Fintech
Fintech software that holds up under audit.
AI-accelerated development, with the compliance-awareness that financial services actually requires. Delivered by an engineer with UK financial-sector security clearance.
Why fintech is different
The bar is higher. The margin for error is lower.
Fintech has always been an industry where software failure translates directly into money lost, regulators contacted and customers furious. AI tools have made software development dramatically faster — but the same tools used carelessly can produce plausible-looking code that's subtly wrong in ways that don't show up until an auditor asks a question nobody anticipated.
Yellow Melon's positioning for fintech is specific: senior engineering judgment, AI-accelerated delivery, compliance built in from day one. Faster than a traditional agency. Safer than a junior developer with Cursor.
What we build
Fintech projects we're well-suited for.
Payment & transaction platforms
Stripe, Plaid, ACH, card processing — built with the reconciliation, idempotency and retry logic that real financial workflows need.
Compliance & audit tooling
KYC / AML workflows, transaction monitoring, reporting pipelines. Systems designed from day one to produce an audit trail regulators will accept.
Back-office & reconciliation
The unglamorous but critical internal tools that separate a well-run fintech from one that spends its weekends fixing ledger mismatches.
AI-augmented fintech features
LLM-driven document review, anomaly detection, customer support automation — scoped so compliance officers stay comfortable.
Credentials
Why fintech companies trust us.
Looking for a specific service? See bespoke SaaS development, AI & agentic consulting or architecture review. Or explore our experience in accounting software and legal tech.
Common questions
Frequently asked.
Can you work on regulated projects?
Yes. James Drummond has previously held security clearance to work on software for the UK financial services sector. We understand compliance constraints, data handling rules and why auditability is non-negotiable.
How do you think about AI in fintech?
Carefully. AI is excellent for accelerating delivery of plumbing and internal tooling, and for specific user-facing features like document summarisation. It is not appropriate as an unreviewed source of truth for financial calculations or compliance decisions. We help clients draw that line clearly.
Do you work with pre-revenue fintech startups?
Yes — an AI-accelerated MVP is a great way to validate a fintech thesis without committing to a full build. See rapid MVP development.
Can you integrate with our existing core banking / ledger system?
Yes. We've worked with a wide variety of financial integrations. We'll scope the integration explicitly up front.
Building something where the numbers have to be right?
Describe the project and we'll come back with a rough scope, timeline and price in USD.
Working with teams across the US, Canada, UK and Europe