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You will get Java Developer with Secure Spring Boot Backend with Full Documentation
Top Rated
Project details
As a Java Developer, I will build you a scalable Java backend for your web application. I use modern tools like Spring Boot, Hibernate, and PostgreSQL.
I have good experience building systems that are secure and perform well. My focus is on creating a clear design and making sure it connects smoothly with your frontend or other APIs.
I have good experience building systems that are secure and perform well. My focus is on creating a clear design and making sure it connects smoothly with your frontend or other APIs.
Programming Languages
JavaCoding Expertise
Localization, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$250
|
Standard
$500
|
Advanced
$850
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 14 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 3 | 6 | 7 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
32 reviews
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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.
TT
Tom T.
Apr 10, 2026
Looking for an experienced Java developer for my project
Yurii was an amazing addition to our team throughout this project. He is talented and incredibly responsible. Yurii was deeply collaborative in every aspect of the design, development, and testing. I was most impressed with how Yurii adapted to using AI as an accelerator during this project. I saw a marked acceleration in our overall project output, and in the age of AI, Yurii's has been a great multiplier for us.
KO
Krista Mae O.
Apr 4, 2026
Senior Software Engineer, Backend
About Yurii
Full Stack Developer |Java Developer | React | Node.js | MVP
100%
Job Success
Lviv, Ukraine - 12:25 pm local time
Backend engineer, 10+ years, still get a small kick out of watching a system handle its first real traffic spike without blinking.
Fintech, logistics, healthcare, SaaS, different industries, same discipline: build it to survive contact with real users, not just pass a demo. I bring the same architecture rigor whether I'm leading a team or the sole engineer on a build.
Track record:
⭐ 100% Job Success Score
🏆 10+ years of commercial Java and Spring Boot development
🚀 30+ production systems delivered: SaaS platforms, APIs, and microservices
👥 Led engineering teams of 10+ developers through full-cycle SaaS delivery
💰 Built a fintech backend processing $15M+ annually
🚚 Scaled a logistics platform to 1.2M+ daily API requests through Redis optimization
📈 Delivered a full-stack SaaS MVP in 6 weeks that secured $500K+ in pre-seed funding
🏗️ Architected multi-tenant SaaS systems with role-based access and tenant data isolation
⚙️ Migrated monolithic Java applications to Spring Cloud microservices architecture
🔒 Built HIPAA-aware healthcare platforms and PCI-conscious payment systems
🔗 Designed webhook-driven and GraphQL API layers connecting third-party financial and business systems
🤖 Integrated OpenAI and Claude APIs into production workflows for AI-powered features
🧠 Use AI coding tools like Claude Code and Cursor daily, reviewing and owning every line before it ships
What I actually deliver as a Java Developer, Spring Boot Developer, and Full Stack Developer:
- Backend architecture and API design in Java, Spring Boot, Spring Cloud, Spring Security, and Hibernate, with Kafka, Redis, and RabbitMQ brought in where scale genuinely demands it
- REST and GraphQL API development, webhook integrations, OAuth2 and JWT authentication, role-based access control, and audit logging for compliance-sensitive systems
- Full-stack development across React, Next.js, TypeScript, Node.js, and PostgreSQL, MySQL, or MongoDB, so one engineer can own the stack end to end
- Cloud infrastructure and DevOps on AWS (EC2, S3, RDS, Lambda, ECS), Docker, Kubernetes, Terraform, Jenkins, and GitHub Actions CI/CD pipelines that actually get used
- Production-grade integrations: Stripe, Plaid, QuickBooks, Twilio, Firebase, and OpenAI/Claude API work for AI-powered features
- Database design and query optimization across PostgreSQL, MySQL, MongoDB, Redis, and Elasticsearch
- Clean, testable, maintainable code built on SOLID principles and TDD, not process for its own sake
I've spent real time inside fintech payment systems, HIPAA-aware healthcare platforms, real-time logistics tracking, multi-tenant SaaS products, CRM and ERP systems, and marketplace platforms, so by the time we've finished the first call, I usually already recognize the shape of the problem and where the architecture tends to get expensive if it's wrong from the start. I care about writing code that the next engineer, whether that's me in six months or someone else on your team, can actually read and extend without a walkthrough.
I work well both as the sole engineer owning a build end to end and as part of a small team, comfortable stepping into an existing codebase or architecting something new from a blank repo.
If you need a Java Developer, Spring Boot Developer, Backend Developer, or Full Stack Developer for a system that has to scale under real usage, let's talk about what you're building - just text me 🚀
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.
Requirement Analysis
Review all provided details, define app modules and scope.
Database & Architecture Setup
Design DB schema, configure Spring Boot project structure.