AI Engineer

Tuza; Greater London; On-site; GBP 90,000 - 140,000; Full time

Benefits offered by this job

Generous equity

Office in Shoreditch

Visa sponsorship available

Job summary

Tuza in Shoreditch is seeking a mid–senior IC to own the orchestration, auditability, and evals for AI agents used in banking workflows. Three days a week in the office, with visa sponsorship available for the right candidate.

Join a small, ambitious team building AI agents that automate complex banking processes, improving speed, accuracy and accountability across teams. This role offers growth, impact, and the chance to shape a growing company.

Qualifications

• Exceptional Python and experience orchestrating LLMs with tools like Temporal or LangChain.
• AI automation shipped and running in production.
• A record of making agents reliable and efficient.
• Fluency with data pipelines and integrations.

Responsibilities

• Develop and optimise AI agents for live banking workflows.
• Design review gates, fail-safes, and fallback behaviour.
• Build the observability and feedback loops behind agent performance.
• Spend time with our partner banks in their offices, and turn what you see there into product changes.

Skills

Python

LLMs orchestration

AI automation

Reliability

Data pipelines

Tools

Temporal

LangChain

Job description

Build the multi-agent systems that automate work banks currently do by hand. You'll own the orchestration, the auditability, and the evals that make our agents trustworthy.

Mid–senior IC 3 days/week in office Visa sponsorship available

Thanks for taking the time to consider Tuza.

When joining a company at the early stages of its growth story, there's often more than meets the eye. This is our opportunity to help you understand why your next role should be with us.

We're based in Shoreditch, spend three days a week in the office, and can sponsor visas for the right candidate.

Diversity is a priority for us. We build a better product when the people building it don't all think the same way.

If you're still unsure at the end, drop into our offices in Shoreditch and see it for yourself.

What we do

We build AI agents for banks, taking on the manual work that stops them from growing.

Every business that comes to a bank for a financial product gets passed from team to team, sales to onboarding to activation, and so on. Right now, every one of those teams is only ever as fast as the number of people in it. Our agents do that work without the ceiling. To be trusted with it in a bank, they have to be accurate, quick, and accountable, with auditability, explainability and security built in rather than an afterthought. That's what makes banks the hardest place to attempt this, and the place where getting it right is worth the most.

Where we're at

We've raised $7 million from Northzone, Connect Ventures and TriplePoint, and work with acquiring banks including Worldpay, Barclaycard and NatWest.

We're earlier than that list makes us sound. The problem is real, and banks are already paying us to solve it. We're still experimenting with the product that best surfaces our value, and that's a large part of this job, rather than something that will be handed to you finished.

Doing that work is a small but driven team of 12 based in our Shoreditch office who care about their work and its impact.

There's also something you might already know us for. We built the UK's first payments price comparison platform, helping small businesses compare providers. It still runs today on MoneySuperMarket, Uswitch and money.co.uk. You won't be working on it, but it's why we know this market so well.

How we work

• Extreme ownership: you own the outcome of your work, not just the output. If you see something broken or missing, you have the freedom and the responsibility to fix it.
• Learning velocity: curious, adaptable, and quick to pick things up. Hard problems require grit, and we embrace them.
• Customer-centric: we spend a day a week inside our partner banks, watching problems happen before they're even reported. Product decisions get made in that room, not in a roadmap meeting.
• Open and direct: we communicate openly, directly, and with intent.

What you'll do

• Develop and optimise AI agents for live banking workflows
• Design review gates, fail-safes, and fallback behaviour
• Build the observability and feedback loops behind agent performance
• Spend time with our partner banks in their offices, and turn what you see there into product changes

What we look for

We're hiring mid- to senior-level individual contributors with at least 4 years' experience.

• Exceptional Python and experience orchestrating LLMs with tools like Temporal or LangChain
• AI automation shipped and running in production
• A record of making agents reliable and efficient
• Fluency with data pipelines and integrations

We're an early-stage and intentionally lean. That means:

• We judge impact by the outcome of work, not the output
• Priorities shift when we learn something new, and we try to communicate why, but it happens
• You'll be given a direction, and the plan is yours to work out

This suits people who are comfortable with ambiguity, ask early when context is missing, and would rather ship something good enough fast than perfect something late.

It's less suited for those who prefer clear hierarchies, detailed briefs, or predictable roadmaps. That's not a character flaw; we just don't offer that yet.

Probation is a mutual check-in. We give feedback as we go, and we expect the same in return. If the fit isn't there, we'd rather know at month two than month six.

How you'll be assessed

Our aim is to get candidates through the whole process within two weeks of applying — quick enough to respect your time, thorough enough to keep our standards high.

• 20-minute intro call to talk through your background, what you're looking for, and how we work
• 40-minute technical interview digging into products you've built and the decisions behind them
• 3-hour technical assessment, ideally at our Shoreditch office but remote works too
• 30-minute conversation with our CEO, Ed, to close things out and answer anything still on your mind

What's in it for you

• A competitive salary and generous equity
• Three days a week in our Shoreditch office, Tuesday to Thursday, and the rest wherever you work best
• 25 days holiday, with flexibility when you need it
• £350 a year towards taking a proper break
• £350 a year towards learning or a hobby
• Smart, kind colleagues who care about the work
• Soundbaths, terrarium making, saunas, cooked breakfasts, barbecues on the rooftop and the occasional Mario Kart tournament