Belitsoft. Software Development Company
Belitsoft > Reliable Financial Software Development Company

Reliable Financial Software Development Company

Belitsoft builds financial web and mobile software solutions for US, UK, and EU clients to boost their FinTech business growth. Hire financial product software engineers from Belitsoft to create new applications from scratch, modify existing software, and assemble dedicated teams for insurance companies, investment enterprises, banks, and startups. Belitsoft's financial software development follows industry standards and regulations, including GDPR, OWASP, and PCI DSS.

For more than 20 consecutive years, Belitsoft has successfully delivered custom financial software development, integration, modernization, support through full-cycle outsourcing and staff augmentation for 3 types of business customers:

3 types of our business customers

1Financial Institutions

Mid-market and enterprise banks, insurers, and other financial services companies that need professional engineering help with their core, business-critical platforms and applications, or with complex internal and external integrations.

Banks Credit unions Lenders Brokers and broker-dealers Investment banks and capital markets firms Hedge funds and trading firms Trust companies Insurers and TPAs Wealth/asset managers Fund administrators + other financial institutions

2FinTech/InsurTech Product Companies

B2B/B2C product vendors that need outstanding expertise and specialized engineering experience to help with their in-house SaaS (web/desktop), or embedded finance solutions.

3Consulting Firms

Consultancies that need white-label, cost-effective and high-quality engineering services from a strategic long-term subcontracting partner with experience in both technology and the financial domain, plus a legal US presence.

For our clients, we build and modernize financial software of every kind, including:

Core systems

Core banking systems Policy administration systems + more core platforms

Financial SaaS, embedded & desktop software

Digital banking Payments and billing Lending and loan servicing Payroll Accounting and financial close Tax and compliance Risk, portfolio, and wealth management Trading and investment Underwriting Policy administration Claims Benefits Fraud prevention and identity verification Treasury and digital assets Reporting + many more

Integrations

Vendor platforms Custodians SSO Market data feeds ACH / payment processing Carrier APIs + more integrations

Application Modernization for Financial Services, Banking and Insurance

Non-Technical Business Owners & Other Stakeholders

prefer full-cycle modernization project outsourcing with Belitsoft because, under the management of our technical leads, they can transfer technological ownership to us and get guaranteed high-quality delivery and visible business results at cost-effective rates.

Heads of Technical Departments

choose Belitsoft as their strategic application modernization partner capable of high-volume IT staffing for their enterprise modernization projects over other software modernization companies offering just staff augmentation.

Belitsoft's Clients

  • work within highly regulated legal and financial environments
  • invest to expand the capabilities of their critical applications, large-scale financial services, and financial management platforms
  • have undergoing (sometimes multi-year) digital transformation initiatives and projects.

Belitsoft Helps Clients

  • develop, architect, design, enhance, maintain, and modernize their financial systems
  • automate highly manual processes
  • support continuous improvement while meeting evolving business and financial system requirements
  • reduce time to market
  • achieve reliability and long-term business value

Belitsoft's Developers

  • can work in modernization-focused roles
  • have deep expertise in both legacy and contemporary technology stacks
  • are comfortable digging into older code.

Senior full-stack engineers from Belitsoft are equally experienced in:

  • working with legacy code (fixing defects and supporting legacy applications hands-on)
  • building new cloud-native features.

They know when to ship as-is, stabilize, migrate, refactor, rebuild, or buy and their technical judgment is based on proven technical and business arguments.

We also have senior architects who can:

  • assess your current environment and system viability,
  • define a modernization roadmap,
  • recommend long-term modernization paths toward a modern tech stack including database architecture, messaging, DevOps pipelines, and cloud infrastructure
Cloud Migration for Financial Services, Banking and Insurance

Our skilled modernization lead and senior engineers will turn your applications and platforms into cloud-ready solutions: secure, scalable, fast, resilient, observable, and testable. During cloud migration, your platform stays stable for your customers: Belitsoft keeps your product live and prevents disruption to business operations, while making your technology foundation stronger.

Migrating product applications from on-premise to cloud (public and private)
Migrating legacy applications to cloud-native architectures
Legacy application rehosting, re-platforming: architecture and execution
Integrating legacy framework-based systems with modern cloud-based architectures

Application Modernization Case Studies for Financial Services, Banking and Insurance

1
Before
Desktop-only software installed on every machine
20 years of data history
→
After
Browser-based access any device, no install
All data fully preserved
Modern, maintainable platform
Industry: Pharmacy billing (financial)Client: Independent software vendor$300M in transactions per year
2
Before
One all-in-one reporting tool slow, hard to scale
→
After
Dedicated data pipeline
Central data warehouse
Fast analytics layer
Self-service reporting
Industry: Banking — BI & analyticsClient: Large bank, $300B in assets
3
Before
One large system scaled poorly, slow to change
→
After
Policy, billing & claims as independent services
Each part scales on its own
Faster, safer releases
Industry: Insurance (InsurTech)Client: SaaS platform — engaged as subcontractor
4
Before
Cloud-hosted reporting data leaves the bank
Existing databases kept in place carried over, no migration
→
After
Fully on-premises data stays in-house
Central data warehouse
Fast analytics layer
Self-service reporting
Industry: BankingClient: Regulated bank — data-sovereignty mandate

What These Cases Have in Common

The shared modernization principles behind all four engagements.

