Senior AI Engineer

Elsewhen; Greater London; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A technology consultancy in London is seeking a Senior AI Engineer to integrate LLM capabilities into their products. The role involves experimenting with POCs, collaborating on AI projects, and building LLM-based solutions. Ideal candidates will have strong AI and software engineering skills, particularly in Python and experience with cloud platforms. The position offers a hybrid work environment, private health insurance, generous leave, and a learning budget.

Benefits

Private Health Insurance

Flexible and Remote-First Work Environment

Generous Leave Policy

Family-friendly policies

Learning and Development budget

Feel Better Fund

Social Events

Gym Membership Contribution

Pension Contribution

Bonus Opportunities

Qualifications

• Professional experience in AI engineering and software engineering.
• Hands-on knowledge of LLMs, cloud platforms, and API design.
• Ability to work collaboratively in a team environment.

Responsibilities

• Experiment with POCs using Large Language Models to solve problems.
• Collaborate on AI-driven projects with engineers and product managers.
• Build and deploy LLM-based solutions and design APIs for AI.

Skills

AI engineering experience

Software Engineering with Python

Python coding and testing

Working with LLMs and Agentic architectures

Cloud platform experience

API design with FastAPI or Flask

Relational databases and SQL

Communication skills

Tools

GCP

Graph databases

Vector databases for embedding and indexing

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.