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Banking software development services

Custom banking software development. Regulated environments. Proven at enterprise scale.

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Who we work with

Regional banks

Mid-size banks modernizing core systems, onboarding, and digital channels.

Credit unions

Member-owned institutions upgrading onboarding, mobile banking, and core systems.

Investment banks

Firms building trading platforms, portfolio analytics, and AI-powered data tools.

Digital banks

Growth-stage banks needing custom infrastructure fast.

Private banks

Wealth firms needing advisor platforms and AI analytics.

Lenders

Lenders needing loan origination, ML scoring, and KYC.

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Our services

As a banking software development company, we deliver custom banking software that helps enterprise fintechs reduce risk, accelerate delivery, and scale faster.

AI solution development

We design and deploy AI systems for banks: credit scoring models, fraud detection engines, NLP document processors, and analytics platforms.

Full-cycle custom development

We manage every stage of custom banking software development: discovery, architecture, UI/UX, engineering, QA, and compliance review. One team, full accountability throughout.

API and integration development

We connect banking platforms to 50+ financial service providers through secure, well-documented APIs, custom middleware, and data connectors.

Payment system development

We build PCI DSS-compliant payment infrastructure: wallets, multi-currency processing, kiosk ePOS integration, and fiat-to-crypto support.

Core banking modernization

We modernize legacy core banking infrastructure, including AS400 systems, through custom middleware without disrupting live operations.

Digital onboarding implementation

We build omnichannel onboarding platforms with automated KYC/KYB, document verification, biometric matching, and BSA/AML compliance flows.

Mobile and web app development

We deliver secure banking apps for retail and corporate clients with authentication, card management, notifications, and payment processing.

QA, security and compliance

Every solution passes penetration testing, functional QA, and compliance checks against SOC 2, ISO 27001, PCI DSS, GDPR, and NCUA standards.

AI solution development

We design and deploy AI systems for banks: credit scoring models, fraud detection engines, NLP document processors, and analytics platforms.

Full-cycle custom development

We manage every stage of custom banking software development: discovery, architecture, UI/UX, engineering, QA, and compliance review. One team, full accountability throughout.

API and integration development

We connect banking platforms to 50+ financial service providers through secure, well-documented APIs, custom middleware, and data connectors.

Payment system development

We build PCI DSS-compliant payment infrastructure: wallets, multi-currency processing, kiosk ePOS integration, and fiat-to-crypto support.

Core banking modernization

We modernize legacy core banking infrastructure, including AS400 systems, through custom middleware without disrupting live operations.

Digital onboarding implementation

We build omnichannel onboarding platforms with automated KYC/KYB, document verification, biometric matching, and BSA/AML compliance flows.

Mobile and web app development

We deliver secure banking apps for retail and corporate clients with authentication, card management, notifications, and payment processing.

QA, security and compliance

Every solution passes penetration testing, functional QA, and compliance checks against SOC 2, ISO 27001, PCI DSS, GDPR, and NCUA standards.

Banking software solutions

Every banking software solution we build is designed to optimize banking workflows, reduce manual effort, and meet the compliance requirements of regulated financial institutions. These are the core banking software products our banking clients deploy in production. Each solution is built as a long-term banking asset, not a short-term fix.

Banking software solutions

As a banking software development company, we deliver custom banking software that helps enterprise fintechs reduce risk, accelerate delivery, and scale faster.

Client-facing systemsInternal operationsIntelligence layer

Online banking portal

We develop secure, resilient online banking platforms for account servicing, payments, statements, and customer support. Modular architecture supports controlled expansion, while banking-grade security is embedded across every customer interaction.

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Mobile banking apps

Mobile banking applications for iOS and Android, designed for secure access, payments, card management, alerts, and transaction insights—with end-to-end delivery from UX to ongoing support.

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Digital customer onboarding

Automated KYC/KYB, document and biometric verification, OFAC/​PEP screening, and BSA/AML compliance in one flow—cutting account opening from 5 days to 15 minutes for a Top-7 U.S. federal credit union.

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Why choose Itexus

Itexus addresses vendor security review requirements around access, infrastructure, recovery, and continuity through documented and enforced controls.

Enterprise proven

Delivered for a Top-7 U.S. credit union ($19B), Coinstar ($2.2B), and a Top-20 asset manager ($1.5T AUM).

Compliance built in

SOC 2 Type II, ISO 27001, PCI DSS, NCUA, BSA/AML engineered from day one, not added at the end.

Predictable delivery

Transparent scope, milestone-based execution, and cost control reduce delivery uncertainty and risks.

Fintech focus

300+ fintech projects. 50+ financial API integrations. 100% fintech, no generalist engagements.

Additional services

We cover the full technology stack financial institutions depend on: AI solution development, cloud migration, managed services, legacy system modernization, and data engineering and analytics.

DevOps and managed services

After launch, we provide ongoing support: performance monitoring, security patching, CI/CD pipeline management, and infrastructure scaling. Our teams operate in U.S. and European time zones.

Data engineering and analytics

We build data pipelines, warehouses, and BI solutions that turn raw banking data into actionable insights. From regulatory reporting to customer analytics, we help institutions make better decisions.

AI solution development

We build AI systems that score credit risk, catch fraud before it clears, and automate AML/KYC and compliance document review.

Legacy system modernisation

We refactor and rebuild outdated banking platforms without disrupting live operations, replacing fragmented legacy infrastructure with modular architectures that reduce maintenance costs.

