London — Fitzrovia Studio · Available Q3 2026

Engineering digitalsovereignty for fintech_

OFB Fintech builds high-performance websites and custom software for the world's most demanding financial environments. Discovery to deployment, from a senior London team.

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10+: Years engineering enterprise systems
100%: London-based senior engineers
24h: Response time on inbound briefs
NDA: Signed before every discovery call

◆TypeScript◆Go◆Postgres◆AWS◆Kubernetes◆SOC 2◆Next.js◆TanStack◆Rust◆GCP◆GDPR◆OWASP◆Terraform◆Stripe

/ Services

What we build.

01/

Website Development

Ultra-fast, accessible marketing sites and web platforms built on a modern stack with measurable Core Web Vitals.

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02/

Custom Software

Bespoke engineering for operations, internal tools, and proprietary workflows that off-the-shelf software can't reach.

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03/

SaaS Platforms

Multi-tenant applications with billing, RBAC, and observability — engineered for scale from day one.

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04/

API & Integrations

Secure pipelines connecting legacy systems, payment rails, and third-party financial data sources.

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05/

Mobile Apps

High-fidelity iOS and Android applications with biometric security and offline-first architecture.

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06/

Cloud & DevOps

Resilient AWS, Azure and GCP infrastructure with CI/CD, auto-scaling, and disaster recovery baked in.

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/ Process

Execution framework.

[Discovery]

01. Technical Audit

In-depth analysis of existing infrastructure, data flow, user journeys, and security bottlenecks.

[Architecture]

02. System Design

Blueprints covering data models, service boundaries, security posture, and scaling strategy.

[Engineering]

03. Rapid Prototyping

Iterative delivery of core logic and interfaces with weekly stakeholder reviews and demos.

[Deployment]

04. Production Release

Zero-downtime release with automated testing, observability, and 24/7 monitoring in place.

[Operate]

05. Continuous Improvement

Ongoing performance, security, and feature work governed by a transparent roadmap.

/ Work

Selected engagements.

Most of our work is under NDA. A redacted dossier is available on request.

CASE STUDY

Confidential — Wealth Platform

Portfolio dashboard, KYC, reporting

+38% client retention

CASE STUDY

Confidential — Payments PSP

Merchant onboarding & ledger

9.2k merchants migrated

CASE STUDY

Confidential — RegTech SaaS

Multi-tenant rules engine

Sub-200ms screening

/ Why OFB

Built like a partner, priced like a studio.

Senior by default

Every engineer on your project has 8+ years building production systems.

Fintech literate

We understand KYC, ledgers, settlement, and reconciliation — not just CRUD.

Security first

OWASP-aligned reviews, SOC 2 controls, encryption at rest and in transit.

Transparent delivery

Weekly demos, shared backlog, no surprise invoices, no offshore handoffs.

/ Stack

Tools we trust.

FRONTEND

React
Next.js
TanStack
TypeScript
Tailwind

BACKEND

Node.js
Go
Python
PostgreSQL
Redis

CLOUD

AWS
Azure
GCP
Cloudflare
Vercel

PRACTICE

TDD
CI/CD
SOC 2 ready
OWASP
GDPR

/ Clients

What they say.

"OFB rebuilt our merchant ledger end-to-end. Performance and reliability are now non-issues."

CTO, European PSP

"A genuinely senior team. They understood our regulatory constraints from the first meeting."

Head of Product, RegTech SaaS

"Clear contracts, transparent reporting, zero drama. Exactly what we needed."

COO, Wealth Manager

/ Engagement

How we work together.

Discovery

from £6k

Two-week fixed-price audit, architecture brief, and delivery plan.

→ Stakeholder interviews
→ Technical audit
→ Roadmap & estimate

Build Sprint

from £18k / mo

Capped monthly sprints with a dedicated senior pair.

→ Weekly demos
→ Shared backlog
→ Production deploys

Platform Partner

Bespoke

Long-term embedded team for product and platform ownership.

→ Senior squad
→ On-call rotation
→ Quarterly roadmap

/ FAQ

Questions, answered.

From four-week discovery sprints to multi-year platform builds. Most engagements run between 3 and 12 months.

/ Contact

Discuss your roadmap.

Every consultation starts with a technical NDA. Reach out to schedule a deep dive into your requirements.

TEL+44 7575 429709

EMLinfo@ofbfintech.com

ADROffice 1247
60 Tottenham Court Road
Fitzrovia, London
United Kingdom, W1T 2EW