AI Engineer

9fin; Greater London; Hybride; GBP 90 000 - 130 000; Plein temps

Avantages offerts par ce poste

Hybrid working model

Private Medical Insurance

Pension with company match

Time off 25 holidays + public holidays

Résumé du poste

9fin, a fast-growing AI-powered platform for global debt markets, is seeking an AI Engineer to scale our AI capabilities across teams and products. You will design and deploy large-scale AI systems, apply cutting-edge techniques, and work with top researchers and engineers.

You will contribute to generative AI applications for complex financial workflows, drive end-to-end model development, and collaborate across functions to turn tough problems into tangible, scalable solutions.

Qualifications

• Strong proficiency in Python for production ready delivery.
• Experience with model lifecycle from experimentation to deployment.
• Experience with AWS AI infrastructure.

Responsabilités

• Design and build generative AI applications tailored to complex financial and legal workflows, leveraging state-of-the-art models to deliver innovative, practical solutions that streamline decision-making and unlock new efficiencies.
• Drive end to end model development lifecycle, leading the team in best practices, ensuring reproducible research and well managed model delivery/deployment.
• Collaborate cross functionally to share diverse ideas, understand business problems, and elevate/mentor your teammates.
• Translate complex problems into well-defined scoped bets in an internal startup style environment, dynamic and fast-paced.
• Learn and apply ground-breaking research and approaches in advanced topics, iterating improvements with a fail fast mentality.
• Be a proactive sharer of compelling ideas/work to the rest of the team and organisation.

Connaissances

Python

Information Retrieval

Entity extraction

RAG

Recommendation systems

Tabular ML

Statistical Modelling

GenAI landscape

Outils

AWS

Description du poste

About 9fin9fin is the AI platform powering global debt markets — the world’s largest asset class at over $145 trillion.Debt markets are vast, global, and mission-critical, yet still run on fragmented data, PDFs, and manual workflows.

9fin replaces this broken infrastructure with a single platform that centralises proprietary credit data, deep analysis, and high-value workflows across global markets.

Today, 9fin powers teams at 300+ blue-chip institutions worldwide, including global banks, asset managers, private equity firms, law firms, and advisors.

The business is scaling at exceptional speed, with rapid expansion in the US and best-in-class retention driven by deep workflow adoption.

We’re at a defining inflection point.

With proven product-market fit and strong, global market pull, 9fin is accelerating toward becoming the category-defining platform for debt markets worldwide.

The Opportunity

The Data Science team is growing at 9fin! We are doing world-class work with groundbreaking technologies to build data-driven products using machine learning, computer vision, natural language processing, speech and audio, and knowledge/data mining.

We are looking for a AI Engineer to accelerate our application of AI across teams and products.

Come and join us, you will get to build large-scale AI powered systems, learn and apply the latest techniques, and work alongside other great researchers and engineers!

Every day is different, but here's an example of the kind of things you'll work on:

• Design and build generative AI applications tailored to complex financial and legal workflows, leveraging state-of-the-art models to deliver innovative, practical solutions that streamline decision-making and unlock new efficiencies.
• Drive end to end model development lifecycle, leading the team in best practices, ensuring reproducible research and well managed model delivery/deployment.
• Collaborate cross functionally to share diverse ideas, understand business problems, and elevate/mentor your teammates.
• Translate complex problems into well-defined scoped bets in an internal startup style environment, dynamic and fast-paced.
• Learn and apply ground-breaking research and approaches in advanced topics, iterating improvements with a fail fast mentality.
• Be a proactive sharer of compelling ideas/work to the rest of the team and organisation.

About You

This role will be a great fit if you: Strong proficiency in Python for production ready delivery. You’re an expert in any of the following areas.

• Information Retrieval: chunking strategies, (finetuning) embedding models, training re-rankers.
• Entity/relationship extraction/resolution Knowledge Graphs; building and inference, graph
• RAG
• Recommendation systems and ranking: personalisation, learning-to-rank, feed ranking, user modelling, etc.
• Tabular ML: feature engineering, structured data modelling (GBDTs, etc.)
• Statistical & Predictive Modelling: supervised ML, anomaly detection, temporal modelling, etc.
• Deep understanding of the GenAI landscape and agentic frameworks.
• Experience working in the full model lifecycle (including experimentation, training, testing, monitoring, and deployment).

We are data centric and love our evals!

You have a strong product focus with a desire to understand the end-to-end impact of your solutions for our end users.

Good knowledge of AWS’s AI infrastructure.

Benefits

We’re a scaling start up, and we enjoy sharing our success, when the company succeeds, we always reinvest that in our people.

We also offer huge amounts of responsibility, an abundance of opportunity for growth and a platform to truly excel.

• Financial & InsuranceCompetitive Salary (our salary bands are benchmarked at the top end of the market)Pension (your minimum contributions are 4% with 9fin matching up to 7%)Private Medical InsurancePaid sick leave with Income Protection for long periods of illnessGroup Life Assurance Season Ticket Loan & Cycle to Work schemesTime off 25 holiday days per yearLocal public holidays (with the ability to exchange them for alternative days)Hybrid working model, to allow you the flexibility to decide how, where and when you do your best workWork abroad for up to 3 months a year1 month paid sabbatical after 5 years of serviceEnhanced parental leave & flexible working arrangements availableTraining & Culture Professional learning and development budgetAI experimentation budget of 800 (UK) per employee to trial AI toolsQuarterly team socialsSummer and Winter company social eventsHybrid Policy9fin is a hybrid company, and the office is a regular part of how we work.

Hybrid

From January 2027, all employees will work from their designated 9fin office on Tuesdays and Wednesdays.

Some teams may be asked to be in the office more often, where the nature of their work calls for it.

For the rest of the week, you may work from wherever works best for you and your team.

Your Talent Partner will share hybrid working details for this role.

9fin is an equal opportunities employerAt 9fin we are dedicated to building and promoting a fair and inclusive workplace where everyone can reach their full potential and truly belong.

Location

LocationLondonEmployment TypeFull timeDepartmentData & AI