You will get Secure FinTech Application Built by Full Stack Java Developer
Rising Talent
Project details
š³ Need a reliable development team for your FinTech product?
We help startups and businesses build secure, scalable financial applications, payment platforms, business management solutions, and custom software products designed for growth.
š Our expertise includes:
ā FinTech Web Applications
ā Financial Platforms
ā Payment Integrations
ā Secure APIs
ā SaaS Products
ā Cloud Infrastructure
ā DevOps & CI/CD
Using Java, Spring Boot, React, Angular, and modern cloud technologies, we build solutions that prioritize security, performance, and maintainability.
Keywords:
fintech development, fintech software, financial software development, payment integration, fintech app, financial platform, fintech SaaS, banking software, spring boot fintech, java fintech development, secure fintech application, financial technology
You will get React Native Developer | Mobile App Development Wearable & API Integration
We help startups and businesses build secure, scalable financial applications, payment platforms, business management solutions, and custom software products designed for growth.
š Our expertise includes:
ā FinTech Web Applications
ā Financial Platforms
ā Payment Integrations
ā Secure APIs
ā SaaS Products
ā Cloud Infrastructure
ā DevOps & CI/CD
Using Java, Spring Boot, React, Angular, and modern cloud technologies, we build solutions that prioritize security, performance, and maintainability.
Keywords:
fintech development, fintech software, financial software development, payment integration, fintech app, financial platform, fintech SaaS, banking software, spring boot fintech, java fintech development, secure fintech application, financial technology
You will get React Native Developer | Mobile App Development Wearable & API Integration
Programming Languages
JavaScript, Java, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $20,000
These options are included with the project scope.
$20,000
- Delivery Time 3 days
- Number of Revisions 2
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SJ
Seth J.
Apr 24, 2020
Senior full-stack Java and AngularJS developer
With no exaggeration I can say that Illya is flat-out amazing. Excellent developer, an expert in his field. But also a great communicator, and super bright problem-solver. Always understanding the exact problem and getting it solved better and faster than anyone had even hoped for. This is how doing software development should be!
an
alex n.
May 1, 2019
Java architect, java spring, api expert needed for complex aggregator project
It has been a pleasure working with Ilya, as a project manager. Unfortunately for unrelated reasons had to close the contract.
SZ
Stan Z.
Jan 30, 2019
Vaadin and Hibernate Senior Developer
Great work.
MG
Michelle G.
Sep 19, 2016
Java Developer.
Illya worked Server Side for us for nearly a year.
BB
Bas B.
Sep 15, 2016
Spring MVC for Cloud-based productivity tool
Continuing to work with this team. As usual, highly experienced, committed and .... most importantly ethical guys to work with. I highly recommend them.
About Illya
Java Developer Spring Boot | Full Stack Java Developer | React Native
Kharkiv, UkraineĀ - 11:49 pm local time
As a Java Developer I've built high-load backend systems, REST AP payment solutions document processing platforms, and business applications used by thousands of users. As a Full Stack Developer and React Native Developer I've helped startups and growing companies launch scalable products while maintaining security, performance, and compliance.
Throughout my career, I've worked with startups, established businesses, and enterprise clients, helping them transform ideas into reliable software products. My experience covers the entire development lifecycle, from architecture planning and technical discovery to development, deployment, optimization, and long-term support.
My expertise includes Java Developer Spring Boot React Native AWS PostgreSQL Docker Kubernetes microservices cloud infrastructure and secure software architecture
šŖ Full Stack Java Developer Expertise
āļø 20+ years of Java development 100 successful projects using Java, Spring Boot, Spring Security, Hibernate, and enterprise architectures
āļø Full Stack Development covering backend architecture database design frontend implementation and React Native mobile applications
āļø Spring Boot Development, REST API microservices cloud-native applications and high-performance backend systems
āļø Backend Architecture, distributed systems, 50 third-party integrations, authentication systems, and secure API development
āļø PostgreSQL MySQL Redis AWS Docker Kubernetes CI/CD performance optimization and legacy system modernization
āļø Extensive experience designing business-critical applications where scalability, maintainability, security, and long-term growth are key requirements
āļø Experience integrating payment gateways, healthcare systems, cloud services, identity providers, and external enterprise platforms
āļø Strong understanding of software architecture, design patterns, clean code principles, and modern development practices
āļø Experience leading technical initiatives, collaborating with distributed teams, participating in code reviews, and helping businesses make technology decisions
š„ Healthcare Software Development Expertise
As a Senior Java Developer and Full Stack Developer, I've built secure and HIPAA-compliant healthcare software for startups, clinics, and digital health companies.
āļø 100+ healthcare applications including EHR/EMR systems, telemedicine platforms, patient portals, and engagement solutions
āļø 80+ FHIR & HL7 integrations for healthcare interoperability and secure data exchange
āļø 150 React Native healthcare apps with Apple HealthKit, Google Fit, BLE, and real-time health monitoring
āļø 100+ healthcare features delivered, improving patient engagement and clinical workflows
āļø 50+ HIPAA-compliant architectures with encrypted storage, audit logging, RBAC, and secure APIs
āļø 100 Java Spring Boot backend systems with up to 99.9% uptime
āļø150+ healthcare workflow automations, provider portals, appointment management, and patient communication platforms
š³ Fintech Software Development Expertise
As a Full Stack Java Developer I've built PCI DSS-compliant fintech platforms focused on payments, identity verification, and transaction security.
āļø 30+ Stripe, Apple Pay, Google Pay, and 3D Secure (3DS) integrations
āļø 20+ KYC & AML workflows for onboarding and compliance automation
āļø 100+ payment features delivered, reducing friction and improving transaction success
āļø 25+ payment platforms, transaction systems, and financial API integrations
āļø 15+ PCI DSS architectures with encryption, tokenization, audit logging, and secure authentication
āļø 50+ financial reporting, payment workflows, transaction monitoring, and compliance solution
š Key Results
āļø 20+ years of commercial experience as a Full Stack Java Developer
āļø 100+ enterprise projects across Healthcare, FinTech, SaaS, and AI
āļø 55+ AI-powered products using OpenAI, Claude API, FastAPI, AI Agents & RAG
āļø Up to 100% uptime for mission-critical healthcare and fintech systems
āļø Up to 40% higher patient engagement through digital health solutions
āļø Up to 25% lower payment decline rates with optimized payment workflows
āļø Up to 35% faster application performance and scalability improvements
āļø Up to 90% fewer security vulnerabilities with secure architectures
š Core Technologies
Java Developer ā¢ Spring Boot ā¢ Spring Security ā¢ React Native ā¢ TypeScript ā¢ PostgreSQL ā¢ MySQL ā¢ Redis ā¢ Kafka ā¢ AWS ā¢ Docker ā¢ Kubernetes ā¢ REST API ā¢ Microservices ā¢ HIPAA ā¢ Stripe
š© Looking for a technical partner who understands both technology and business goals?
I help companies build, scale, and modernize Healthcare Fintech SaaS and Enterprise products using Java Spring Boot Full Stack technologies and React Native
If you're looking for more than just code, let's discuss your project and how I can help.
Steps for completing your project
After purchasing the project, send requirements so Illya can start the project.
Delivery time starts when Illya receives requirements from you.
Illya works on your project following the steps below.
Revisions may occur after the delivery date.
Understanding the concept and step-by-step planning for implementation