01
API layer
Expose core functions as secure, well-documented APIs.
Banking Software Development for Secure, Digital-First Banks
Banking software development is building and modernizing the systems banks, credit unions and digital lenders run on: mobile and online banking apps, customer onboarding with KYC, loan origination and servicing, payments, open banking APIs, fraud detection and AI-powered customer service, all integrated with core banking platforms and built to strict security and regulatory standards. PerfectionGeeks builds custom banking software that modernizes the customer experience without putting the core at risk.
12+Years in Software Delivery
200+Projects Delivered
4.9/5Clutch Rating
Banking Software We Build
Mobile & Online Banking Apps
Accounts, transfers, bill pay, cards, statements, budgeting tools and secure messaging, with biometric login and device binding.
Digital Customer Onboarding (KYC)
Remote account opening with ID document verification, liveness checks, video KYC, sanctions screening and e-signature.
Loan Origination & Servicing
Applications, credit decisioning rules, document collection, approvals, disbursement, repayment schedules and collections.
Payments & Cards
Domestic and cross-border payments, UPI, real-time payment rails, card management (freeze, limits, PIN) and ISO 20022 messaging.
Open Banking APIs & Platforms
Secure APIs for account information and payment initiation, consent management and third-party developer portals.
Fraud Detection & AML
Real-time transaction monitoring, anomaly detection, case management and suspicious activity reporting workflows. Related: Machine learning development
AI Banking Assistants
Multilingual chatbots and voice bots that answer questions, resolve requests and hand off to agents with context. Related: AI chatbot development
Core Banking Integration & Modernization
Middleware and API layers around core systems (Temenos, Finacle, FIS, Fiserv, Jack Henry, Oracle FLEXCUBE), and phased core modernization.
Banking Analytics & Regulatory Reporting
Customer 360, profitability dashboards and automated regulatory report preparation.
How AI Is Used in Banking
Governed by design: AI models are documented, validated and monitored in line with model risk management guidance such as the US Federal Reserve's SR 11-7, with explainability for credit and fraud decisions.
| Use case | What it does | Typical outcome measured |
|---|---|---|
| Conversational AI | Handles balance, card, dispute and loan queries in multiple languages | Share of requests resolved without an agent; cost per contact |
| Churn prediction | Scores customers by likelihood to leave | Retention rate of targeted customers |
| Fraud detection | Scores transactions in real time | Fraud losses vs false-positive rate |
| Credit risk scoring | Adds alternative data and ML to credit decisions | Approval rate at the same risk level |
| Cash & liquidity forecasting | Predicts ATM and branch cash needs | Cash-out incidents, idle cash cost |
| AML alert prioritization | Ranks alerts by risk so investigators work the riskiest first | Investigator time per alert |
| Document AI | Extracts data from statements, payslips and IDs | Loan processing time |
| Agent copilots | Summarizes customer history and suggests next steps | Handle time, first-contact resolution |
What Is Open Banking?
Open banking lets customers securely share their bank data, or initiate payments, with authorized third-party apps through standardized APIs, with their explicit consent.We build bank-side API platforms, consent dashboards and fintech-side integrations.
| Market | Framework | What it requires |
|---|---|---|
| EU / UK | PSD2 and UK Open Banking standards | Banks provide secure APIs for account information and payment initiation, with strong customer authentication |
| US | CFPB Personal Financial Data Rights rule (Section 1033) | Custom quote |
| India | RBI Account Aggregator framework | Consent-based financial data sharing through licensed account aggregators |
Banking Security and Compliance We Build For
Security features we build in: biometric and multi-factor authentication, device binding, certificate pinning, jailbreak and root detection, encryption at rest and in transit, tokenization, fraud signals, and full audit logs.
| Requirement | What it covers |
|---|---|
| PCI-DSS v4.0 | Cardholder data protection |
| SOC 2 / ISO 27001 | Security controls and information security management |
| GLBA (US) | Safeguarding customer financial information |
| DORA (EU) | Digital operational resilience for financial entities, in force from 17 January 2025 |
| PSD2 strong customer authentication (EU) | Multi-factor authentication for payments and account access |
| RBI guidelines (India) | Digital lending, IT governance, data localization for payment data |
| AML / KYC rules | Customer due diligence, sanctions screening, transaction monitoring |
| ISO 20022 | Rich, structured payment messaging for cross-border and domestic rails |
| GDPR / DPDP Act | Personal data rights and consent |
| WCAG 2.2 | Accessible banking apps and websites |
Modernizing Around the Core, Safely
Replacing a core banking system is high-risk. Most banks get faster results by modernizing around it:
02
Digital front end
Launch new mobile and web experiences on those APIs.
