Fintech products live or die on accuracy, security and auditability. CSNexa builds fintech platforms and features on Laravel and Symfony — payment gateway integrations, wallets and double-entry ledgers, reconciliation, lending and subscription billing, KYC onboarding flows and AI-assisted document processing — designed so every transaction can be traced and every change audited.
Who it's for
- Fintech startups building payments, lending, wallet or investment products
- Businesses adding payments, billing or reconciliation to existing Laravel or Symfony platforms
- Teams that need auditable, secure financial workflows with clear transaction histories
Fintech software we build
- Payment gateway integrations (Stripe, Razorpay, PayPal and more)
- Digital wallets and double-entry ledgers
- Payment reconciliation and settlement reporting
- Lending, EMI and subscription billing platforms
- KYC onboarding flows with third-party verification providers
- AI-assisted document extraction and anomaly flags
What you get
- Payment gateway integrations with webhooks, refunds and failure handling
- Wallets and double-entry ledgers with full transaction history
- Reconciliation jobs and settlement reports
- KYC onboarding flows connected to your chosen verification providers
- Role-based admin panels, audit logs and two-factor authentication
Ready to discuss your project?
Book a free discovery call and get a fixed-price quote within 4 hours.
Get Your Free EstimateUse cases
Payments and billing
Gateway integrations, subscription and EMI billing, invoices and refunds — with card data handled by the payment provider through tokenisation, so it never touches your servers.
Wallets, ledgers and reconciliation
Double-entry ledgers that make every balance traceable, plus reconciliation that matches your records against gateway and bank settlements.
AI in fintech workflows
AI-assisted extraction of data from invoices, statements and documents, and flags for unusual transactions for human review.
Technologies we use
How we deliver
Discovery & scoping
Free 30-min call, requirements workshop, technical feasibility, and fixed-price proposal.
Architecture & design
System design, wireframes, and sprint roadmap with clear milestones and acceptance criteria.
Agile development
2-week sprints, weekly demos, code reviews, and continuous integration from day one.
QA & security
Automated tests, UAT, performance checks, and security review before every release.
Launch & support
Zero-downtime deployment, monitoring, documentation, and SLA-backed post-launch support.
Why CSNexa
Fixed-price clarity
Scope, timeline, and cost agreed before a single sprint — no surprise invoices.
Senior-only engineers
No junior bait-and-switch. Your project is led by architects with 10–15+ years in production software.
Global delivery
UK, US, UAE, Australia — timezone overlap, fluent English, Slack + Jira transparency.
NDA & full IP
You own 100% of source code, designs, and documentation on completion.
Frequently asked questions
Which payment gateways can you integrate?
We integrate gateways such as Stripe, Razorpay and PayPal, along with others that offer a documented API, including webhooks, refunds and failure handling.
How do you handle card data and PCI DSS?
We design integrations so that card data is collected and tokenised by the payment provider and never stored on your servers, which keeps your PCI DSS scope as small as possible. Your compliance obligations remain yours to confirm with your provider and advisors.
Can you build a wallet or ledger system?
Yes. We build double-entry ledgers in which every balance change is a recorded, traceable entry, with reconciliation against gateway and bank settlements.
Do you handle KYC and compliance?
We build KYC onboarding flows that connect to the verification providers you choose. Regulatory compliance and licensing remain the responsibility of your business and its advisors; we build the software to support your compliance process.
Can you add AI to a fintech product?
Yes. Typical uses are extracting data from financial documents and flagging unusual transactions for human review, with care for data privacy and accuracy.
How much does fintech software development cost?
It depends on scope. After a free scoping call we provide a fixed-price quote for the agreed features.
Clear scope and milestones before development starts.
15+ years building production software.
You own the code on completion.
Get a free estimate for Fintech Development
Tell us about your project. We reply within 4 hours on business days with next steps and a fixed-price estimate.
Discuss your fintech project
Book a free 30-minute scoping call. We respond within 4 hours on business days.