The operating core for modern financial institutions

Banking’s AWS Moment Is Here

Financial institutions have spent decades layering products, vendors, and digital experiences around aging infrastructure. ADAPFIN unifies operations, lending, servicing, fraud, compliance, and customer intelligence in a modern, AI-native operating environment built for the next era of financial services.

Minimize risk: Deploy alongside your legacy core through Nucleus BankOS’ side-core configuration — modernize without an immediate core replacement.

The problem

Banking didn’t become simpler.
It became layered.

Every decade added another layer on top of a core built for a different era. The result isn’t modernization — it’s accumulated complexity the institution pays for in cost, speed, and risk.

Vendor sprawl

A dozen contracts, each with its own data model and its own bill.

Fragmented data

The customer lives in five systems. No single view is complete.

Disconnected workflows

Operations, lending, and compliance hand off by export and email.

Duplicated compliance

The same controls re-built in every tool, audited twice.

Fragmented AI

Point AI on each vendor — none grounded in one source of truth.

Operational drag

Every product is a multi-quarter integration before it reaches a customer.

1970s mainframe core
Electronic networks
Web banking
Mobile apps
Cloud & APIs
AI, bolted on top

Why now

You can’t add your way out of a layering problem.

Four pressures are converging at once — and every one of them gets worse when you bolt more software onto the old core.

01

AI is now an operating requirement

Bolt-on AI on a legacy core is a demo, not a workforce.

02

Cost pressure is structural

Margin compression makes a dozen overlapping contracts impossible to justify.

03

Compliance keeps compounding

Fraud, BSA, and cyber obligations grow faster than siloed tools adapt.

04

The ecosystem is fragmenting

More point solutions means more seams — and the seams hide the risk.

The lower-risk path

Modernize without ripping everything out.

Nucleus BankOS runs alongside your existing core, in production, as a side-core. Evaluate, run real workflows, and migrate on your timeline — not in one high-stakes cutover.

Your existing core

Keeps running

No forced cutover. Business as usual.

Nucleus BankOS

Runs alongside, in production

Real-time aligned. Move workloads when ready.

1Phase 1

Evaluate

Stand up ADAPFIN alongside your core and validate against real operations.

2Phase 2

Run workflows

Move selected operations, lending, or compliance onto the platform.

3Phase 3

Migrate at your pace

Shift the core when the data and runbook are proven — on your timeline.

One platform

Nucleus BankOS — the whole institution on one core.

One customer record. One ledger. One control environment. The capabilities a financial institution runs on, unified — instead of stitched together across a dozen vendors.

Lending
Operations
Fraud & Compliance
Treasury
Customer Intelligence
AI Orchestration
Explore the platform
Nucleus BankOS · Operations
Nucleus BankOS operations center

What changes

Discover what is possible. Measurable results.

~40%

Lower core OPEX

Consolidate overlapping vendor contracts and core IT spend.

Days

Not quarters

Launch and change products with no-code configuration.

Real-time

Risk & compliance

Fraud, BSA/AML, and audit handled continuously on live data.

One

Core · record · control

One ledger, one customer record, one control environment.

Endré Jarraux Walls

Endré Jarraux Walls

Founder & CEO

Zia Karim

Zia Karim

Co-Founder & CTO

Bob Diegel

Bob Diegel

Co-Founder & Strategic Advisor

Diane McCracken

Diane McCracken

Co-Founder & Strategic Advisor

Built by operators

Infrastructure for banking should be built by people who have run it.

Nucleus BankOS is operator-built — designed by people who carried the risk, compliance, and operational weight inside regulated institutions, not by outsiders looking in.

  • Led technology and operations inside regulated institutions
  • Real banking operations, risk, and compliance experience
  • One core, one customer record, one control environment
  • Governance-minded by design, not as an afterthought

Outcomes

Banking Transformation, Illustrated.

Explore illustrative case studies demonstrating how financial institutions can modernize operations, reduce infrastructure fragmentation, strengthen compliance oversight, and deliver more intelligent banking experiences using Nucleus BankOS.

We work with a limited number of institutions at a time.

If your institution is evaluating a lower-risk path to modernization, we’d welcome a conversation about strategic fit.