Fintech software development company custom & AI solutions
Modsen is a fintech software development company that builds custom financial platforms, from AI‑powered fraud detection and digital banking apps to payment systems and DeFi protocols. We serve banks, neobanks, lenders, and wealthtech companies across the USA and EU.
Modsen Fintech software development
14+ years
in fintech software development
360° expertise
banking, payments, lending, wealthtech, DeFi
Compliance
ISO/IEC 27001, GDPR, OWASP
Dedicated team
of senior fintech software developers
AI-ready
delivery of fraud, KYC, credit scoring, RAG
40+
fintech solutions across regulated markets
Financial & banking software engagement options
Three ways Modsen engages on fintech software development: extend your in-house team with senior fintech engineers, deliver full-cycle product builds, or translate business goals into a verified technical roadmap.
Fintech development team scaling
We extend your engineering capacity with experienced fintech engineers skilled in high-load transaction systems, payment gateways, and regulatory compliance. Engineers integrate with your sprints, code review, and security processes immediately: no ramp-up disguised as onboarding. Scale up or down by quarter as your fintech roadmap evolves.
Custom financial software development
Modsen team delivers fintech software development services end-to-end: full ownership of product modules, adherence to PCI DSS and PSD2 standards, fixed-scope contracts, transparent weekly burn reports, and infrastructure monitoring. Your financial data stays in a secure development environment with audit-ready access logs. You get market-ready production fintech software.
Strategic business analysis for fintech projects
Modsen business analysts work with your product, compliance, and engineering leads to build a clear technical roadmap. They identify regulatory constraints, integration risks, and architectural decisions that need to be locked in early. Deliverable: system architecture, functional specification, regulatory mapping, and effort estimates set up for predictable delivery and compliance.
Custom fintech software development services
Modsen delivers custom fintech software development across banking platforms, payment gateways, digital wallets, neobank MVPs, trading platforms, lending systems, and DeFi development services. Modsen offers flexible engagement models: Fixed Price, Time & Materials, or a Dedicated Team.
Custom banking software development Modsen develops secure banking platforms with real-time payments, open API architecture, and mobile-first experiences. Our banking software development modules: core banking, digital banking platforms, online and mobile banking, account management, transaction processing. We build with regulatory alignment in mind. Recent optimization cut settlement time from ~4 hours to 90 seconds. |
Digital banking app development Our banking software development services for iOS and Android ship with biometric authentication, instant transfers, spend tracking, and budgeting built in. Depending on goals and requirements, we use React Native for cross-platform or native Swift and Kotlin. Technology choices are driven by long-term product strategy. |
Payment gateway development Modsen team builds custom payment gateway solutions with acquiring integrations, multi-currency processing, tokenization, 3DS2 authentication, and fraud detection tailored to your transaction flows. Our fintech software development company designs secure, scalable payment infrastructure aligned with PSD2 SCA and OWASP standards. |
Trading platform development Off-the-shelf brokerage stacks don't always cover custom strategies. We handle trading software development for custom platforms: order management, real-time risk engines, market data backtesting, mobile clients. Clients save infrastructure cost without sacrificing throughput. |
Neobank development Modsen fintech software developers deliver neobank MVPs end-to-end: core banking engine, KYC pipeline, card issuing, mobile app, compliance setup aligned with requirements. You choose your BaaS partner, card program, and KYC vendor once, with Modsen team's guidance, and build from there. |
Digital wallet development A single app holding fiat, crypto, loyalty, and a virtual card. Our team develops e-wallets, crypto wallets, multi-currency wallets, P2P transfer systems with KYC onboarding, transaction history, card issuing. Architecture scales from ~10K to 1M+ MAU without rewriting the transaction engine. |
Lending software development Modsen delivers lending software development for digital loan platforms, including loan origination, underwriting, servicing, collections, and P2P lending solutions. We integrate ML-based credit scoring and alternative data sources, such as transaction history and employment data, to support more accurate lending decisions. |
Open banking & API integration We develop PSD2-compliant open banking APIs, third-party integrations, consent management systems, and financial data aggregation platforms. Modsen follows global open banking standards while helping clients avoid common implementation risks, especially around consent UX and regulatory compliance, where many projects face adoption challenges. |
DeFi & blockchain development DeFi development services by our team help businesses create secure and scalable blockchain products. Our developers create smart contracts, build DEX architecture, design liquidity pools and yield-farming mechanics, tokenize real-world assets. |
Accredited fintech software development company
Compliance & security standards in fintech development
Modsen team builds fintech software development projects to international security and regulatory frameworks. Each standard below is followed in architecture, code, and process from project kickoff.
