Fintech Software Development
Fintech Industry-Specific Solutions
Fintech products carry expectations that most software never faces: money has to move correctly every time, regulators expect a paper trail, and users expect a consumer-grade experience. Here is how we approach the constraints that define financial software.
Security and data protection by default
Financial products hold account data, identity documents, and transaction history that attackers actively target. We build with encryption in transit and at rest, strict role-based access, secrets management, and hardened cloud infrastructure on AWS. Security reviews and dependency checks run as part of the engineering process, not as an afterthought before launch.
Regulatory and audit requirements
Banking, lending, and payments teams have to explain what happened, when, and who approved it. We design immutable audit logs, permission trails, and reporting views into the data model from the start, so compliance evidence is a query rather than a reconstruction project. Consent, disclosures, and record retention are treated as product requirements alongside features.
Transaction accuracy and reconciliation
A payment ledger that drifts is worse than a feature that ships late. We use PostgreSQL with transactional integrity, idempotent operations, and reconciliation jobs so retries and network failures never create duplicate or orphaned transactions. Every money-moving path is covered by automated tests before it reaches production.
Integration with banking and payment infrastructure
Fintech products rarely stand alone — they depend on core banking systems, payment processors, card issuers, KYC and AML vendors, and market data feeds. We build resilient integration layers with retry logic, queuing, sandbox-to-production parity, and clear failure handling. When a third party degrades, your product stays usable instead of going dark.
Onboarding and KYC without user drop-off
Identity verification is where most financial products lose customers. Our UX/UI designers structure onboarding into progressive steps with clear status feedback, document capture that works on mobile, and recovery paths for failed or manual-review cases. The goal is a flow that satisfies compliance and still feels like a modern consumer app.
Legacy systems and modernization
Established banks and financial services firms often run critical logic on aging platforms that cannot be replaced overnight. We wrap legacy systems with APIs, containerize services with Docker and Kubernetes, and migrate functionality in stages so operations continue uninterrupted. Modernization is delivered increment by increment, with rollback available at every step.
Solutions We Build
We design and build fintech products end to end, from customer-facing apps to the back-office systems that keep them running. Each engagement is scoped around your regulatory environment, integrations, and growth plans.
Digital banking and neobank platforms
Web and mobile banking experiences built on React, React Native, Node.js, or .NET, backed by infrastructure that holds up under real transaction volume. We cover account management, transfers, cards, statements, and admin tooling.
- ›Customer apps: Native-feeling mobile apps with React Native and responsive web dashboards with React, Vue, or Angular.
- ›Core services: Account, ledger, and transaction services on PostgreSQL with transactional guarantees and full audit trails.
- ›Back office: Internal consoles for support, dispute handling, limits, and account review with granular role-based permissions.
The result is a banking product your customers trust and your operations team can actually run.
Payment and money movement systems
We build payment flows that stay correct under retries, timeouts, and partial failures. That includes checkout experiences, disbursements, recurring billing, and multi-party payouts.
- ›Processor integrations: Resilient connections to payment processors and banking rails with idempotency keys, queuing, and webhook handling.
- ›Reconciliation: Automated matching, settlement reporting, and exception queues so finance teams work from a single source of truth.
- ›Failure handling: Clear retry, refund, and chargeback paths with logging that makes every state change traceable.
Money moves predictably, and every movement is explainable after the fact.
Crypto trading and DeFi platforms
We have delivered cryptocurrency trading platforms and work regularly across crypto and DeFi. These products demand low-latency data, careful key and custody handling, and interfaces that stay readable during volatility.
- ›Trading interfaces: Real-time order books, charting, portfolio views, and order management built with React and streaming data.
- ›Wallet and custody flows: Deposit, withdrawal, and address management flows with layered approvals and strict secret handling.
- ›On-chain and off-chain data: Services that combine blockchain data with exchange and market feeds into a consistent, queryable model.
You get a trading product that stays responsive and legible when markets move fast.
AI and machine learning for financial products
Using Python with TensorFlow and PyTorch, we build models and AI features that fit inside regulated workflows. We have delivered AI chatbots and enterprise voice platforms that can be adapted to financial support and servicing use cases.
- ›Risk and fraud signals: Models that score transactions, applications, and account behavior, with human review built into the loop.
- ›Conversational support: AI chatbots and voice assistants for balance inquiries, servicing questions, and routing, with escalation to human agents.
- ›Document intelligence: Automated extraction and classification for statements, identity documents, and loan paperwork.
AI is applied where it reduces manual review time without removing accountability.
Lending, onboarding, and compliance tooling
We build the systems that decide, document, and defend financial decisions. That spans loan origination, KYC and AML workflows, and the reporting layer regulators and auditors ask for.
- ›Origination workflows: Application intake, document collection, decisioning rules, and underwriter consoles with full status visibility.
- ›KYC and AML operations: Vendor integrations, case queues, manual review screens, and configurable rules for screening and monitoring.
- ›Audit and reporting: Immutable event logs, exportable reports, and access records built into the data layer from day one.
Compliance work stops being a scramble and becomes a routine part of the platform.
Technologies We Use
We use proven, industry-leading technologies across every layer of development. Our team is experienced in everything from JavaScript and Python to cloud platforms and containerization — so we can pick the best tools for your specific product, not just the most popular ones.
Fintech Development Workflow
Planning & Analysis
We map your financial product's regulatory environment, integration surface, and money flows before writing code. Discovery produces a scoped roadmap covering data models, third-party dependencies, and the security requirements that will shape the architecture.




