Senior AI Engineer

Methodfi; City of London; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A fast-growing tech firm in London is looking for a Senior AI Engineer to accelerate AI applications across products. You will design generative AI solutions for complex financial workflows and drive model lifecycle processes. Ideal candidates should have strong Python skills, experience in NLP, and a solid understanding of the GenAI landscape. This role offers competitive compensation and a hybrid working model.

Benefits

Competitive Salary

Equity

Pension contributions

Private Medical Insurance

Paid sick leave

Group Life Assurance

Season Ticket Loan

Cycle to Work schemes

25 holiday days

Work abroad options

1 month paid sabbatical

Enhanced parental leave

Professional development budget

Quarterly team socials

Company events

Qualifications

• Strong proficiency in Python for production-ready delivery.
• Deep understanding of the GenAI landscape and agentic frameworks.
• Hands-on professional experience in NLP, Information Retrieval, LLMs.
• Experience in full model lifecycle including experimentation and deployment.
• Good knowledge of AWS’s AI infrastructure.

Responsibilities

• Design and build generative AI applications for financial workflows.
• Drive end-to-end model development lifecycle and best practices.
• Collaborate cross-functionally and elevate/mentor teammates.
• Translate complex problems into scoped bets in a dynamic environment.
• Iterate improvements with a fail-fast mentality.
• Lead and push AI adoption within 9fin.

Skills

Strong proficiency in Python

Understanding of GenAI landscape

Experience in NLP

Experience in Information Retrieval

AWS AI infrastructure knowledge

Job description

About 9fin

The world's largest asset class, debt, operates with the worst data.

Technology has revolutionized equity markets with electronic trading, quant algos and instantaneous news. However, in debt capital markets, the picture is completely different. It still behaves like it’s in the 1980s; trillions of dollars of trades are placed over the phone, news is slow, and corporate credit information is imperfect and scattered.

Our mission is to change this.

9fin's proprietary technology delivers fast and comprehensive financial, credit, legal & ESG analysis. Our clients are able to make faster, more informed decisions, win more business and most importantly, save time.

Our fast growing list of clients include 9 of the top 10 Investment Banks, leading Asset Managers, Hedge Funds and Law Firms.

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 Senior 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. We want you to help lead/push the adoption of AI throughout 9fin.

About You

This role will be a great fit if you:

• Strong proficiency in Python for production ready delivery.

• Deep understanding of the GenAI landscape and agentic frameworks.

• Hands-on professional experience in one or more of the areas: NLP, Information Retrieval stacks, LLMs.

• Experience working in the full model lifecycle (including experimentation, training, testing, monitoring, and deployment). We are data centric and love our evals!

• 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 & Insurance

• Competitive Salary (our salary bands are benchmarked at the top end of the market)

• Equity

• Pension (your minimum contributions are 4% with 9fin matching up to 7%)

• Private Medical Insurance

• Paid sick leave with Income Protection for long periods of illness

• Group Life Assurance

• Season Ticket Loan & Cycle to Work schemes

Time off

• 25 holiday days per year

• Local 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 work

• Work abroad for up to 3 months a year

• 1 month paid sabbatical after 5 years of service

• Enhanced parental leave & flexible working arrangements available

Training & Culture

• Professional learning and development budget

• Quarterly team socials

• Summer and Winter company social events

9fin is an equal opportunities employer

At 9fin we are dedicated to building and promoting a fair and inclusive workplace where everyone can reach their full potential and truly belong. We recognize that building diverse teams enables a more creative and productive environment. If you’re excited about this role but your experience doesn’t perfectly align with the job description, we encourage you to apply anyway. You might just be who we’re looking for — either for this role, or perhaps another.