Senior AI Engineer

Elsewhen Ltd; Greater London; Hybrid; GBP 70,000 - GBP 100,000; Full time

Job summary

A leading consultancy in London is seeking a Senior AI Engineer to join their fast-growing team. The role focuses on leveraging LLM capabilities to develop innovative AI-driven solutions. Candidates should possess strong AI engineering and Python skills, experience with API design, and the ability to work collaboratively. The position offers a flexible hybrid work environment, generous benefits, and opportunities for personal development.

Benefits

Private Health Insurance

Generous Leave Policy

Learning and Development budget

Gym Membership Contribution

Qualifications

• Professional AI engineering experience.
• Background in software engineering with Python.
• Hands-on experience building solutions using LLMs.

Responsibilities

• Experiment with POCs using Large Language Models.
• Collaborate on AI-driven projects and maintain documentation.
• Build and deploy LLM-based solutions.

Skills

AI engineering

Python programming

API design

Communication skills

Collaboration

Tools

GCP

FastAPI

Vector databases

Graph databases

Job description

Senior AI Engineer

Elsewhen, a London-based consultancy, designs and builds technology solutions for clients like Spotify, Google, Inmarsat, and Zego. Over the past decade, we have built a workplace prioritising impact, drive, and friendliness. We value outcomes over hours and agility over rigid processes.

Work Environment:

• Hybrid setup: Ideally, we’re looking for someone London-based who can work onsite at our WeWork one day a week (Wednesdays). We also provide a WeWork membership for occasional additional office access if needed.
• Join our team: https://www.elsewhen.com.

We are looking for a talented Senior AI Engineer to join our fast growing team, helping to bring LLM capabilities into new and existing products. You will dive into AI engineering, building LLM powered systems and exploring multi-agent architectures within a variety of organisations.

What You’ll Do:

• Experiment with POCs to find solutions for real-world problems using Large Language Models.
• Collaborate on AI-driven projects, working alongside engineers, product managers and AI specialists while maintaining clear documentation
• Build and deploy Agentic LLM-based solutions with LangGraph.
• Familiar with different multi agent system patterns
• Build and deploy LLM-based solutions using RAG
• Familiar with different types of databases: Relational, Graph etc
• Design and optimise APIs using Python and FastAPI to serve AI solutions.
• Familiar with GCP ecosystem and Cloudrun
• Build and optimise data pipelines for vector search and knowledge retrieval using Vector databases and embedding models.

What We’re Looking For:

• Professional AI engineering experience.
• Background in Software Engineering with Python.
• Solid understanding of the Python standard library and modern Python coding, testing, debugging and automation techniques
• Hands‑on experience building solutions using LLMs and Agentic architectures with ADK, LlamaIndex, or LangGraph.
• Working with vector databases for embedding and indexing.
• Strong experience with cloud platforms
• Strong experience with API design and frameworks like FastAPI or Flask
• Solid experience with relational databases and SQL
• Interest in expanding your knowledge into GenAI and machine learning
• Excellent communication skills and the ability to work well in a collaborative team environment

Nice to have:

• Strong experience with GCP
• Experience with Graph databases
• Experience in bringing data-intensive projects into production
• Experience with CI/CD pipelines

Benefits:

• Private Health Insurance: Comprehensive coverage for both physical and mental health.
• Flexible and Remote-First Work Environment: Choose how and where you work, with the option for weekly team meet‑ups in central London.
• Generous Leave Policy: 27 days of holiday plus bank holidays
• Family-friendly policies, including enhanced maternity, paternity and shared
• Learning and Development: Individual annual budget of £2,000 for learning and development, with dedicated learning days.
• Feel Better Fund: £500 to help set up your remote office.
• Social Events: Monthly and quarterly team events, an annual team trip, and half-yearly social events.
• Gym Membership Contribution: Support for maintaining your physical health.
• Pension Contribution: Enhanced employer pension contribution of 6%.
• Bonus Opportunities: Potential to receive a discretionary (non-contractual) bonus based on business and personal achievements

Our Commitment to Diversity:

Diverse thoughts, backgrounds, and perspectives create stronger teams and better technology. We welcome everyone, regardless of culture, appearance, or perspective, fostering individuality. We empower our team to challenge norms, grow ideas, and produce their best work.