Design
Our UX/UI designers build onboarding, KYC, transaction, and dashboard flows that keep users moving while satisfying disclosure and verification requirements. Prototypes are tested against real edge cases such as failed verification, declined payments, and manual review.




Development
Engineers build customer apps with React, React Native, Vue, or Angular and services with Node.js, .NET, or Python, backed by PostgreSQL and MongoDB. Money-moving logic is written with idempotency, transactional integrity, and audit logging as non-negotiable requirements.




Testing & QA
QA covers functional flows, integration behavior with processors and KYC vendors, and failure scenarios like timeouts, duplicate submissions, and partial settlements. Security testing and reconciliation checks run before anything touches production.




Deployment
We release to hardened AWS environments using Docker and Kubernetes, with staged rollouts, encrypted secrets, and rollback ready at every step. Sandbox-to-production parity is verified so integration behavior matches what was tested.




Maintenance & Support
We monitor transaction success rates, integration health, and error patterns, and respond to incidents that affect money movement or customer access. Ongoing work includes dependency patching, vendor API changes, and updates driven by new regulatory requirements.




Scaling
As transaction volume, user counts, and product lines grow, we scale services on Kubernetes, tune database performance, and split monoliths into services where it pays off. New markets, new rails, and new asset classes are added without rebuilding the core.




How We Get Started Together
Tell Us
Share your fintech product idea or existing platform, along with your target users, regulatory context, and the banking, payment, or data providers you need to integrate with.
Get Your Estimate
We come back with scope, timeline, and cost, including the effort required for compliance-driven work such as KYC flows, audit logging, and security hardening.
Pick Your Cooperation Model
Choose a dedicated team, project-based delivery, or extension of your in-house engineering group, depending on how your fintech roadmap and internal capacity are structured.
We Start Building
Discovery, design, and engineering begin in short cycles, with working builds you can review and validate against your compliance and operations stakeholders.
Launch
We deploy to production on AWS, monitor transaction and integration health from day one, and stay on for support, maintenance, and the next stage of your fintech roadmap.
Our Portfolio


Investment Trading Platform
A cutting-edge investment trading platform for a leading investment bank. The client wanted a user-friendly solution to help them make better investment decisions and execute trades efficiently. We have offered and developed a platform that provides real-time market data, advanced analytics tools, and a secure trading environment. It integrates with third-party...


