Yurii isn't taking new orders for this project right now. Here are some similar projects to explore.
You will get Java, Spring Boot Developer for your Web Application | Java Development
Top Rated
Project details
You will get the back-end development from scratch for your web project of any complexity with Java tech stack (Spring, Spring Boot, etc.). My 10-year expertise within this field guarantees:
• Clear, direct communication with English-speaking developer
• Clean code with no bugs
• High-level security for your project
• Final product that meets your requirements and deadlines
• If needed - a team of Java developers for big projects.
• The price here is per hour of work. Can be flexible though for long-term projects.
• Clear, direct communication with English-speaking developer
• Clean code with no bugs
• High-level security for your project
• Final product that meets your requirements and deadlines
• If needed - a team of Java developers for big projects.
• The price here is per hour of work. Can be flexible though for long-term projects.
Programming Languages
JavaCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $40
These options are included with the project scope.
$40
- Delivery Time 1 day
- Number of Revisions Unlimited
- Source Code
34 reviews
(33)
(1)
(0)
(0)
(0)
This project doesn't have any reviews.
AG
Andrew G.
Sep 10, 2026
Full Stack Developer Needed SaaS Web App Fixes
Yurii is an outstanding full stack developer. He jumped straight into our codebase, connected the backend REST API flawlessly, and integrated the Node.js/Next.js setup without any friction. Super clean code, strong problem-solving skills, and great attention to detail.
RG
Robert G.
Aug 26, 2026
Full-Stack Developer (Java/Spring Boot + React) for SaaS Feature Build
Great experience working with Yurii. Strong full-stack developer, skilled in Java, Spring Boot, Node.js, React, and PostgreSQL, with solid backend architecture and clean, maintainable code. He communicated clearly throughout, delivered on time. Comfortable owning features end to end, from API design to deployment. Would definitely hire again for any full-stack or backend project.
AG
Andrew G.
Aug 12, 2026
Java Developer Backend Developer - AI Travel Planning Platform (MVP)
Yurii is a great Java Developer and Backend Developer. He did an amazing job on our AI MVP. His Spring Boot and Java skills are top level. Very independent, easy to communicate with, and delivers great results on time.
RG
Robert G.
Aug 4, 2026
Backend Java Developer (Spring Boot)
Solid senior Java developer. Knows Java and Spring Boot deeply and writes code that’s actually maintainable. Clear communicator and he was proactive about edge cases we hadn’t thought of and delivered ahead of schedule. Will work with again, highly recommend
RG
Robert G.
Apr 10, 2026
Create Java GC dump
Yurii is excellent. He quickly identified and resolved a complex issue with Java and AWS that our team had been unable to fix for over a week. His technical expertise, problem-solving skills, and ability to dive deep into the root cause were truly impressive.
Communication was clear and efficient throughout the process, and he kept us updated at every step. He not only fixed the issue but also ensured everything was stable and working smoothly afterward.
Highly professional, reliable, and a pleasure to work with. I would definitely recommend Yurii and look forward to working together again.
Communication was clear and efficient throughout the process, and he kept us updated at every step. He not only fixed the issue but also ensured everything was stable and working smoothly afterward.
Highly professional, reliable, and a pleasure to work with. I would definitely recommend Yurii and look forward to working together again.
About Yurii
Full Stack Developer | AI Integration, LLM APIs | Python & Node.js
100%
Job Success
Lviv, Ukraine - 3:58 am local time
Nobody calls a developer at 3am about the frontend. They call about the payment that double-charged, the queue that backed up, the database that locked under load. I build the parts that get called about, and I build them so they don't.
Full Stack Developer, 10+ years. Java and Spring Boot on the backend, React and Next.js on the front, one engineer owning the whole feature instead of handing half of it over a wall. Fintech, logistics, healthcare, SaaS. Different industries, same rule: it has to survive real users, not just pass a demo.
Track record:
⭐ 100% Job Success Score
🏆 10+ years commercial development, 30+ production systems shipped
👥 Led teams of 10+ developers through full-cycle SaaS delivery
💰 Fintech platform processing $15M+ annually
🚚 Logistics platform scaled to 1.2M+ daily API requests through Redis optimization
📈 SaaS MVP built in 6 weeks that secured $500K+ pre-seed
🏗️ Multi-tenant SaaS with role-based access and tenant isolation enforced at the database, not in the app
⚙️ Monolith to Spring Cloud microservices migrations
🔒 HIPAA-aware healthcare platforms and PCI-conscious payment systems
🔗 Webhook-driven and GraphQL API layers into third-party financial systems
🤖 OpenAI and Claude APIs in production workflows
🧠 Claude Code and Cursor daily, every line reviewed and owned before it ships
What I build:
- Full-stack features end to end: React, Next.js and TypeScript on the frontend, Java, Spring Boot and Node.js behind it
- Backend architecture in Spring Boot, Spring Cloud, Spring Security and Hibernate, with Kafka, Redis and RabbitMQ added when scale actually demands it rather than because they look good on a diagram
- REST and GraphQL APIs, webhook integrations, OAuth2 and JWT, role-based access, audit logging for compliance-sensitive systems
- Database design and query optimization across PostgreSQL, MySQL, MongoDB, Redis and Elasticsearch
- AWS (EC2, S3, RDS, Lambda, ECS), Docker, Kubernetes, Terraform, Jenkins, GitHub Actions
- Stripe, Plaid, QuickBooks, Twilio, Firebase, OpenAI and Claude integrations in production
- Clean, testable code on SOLID principles and TDD, not process for its own sake
Fintech payments, HIPAA-aware healthcare, real-time logistics, multi-tenant SaaS, CRM and ERP, marketplaces. By the end of a first call I usually recognize the shape of the problem and where the architecture gets expensive if it's wrong early. The code I leave behind reads without a walkthrough, whether that's your next engineer or me in six months.
Sole engineer on a build or inside a small team, blank repo or someone else's codebase. All fine.
Share what you’re building and where you’re stuck. Let’s find the right way forward - text me to start!
Steps for completing your project
After purchasing the project, send requirements so Yurii can start the project.
Delivery time starts when Yurii receives requirements from you.
Yurii works on your project following the steps below.
Revisions may occur after the delivery date.
Intro Call
The first call needs for discussing the requirements, a rough estimation, tech consultation (if needed), etc. Also, we discuss our next steps here and customize workflow per your needs, like the time zone, and full or part-time schedule.