03
Event streaming
Publish core events (transactions, balance changes) to power real-time features.
04
Offload
Move non-core capabilities (onboarding, lending, notifications) to modern services.
05
Progressive core migration
If needed, migrate products or customer segments to a new core in phases.
How Much Does Banking Software Development Cost?
A banking app MVP or single module typically costs $40,000–$80,000; a full digital banking platform, loan origination system or open banking platform typically costs $80,000–$150,000+, largely driven by security, compliance and core integration work.
| Product | Typical cost | Timeline |
|---|---|---|
| Banking technology assessment | $5,000–$15,000 | 2–4 weeks |
| AI chatbot for banking | $30,000–$80,000 | 8–14 weeks |
| Digital onboarding / KYC module | $40,000–$80,000 | 10–16 weeks |
| Mobile banking app (on existing core APIs) | $60,000–$150,000+ | 4–8 months |
| Loan origination system | $60,000–$150,000+ | 4–8 months |
| Fraud detection / ML model | $40,000–$100,000 | 3–6 months |
Our Banking Software Delivery Process
| Phase | What happens | Output |
|---|---|---|
| 1. Discovery & risk review | Goals, regulatory scope, core and data landscape | Requirements + risk register |
| 2. Architecture & security design | Integration approach, threat model, compliance mapping | Architecture + control matrix |
| 3. Prototype | Customer journeys tested with real users | Validated UX |
| 4. Build | Agile sprints with security reviews each sprint | Working releases |
| 5. Testing | Functional, performance, penetration and compliance testing | Test and security reports |
| 6. Launch | Phased rollout, monitoring, app store release | Live service |
| 7. Run & improve | SLAs, incident response, model monitoring, enhancements | Monthly service report |
Banking Technology Stack
| Layer | Technologies |
|---|---|
| Mobile & web | Swift, Kotlin, Flutter, React Native, React, Angular |
| Back end | Java (Spring Boot), .NET, Node.js, Go; PostgreSQL, Oracle |
| Integration | REST/OpenAPI, ISO 20022, Kafka, MuleSoft, IBM MQ |
| Core banking | Temenos, Infosys Finacle, FIS, Fiserv, Jack Henry, Oracle FLEXCUBE (integration) |
| Identity & KYC | OAuth 2.0 / FAPI, biometric SDKs, KYC/ID verification providers |
| AI & data | Python, XGBoost, PyTorch, LLMs (private deployment), Snowflake, Databricks |
| Security | HSMs, key management, WAF, SIEM, mobile app shielding |
| Cloud | AWS, Azure, GCP (regulated regions), private cloud |
Who We Build For
→ Related: Insurance software development
Retail and commercial banks
modernizing digital channels.
Credit unions and community banks
competing with fintech experiences.
Digital banks and neobanks
building on banking-as-a-service platforms.
NBFCs and digital lenders
needing loan origination and collections.
Payment companies
needing secure, compliant payment flows.
Why Banks Choose PerfectionGeeks
Security and compliance first:
controls designed in, not bolted on.
Core-safe modernization:
APIs and digital layers around your existing core.
Governed AI:
explainable, validated and monitored models.
Full-stack delivery:
mobile, web, back end, data and AI in one team.
12+ years, 200+ projects and 4.9/5 on Clutch
Plan Your Banking Modernization
Tell us your goals and current systems. We'll outline the architecture, compliance scope and roadmap in a free consultation.
Client Testimonials
PerfectionGeeks provided excellent service from start to finish. Their team was professional, easy to work with, and delivered exactly what we needed on time. We’re very pleased with the outcome and would gladly recommend them to others.
Thanaboon Mingkaew
CEO, SMART IOT
We partnered with PerfectionGeeks for a custom accounting automation software, and the experience was excellent. Their team delivered a high-quality solution that streamlined our operations and improved efficiency. Professional, skilled, and reliable — we’re already working with them on another project.
