Open Banking & Open Finance
Craig Greenhouse
Founder & Principal Consultant, Opendata Consult
Craig helps banks and fintechs design and deliver secure, compliant Open Banking and Open Finance platforms — from strategy and architecture through to hands-on implementation.
Open Banking expertise grounded in delivery
Craig is an Open Banking and Open Finance specialist whose work spans technical strategy, solution architecture, API security and implementation. He was involved in the UK's Open Banking programme during its formative years at the Open Banking Implementation Entity (OBIE), and has subsequently worked on complex Open Banking and API programmes for major financial institutions including NatWest and Santander.
He works across the boundary between business, regulation and engineering: helping leadership teams understand what must be done, shaping the architecture and delivery approach, and working directly with technical teams when required.
Through Opendata Consult, Craig brings together senior specialists in Open Banking, identity, API security, payments and software engineering to support advisory, architecture, implementation and delivery engagements.
Areas of expertise
- Open Banking
- Open Finance
- Smart Data
- FAPI
- OAuth 2.0 & OIDC
- DCR & SSA
- PKI & mTLS
- API security
- Directory & trust frameworks
- TPP onboarding
- Solution architecture
- Payments
- Bank & fintech integration
How Craig works with clients
Engagements range from focused architecture and security reviews to longer advisory and delivery assignments. Typical work includes Open Banking platform strategy, FAPI and API security, directory onboarding, dynamic client registration, trust-framework design, integration troubleshooting and technical team enablement.
Explore Opendata Consult servicesTalk to Craig
If you are building, repairing or scaling an Open Banking or Open Finance platform, book a confidential introductory call.
Book a 30-minute call