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Every transaction, accounted for

Digital banking software that fits your core systems

We help banks, NBFCs and co-operative banks launch mobile banking, lending and branch tools that integrate with existing core banking rather than replacing it.

Modern channels on top of trusted cores

Most banks and NBFCs already run a core banking or loan system they cannot simply switch off. What customers and staff feel is the layer on top: the mobile app, the internet banking portal, the loan journey and the tools a branch officer uses every day. That layer is where slow processes and paper forms still cost time and customers.

We build for the digital teams of commercial banks, small finance banks, NBFCs, housing finance companies and co-operative banks. Typical needs include customer onboarding with KYC, loan origination and servicing, collections, and reporting that keeps pace with regulatory returns. Integration with the existing core through APIs, middleware or file-based interfaces is usually the deciding factor in project success.

Nexzem starts by documenting the interfaces your core and partner systems expose, then designs a channel layer that can evolve without destabilising them. We apply strict access control, encryption, maker-checker workflows and detailed audit logs throughout. Deliveries come with test evidence and documentation your IT security and audit teams can review before anything reaches production.

What banking & BFSI teams get with Nexzem

Scroll along the line: each outcome lights up as the signal reaches it.

  1. Core stays untouched

    New channels integrate through controlled interfaces, so your core banking vendor relationship and stability remain intact.

  2. Faster loan turnaround

    Digital applications and rule-based workflows remove manual handoffs between sales, credit and operations.

  3. Audit and control

    Maker-checker approvals, role-based access and complete logs give risk and audit teams the evidence they ask for.

  4. Phased modernisation

    We replace paper and spreadsheets one process at a time, so staff adapt gradually and risk stays low.

Banking & BFSI software we build

Digital banking, loan management and branch software for banks, NBFCs, co-operative banks and financial institutions.

Mobile and internet banking

Account views, fund transfers, bill payments, deposits and service requests in apps and portals connected to your core banking APIs.

Every build includes

  • Core stays untouched
  • Faster loan turnaround
  • Audit and control
  • Phased modernisation

Regulatory expectations for bank technology

Indian banks and NBFCs work under RBI directions that shape how software is built and run. The Master Direction on IT governance, risk, controls and assurance practices sets expectations for IT strategy, change management, access control and audits. The Master Direction on outsourcing of IT services makes the regulated entity responsible for its vendors, including audit rights and data access. Cyber incidents must also be reported to CERT-In within six hours.

In practice that means vendors must support information security audits and vulnerability assessments, keep payment data in India, provide documentation, follow change approval processes and give the bank's auditors access when asked. This is general information, not legal advice; your compliance team will map the exact obligations for your entity type. Budget time for these steps in every release plan.

Plan for these requirements in the architecture rather than in a final checklist. Role-based access with maker-checker approvals, immutable audit logs, encrypted data stores, separate environments for development and production, and documented change management make audits faster and reduce the risk of findings that delay a launch.

How to choose a banking software partner

Banking projects reward partners who respect controls rather than work around them. A good partner asks early about your security policies, maker-checker rules, audit requirements and core banking interfaces, and plans testing with your UAT and audit teams instead of treating them as a final hurdle. The questions below help separate experienced teams from generalists.

Also check how the partner works with your internal IT and vendor management teams. Banking programs involve security reviews, procurement and steering committees, and a partner used to this rhythm plans for it instead of being surprised by it. Ask for examples.

  • Which core banking or loan systems have you integrated with before?
  • How do you handle maker-checker approval and audit trails?
  • Can you deploy in our data center or private cloud?
  • How do you respond to IS audit and VAPT findings?
  • What happens to the code and documentation if the contract ends?
  • How do you document architecture and controls for our auditors?

Where AI fits in banking

Banks gain the most from AI in document-heavy and alert-heavy work. Models can extract data from loan applications, bank statements and property papers, prioritize anti-money laundering alerts for investigators, predict which overdue accounts will respond to which collection approach, and help relationship managers prepare for customer meetings. Each use needs explainable outputs, human sign-off for decisions affecting customers and model governance that auditors can review. These use cases also produce clear before and after metrics.

