dbt.
- Experience with privacy-preserving machine learning, data security, or responsible AI.
- Experience taking machine learning prototypes into production.
- MSc or PhD in Computer Science, Machine Learning, Mathematics, Neuroscience, or another quantitative discipline.
- Previous experience within an AI startup or high-growth technology business.
What's On Offer
- Salary up to £100,000
- Equity in an ambitious AI startup.
- Hybrid working in London, 3 days per week in the office.
- Opportunity to work on cutting-edge agentic AI and intelligent automation technologies.
- Significant technical ownership and influence over product development.
- Collaborative environment working alongside ambitious engineers and product specialists.
- Opportunity to develop AI technology with genuine real-world applications.
Interested? If you're an experienced Data Scientist, Applied AI Engineer, or Machine Learning Engineer who enjoys building intelligent systems and taking complex technical ideas into production, we'd love to hear from you.
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