Data Scientist (AI)
At a glance
Mid-level AI Research role at Lendable. London · full-time · no salary stated · we estimate £31,000–£445,000 across the United Kingdom.
Lendable has not published a salary for this role. The figure below is our estimate, not theirs.
aimlroles summary, based on the employer's posting.
What you'll do
- Improve chatbot responses and add more account tasks it can complete without human help
- Speed up document extraction and raise the accuracy of the in-house parsing pipelines
- Build LLM-based case-management workflows and identify manual processes suitable for AI automation
- Take AI solutions from initial exploration and prototypes through launch, evaluation and ongoing monitoring
What you bring
- You have strong engineering skills and have built systems that run in production
- You have applied LLMs in real workflows, including prompt design, retrieval, agent patterns and evaluation
- You can break down unclear problems, test ideas with incomplete information and explain trade-offs to stakeholders
- You understand business processes and can judge where AI can simplify or automate work
Who this fits
This suits a hands-on AI engineer who wants ownership across prototyping, deployment and monitoring in a small, autonomous team. The role is based in London and follows a hybrid schedule with three office days each week.
From the employer
About Lendable
Lendable is on a mission to build the world's best technology to help people get credit and save money. We're building one of the world’s leading fintech companies and are off to a strong start:
One of the UK’s most exciting unicorns with a team of over 800 people
Among the fastest-growing tech companies in the UK
Profitable since 2017
Backed by top investors including Balderton Capital and Goldman Sachs
Loved by customers with the best reviews in the market (4.9 across 10,000s of reviews on Trustpilot)
So far, we’ve rebuilt the Big Three consumer finance products from scratch: loans, credit cards and car finance. We get money into our customers’ hands in minutes instead of days.
We’re growing fast, and there’s a lot more to do: we’re going after the two biggest Western markets (UK and US) where trillions worth of financial products are held by big banks with dated systems and painful processes.
Join us if you want to
Take ownership: you are trusted to make decisions that drive a material impact on the direction and success of Lendable from day 1
Work in small teams of exceptional people: Lendies are relentlessly resourceful. We challenge the status quo to solve problems and find smarter solutions
Build the best technology in-house: we use new data sources, machine learning and AI to make machines do the heavy lifting
This role combines applied AI engineering, process design and hands-on Python development. You will work on loosely defined problems, test ideas quickly and turn the strongest ones into reliable services.
In under a year, we built a chatbot across Loans, Credit Cards and Motor Finance that now handles more than 1 million customer chats a year at around a 70% resolution rate. It completes complex account actions autonomously, end to end, and we hold it to the same standard as our best operations agents.
We have also built AI document parsers that process around 500,000 documents a year, and are trialling voice AI on our phone lines. You will help take these systems further and find the next high-impact processes to automate.
What you will do
Improve the chatbot's quality and expand the account actions it can complete autonomously.
Expand our in-house document extraction pipelines to make parsing faster and more accurate.
Design LLM-driven workflows that simplify case management.
Find new opportunities to replace manual work with effective AI systems.
Own solutions from discovery and prototyping through deployment, evaluation and monitoring.
What we are looking for
Strong engineering skills and experience building production systems.
Hands-on experience using LLMs in real workflows.
Experience designing and improving prompts, retrieval pipelines, agent workflows and evaluations.
An understanding of business processes and good judgement about where AI can simplify or automate them.
The ability to structure ambiguous problems, test hypotheses and make progress with partial information.
Clear communication and the ability to explain trade-offs and influence stakeholders.
Why join us
Work with LLMs, retrieval systems, agents and automation pipelines every day.
Join a small, autonomous team with meaningful ownership and decision-making power.
Interview process
Introductory call
Take-home exercise
Take home debrief
Case study
Onsite final interview
Life at Lendable
Winning team: the opportunity to scale up one of the world’s most successful fintech companies
Flexible working: flexible approach tailored to each role. Hybrid roles require three days in-office weekly; fully remote roles include regular opportunities for in-person connection through socials and off-sites
Socials & connection: opportunities and events to come together, socialise, and get to know each other beyond the office walls
Health coverage: support for your physical and mental wellbeing, including private health cover
Retirement & savings: long-term financial wellbeing through retirement savings plans
Employee referral programme: earn a competitive bonus when you refer successful new team members
Office meals & snacks: enjoy a fully stocked kitchen, plus complimentary lunches prepared by in-house chefs on in-office days at select locations
Sustainable commuting: cycle-to-work and electric vehicle salary sacrifice schemes available in select locations
Please note: The availability and details of specific benefits vary by location and role. For more information, please speak to your Talent Partner.
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