The operating core for modern financial institutions
Improve your bank’s economics.Nucleus BankOS is an AI-native, customer-journey-driven bank operating system that helps banks and credit unions lower TCO, consolidate third-party systems, and regain control over their operating future.
Nucleus BankOS unifies operations, lending, servicing, fraud, compliance, and customer intelligence in one AI-native operating environment built to reduce complexity, improve control, and change the economics of banking.
Minimize risk: deploy Nucleus BankOS alongside your legacy core through a side-core configuration and move forward 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 is accumulated complexity the institution pays for in cost, speed, risk, and customer experience.
Vendor sprawl
A dozen contracts, each with its own data model and its own bill — every vendor adding cost, integrations, data seams, and operational dependency.
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.
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.
AI is now an operating requirement
Bolt-on AI on a legacy core is a demo, not a workforce.
Cost pressure is structural
Margin compression makes a dozen overlapping contracts impossible to justify.
Compliance keeps compounding
Fraud, BSA, and cyber obligations grow faster than siloed tools adapt.
The ecosystem is fragmenting
More point solutions means more seams — and the seams hide the risk.
The lower-risk path
Move forward without ripping everything out.
Nucleus BankOS runs alongside your existing core, in production, as a side-core. Side-core deployment lets institutions validate workflows, controls, data, and economics before a full-core decision. 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.
Evaluate
Stand up Nucleus BankOS alongside your core and validate against real operations.
Run workflows
Move selected operations, lending, or compliance onto the platform.
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 vendors.
Nucleus BankOS functions as a bank operating system: core banking, workflows, intelligence, controls, and specialized capabilities on one foundation.
What changes
Discover what is possible. Measurable results.
Nucleus BankOS gives institutions a platform where operating outcomes can be modeled, demonstrated, and measured across cost, speed, risk, compliance, and customer experience.
Modeled lower core OPEX
Consolidate overlapping vendor contracts and core IT spend.
Products launched, not quarters
Launch and change products with no-code configuration.
Risk & compliance
Fraud, BSA/AML, and audit handled continuously on live data.
Core · customer record · control environment
One ledger, one customer record, one control environment.
Endré Jarraux Walls
Founder & CEO
Zia Karim
Co-Founder & CTO
Bob Diegel
Co-Founder & Strategic Advisor
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.
That operator experience shaped Nucleus around the economics banks actually live with: vendor cost, operational drag, regulatory burden, customer expectations, and the need to move faster without losing control.
- 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 platform scenarios showing how Nucleus BankOS can make banking outcomes more measurable across operating cost, product delivery, infrastructure consolidation, compliance oversight, and customer experience.
Scenarios may include modeled outcomes, demonstrated capabilities, or capability-supported analysis.
Real-time Insights
Decision-Enabling Data
A regional bank needed real-time visibility into customer behavior during economic uncertainty. The executive dashboard revealed a 15% shift toward high-yield savings, letting the team launch a competitive product in 3 weeks instead of 6 months.
23% increase in deposit retention
Read full case studyDeep AI Analytics
Just-in-Time Products
A community bank struggled with manual cross-selling. Clara AI analyzed transaction patterns and triggered personalized loan offers when customers showed qualifying behavior.
~3x higher conversion on targeted offers
Read full case studyCost Containment
Improving the Bottom Line
A $2B credit union was spending $6.8M a year across 8 vendor contracts. adapfin consolidated everything into one platform.
$1.2M annual savings, 60% fewer vendors
Read full case studyRisk Management
Proactive Risk Management
A regional bank's risk team needed better portfolio analysis during rising rates. Built-in analytics enabled real-time stress testing across segments and geographies.
45% faster regulatory reporting
Read full case studyOps Automation
Automated SAR Drafts
A compliance team was manually reviewing 2,000+ transactions daily. DarkMatter cut false positives by 70% and auto-generated SAR drafts for genuine cases.
75% reduction in manual review time
Read full case studyCustomer Retention
Closer to Your Customers
A community bank's outdated app had a 2.1-star rating. The integrated experience platform delivered modern UX without new vendor contracts.
4.6-star app rating, 85% more mobile adoption
Read full case studyChange your bank’s economics without betting the bank.
Nucleus BankOS can run alongside your existing core, helping your institution validate lower TCO, vendor consolidation, and customer-journey-driven operations before a full-core decision.