Banking & Fintech Software Development — Core, Payments, Lending & Open Banking
Quick answer
What does Hurain Technologies build for banking & fintech?
Banks and fintechs are under pressure to open their platforms via APIs, modernize legacy cores, and meet open-banking and AML obligations without disrupting existing operations or customer trust.
Reviewed by Shahnavaz Syed, Founder · Last updated
Overview
Banking & Fintech software, built for how the industry really works
Banks and fintechs are under pressure to open their platforms via APIs, modernize legacy cores, and meet open-banking and AML obligations without disrupting existing operations or customer trust.
Banking & Fintech teams typically need: open banking and partner API programs; legacy core modernization without downtime; aML/KYC and transaction monitoring workflows; payment hub and cross-border rail integration; audit-ready security and compliance controls.
We work as an engineering partner for banking & fintech businesses — from discovery and architecture to build, compliance evidence and 24/7 support after launch — so your team can focus on customers, partners and regulators.
The challenge
What banking & fintech teams struggle with
Core systems that block product velocity
Vendor-locked core banking platforms turn a simple product change into a multi-quarter release cycle, while fintech challengers ship weekly.
Open banking deadlines without a clean path
Regulatory mandates require standards-compliant account and payment APIs on a fixed timeline, with no room for a risky core rewrite.
Manual AML/KYC review queues
Identity verification and sanctions screening still route through manual case queues, slowing onboarding and creating audit exposure.
Fragmented cross-border rails
Correspondent banking, card networks, and instant payment schemes are stitched together ad hoc, causing reconciliation gaps and settlement delays.
Our approach
How we build for banking & fintech
Open banking & partner API programs
We design and build account information and payment initiation APIs with OAuth2/OIDC consent flows and self-service developer portals that cut partner onboarding from weeks to days.
Core modernization without a big-bang rewrite
Strangler-fig migration wraps legacy cores in modern middleware, letting you ship new products without a risky, multi-year core replacement.
AML/KYC and transaction monitoring automation
Automated identity verification, sanctions/PEP screening, and ML-driven transaction monitoring replace manual review queues and shrink false positives.
Cross-border payment hub integration
A central orchestration layer connects card networks, correspondent banks, and instant payment rails behind one reconciled ledger.
Audit-ready security & compliance controls
Secure architecture review, immutable audit logging, and regulator-ready reporting are built into the platform ahead of your next licensing or partner audit.
Typical projects
Digital lending
Loan origination, credit decisioning, disbursement and collections.
Open banking & APIs
Account information, payment initiation and partner API platforms.
Core banking modernisation
Wrap legacy cores with APIs and move channels to modern stacks.
Wealth & investment apps
Portfolio, trading and advisory platforms with compliance controls.
Cost & timeline
How much does banking & fintech software cost and how long does it take?
Delivery time is agreed around your scope and split into milestones you sign off before paying. These are the factors that move the price most:
- Licence model and partner-bank integrations
- Ledger and product complexity
- KYC/AML vendor integrations
- Core-banking or legacy integrations
- Security certifications (PCI DSS, ISO 27001, SOC 2)
- Data-residency requirements
Technology
Core
- Java / Kotlin
- Go
- Node.js
- PostgreSQL
Integration
- Open Banking APIs
- ISO 20022
- Kafka
- API gateways
Our delivery process
- 1
Regulatory & product discovery
Licence model, partners, compliance obligations and the core user journeys mapped with your team and counsel.
- 2
Architecture & threat model
Data model, security controls, integrations and hosting/residency decisions agreed before build.
- 3
Core build
Ledger, onboarding (KYC/KYB), payments, back-office controls and reporting built in sprints.
- 4
Security & compliance testing
Penetration testing, reconciliation and audit-trail checks, and evidence packs for auditors or partners.
- 5
Controlled launch & 24/7 support
Staged rollout, monitoring, incident response and regulator-ready reporting.
Standards we build to
- AML/CFT and sanctions screening
- PCI DSS
- Open Banking / PSD2-style API standards
- Data-protection and residency rules
Live Demos
A selection of platforms we've designed and built
Real, working builds across fintech, compliance, healthcare, and commerce — the same engineering team would build your banking & fintech project.
Nexa
SaaS-style product dashboard and workflow UI for a fintech platform.
Open live demoDebt Management
Debt management and collections tracking platform.
Open live demoAML Compliance Suite
Anti-money-laundering compliance and case-monitoring suite.
Open live demoUMARSOB Data
Android VTU/data-reseller platform with wallet, agent/referral system, and admin panel.
