Custom Software for Banks and Financial Institutions

Which banking processes is the system suitable for?

The project starts with a specific process, not a ready-made list of modules. We define who enters the data, who checks it, who approves the operation and what must remain as a verifiable record.

• Customers and counterparties, registration, profiles, segments, related parties, contact details and statuses.
• Financial products, loans, deposits, accounts, fees, interest rates, limits, repayment schedules and change rules.
• Payments and transactions, incoming and outgoing operations, instructions, transaction status, fees, reconciliation and notifications.
• Documents, applications, contracts, appendices, certificates and correspondence with version, deadline and responsible employee.
• Checks, checklists, rule-based checks, manual confirmation, escalation and blocking in the event of a discrepancy.
• Reports, operational reports, overdue items, volumes, transactions, team workload and exports to accounting or a regulatory format according to your requirements.

How is custom banking software designed?

First, we break the process down into states and rules. For example, an application can be a draft, sent for review, returned for correction, approved or rejected. For each state, we define access rights, required fields, available actions and notifications.

Next, we define the boundaries between modules. The customer profile can be used by customer service, the lending department and accounting, but each team sees only the data and actions it needs. This prevents the system from turning a shared database into an unmanageable collection of tables.

1. 01
   Workshop and scope

   We gather the processes, roles, types of operations, documents, reports and systems the solution needs to connect to. At this stage, we separate must-haves from ideas for a later phase.

2. 02
   Data model and prototype

   We describe the customers, products, contracts, transactions and documents. We prepare screens and scenarios for the key roles so the process can be reviewed before development begins.

3. 03
   Core development and integrations

   We build the web system, API connections, imports and exports, notifications and required automated checks. Each module is tested against the approved process.

4. 04
   Testing with real-world scenarios

   Your team tests operations end to end: a new customer, a data change, a payment, a document, an exception and a report. Fixes are documented and prioritized instead of being passed on verbally.

5. 05
   Implementation and growth

   We prepare permissions, initial data, training and a rollout plan. After launch, the system can be expanded with new products, checks, roles and channels.

How does it connect to banking and accounting systems?

Integration depends on the capabilities and rules of the specific provider. We can work with APIs, secure file exchange, importing and exporting structured files, webhooks or a middleware layer that transforms data between systems.

The typical flow is: the operation is created in the core system, receives a status from the payment or banking provider, is recorded in the audit trail and sent to accounting. Before development begins, we clarify formats, exchange frequency, resending, errors and who is authorized to confirm discrepancies. For individual connections to external platforms, see our API integrations service.

How are roles, auditing and data protection ensured?

Permissions are designed around the employee's position and the specific action, not just access to a menu. There can be separate roles for customer service, lending officers, reviewers, approvers, accountants, administrators and auditors, including a separation between creating and approving an operation.

The audit trail records who performed the action, when, on which record and what was changed. Where needed, we can add a mandatory reason for editing, document versioning, status history and a log of exported data.

Security is defined according to the institution's infrastructure and internal policies. The scope may include encrypted connections, session controls, multi-factor authentication, role-based restrictions, backups, logs and separate development, testing and production environments. The project must also undergo your legal, information security and regulatory review.

What do you get as a result?

The ranges shown are based on our quotes for ERP, CRM, and custom software. For a specific project, the price depends on the number of roles and modules, the complexity of the rules, integrations, migration, audit requirements, and the required infrastructure. Once the scope is defined, you receive a quote with separate stages and deliverables; the service is part of custom software development.

What experience can you review?

For financial processes, a useful reference is Account-X, ERP for accounting firms, which covers customers and contracts, document management, bank reconciliations, deadlines, and a customer portal. For a platform handling Bulgarian lev payments, you can also review Crypto.bg, cryptocurrency platform. These projects are not banking products; they demonstrate specific approaches to financial operations, documents, access, and integrations.

Frequently asked questions

Can the system be integrated with banking software already in use?

Yes, if the existing system provides an API, file exchange, or another supported integration method. Before preparing a quote, we review the documentation, limitations, test environment, and error-handling rules.

Can customers and old documents be migrated?

Yes, after analysing the source and data quality. We determine which fields, files, statuses, and histories will be transferred, how the results will be verified, and when the final switchover will take place.

How long does banking software development take?

The timeline depends on the scope, integrations, migration, and the time required for checks by the institution. We provide a phased plan after a working meeting and do not include unconfirmed external dependencies such as API access or supplier approval.

Can each role see different data?

Yes. Permissions can be assigned by role, action, team, product, or organisational structure, while sensitive actions can require second approval and be recorded in the audit trail.

How does discussing such a project begin?

Send a brief description of the processes, systems, roles, and desired integration. The most useful materials are a sample document, a diagram of the current workflow, and a description of an operation that is currently performed manually.

How can we discuss your project?

Send an enquiry through our contact form with information about the institution, the core process, the systems in use, and the desired timeline. We will come back with questions about the scope and the next steps for preparing a quote.