Credit Web Application
Modern Credit Web App (PWA) for CredifyNow. The client needed a comprehensive solution for optimizing and automating lending processes. We designed and developed a platform that automates parts of the loan process, services and internal credit tracking, and provides a user-friendly web portal for users to submit loan orders and applications.


Retail Banking Platform
Intuitive mobile app and web portal for financial needs. Our client (FinTech startup) wanted a modern, digital banking solution to attract customers and prepare for the future. We created an innovative Retail Banking Platform to improve their customer experience. Using the latest technology in AI, security, and automation, our platform makes banking easy and convenient...


Cryptocurrency Trading Platform
The COINER project includes a cryptocurrency trading platform, user dashboard, admin panel, and corporate website. It offers tools for real-time market tracking, trading, rewards, and secure deposits and withdrawals. Integrations with DxTrade, HubSpot, and Stripe ensure smooth operation, while the admin panel provides...
Explore Our Full Project Portfolio
Explore a selection of real-world products we've designed and built across multiple industries and platforms.
Our Clients Say
Genius Software developed a healthcare platform for a smart solutions and innovative products firm. The team created a secure platform for booking and managing appointments with patient and doctor dashboards. Genius Software’s work resulted in a 60% reduction in average booking time, a 4.9/5 user satisfaction score, and expansion to two new markets. The team was proactive, detail-oriented, and made effective UX decisions. They worked in sprints, kept the client updated, and solved problems quickly.


Iryna Stakhiv
Review from
Spain
5.0
Thanks to Genius Software’s work, the client achieved a 50% reduction in loan processing time, and the platform processed over 70% of loan requests. The team was transparent, responsive, and quick to adjust to changes. Genius Software’s expertise and ability to solve business problems stood out.
Michael Carter
Review from
Estonia
5.0
Working with Genius Software has been a great experience for our team at Artemis. ʼThey really stand out because of their professional approach and deep technical knowledge.
Communication was always clear and timely, which made the whole development process feel straightforward and predictable. They delivered exactly what we needed, earning a well-deserved 5.0 rating. I’d definitely recommend them to anyone looking for a reliable, expert development partner.
Attila P.
Review from
Hungary
5.0
I’ve seen many partnerships, but Genius stood out. They fit right into our workflows, were responsive, and offered smart suggestions. Their balance of technical expertise with usability and compliance impressed us. The platform is now fast, secure, and delivering real value – this felt like a partnership, not outsourcing.


Alina
Review from
Estonia
5.0
We very enjoyed working with Genius team on our web-app project and they helped our team to deliver this project within the deadline. All new features were delivered as planned using clear communication, they also helped with the solution architecture improvements so we highly recommend this team and will be happy to work again, thanks guys!
Elliot Baker
Review from
United States
5.0
Genius Software delivered a stable, fast, and secure platform on time, with zero major bugs at launch and 99.9% uptime. The team led a smooth and transparent process, conducting sprints and demos and responding quickly to all requests. They were also proactive and handled all changes well.


Tetiana Bykova
Review from
Cyprus
5.0
Genius Software developed the backend and mobile features of a fitness app. The team built the app’s architecture, including the workout and nutrition program modules and progress tracking system. Genius Software delivered a stable and personalized app, resulting in positive user feedback and exceeding adoption projections. The team executed a clear and straightforward process, ensuring a smooth launch.


Andrii Kovalenko
Review from
England
5.0
Excellent work! Your attention to detail, thorough testing, and clear documentation were top-notch. I appreciate your proactive communication, timely delivery, and professionalism throughout the project. Looking forward to working with you again in the future!


Chris Workum
Review from
Netherlands
5.0
Working with the Genius team was a game-changer for our complex Java project! They delivered every feature on time, kept communication crystal clear, and even elevated our solution architecture. Highly recommended — we’d gladly team up again!