 GDPR EU regulation on personal data protection. We apply privacy-by-design to keep your EU launch clear of regulator findings and avoid revenue-based fines. |  OWASP Open Web Application Security Project – secure-coding standards for web applications. We enforce them in CI/CD to pass your enterprise clients' security reviews without rework. |  PSD2 EU directive on payment services and open banking. We build SCA and consent flows correctly the first time to eliminate rebuild cost and chargeback exposure. |
 FinCEN US Treasury AML/CFT and global FATF requirements. We ship KYC/AML pipelines audit-ready so your compliance team approves without rework. |  ISO/IEC 27001 International standard for information security management. Foundation for every Modsen team engagement to clear your vendor security reviews in days, not weeks. |  HIPAA US Health Insurance Portability and Accountability Act – required for fintech products touching healthcare payments, claims, or PHI. We sign BAAs and build HIPAA-aware to unblock healthcare partnerships. |
 PCI DSS Payment Card Industry Data Security Standard – mandatory for any product handling cardholder data. We build payment flows to PCI DSS requirements so your QSA audit passes without architecture rework. |  SOC 2 American Institute of CPAs framework for SaaS security, availability, and confidentiality. We design SOC 2-ready architecture so your audit timeline starts from controls, not codebase rebuilds. |  DORA EU Digital Operational Resilience Act – mandatory for EU financial entities since 2025. We build incident reporting and resilience controls into the stack to keep your DORA submissions defensible. |
Fintech development services with embedded AI
AI in fintech improves speed, cost, and quality. It automates decisions, reduces manual operations, and strengthens fraud prevention. At Modsen, we integrate LLMs, RAG systems, agentic AI workflows, and ML models to power fraud detection, document processing, KYC, and credit-scoring solutions.
Start with a free expert consultation
Discover how custom fintech software development can cut your time-to-market and pass regulatory review on first attempt.
Fintech software solutions for your industry
Banking & credit unions
Core banking modernization Digital banking Open banking APIs OCC, FFIEC alignment
Insurance & InsurTech
Claims automation AI underwriting Policy management NAIC, Solvency II
Lending & alternative finance
Loan origination AI credit scoring P2P lending platforms TILA, FCRA, HMDA
WealthTech & investment management
Portfolio management Robo-advisory Trading software development SEC, FINRA reporting
Payments & fintech startups
Payment gateways Digital wallets Neobank MVPs Embedded finance Fast MVP delivery
RegTech & compliance solutions
Transaction monitoring Regulatory reporting KYC orchestration NLP for regulatory text
Technologies we use for fintech software development
Java
Java 8/11/17/21
J2EE
Spring Framework- Kotlin
Ktor 3
Quarkus 3- Vert.x 4
JS
React
Angular
Vue.js
Next.js
Node.js
NestJS
Express- React Native
QA/AQA
- BDD
CI/CD
Selenium
Selenide
Playwright- Selendroid
Appium
AI/ML
Python
TensorFlow
Keras
PyTorch- MatLab
- Google Cloud Platform
.NET
C#
Visual Basic
F#- Linq
.NET Core- Entity Framework
Hibernate
ASP .NET MVC Core
WPF- MAUI
Mobile
- Objective-C
- Swift
SwiftUI- Java
- Kotlin
Jetpack Compose
Flutter
KMM
Business Analysis
- Requirements elicitation
- Requirements traceability
- Change management
- Diagramming
- Stackeholder management
- Prototyping
- Benchmarking
- Data analysis, SQL
System Analysis
- Requirements management
- Decomposition & Alignment
- Impact analysis
- Modeling
- Technical documentation
- Traceability
- System & Integration analysis
DevOps
- Cloud Platforms
- CI/CD
- Container Orchestration
- Infrastructure as Code (IaC)
- Configuration Management
- Monitoring & Observability
- Log Management
Why B2B and enterprise teams choose Modsen as their fintech software development company
Choosing a fintech & banking software development company comes down to security, senior engineering, delivery speed, transparent process, cost predictability, and domain fluency. Whether you need a partner for one platform or a full-cycle fintech partner, here's what we bring.