Open live demoHospital Management
Hospital/clinic management system covering patient records, appointments, staff, and billing.
Open live demoDMI CHW App
Offline-first Community Health Worker counseling app with a central management platform, built for an NGO client.
Open live demoHomemakers Pro
Enterprise operations system for a domestic staffing agency covering bookings, staff, and client management.
Open live demoE-Commerce (Multi-Locale)
E-commerce storefront demo with multi-language, locale-based support.
Open live demoMars
Legal web application prototype.
Open live demoBusiness value
What Banking & Fintech does for your business
Benefits for your company
- Ship products without replacing the core. Wrap legacy cores in modern APIs so new products launch without a risky rewrite.
- Automated compliance. AML/KYC and monitoring automation shrink manual queues and audit exposure.
- Connected payment rails. One integration layer across cards, instant payments and cross-border schemes.
How it can earn or save money
- New digital products. Faster releases let banks and fintechs add paid products and partner channels sooner.
- Embedded finance. Open APIs let partners distribute your accounts, payments and lending for a fee.
- Lower cost-to-serve. Automation reduces per-customer servicing and compliance cost.
Illustrative revenue and saving lines, not guaranteed results: outcomes depend on your market, licences and execution.
How we work
How we deliver Banking & Fintech Software
Every banking & fintech software engagement follows the same staged, quality-gated process — shaped around your requirements. You see progress every day, review it every week, and give written sign-off at every milestone before any payment is due.
- 01
Discover
PCI scope set- Payment-flow workshops
- PSP & rail selection
- Compliance scoping (PCI DSS)
- Signed scope
- 02
Design
Flows approved- Orchestration architecture
- Ledger & reconciliation model
- Tokenisation design
- Fraud-rule design
- 03
Build
Sandbox passed- PSP adapter sprints
- Idempotent payment APIs
- Settlement & refunds
- Demo every sprint
- 04
Secure & Test
Reconciled & UAT- PCI DSS scope review
- Reconciliation tests
- Failover & retry tests
- UAT with real flows
- 05
Deploy
Live traffic OK- Staged traffic routing
- Live PSP credentials
- Monitoring & alerts
- Go-live checklist
- 06
Handover
Ops handed over- Role-based sessions
- Recorded walkthroughs
- Admin & ops runbooks
- Documentation handover
- 07
Support
SLA active- Dedicated engineer
- SLA helpdesk
- Patches & upgrades
- Quarterly reviews
Client sign-off at every milestone — you approve the working result before you pay.
You always know what was done today — and what happens next
A written daily update, a weekly work overview and a live demo every sprint — so there are no surprises at milestone time.
Every working day
- What was completed today
- What is planned for tomorrow
- Blockers and decisions needed from you
- Links to builds you can try
Every Friday, with a live call in your business hours
- Features completed and demo recordings
- Progress against the current milestone
- Risks, open questions and change requests
- Plan and priorities for next week
End of every sprint and milestone
- Working software demonstrated live
- Your feedback captured in the backlog
- Quality-gate checklist shared
- Written sign-off before any payment
Payment plan
Pay only for work you have accepted
Milestones are customised to your requirements — six or more is typical, and delivery time is agreed around your scope. Every payment after the advance is released only after you have seen the working result and given written sign-off. Here is an example plan:
| Payment | Milestone & acceptance | Share |
|---|---|---|
| Advance | Contract signing Signed contract; payment-flow workshops and PCI DSS scoping. | 10% |
| Milestone 1 | Architecture approved Orchestration, ledger and reconciliation design signed off. | 15% |
| Milestone 2 | First rail live in sandbox Payment APIs, ledger and first PSP connector working. | 15% |
| Milestone 3 | All rails connected Remaining PSPs, refunds and settlement working in staging. | 15% |
| Milestone 4 | Certification & tests PCI DSS scope review, failover and reconciliation tests passed. | 15% |
| Milestone 5 | UAT sign-off Real payment flows accepted by your team. | 15% |
| Milestone 6 | Live traffic & handover Staged production routing, monitoring and ops handover. | 15% |
| Total | 100% | |
- Number of milestones and splits set around your scope
- Every milestone is a working, demonstrated result
- No payment is due until you sign off
Warranty & annual support
Protected after launch — warranty and annual support for your Banking & Fintech Software project
Go-live is where your banking & fintech software product starts earning — so we stay accountable for it. Every project includes a free 90-day defect warranty. After that, the same team that built it keeps it secure, updated and running on a fixed annual fee agreed up front — no open-ended hourly billing, no surprise invoices.