Viktoria
Review from
United States
5.0
I’ve had a great experience working with Genius Software on our Identity Governance and Administration SaaS platform. Building enterprise-level security software is never easy, but their team handled the complexity with total professionalism.
The technical expertise they brought to the table was obvious from day one. They didn’t just follow instructions; they really dug into the architecture to ensure the platform was both scalable and secure.


Patrick P.
Review from
USA
5.0
Genius team is great, super proactive, very on top of the tasks and what is required, communicating with multiple people and navigating what was new to her fast. Proposing also improvements for the team and helping to drive some.
Ryan G.
Review from
USA
5.0
Genius Software developed and deployed an AI chatbot for a mobile solutions company. The team created a self-learning, multilingual system with a microservices-based architecture and live response accuracy. After launching the chatbot, the client experienced a 70% reduction in repetitive expert inquiries, over 90% response accuracy across five languages, and 100% user adoption within the first month.


Kate Zashalovska
Review from
Ukraine
5.0
Genius Software has delivered a high-quality product that has reduced manual transaction review time by four times, fraud detection, and financial losses from fraudulent operations. The team follows an Agile methodology, adapts well to shifting priorities, and integrates seamlessly with the client.


Olexandr
Review from
Estonia
5.0
Genius Software built a blockchain based platform for managing on chain operations and user interactions for our mutual client. The platform served as a single environment where users could connect wallets, interact with smart contracts, and track transaction activity in real time. They get things done fast and with minimal fuss. The product just works.


Anastasiia Cherednichenko
Review from
Ukraine
5.0
It was a pleasure working with the Genius Software team on our embedded platform development project. The team is incredibly organized and made the entire development process feel seamless. The technical execution was spot on, and their ability to manage the project’s moving parts ensured we stayed on schedule without any major hiccups. We were happy to provide a 5.0 rating for the quality of work delivered. I highly recommend the team for anyone needing a reliable, sharp project manager for technical builds.
Jordi B.
Review from
United Kingdom
5.0
Genius Software developed and designed a blockchain platform for an IT company. Genius Software delivered a reliable platform that was adopted shortly after release. The team provided clear structure, quick turnaround, and full visibility into all blockchain activity. Moreover, Genius Software communicated effectively through virtual meetings, emails, and messages.


Alexey Cherevuta
Review from
Ukraine
5.0
Genius Software developed a cloud-based hospitality platform for a software development company. They built the infrastructure, integrated multiple systems, and created user-facing apps. The platform was launched on time and successfully enabled the client to onboard over 1,000 properties while remaining stable under heavy booking traffic. The team consistently met deadlines and impressed the client with their open communication, reliability, and high-quality work.


Khrystyna Gorodnyk
Review from
Estonia
5.0
We enjoyed working with Genius team on our solution architecture technical audit and code review, he helped our team to identify technical design issues and improve it, also suggested cool engineering AI tools for our dev team, so we highly recommend him and will be happy to work again.


Oleksii Myrnyi
Review from
Estonia
5.0
Great help with our business analysis projects and some advice as well.


Caroline B.
Review from
Denmark
5.0
Genius Software delivered a production-ready platform with secure and scalable infrastructure. The client adopted the platform quickly, and property listings and ad management became much faster. The team had clear deadlines and solid deliveries.


Iryna Seleman
Review from
Estonia
5.0
Genius Software designed and developed an AI-based mobile app for a software development company. The app had an OCR system that extracted data, auto-filled forms, and integrated with compliance systems. Genius Software delivered an impressive product with an OCR accuracy above 95%, a 40% reduction in inspection time, and 90% fewer manual errors in compliance reports.


Viacheslav K.
Review from
Saudi Arabia
5.0
I really enjoyed working with the Genius Software team on our recent project. They are an exceptional team that is consistently positive, friendly, and efficient.
Beyond their technical skills, they genuinely promote a great working environment, which makes the whole process much smoother. I highly recommend them for any team looking for professionals who can keep things organized while maintaining high morale.


