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You will get a Java Spring Boot Web Application or REST API

Illya P.Status: Offline
Illya P. Illya P.
5.0
Rising Talent
Preview image

Let a pro handle the details

Buy Web Application Programming services from Illya, priced and ready to go.
Illya P.Status: Offline
Illya P. Illya P.
5.0
Rising Talent
Preview image

Let a pro handle the details

Buy Web Application Programming services from Illya, priced and ready to go.

Project details

Looking for experienced Java developers to build or extend your application?
Our team specializes in Java and Spring Boot development, helping startups and businesses create scalable web applications, backend systems, microservices, and enterprise-grade APIs.

šŸš€ We can help with:
āœ” Java Development
āœ” Spring Boot Applications
āœ” REST API Development
āœ” Microservices Architecture
āœ” Database Design
āœ” Cloud Deployment
āœ” CI/CD Pipelines
āœ” Application Modernization

We focus on clean architecture, maintainable code, security, and long-term scalability.

Keywords:
java developer, spring boot developer, java spring boot, java backend developer, java web application, rest api development, microservices, hibernate, spring security, enterprise application development, java software engineer, backend development
Programming Languages
JavaScript, Java, TypeScript
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Security

What's included $10,000

These options are included with the project scope.

$10,000
  • Delivery Time 5 days
  • Number of Revisions 3
5.0
7 reviews
100% Complete
(7)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)

SJ

Seth J.
5.00
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.
5.00
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.
5.00
Jan 30, 2019
Vaadin and Hibernate Senior Developer Great work.

MG

Michelle G.
5.00
Sep 19, 2016
Java Developer. Illya worked Server Side for us for nearly a year.

BB

Bas B.
5.00
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.
Illya P.Status: Offline

About Illya

Illya P.Status: Offline
Java Developer Spring Boot | Full Stack Java Developer | React Native
5.0 Ā (7 reviews)
Kharkiv, UkraineĀ - 6:59 am local time
šŸ‘‹ I'm a Senior Full Stack Java Developer with 20+ years of experience building enterprise software, healthcare platforms, fintech solutions, SaaS products, and mobile applications.

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

šŸ’Ŗ Full Stack Java Developer Expertise

āœ”ļø 20+ years of Java development 100 successful projects using Java, Spring Boot, Spring Security, Hibernate, and enterprise architectures
āœ”ļø Full Stack Development covering backend architecture database design frontend implementation and React Native mobile applications
āœ”ļø Spring Boot Development, REST API microservices cloud-native applications and high-performance backend systems
āœ”ļø Backend Architecture, distributed systems, 50 third-party integrations, authentication systems, and secure API development
āœ”ļø PostgreSQL MySQL Redis AWS Docker Kubernetes CI/CD performance optimization and legacy system modernization
āœ”ļø Extensive experience designing business-critical applications where scalability, maintainability, security, and long-term growth are key requirements
āœ”ļø Experience integrating payment gateways, healthcare systems, cloud services, identity providers, and external enterprise platforms
āœ”ļø Strong understanding of software architecture, design patterns, clean code principles, and modern development practices
āœ”ļø Experience leading technical initiatives, collaborating with distributed teams, participating in code reviews, and helping businesses make technology decisions

šŸ„ 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

āœ”ļø EHR / EMR systems, telemedicine platforms, patient portals, and patient engagement applications
āœ”ļø FHIR & HL7 integrations for healthcare interoperability and secure data exchange
āœ”ļø React Native healthcare applications with Apple HealthKit Google Fit BLE integrations and real-time health monitoring
āœ”ļø Improved patient engagement by up to 100%
āœ”ļø HIPAA compliant architectures with encrypted storage, audit logging, role-based access control, and secure API
āœ”ļø Java Spring Boot backend systems with up to 99.9% uptime
āœ”ļø Healthcare workflow automation, provider portals, appointment management systems, and patient communication platforms.

šŸ’³ 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.

āœ”ļø Stripe Apple Pay Google Pay and 3D Secure ( 3DS ) integrations
āœ”ļø KYC & AML workflows for onboarding and compliance automation.
āœ”ļø Reduced payment default rates in more than 100+ projects
āœ”ļø Payment processing platforms, transaction management systems, and financial API
āœ”ļø Secure fintech architectures with encrypted storage, tokenization, audit logging, and secure authentication.
āœ”ļø Financial reporting systems, payment workflows, transaction monitoring, and compliance-focused software solutions.

šŸ† Key Results

āœ”ļø 15+ years of commercial software development experience. (role Full Stack Java Developer )
āœ”ļø Built enterprise healthcare fintech and SaaS applications for startups and growing businesses
āœ”ļø Achieved up to 100% uptime for mission-critical systems.
āœ”ļø Improved patient engagement by up to 40%
āœ”ļø Reduced payment decline rates by up to 25%
āœ”ļø Improved application performance by up to 35%
āœ”ļø Reduced infrastructure costs by up to 25%
āœ”ļø Reduced security vulnerabilities by up to 90%
āœ”ļø Modernized legacy applications through microservices adoption and cloud migration initiatives

šŸ“Œ Core Technologies

Java Developer ā€¢ Spring Boot ā€¢ Spring Security ā€¢ Hibernate 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€¢ FHIR ā€¢ HL7 ā€¢ HIPAA ā€¢ PCI DSS ā€¢ Stripe ā€¢ KYC ā€¢ AML

šŸ“© 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

Review the work, release payment, and leave feedback to Illya.