Included free
90-day warranty
Any defect found in the first 90 days after go-live is fixed free of charge.
- Every delivered feature covered
- Fixes tested and deployed to production
- Same engineers who built it
Fixed-cost annual package
30% of project cost
per year for Annual Support & Maintenance, with a dedicated developer assigned to your banking & fintech software platform. A fixed price, known in advance.
| Service | Included in the annual package |
|---|---|
| Dedicated developer | One named developer assigned to your product for fixes, enhancements and optimisation. |
| Bug fixes & security patches | Critical issues resolved within 24 hours; standard issues within 5 business days. |
| Upgrades & new releases | Framework, library and platform updates plus new versions of what we built, at no additional cost. |
| Helpdesk | Email and phone support for your team and administrators; 4-hour response for critical issues. |
| Backup monitoring | Daily backup checks and a quarterly restore test. |
| Security review | Periodic audit-trail review and security configuration check. |
| PSP & scheme changes | Provider API versions, card-scheme and 3-D Secure changes applied before their deadlines. |
| Reconciliation checks | Settlement and reconciliation exceptions reviewed and resolved every day. |
| Regulatory reporting checks | Scheduled regulatory and management reports checked for completeness. |
Source code & IP ownership
100% of the source code and IP is owned by you
For every custom banking & fintech software project, upon full and final payment the complete source code and intellectual property are transferred to you — so you can host, maintain and enhance the system with any developer.
- Payment orchestration, ledger and admin source code
- PSP merchant accounts and credentials in your name
- Reconciliation rules and ops runbooks
- Complete Git repository with full commit history
- Database schemas, migrations and seed data
- Configuration, CI/CD and deployment scripts
- API documentation and a deployment guide
No lock-in
No forced upgrades
No subscription trap
Your code lives in your own repository from the first commit.
Continuous enhancement
Launch is just the beginning — keep shipping with your own dedicated team
Your banking & fintech software platform should get better every month, not stand still after go-live. Start with one dedicated developer working on your priorities across apps, dashboards and backend — and grow to a full team of developers and support members whenever your roadmap demands it.
Dedicated team, your way
From one developer to a full team
Pricing is based on the team members you need — tell us your requirements and we will quote your team.
- Start any time after launch
- Hire developers as you need them
- Scale up, scale down or pause
What your team can take on after launch
- New account, card and savings products
- Open-banking and core-banking integrations
- Onboarding, KYC and customer-app improvements
- New PSPs, payment methods and currencies
- Smarter routing and fraud rules
- New reports, payouts and reconciliation automation
Need more hands? Add developers and support members as your requirements grow
Start with one person and add only the roles your banking & fintech software roadmap needs — each is quoted to your requirements.
Development team
Core-banking integration engineer
Connects core banking, card processors and open-banking APIs.
Payments backend developer
Adds payment methods, routing rules and ledger features.
Integration engineer
Connects new PSPs, banks, acquirers and third-party APIs.
Frontend developer
Builds and refines the web screens and dashboards your users see.
QA engineer
Writes and runs manual and automated tests before every release.
DevOps engineer
Keeps pipelines, environments and deployments fast and reliable.
Support team
L1 helpdesk support executive
First contact for your users and staff — logs, triages and resolves common issues.
L2 technical support engineer
Investigates bugs, data issues and integrations, and escalates to developers with full context.
Customer onboarding & KYC support
Resolves onboarding, verification and account queries.
Payment operations support
Resolves failed payments, refunds and payout issues.
Reconciliation & disputes support
Handles settlement breaks, chargebacks and disputes.
Our Approach
Our approach to development methodologies
Our approach to custom software engineering draws on a range of methodologies, each selected to match the needs of your banking & fintech software project.
Agile Scrum
Best for: Evolving products
Two-week sprints with a working demo at the end of each, so banking & fintech software priorities can change as you learn from users.
Kanban
Best for: Continuous delivery & support
A visual flow of small tasks with work-in-progress limits — ideal for maintenance, integrations and post-launch improvements.
Fixed-scope (Waterfall-style)
Best for: Well-specified builds
Requirements signed off up front with a fixed timeline and price — best when scope is clear and change is unlikely.
Lean MVP
Best for: New ventures
Build the smallest banking & fintech software release that proves demand, measure it with real users, then invest where the data points.
DevOps & CI/CD
Best for: Every project
Automated tests, infrastructure-as-code and push-button deployments so releases are frequent, reversible and boring.
