Software Engineer (AI)

Capital on Tap; City Of London; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A financial technology company in London seeks an AI Engineer to work closely with product teams in delivering innovative AI features. Candidates should have over 4 years of experience in C# and .NET Core, with a proven ability to build AI-powered systems. The role includes training, collaboration, and establishing best practices for AI implementation. This hybrid position offers great benefits including private healthcare, an annual learning budget, and much more.

Benefits

Private Healthcare including dental and opticians

28 days holiday plus bank holidays

Annual Learning and Wellbeing Budget

Cycle to Work Scheme

Dog Friendly Offices

Qualifications

• 4+ years hands-on experience in C# and .NET Core.
• Experience in building AI-powered automation.
• Proven ability to integrate with LLMs.

Responsibilities

• Partner with product teams to deliver AI features.
• Run workshops to build AI competency.
• Create documentation for AI implementation.

Skills

C#

.NET Core

AI technologies

Unit testing

Integration testing

Job description

We’re Capital on Tap Capital on Tap was founded with the mission to help small business owners and make their lives easier. Today, we provide an all-in-one business credit card & spend management platform that helps business owners save time and money. Capital on Tap proudly serves over 200,000 businesses across the world and our goal is to help 1 million small businesses by 2030.

Why Join Us? We empower you to be innovative and solve complex problems. Take ownership, make an impact, and thrive in our scaling and agile environment.

This is a Hybrid role, the Software Engineering Team works from our London Office (Moorgate) 2 days per week

AI Engineering at Capital on Tap

We\'re building a small team of 3 AI-specialist software engineers who embed directly within product teams to deliver intelligent features. Rather than operating as a separate unit, you\'ll work alongside existing teams as an internal consultant, helping them deliver AI-powered capabilities whilst building their skills through hands-on collaboration and structured training. A core part of the role is upskilling the wider Engineering department through workshops, documentation, and knowledge transfer.

What You’ll Be Doing

You\'ll partner with product teams to build and deliver AI features, working embedded within their squad structure. Your role is to enable teams to successfully deliver AI capabilities while upskilling them to own the features long-term.

• Embed within product teams to co-deliver AI-powered features like chatbots, OCR tools, and transaction enrichment systems
• Write production code alongside the team, ensuring they understand the architecture and can maintain it post-launch
• Run workshops and training sessions to build AI competency across the Engineering department
• Establish best practices for testing and evaluating non-deterministic AI systems
• Create documentation, patterns, and example code for common AI implementation scenarios
• Help teams identify where AI could add value to their product roadmap
• Act as the quality owner for AI delivery across the company

Qualifications

• 4+ years hands-on experience in C#, .NET Core
• Proven experience building agents and automation powered by AI
• Experience integrating with LLMs or other AI technologies
• Good testing practices, in both Unit and Integration testing
• A passion for learning and teaching new skills and technologies
• A proactive, supportive, and collaborative team player

Diversity & Inclusion

We welcome, consider and encourage applications from anyone who shares our commitment to inclusivity. Join us in creating a space where authenticity thrives, and everyone can do their best work.

Great Benefits

We try not to take ourselves too seriously (all the time) so we make sure our office is decked out with a pool table, arcade machine, beer tap, and a couple of office dogs thrown in for good measure.

Check out our benefits as a summary:

• Private Healthcare including dental and opticians services through Vitality
• Worldwide travel insurance through Vitality
• Anniversary Rewards (£250, £500, £750, 4-week fully paid sabbatical)
• Salary Sacrifice Pension Scheme up to 7% match
• 28 days holiday (plus bank holidays)
• Annual Learning and Wellbeing Budget
• Enhanced Parental Leave
• Cycle to Work Scheme
• Season Ticket Loan
• 6 free therapy sessions per year
• Dog Friendly Offices
• Free drinks and snacks in our offices

Check out more of our benefits, values and mission here.

Excited to work here? Apply!

If you’d like to progress your career within our fast growing, profitable fintech then click apply and we will aim to get back to you within 3 working days (during busy periods this could take up to 5 working days).

UK DE&I Data: At Capital on Tap we are fully focused on equality and believe deeply in diversity of race, gender, sexual orientation, religion, ethnicity, ability, national origin and all the other characteristics that make us who we are. We want to be a place where a diverse mix of talented people want to come and do their best work and most importantly feel included and that they can be their authentic selves.