Security & compliance Compliance is a constraint on our every sprint. ISO 27001 controls, OWASP secure-coding standards, and GDPR data handling are enforced through automated checks in CI/CD, not retroactive audits. Security engineers join sprint planning. Penetration testing happens before production release. | Senior engineers only Modsen extends your fintech projects with fintech software developers who have already shipped financial systems to production. Average production experience in financial systems ~5+ years. The senior engineer in your sprint is actually senior in fintech. | Delivery speed Refined processes accelerate fintech development without compromising code quality or compliance. AI streamlines research, documentation, and test scaffolding under engineer supervision, while all architecture decisions and regulated production flows remain fully human-controlled, enabling faster releases. |
Transparent process Every contract includes a fixed budget with a defined scope of model with weekly burn reports. Changes are tracked, priced, and approved before work starts and never billed after the fact. You see weekly sprint demos and have access to project boards. | Cost predictability and efficiency Our team structures contracts around fixed-scope phases with defined costs. AI in fintech handles routine research, documentation, and non-code workflows under engineer supervision, so senior time goes to architecture and decisions that move your product forward. | Fintech domain fluency A specialized fintech development company carries about compliance, settlement timing, and regulatory edge cases your team forgot to raise. Modsen team has shipped projects across banking, payments, lending, wealthtech, and DeFi – and brings that pattern recognition to your roadmap. |
Fintech software development process at Modsen
As a fintech software development company, Modsen delivers secure, scalable, and regulation-ready digital products through a structured development lifecycle.
Discovery & requirements
Stakeholder interviews. Technical audit of existing systems. Regulatory mapping. AI cross-checks specifications and synthesizes documentation, cutting discovery time and catching gaps early.
Architecture & security design
System architecture, API design, and security modeling. Modsen team's internal AI infrastructure accelerates diagram generation, technical documentation, and pattern validation against past fintech projects – all critical decisions remain human-led.
UX/UI design
Wireframes, user flows, and high-fidelity prototypes for fintech software development services. AI in fintech assists with rapid prototyping and early design exploration, accelerating iteration cycles. Compliance touchpoints are reviewed before handoff to engineering.
Agile development
Two-week sprints, daily standups, sprint demos with stakeholders. Stack chosen per project. Senior fintech software developers write production code under code review and pair programming.
Continuous compliance & security monitoring
(runs across all phases)
Not a separate phase – a sweep that runs from kickoff through post-launch. Compliance evidence collected continuously, not assembled the week before an audit.
QA testing
Modsen AI-native QA combines autonomous test generation, regression analysis, and edge-case discovery with rigorous manual and automated testing, enabling faster validation cycles, stronger security oversight, and more reliable releases for banking software development and fintech platforms.
Deployment & ongoing support
CI/CD deployment to staging and production, infrastructure monitoring setup, and post-launch incident response. Ongoing support includes feature iterations, performance optimization, and security patching.
Fintech software development case studies
Voices of our long-standing fintech partners
“We see Modsen as a trustworthy partner providing high-quality banking mobile app services. As a result, we got a feature-rich and user-friendly app, enabling us to achieve higher levels of efficiency.”
Natalia Osipchik, Founder
UMIND
TopDevelopers · Verified
“We have asked them for some hard technical input, and they always rise to it. Modsen is very quick to respond to questions and requests. Their developers make excellent team members. They have an excellent work ethic.”
Executive, Lingoport Inc
Boulder, USA
Clutch · Verified
“Online small business loans platform has launched and received positive feedback on its UX. They help us decide the best way in which to deliver something that will ultimately help our business.”
Identity withheld for privacy
BusinessFirms · Verified
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Fintech software development at Modsen FAQ
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