  • Incremental, module-by-module
  • No big-bang rewrite
  • Independent scaling
  • Modular & maintainable
  • Automated testing & CI
  • 100× faster analysis
  • Regulatory compliance
  • Data sovereignty

Custom Software Architecture Consulting and Design Services for Finance, Banking, and Insurance

Architecture for core banking platforms and systems, including modern core banking, and for core insurance systems.
Architecture for digital banking platforms, omnichannel banking, mobile banking apps, online banking, and digital insurance.
Architecture for payment processing systems, banking transaction systems, insurance payment platforms, and insurance claims processing with workflow automation.
CRM architecture covering components, workflow, and data flow.
Architecture for trading systems, investment banking systems, and financial ledgers.
Architecture for financial data platforms: data lakes, data warehouses, big data and analytics, and data marketplaces; data pipelines, ingestion, and aggregation; market data streaming and real-time data processing.
Architecture for financial data APIs, banking APIs and API gateways, core banking and insurance integration, and system integration; microservices and event-driven architecture with event streaming.
Zero trust and security architecture for banking networks, mobile banking apps, online banking, insurance systems, and financial SaaS; fraud detection systems, including insurance claims fraud.
Cloud and network architecture: cloud native and hybrid cloud solutions, based on AWS and Azure reference architectures.
Architecture for AI-native and agentic banking platforms, AI compliance systems, insurance LLM solutions, and scalable AI claims processing.

End-to-End Test Automation for Financial Services, Banking, and Insurance

Belitsoft engineers test financial software before release: business logic, integrations, data flows, and workflows. After migration, they re-validate them. Where disaster recovery is in scope, they plan and test the procedures. The results are on-time, high-quality software releases and a reliable, maintainable, well-tested, production-ready codebase.

Belitsoft provides test automation services for the financial systems your company builds, maintains, or operates:

Legacy desktop applications (thick-client applications) Domain-specific applications such as billing software Backend services Databases and data layers Web applications

Depending on your needs, we automate the following test types:

Unit Functional API Integration UI / browser Regression Performance Static code checks End-to-end Stable, repeatable UAT scenarios

We also automate testing of LLM-based systems:

Prompts Pipelines Agent orchestration logic LLM workflows AI-generated outputs, including code

Belitsoft engineers work inside your existing QA, UAT, and release process, using your test plans, defect tracking flow, and verification rules.

Our full-stack developers write automated tests concurrently with code development. They:

  • cover the code with tests before merging
  • add metrics and event reporting to the backend
  • deploy
  • and then monitor to catch regressions.

We can provide dedicated SDETs to build and maintain the test automation stack:

  • test frameworks
  • CI/CD test infrastructure
  • test automation code
  • test data management for repeatable automated testing

They add automated checks to CI/CD pipelines used to build, test, and deploy software packages.

End-to-End Test Automation Case Studies for Financial Services, Banking and Insurance

1
Test Automation Partner for an InsurTech SaaS Platform

The head of product at a mid-stage company needed a leading automated testing company for insurance that provides end-to-end continuous testing in the weekly release process to accelerate their SaaS product testing. They expected comprehensive coverage of critical workflows with functional, regression, and compliance testing within the scope of web and API test automation. The requirements included insurance domain knowledge for testers. Belitsoft was selected from among software testing companies with InsurTech experience because we offer the best value for money.

Custom Financial & Banking Software

Billing & Payment Solutions

Tools to automate billing and payment processing, handle real-time charges, manage invoices, estimate detailed transaction statistics and reporting, send payment reminders, and store custom-made payment terms.

Insurance Broker Software

Software solutions for insurance intermediaries - agents and brokers, to allow them to manage their policies and customers. We create cloud-based SaaS platforms that streamline the sales process and simplify administrative and reporting tasks.

Financial Analytics

Web services for technical analysis of the stock markets with the function of real-time online stock exchange simulator. We can configure scalable data repositories, use AI algorithms to compile and analyze a wealth of financial information obtained from different sources.