Saarthak Gupta
Founder, Ceos Accounting Services
As COO of TRP Construction Management, I’m proud of our growth from 300 to 16,000+ SKUs and 4,000+ vendors since 2022. Thanks to Shrey Bhardwaj and Perfection Geeks for delivering scalable, future-ready technology solutions that transformed our vision into a seamless pan-India platform. Highly recommended technology partner.
Mayank Pathak
COO, TRP Construction Management
PerfectionGeeks Technologies transformed our vision into reality with innovative technology solutions. Their professionalism, timely delivery, transparent communication, and commitment to quality made the entire collaboration smooth, reliable, and highly satisfying.
Armaan
Cofounder, Kzminer
I highly recommend PerfectionGeeks Technologies for mobile and web development services. Their expertise, dedication, creative ideas, and customer-focused approach helped our business achieve impressive digital growth successfully.
Chetna
Founder CEO , Klicked
Choosing PerfectionGeeks Technologies was the best decision for our company. Their skilled developers created a user-friendly platform, provided constant assistance, and ensured exceptional performance beyond our expectations every step.
Mark
CTO, IMSMART
Working with PerfectionGeeks Technologies was an excellent experience. Their team delivered our project on time with outstanding quality, smooth communication, innovative solutions, and professional support throughout the entire development process.
Naveen
Founder Director , Way2Kart
PerfectionGeeks Technologies delivered a smooth, professional experience with excellent communication and technical expertise. Their team understood project requirements clearly, provided timely updates, and ensured high-quality results that exceeded expectations.
Srinivasa Mothay
CTO, Sethu Fishries
PerfectionGeeks Technologies impressed with their innovative solutions, responsive support, and commitment to quality. The team handled every detail professionally, delivered on time, and created a seamless experience from start to finish.
Mervin
Cofounder & CTO, Clover Infinity
Frequently Asked Questions
How much does it cost to develop banking software?
<p>A banking app MVP or single module such as KYC onboarding typically costs $40,000–$80,000. A full mobile banking app, loan origination system or open banking platform typically costs $60,000–$150,000 or more, mainly driven by security, compliance and core integration.</p>
How is AI used in banking?
<p>Banks use AI for conversational customer service, fraud detection, credit risk scoring, customer churn prediction, AML alert prioritization, cash and liquidity forecasting, document processing for loans, and copilots for service agents.</p>
What is open banking?
<p>Open banking lets customers share their bank data or initiate payments with authorized third-party apps through secure, standardized APIs, with their explicit consent, under frameworks such as PSD2 in Europe and the Account Aggregator framework in India.</p>
What compliance standards apply to banking software?
<p>Common requirements include PCI-DSS for card data, SOC 2 and ISO 27001 for security controls, GLBA in the US, DORA and PSD2 in the EU, RBI guidelines in India, AML/KYC rules, ISO 20022 for payments, and data privacy laws like GDPR.</p>
Can you integrate with our core banking system?
<p>Yes. We integrate with core banking platforms such as Temenos, Finacle, FIS, Fiserv, Jack Henry and Oracle FLEXCUBE through APIs, middleware and event streaming, without changing the core.</p>
Should we replace our core banking system?
<p>Not necessarily. Many banks modernize faster and with less risk by adding an API layer, new digital channels and modern services around the existing core, and migrating the core later in phases if needed.</p>
What features should a mobile banking app have?
<p>Key features include secure biometric login, account overview, transfers and payments, card controls, bill pay, statements, notifications, budgeting insights, secure messaging, and in-app support or chat.</p>
How do you secure a banking app?
<p>We use multi-factor and biometric authentication, device binding, encryption, tokenization, certificate pinning, root and jailbreak detection, app shielding, fraud monitoring, penetration testing and full audit logging.</p>
How long does it take to build a banking app?
<p>A focused module like digital onboarding takes about 10–16 weeks. A full mobile banking app on existing core APIs typically takes 4–8 months, including security and compliance testing.</p>
Do you build software for credit unions and NBFCs?
<p>Yes. We build digital banking apps, loan origination, collections and member or customer portals for credit unions, community banks, NBFCs and digital lenders.</p>