Start where errors are cheap to catch and value is easy to measure, such as document extraction reviewed by staff or alert prioritization that still leaves the final call to an investigator. Track accuracy and time saved, then expand to decisions with more customer impact once governance is proven.

How we build for banking & BFSI

Clear stages with a review at the end of each, so you always know what happens next and what it costs.

  1. 01

    Systems and interface audit

    We document your core, LOS and partner interfaces, data formats and security policies.

  2. 02

    Journey design

    Customer and staff journeys are redesigned with compliance and operations teams before screens are drawn.

  3. 03

    Integration layer first

    We build and test the middleware against UAT environments so channels have reliable data from the start.

  4. 04

    Channel development

    Apps, portals and staff tools are delivered in sprints with security testing on every release.

  5. 05

    UAT and rollout

    We support your UAT, security audit and phased branch or customer rollout, then provide ongoing maintenance.

Banking & BFSI use cases

  1. MSME loan journey in days, not weeks

    Applicants share GST returns and bank statements digitally, analysis runs automatically, credit officers review a summarized file with flagged risks and sanction letters are issued electronically, all with a complete audit trail.

  2. Mobile banking for a co-operative bank

    A co-operative bank launches a mobile app with balance checks, statements, fund transfers, UPI and fixed deposit booking, connected to its existing core through a secure integration layer and hosted to meet its security policies.

  3. Field collections app

    Collection agents get daily lists prioritized by risk, record visits with location and photos, collect payments through UPI links and log promises to pay, while supervisors see progress live and spot unusual patterns.

  4. Gold loan branch digitization

    Branch staff capture KYC, ornament photos and valuation on a tablet, the system calculates eligible amounts from current rates, and approvals, disbursement and receipts are generated in minutes with every step logged.

Technology behind our banking & BFSI software

Proven, well-supported tools chosen for your scale, budget and team, never for novelty.

  • Angular
  • React
  • Flutter
  • Java
  • Spring Boot
  • .NET
  • PostgreSQL
  • Kafka
  • Docker
  • Kubernetes

Banking & BFSI software FAQs

Something else on your mind? Ask a consultant and get a reply within one business day.

How is the cost of banking software decided?

Cost depends on the channels needed, the number of products such as deposits and loan types, the integration effort with your core banking system, security testing and the deployment model. We confirm a fixed quote after a free consultation and a review of your interface documentation.

Can you work with our existing core banking system?

Yes. We integrate through the APIs, middleware or file interfaces your core provides. Where APIs are limited, we design a safe integration layer with queuing and reconciliation rather than asking you to replace the core.

Can the software be hosted on premises?

Yes. We deploy to on-premises data centres, private cloud or public cloud regions in India, depending on your IT policy and regulatory guidance on data storage.

How do you secure banking applications?

We apply encryption, multi-factor authentication, device binding, role-based access, secure coding reviews and detailed audit logs. We also support your external security audit and fix any findings before go-live.

Do you work with co-operative banks and small NBFCs?

Yes. Smaller institutions often need a focused mobile app, loan management system or collections tool rather than a large programme, and we scope work to match that budget and team size.

Can you work within RBI rules on IT outsourcing?

Yes. We support the controls these directions expect from technology vendors: documented processes, access restrictions, audit cooperation, data localization, incident reporting support and clear exit provisions. Your compliance team defines the requirements, and we build them into contracts, architecture and day-to-day operations.

Can you help close IS audit and VAPT findings?

Yes. We review audit and penetration test reports, prioritize findings by risk, fix code and configuration issues, add missing controls such as logging or session management, and support retesting until findings are closed, documenting each change for the auditors.

We work with clients across the USA, UK, Australia, UAE, New Zealand and India.

Where we work

Software that fits how your sector works.

Share your workflows and compliance needs. We reply within one business day with a suggested approach and team.