Software Engineer - AI

AI in this role

claude

ai-agents

We’re Capital on Tap 👋
💳 Capital on Tap started because small businesses were underserved. Big banks were slow, their products weren't fit for purpose, and small business owners often couldn't access what they needed. We set out to fix that.

Today we're a financial platform - not just a credit card company. We offer a best-in-class business credit card, SME-focused spend management platform, a savings product that hit £1 billion in funds within its first year, and a growing suite of tools and financial products that make running a small business easier.

1,000+ employees, £20bn in annual card spend, 200,000+ customers, 17,000+ Trustpilot reviews averaging 4.7 stars, and we're profitable. We’ve done a pretty good job so far, but we’re just getting started!

🏡🏢This is a Hybrid role, the AI team work from our Moorgate (London) Offices 2 days per week.

AI Product Engineering at Capital on Tap

We are a small but highly empowered team with the overall goal of enabling the Engineering and Product teams to effectively use AI to deliver high-quality products and services faster to better serve our customers. Our responsibilities include improving speed of engineering delivery, making AI tooling and skills easily and widely available to the entire business, creating agents to perform tasks across a wide range of functions, and general oversight of engineering AI initiatives.

What you will be doing

This is a software engineering role first and foremost, with a focus on agentic systems, agentic orchestration and supporting technical teams in using AI

This is the type of work you will be doing:

Developing agentic systems and orchestration layers to help us ship faster.
Building “AI on Tap”, Capital on Tap’s internal AI enablement hub. It is the single place to see every AI agent the company runs, the cost of each one, how ready each codebase is for AI-assisted development, and how to get more value from Claude and other providers.
Working with QA and Platform to integrate agentic testing and verification tools across our pipeline to deploy faster
Owning build-vs-buy recommendations, from evaluation through to team buy-in
Whatever it takes to reach an agentic future — tech debt, CI/CD, the unglamorous work that unblocks everything else

We’re Looking For 🔎
Required skills:

Hands-on experience in C#, .NET
Good testing practices, in both Unit and Integration testing
Experience building agentic systems
Experience in driving initiatives across engineering teams
A focus on delivering concrete, measurable results
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 Work Deserves Great Perks
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:
🏥 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
🚘 Octopus EV Salary Sacrifice Scheme
🏖️ 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.

Other Info
👍Check out our ‘Top Tips’ for interviewing.
✔️Keep updated on new job opportunities by following us on Linkedin.
📧Email careers@capitalontap.com if you have any questions.

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.)

How we rate this

Software Engineer - AI at Capital on Tap rates 6 out of 100 for how much of the daily work is AI. That makes it Little AI (AI Level 1 of 4). The level is about AI in the job, not seniority.

Classification

Little AI. AI is not part of the work.

●●●● Builds AI80 to 100
●●●○ Works on AI60 to 79
●●○○ Uses AI40 to 59
●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Open the description and count.

Prepare for this job

A free preview built only from this posting: what it asks for, what you could be asked in an interview, and how to adjust your resume.

Skills and AI tools this role asks for

AI AgentsClaude

Questions you could be asked

How do you decide when an AI agent can act on its own versus asking for approval first?
Walk me through how you've used Claude in your day-to-day work.

Adapt your resume

List these exact terms on your resume: AI Agents and Claude. An applicant tracking system matches the wording, not the idea.
Attach one line of real, concrete experience to at least one of them — a tool named with nothing behind it rarely survives a human read.

Want an expert to read your CV for this job?

Free. Send your CV and the role you want next. We reply by email within 2 to 4 business days.

Get a free CV review