Healthcare Financial Management

Insurance finance and billing systems for healthcare institutions and insurance companies of a different size. We can integrate custom EHR/EMR systems with claims management solutions, payment processing software, etc.

Personal Finance

FinTech solutions to manage and systematize personal budget, track spending habits, record and categorize expenses, outline financial goals, and receive notifications and alerts.

Electronic Document Management

Systems for optimizing and storing different kinds of documents including digital scanned versions of original paper forms. We can update a custom financial software solution to automatically compile a file and create a base of clients who must receive notifications from the company.

Features for FinTech Solutions

Accounting

Payroll management
Taxes processing
Budgeting & Forecasting

Insurance Management

Built-in insurance metrics
Renewal and lapse calculations
Claims activity monitoring

Cryptocurrency transactions

Blockchain platforms integrations
Сryptocurrency exchange
Сryptocurrency wallets

Billing

Credit card processing
Payment scheduling
International remittance
Credits
Deposits

Mobile Payments

Internet banking
Mobile wallets
Contactless payments
QR code payments
Biometrics

Other features

Multi-currencies support
Payment reminders
Advanced reporting & analytics
Charge calculation
Country-specific guidelines

Belitsoft focuses on secure FinTech software development

We deal with the latest security tools and equipment to address potential vulnerabilities related to the privacy of personal data and financial information.

  • HYBRID CLOUD STORAGE
  • IDENTITY AND ACCESS MANAGEMENT
  • PENETRATION TESTING

Integrations

Third-party Payment Gateways

We deploy available APIs or use custom-made connectors to link financial software solutions with the frequently used payment gateways including PayPal, Stripe, Amazon Payments, etc.

CRM / ERP Systems

Belitsoft will build your FinTech solution and CRM / ERP systems to function together seamlessly. Instead of manually entering customer or business processes information, your software will bring valuable data directly into your CRM or ERP and hence create detailed documentation in the shortest terms.


Specialized Data Sources

Our team can combine and visualize real-time market data from specific sources including Bloomberg, Reuters, and numerous national banks.

How We Develop Financial Software

We start from comprehensive business analysis in financial software development, bringing in expertise from our BI consultant for Fintech, to plan your budget and product delivery, prioritize development efforts that yield maximum benefits to your business, promptly identify risks, and implement effective risk mitigation strategies.

Practice Code Reviews
In order to increase the general code quality, two experienced developers or a team lead check and approve a piece of code of a certain programmer.
Use Microservices Architecture
We speed up coding & testing processes and simplify creation of functionality documentation by splitting up a monolithic application into microservices.
Provide Continuous Support
Belitsoft provides enhanced 20/7 support for clients who need special attention and constant updates.

Our pricing models include traditional fixed price, dedicated teams, Time&Material and any of their possible combinations. We develop using the principles of Agile methodology, Waterfall, RUP, and Iterative.

Portfolio

Professional Services Automation Software to Increase Resources Utilization and Projects Profitability
Professional Services Automation Software to Increase Resources Utilization and Projects Profitability
Belitsoft developed a comprehensive Professional Services Automation (PSA) software. It offers stakeholders centralized access to near real-time analytics and reporting by integrating data from project management tools (such as ClickUp and Jira), accounting, sales, and HR systems.
BI Modernization for Financial Enterprise for 100x Faster Big Data Analysis
FinTech BI Modernization for 100x Faster Big Data Analysis
A private financial enterprise needed to fully modernize the architecture of a custom Business Intelligence system to effectively identify trends, mitigate risks, enhance customer experience, and optimize operations.
Custom Insurance Medical Case Management System Development
Custom Insurance Medical Case Management System Development
Our client is a healthcare consulting company from the USA focused on helping insurance companies from Europe to adjust their claims.
Mobile Banking App Development & Customization
Mobile Banking App Development & Customization
Mobile banking usage is increasing, while the popularity of branch banking is decreasing. Our client wanted our team to develop a mobile banking service that allows their customers to make financial transactions remotely using a smartphone or tablet. They set ambitious goals to lower servicing costs, improve customer satisfaction, enhance service accessibility, facilitate client outreach, sell more to existing clients, and attract small businesses.
Custom Investment Management and Copy Trading Software with a CRM for a Broker Company
Custom Investment Management Software for a Broker Company
For our client, we developed a custom financial platform whose unique technical features were highly rated by analysts at Investing.co.uk, compared to other forex brokers.
Migration from Power BI service to Power BI Report Server
Migration from Power BI service to Power BI Report Server
Last year, the bank migrated its financial data reporting system from a cloud-based SaaS hosted on Microsoft’s cloud platform to an on-premises Microsoft solution. However, the on-premises Power BI Report Server comes with some critical limitations by default and lacks backward compatibility with its cloud equivalent.

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