Custom Financial Software Development Services
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:
1Financial Institutions
Belitsoft offers professional engineering help with core, business-critical platforms and applications, or with complex internal and external integrations for financial services companies
2FinTech/InsurTech Product Companies
Belitsoft provides outstanding expertise and specialized engineering experience to help with in-house SaaS (web/desktop), or embedded finance solutions for B2B/B2C product vendors
3Consulting Firms
Belitsoft also serves consultancies as a strategic long-term subcontracting partner, delivering white-label, cost-effective, high-quality engineering services backed by expertise in both technology and finance and a legal presence in the US.
Core systems
Financial SaaS, embedded & desktop software
Integrations
Application Modernization for Financial Services, Banking and Insurance
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; and achieve reliability and long-term business value.
1Belitsoft'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 that have evolved over many years, and have undergoing (sometimes multi-year) digital transformation initiatives and projects.
2Non-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.
3Heads 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 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
- work with legacy code (fixing defects and supporting legacy applications hands-on)
- build new cloud-native features
- know when to ship as-is, stabilize, migrate, refactor, rebuild, or buy and their technical judgment is based on proven technical and business arguments.
Senior Architects
- 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
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.
In response to regulatory changes, client requests, or expansion goals for your financial product, our enterprise architects can design either complete, high-performance, compliant, cloud-native solutions or just new modules or standalone features and implement them based on architecture diagrams and design documents. They'll identify and address any design gaps in your prototypes and proofs of concept before scaling to production. You'll understand the economics and total cost of ownership associated with current or future architecture decisions, as well as any architecture risks. With Belitsoft, you get a wide range of architecture skills, from designing scalable database schemas to deploying local AI models and building RAG pipelines or agentic AI workflows that integrate with your existing tech stack.
Application Modernization Case Studies for Financial Services, Banking and Insurance
The client had significant technical debt and needed an outsourcing partner to help rebuild their legacy platform, modernize older codebases and maintain stability. They needed engineers from a software outsourcing company experienced with enterprise modernization projects.
The client was looking for an IT services company with data modernization services, experience with legacy system modernization and cloud infrastructure, offering cloud data warehouse migration and outsourced ETL modernization. Our software outsourcing company, which specializes in legacy modernization, was the best fit.
The client, a mid-market company, planned a full modernization and was looking for an outsourced software maintenance partner who could also modernize their legacy applications. Belitsoft was chosen as a provider recognized for outstanding customer service in legacy modernization in the United States.
The client needed to modernize their legacy system and migrate to the cloud. They wanted to hire a software development team for their cloud migration project that would work under the management of an outsourcing firm that specializes in both legacy modernization and cloud migration for financial services companies.
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
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.
1Financial systems we test
Belitsoft provides test automation services for the financial systems your company builds, maintains, or operates:
2LLM-based systems
We also automate testing of LLM-based systems:
3Test types we automate
Depending on your needs, we automate the following test types:
Belitsoft engineers
- can work inside your existing QA, UAT, and release process
- and use your test plans, defect tracking flow, and verification rules
Full-stack developers
- write automated tests concurrently with code development
- cover the code with tests before merging
- add metrics and event reporting to the backend
- deploy
- and then monitor to catch regressions.
Dedicated SDETs
- can build and maintain the test automation stack: test frameworks, CI/CD test infrastructure, test automation code, test data management for repeatable automated testing
- and 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
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.
Application Maintenance, Support, and Evolution for Financial Services, Banking, and Insurance
To reduce your in-house engineering effort and costs, Belitsoft takes ownership of the ongoing maintenance and production support of your infrastructure, financial applications that process sensitive transactions under strict uptime, high-availability, and accuracy requirements, or any customer-facing systems your financial business depends on.
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
Insurance Management
Cryptocurrency transactions
Billing
Mobile Payments
Other features
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.
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.
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
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Our Clients' Feedback
Belitsoft has been the driving force behind several of our software development projects within the last few years. This company demonstrates high professionalism in their work approach. They have continuously proved to be ready to go the extra mile. We are very happy with Belitsoft, and in a position to strongly recommend them for software development and support as a most reliable and fully transparent partner focused on long term business relationships.
Global Head of Commercial Development L&D at Technicolor
They use their knowledge and skills to program the product, and then completed a series of quality assurance tests. We were working in an agile way with them. Belitsoft performed very well throughout our project. We are definitely looking at Belitsoft as a long-term partner.
Service Delivery Director at Crimson (United Kingdom)
I highly recommend Belitsoft for website design and development. We were up against a tight deadline to launch the project. The work was delivered on time and within budget! I will continue working with Belitsoft as a valued partner for our web development!
Program Administrator at UC Berkeley (United States)
We have worked with Belitsoft team over the past few years on projects involving much customized programming work. They are knowledgeable and are able to complete tasks on schedule, meeting our technical requirements. We would recommend them to anyone who is in need of custom programming work.
Main Partner at Hathway Tech (United States)
Belitsoft company is able to make changes instantly. One of our internal engineers has commented about how clean their code is. Belitsoft seems to know what they're doing, which I appreciate.
Co-Founder at HOWCAST MEDIA (United States)
It was a great pleasure working with Belitsoft software development company. New requirements and adjustments were implemented fast and precisely. We can recommend Belitsoft and are looking forward to start a follow-up project.
Head of Division at Fraunhofer FIT (Germany)
Belitsoft company has been able to provide senior developers with the skills to support back end, native mobile and web applications. We continue today to augment our existing staff with great developers from Belitsoft.
CEO at Apollo Matrix (United States)
Belitsoft company delivered dedicated development team for our products, and technical specialists for our clients' custom development needs. We highly recommend to use this company if you want the same benefits.
Managing Director at Key2Know A/S in 2012 (Denmark)
We approached BelITsoft with a concept, and they were able to convert it into a multi-platform software solution. Their team members are skilled, agile and attached to their work, all of which paid dividends as our software grew in complexity.
COO at Regenerative Medicine LLC (United States)
Having worked with Belitsoft as a service provider, I must say that I'm very pleased with the company's policy. Belitsoft guarantees first-class service through efficient management, great expertise, and a systematic approach to business. I would strongly recommend Belitsoft's services to anyone wanting to get the right IT products in the right place at the right time.
CEO at Moblers
If you are looking for a true partnership Belitsoft company might be the best choice for you. They have proven to be most reliable, polite and professional. The team managed to adapt to changing requirements and to provide me with best solutions. I strongly recommend Belisoft.
Director at ShowCast Limited (Germany)
I expected and demanded a lot of you at Belitsoft company, but you exceeded my expectations. You acted pro-actively, challenged me at the right moments. Thanks!"
CEO at Ticken B.V. (Netherlands)
We have been working for over 10 years and they have become our long-term technology partner. Any software development, programming, or design needs we have had, Belitsoft company has always been able to handle this for us.
Founder from ZensAI (Microsoft)/ formerly Elearningforce