Security-by-design (DevSecOps)
Best for: Regulated & high-value systems
Threat modelling, dependency scanning and code review built into each sprint rather than a pen test at the end.
Why we're different
What sets Hurain Technologies apart
Plenty of agencies can build banking & fintech software. Here is what sets us apart for clients worldwide.
Engineering depth, not a reseller
Your banking & fintech software project is designed and built by our own in-house engineers — no hidden subcontracting chain between you and the people writing code.
Built for your market, not a template
Payments, tax, language and data-protection requirements for your target market are part of the design from day one instead of retrofitted after launch.
Transparent, senior-led delivery
A named project lead, a shared backlog, fortnightly demos and direct Slack access to the engineers — you always know what is being built and why.
Cost advantage without cutting corners
Delivering from India gives clients worldwide senior engineering at a fraction of typical onshore agency rates, with the same code-review, testing and security standards.
You own everything
Source code lives in your repository from the first commit; IP, infrastructure accounts and documentation transfer to you in full.
We stay after launch
Monitoring, updates and a support SLA mean the team that built your product is the team that keeps it running.
Flexible engagement models
How we work with banking & fintech software clients worldwide
Ways to work together, depending on how your team and roadmap are set up.
Dedicated Development Team
An extended team of banking & fintech software engineers, QA and architects working exclusively on your product, managed day-to-day by you with our engineering leadership behind them.
Best for: Long-term products and evolving roadmaps
Fixed-Cost Delivery
A clearly scoped banking & fintech software build with a defined timeline and price — ideal for a well-specified MVP, integration or launch product.
Best for: MVPs and clearly defined projects
Hybrid Engagement
Keep product and regulatory decisions close to your team while our specialists handle deep engineering remotely, with workshops or on-site visits at key milestones.
Best for: Enterprises and regulated businesses
Why businesses choose us
Why businesses choose Hurain Technologies
16+ years of engineering depth
Custom software engineering with in-house teams across web, mobile, cloud, AI, payments and blockchain.
Security-first by default
Encryption, least-privilege access, audit logs — and MPC/HSM custody and audited smart contracts where money is on-chain — designed in, not retrofitted.
Regulatory-aware architecture
Designed with your target market's regulatory direction in mind and built alongside your licensed local legal counsel.
Direct access, no layers
Direct Slack or Teams access to your development team during the build, and the same people for post-launch support.
Business benefits
What you gain
Faster time to market
An experienced banking & fintech software team with proven components means your first release ships in weeks, not quarters.
Security-first architecture
Secure from day one, rather than patched after an audit or incident.
Aligned compliance groundwork
Controls, logs and data handling built around your target market's requirements so reviews go faster.
Lower total cost of ownership
Clean, documented, tested code that your own team can maintain — plus post-launch monitoring and support.
What happens next
From your banking & fintech software enquiry to a working demo — in about a day
- 01Within 10 minutes
We respond to your enquiry
Send your banking & fintech software enquiry by form, email or WhatsApp — a few lines is enough. Our team replies within 10 minutes, any day, any time, to set up a meeting at a time that suits you.
- 02Requirements meeting
We understand your requirements
In a focused meeting we go deep on your users, features, integrations, timeline and budget — so we build exactly what your business needs. NDAs signed on request.
- 03Within 24 hours
You see a demo of your banking & fintech software
Within 24 hours of our meeting we prepare and share a demo — so you see your banking & fintech software taking shape before you commit to anything.
- 04As per your budget
We share a tailored proposal
A clear proposal for your banking & fintech software project with scope, milestones, team and timeline — shaped around your budget, with no hidden costs and no obligation.
Available 24×7 — three 8-hour shifts, every day
FAQ
Banking & Fintech software: frequently asked questions
What does Hurain Technologies build for banking & fintech?
How long does banking & fintech software development take?
How much does banking & fintech software development cost?
Can you build open banking APIs without a full core system rewrite?
How do you handle AML/KYC compliance during integration?
Can you integrate with our existing card and payment rail providers?
What does an open banking API project timeline look like?
Do you help us prepare for a banking regulator or partner security audit?
Do you build the complete banking & fintech solution, or only integrate with what we already use?
We are not sure about our budget yet. Can you still help?
By location
Banking & Fintech software by country and city
Each location page covers local regulation, payment methods, tax, data-protection law and 24/7 support.
Priority markets
Major cities
All countries
Related engineering services
Other industries
Building for banking & fintech?
Share your idea — we respond in 10 minutes, share a demo within 24 hours of our meeting, and a proposal as per your budget.