Cloud migration

We migrate banking systems from on-premises to AWS or Azure, rebuilding where necessary for resilience and scalability. Zero-downtime migration and data security are planned from the start.

DevOps and managed services

After launch, we provide ongoing support: performance monitoring, security patching, CI/CD pipeline management, and infrastructure scaling. Our teams operate in U.S. and European time zones.

Data engineering and analytics

We build data pipelines, warehouses, and BI solutions that turn raw banking data into actionable insights. From regulatory reporting to customer analytics, we help institutions make better decisions.

AI solution development

We design and deploy AI systems for financial institutions: credit scoring models, fraud detection engines, regulatory compliance automation document processors, and investment analytics platforms.

Legacy system modernisation

We refactor and rebuild outdated banking platforms without disrupting live operations, replacing fragmented legacy infrastructure with modular architectures that reduce maintenance costs.

Cloud migration

We migrate banking systems from on-premises to AWS or Azure, rebuilding where necessary for resilience and scalability. Zero-downtime migration and data security are planned from the start.

AI-powered banking software

Based on our work with large financial institutions, AI-powered banking software development helps teams reduce manual data work, cut operational costs, accelerate service delivery, and ease the compliance burden within the first quarter after launch.

ML credit scoring

Custom ML models trained on your loan portfolio for faster decisioning and lower default rates.

AI fraud detection

ML models trained on transaction patterns spot irregular signals early, reducing false alerts and manual review effort.

AI investment analytics

AI-generated insights for advisors: portfolio analysis, market data, and personalized recommendations. Advisors reduced manual data work by 60%.

AI finance analytics

Monitors operations, flags hidden issues, and automates routine reporting. Delivered 24% productivity increase and 19% cost reduction.

64%

reduction in onboarding time

80%

manager routine tasks 
automated

24%

team productivity 
increase

19%

development cost 
reduction

60%

analyst time saved 
on data work

How we work

Every banking software project at Itexus follows a structured process built around your compliance requirements and delivery timeline. Our company does not adapt generalist workflows to banking; we build banking-specific processes from the ground up.

1

Discovery and requirements

We run structured sessions with your product, compliance, and technical stakeholders. Output: requirements document, architecture proposal, and project estimate. No generic templates. No assumptions left unresolved.

2

Architecture and UI/UX design

Our architects define the system structure, integration points, and security model. UX designers deliver wireframes and interactive prototypes before a line of code is written.

3

Agile development

We build in two-week sprints with parallel workstreams where scope allows. You receive working software at the end of every sprint. Compliance checkpoints are embedded in the process, not added at the end.

4

QA and security testing

Every release goes through functional testing, penetration testing, and performance testing. We do not ship banking software without a full regulatory compliance review.

5

Deployment and handover

We deploy to your environment, configure monitoring and alerting, and run knowledge transfer sessions for your team. Documentation is delivered as part of the engagement, not as an afterthought.

6

Ongoing support

Post-launch managed services are available: bug fixes, feature additions, security patches, and infrastructure scaling. Most clients continue working with us past the initial delivery.

Our banking software development cases

Digital banking transformation for a Top-7 U.S. Federal Credit Union

Digital Banking Transformation for a Top-7 U.S. Federal Credit Union Digital banking transformation for a Top-7 U.S. Federal Credit Union

PCI DSS-compliant wallet and payment ecosystem with mobile wallet apps, ePOS kiosk software, web applications, and a cloud API server for digital asset trading, bank account linking, crypto-fiat-cash conversions, and online payments. A credit union with $19B in assets and 1.4M members was opening accounts in a process that took up to 5 days. Compliance with BSA/AML, OFAC, and NCUA requirements added significant friction to every application.

15 min

account opening time

99.95%

platform uptime

5,000+

applications processed monthly

0

audit findings (SOC 2, ISO 27001, NCUA)

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Digital wallet ecosystem for Coinstar

Digital Wallet Ecosystem for Coinstar, a $2.2B Global FinTech Company Digital wallet ecosystem for Coinstar ($2.2B revenue)

Coinstar needed a new digital product: a PCI DSS-compliant ecosystem enabling bank account linking, fiat-to-crypto conversion, cryptocurrency trading, and kiosk ePOS integration across their physical network.

50+

digital assets supported

PCI DSS

certified across all flows

Global

kiosk network integrated

$2.2B

enterprise client served

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AI analytics platform for a Top-20 Asset manager

AI analytics platform for a Top-20 Asset manager ($1.5T AUM) AI analytics platform for a Top-20 Asset Manager ($1.5T AUM)

Investment advisors were spending too much time on manual data gathering. The firm managed hundreds of advisors and needed a scalable AI-driven solution to generate personalized insights at scale.

60%

reduction in manual data work

1.5T

AUM of client served

100s

of advisors on the platform

Top 20

global asset manager

Read More
Book a discovery call

FAQs

Let’s discuss your project

1

Share your project context

Tell us about your product, legacy platform, integration challenge, or AI initiative. We’ll respond within 24 hours and sign an NDA if needed.

2

Run fintech discovery

Define scope, risks, integrations, compliance requirements, architecture, and delivery priorities with fintech analysts and software architects.

3

Receive an AI-ready blueprint

Get structured requirements, architecture documentation, UI/UX direction, technical guardrails, and a feature-by-feature estimate.

4

Launch development faster

Get the first production-ready version of your product within weeks with our AI-first development approach for greenfield projects — ready for further extension and enterprise scalability.