Core Banking Platform Development
Modern core banking components — ledger, product engine, interest, fees and limits — or integration with existing cores.
- ClientCheckout · wallet
- APIIdempotency key
- Identity & KYCVerified
- Risk & complianceRules passed
- Payment gatewayAuthorised → captured
- LedgerDouble-entry posted
- SettlementBank rail · T+1
Journal entry · balanced
| Account | Debit | Credit |
|---|---|---|
| Customer funds | 120.00 | — |
| Merchant payable | — | 118.20 |
| Fee revenue | — | 1.80 |
Division
Service area
Digital Banking & Neobanks
Engagement
Project · Team · Managed
Overview
The core is where accounts, balances, interest, fees and limits are defined and enforced. We build modern core banking components — a double-entry ledger, configurable product engine, accrual and fee calculation, limits and holds — for new banking products, and integration middleware for institutions keeping their existing core. Designs emphasise real-time processing, event streams for downstream systems and complete auditability.
Common use cases
- Greenfield digital coreA modern core for a new bank or product line.
- Sidecar coreA modern ledger running alongside a legacy core for new products.
- Core integration layerReal-time APIs and events over an existing core.
- Core migrationPhased migration from a legacy core.
Quick answers
Core Banking Platform Development at a glance
The essentials in brief. Every project is scoped individually — ask us for specifics.
- What is core banking platform development?
- Modern core banking components — ledger, product engine, interest, fees and limits — or integration with existing cores.
- Who is it for?
- Typically neobanks, payment companies, lenders, wealth platforms and financial institutions building or modernising customer-facing and back-office systems.
- What does Shivacha provide?
- Double-entry ledger
- Product engine
- Interest & fees
- Limits & controls
- Event streaming
- End-of-day processing
- Which technologies are used?
- Double-Entry Ledgers, Java, Apache Kafka, PostgreSQL, ISO 20022, Open Banking APIs — chosen to fit your stack and constraints.
- How does the process work?
- Product & partner model → Core design → Integrations → Experience build → Launch readiness.
- What affects the cost?
- Banking, card, payment and KYC partners to integrate
- Ledger and reconciliation complexity
- Number of currencies, countries and payment rails
- Compliance, reporting and audit requirements
- Mobile, web and back-office scope
- Availability and disaster-recovery targets
- How long does it take?
- A regulated-market MVP usually takes 4–7 months including partner integrations; extensions to an existing platform can ship in weeks.
- How do I get started?
- Share a short brief in the form below, book a 30-minute call or message us on WhatsApp. A senior engineer replies within one business day; NDA on request.
Capabilities
What we deliver
Double-entry ledger
Immutable journal, balances and holds.
Product engine
Configurable deposit and lending product definitions.
Interest & fees
Accrual, capitalisation and fee rules.
Limits & controls
Transaction, velocity and exposure limits.
Event streaming
Real-time events to channels, risk and reporting.
End-of-day processing
Batch jobs, statements and regulatory data feeds.
Architecture
Engineered right from day one
The layers we typically design for digital banking & neobanks, adapted to your stack and partners.
- Ledger accuracyDouble-entry accounting with immutable journal entries and daily reconciliation.
- Partner abstractionBaaS and banking partners behind adapters to avoid lock-in.
- Operational toolingBack-office for support, disputes, limits and manual adjustments with maker-checker.
- Regulatory positioningRegulated services provided by licensed partners; we deliver the technology.
Delivery
How an engagement runs
- 1
Product & partner model
Define products, customer segments and licensed partners providing regulated services.
- 2
Core design
Account structures, ledger, product rules and money movement flows.
- 3
Integrations
Sponsor bank or core system, payment schemes, card processor, KYC and screening providers.
- 4
Experience build
Onboarding, accounts, payments and support journeys across mobile and web.
- 5
Launch readiness
Testing with partners, operational tooling, reconciliation and controlled launch.
Security
Security built into delivery
Controls we apply by default on this kind of work — not a separate phase at the end.
Ledger integrity
Double-entry, immutable journals and daily reconciliation against partners.
Idempotent money movement
Every payment operation safe to retry, with no double-spend.
Access control
Maker-checker approvals, least privilege and full audit logging.
Data protection
Encryption in transit and at rest, tokenised card data and PCI-aware architecture.
Technology
Tools we use for this
Products
Start from a platform
Shivacha Digital Bank
A configurable digital banking platform for banks and licensed partners.
Learn moreShivacha Neobank
Launch a mobile-first neobank on a platform built to scale.
Learn moreShivacha Banking API
Secure, versioned banking APIs over any core — with sandbox and developer portal.
Learn moreRelated services
Often combined with
FinTech Software Development
FinTech software development across banking, payments, lending and wealth — ledger-first, partner-ready and built for audit.
Learn moreDigital Banking Development
Build digital banking platforms for retail and business customers — onboarding, accounts, payments, cards and servicing.
Learn moreNeobank Development
Launch a neobank with a mobile-first experience, modern ledger and licensed banking partners — from MVP to scale.
Learn moreDedicated team
Banking Technology Team
Engineers for digital banking, core integration and banking APIs.
Work & insights
Related thinking
Ledger-first architecture for a partner-bank neobank
How we structure a neobank so that balances always reconcile with the sponsor bank and partners can be added or replaced.
Learn moreStablecoin settlement layer for a card-accepting payment platform
A hybrid design that lets merchants accept cards as usual while optionally settling in stablecoins.
Learn moreYour ledger is your product: designing money movement that always reconciles
Fintech products are judged on experience but survive on correctness. A double-entry ledger at the core is what makes balances provable.
Learn moreFAQ
Frequently asked questions
Should we replace our core banking system?
Full replacement is a major, multi-year effort. Many banks gain more by adding a modern sidecar core or integration layer and migrating products gradually.
Does the ledger support multiple currencies?
Yes, with currency-specific accounts, FX postings and precise minor-unit accounting.
Do we need a banking licence to launch a neobank?
Many neobanks launch in partnership with a licensed sponsor bank or e-money institution, while others hold their own licences. That is a legal and strategic decision for you and your advisors; our platforms support both models technically.
Can you integrate with our existing core banking system?
Yes. We build API layers and middleware over existing cores, or implement a modern ledger alongside the legacy core for new products.
Next step
Discuss Your FinTech Product.
Tell us about your core banking platform development requirements — goals, timeline and constraints. We will reply with questions, an approach and next steps.
- Senior engineer reads every enquiry
- Reply within one business day
- NDA on request
Your details are used only to reply to this enquiry.