Erik Saar
Review from
Estonia
5.0
The Genius QA Automation team did a fantastic job on our project. They were incredibly helpful throughout the process, providing high-quality testing that gave us a lot of confidence in our product. It’s clear they know their way around automation, and they were quick to adapt to our specific testing needs. I’d be happy to keep working with them on future QA and testing tasks. They definitely earned their 5.0 rating. If you need a team that’s efficient and easy to collaborate with, I highly recommend them.
Emma Johansson
Review from
Estonia
5.0
Genius Software delivered a production-ready platform with secure and scalable infrastructure. The client adopted the platform quickly, and property listings and ad management became much faster. The team had clear deadlines and solid deliveries.


Vladislav Komovich
Review from
Ukraine
5.0
We chose Genius Software because they truly understood our business needs. We needed a reliable software partner with skilled engineers, efficient management, and zero downtime — and that’s exactly what they delivered. Their flexibility, transparency, and innovative approach continue to add great value to our collaboration.


Jeroen Megchelen
Review from
Netherlands
5.0
The system has produced a significant competitive advantage in the industry thanks to Genius Software well-thought opinions. They shouldered the burden of constantly updating a project management tool with a high level of detail and were committed to producing the best possible solution


Martin Goutry
Review from
United Kingdom
5.0
We were looking for a trusted technology partner with strong expertise, solid management, and fair pricing. Sergey and the Genius Software team impressed us with their technical knowledge, business understanding, and communication. They built a skilled engineering team, implemented a mature Scrum process, and delivered a high-load web, mobile, and API solution on time and within budget.


Matas Jakutes
Review from
USA
5.0
Sergey and his team helped us rebuild our web platform from a legacy system to a modern, high-load technology stack. They established a mature project management process, designed and developed scalable architecture, and delivered the solution within our budget and timeline. Their dedication and transparency ensured full visibility at every stage of the project.


Anders Filipsen
Review from
Denmark
5.0
Frequently asked questions
Yes. We design audit logging, role-based access control, consent capture, and reporting into the data model from the start, so compliance evidence can be produced on demand rather than reconstructed later. We work with your compliance and legal stakeholders during discovery to translate their requirements into concrete engineering work.
We apply encryption in transit and at rest, strict access controls, managed secrets, and hardened AWS infrastructure with containerized deployments on Docker and Kubernetes. Security reviews, dependency checks, and testing of authentication and authorization paths are part of the delivery process, not a final-week task.
Yes. We build integration layers with retry logic, queuing, idempotency, and webhook handling so third-party outages or slowdowns do not break your product. We validate behavior in sandbox environments and verify parity before going live.
We do. Our delivered work includes cryptocurrency trading platforms alongside fintech and banking applications, so we are comfortable with real-time market data, wallet and custody flows, and interfaces that combine on-chain and off-chain data.
Yes. We typically wrap legacy systems with APIs, containerize services, and migrate functionality in stages so operations continue running throughout. Each increment is reversible, which keeps risk contained during the transition.
We build with Python, TensorFlow, and PyTorch for use cases such as transaction and application risk scoring, document extraction, and conversational support, drawing on our experience delivering AI chatbots and enterprise voice platforms. AI features are designed with human review and clear logging so decisions remain explainable and accountable.


Meet us in Estonia
Sergey Lvov
Chief Executive Officer
Address
Talinn, Kesklinna Linnaosa,
Kaupmehe tn 7/120, 10114


Meet us in Poland
Sergey Lvov
Chief Executive Officer
Address
Warsawa, Krakowskie
Przedmieschie 13, 00-071


Meet us in USA
Sergey Lvov
Chief Executive Officer
Address
USA, Tampa, FL 33602, 501 E
Kennedy Blvd #1400


Meet us in Ukraine
Veronika Marchenko
Business Development
Address
Ukraine, Kyiv,
Yaroslaviv Val 15, 01001
Contact Us
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