Hire the Best JavaFX Developers in Lviv, UA

Hi! If you need your own website / high performance mobile or desktop application, you can always contact me! So, I suggest to consider my skills. First of all, I write code to my satisfaction. It gives me a lot of motivation to earn experience and meet new customers. I love to communicate with people and solve their problems or give an advice. I am full-stack peogrammer. Here you can see a list of languages, which I use to create an art: ✴️ PHP (Also Laravel Framework and CodeIgniter) [6 years of experience] ✴️ JavaSript (Also JQuery and Vue 3) [6 years of experience] ✴️ Java (5 years of experience) ✴️ SQL (Mysql, MongoDB and others) [6 years of experience] ✴️ Webpack ✴️ Vite ✴️ Docker / Docker Composer 📑 Also I am good in next markup languages: ✴️ HTML 5 ✴️ CSS 3 (Also with flexbox / grid) ✴️ SCSS / SASS (preprocessors) ✴️ Bootstrap (It is possible to use it as needed) So, if you really interested in my skills, I will always ready to help you! 😉

Database design, SQL, C/C++, Java, Oracle, MySQL, and MS SQL Server - all this are my areas of expertise. Over the last 30 years I have developed a lot of desktop and server side business applications using C, C++, Java, SQL, PL/SQL, T-SQL languages for customers from all over the world. I am trying constantly improve my skills and learning some new fashionable tools and technologies. Currently I am learning Golong and I like it. Also I have great experience in developing enterprise-scale applications using relational databases. I can do for you full-cycle applications development - from business analysis to end-user support. Let me assure that overwhelming majority of successful projects during my 12-years freelancer career is a good reason to hire me. My resume available on request. Sincerely, Nick Mukhin

Senior Backend Java Engineer and AI Developer with 7+ years of production experience, 8,800+ hours on Upwork, $300K+ earned, and a 100% Job Success Score (Top Rated Plus). I build web platforms, backend systems, and AI integrations — my own delivery is Python-first (LLM-powered agents, RAG pipelines, distributed REST APIs, data extraction systems, and cloud-native infrastructure on AWS), and for Java or Spring Boot engagements I lead, my engineering team brings deep Spring Boot, microservices, AWS architecture, and Auth0/OAuth 2.0 identity experience to the JVM side. Every engagement ends with a system that runs in production — properly architected, monitored, and ready to grow with the business. Technical stack that I can provide for your project: ☕ Java & Spring Boot Engineering (team-backed): Spring Boot microservices and REST/GraphQL/gRPC services, Java 21 upgrades, and Play Framework → Spring Boot migrations. Auth0-based identity with multiple OAuth 2.0 grant types (Authorization Code, Device, Password, Passwordless), SSO, JWT, and biometric authentication across 15+ international markets. Full AWS backend architectures provisioned from scratch via Terraform (API Gateway, ECS, Lambda, RDS, DynamoDB, S3, CloudFront, Route 53, IAM, SQS, SNS, EventBridge, CloudWatch), CI/CD with GitLab, Jenkins (Groovy), and BitBucket Pipelines, Hibernate, JPA, JUnit, Mockito, Testcontainers, Maven, Gradle, SonarQube, Veracode. 🤖 AI & LLM Development: I build LLM agents with multi-turn state using LangChain and LangGraph — the kind that run in production on Telegram, Discord, and WhatsApp. For knowledge retrieval I work with RAG pipelines backed by Qdrant and LLaMA-Index, with real semantic search over internal documents. Prompt engineering is a proper workflow here — evaluation frameworks, LangSmith observability, structured output validation. I integrate agentic workflows through API (OpenAI, Claude, Anthropic, Gemini) with full output control. ☁️ Cloud & Infrastructure: I work with the full AWS stack in production — S3, SQS, Lambda, Athena, DynamoDB, EKS, Kinesis, Bedrock, CloudFront, also Docker, Kubernetes (Helm + ArgoCD), and Terraform for reproducible infrastructure as code. Observability built in Datadog APM, OpenTelemetry, Sentry, and vector database management with Qdrant and AWS OpenSearch for semantic search and RAG retrieval. 🧭 When you choose me, you get a clear roadmap: - Consultation — I start by understanding your request, goals, and constraints before we start - Honest scoping — based on your needs I give you a real estimate with clear timelines - Full transparency — Agile workflow, regular meetings, and open communication at every step of the process - Clean delivery — proper documentation and handoff, so you truly own what I build - Support from idea to launch — I stay in contact after delivery, and stay involved as long as you needed 📩 Ready to get started? Contact me — I respond fast. Buzz words: Java JavaScript Python PHP API Web Development Node.js Android API Integration React Android App Development HTML MySQL Mobile App Development Amazon Web Services RESTful API Artificial Intelligence Web Application HTML5 CSS Spring Boot C++ iOS C# Smartphone Machine Learning AI Agent Development AI Development PostgreSQL AI App Development Data Scraping Data Science Automation Deep Learning AI Model Integration TensorFlow Django Natural Language Processing Claude Chatbot Development API Development TypeScript n8n OpenAI API AI Bot Full-Stack Development FastAPI Docker Next.js LLM Prompt Engineering Data Mining Computer Vision SaaS LangChain Software Architecture & Design Data Extraction Database Architecture SQL Lead Generation Vector Database Web Scraping Java Spring Boot Spring Framework Microservices Cloud Architect Terraform Apache Kafka Auth0 OAuth 2.0 JWT SSO Hibernate JPA JUnit Mockito Testcontainers Maven Gradle GitLab CI/CD Jenkins BitBucket Pipelines Stripe API GraphQL gRPC Java 21 AWS Lambda AWS ECS AWS API Gateway Web Platform Backend Architecture AI Integration

📢 Available for new projects 📢 I'm a Senior Java Developer with more than 10 years of commercial experience building stable, scalable, and secure backend systems. I specialize in Spring Boot microservices and cloud-native architecture — and I've shipped production systems in Fintech, EdTech, Healthcare, Retail, Hospitality, etc. My core strength is backend architecture: clean APIs, event-driven systems, and services that scale. I also work across the full stack development when needed — React on the frontend, Node.js for integrations, and AWS for deployment and infrastructure. What I bring to your project: - Production-grade Spring Boot microservices and REST APIs - Cloud infrastructure on AWS with Docker and CI/CD pipelines - Full-stack capability: Java backend + React frontend - Relational and NoSQL databases: PostgreSQL, MySQL, MongoDB - Clean, maintainable code with TDD and Agile workflows I've worked on SaaS platforms, enterprise systems, and MVPs — from initial architecture through to deployment. Go-To Stack: Java (Spring Boot, Spring Cloud, Hibernate) · React · Node.js · AWS · Docker · PostgreSQL · MongoDB · Jenkins · GitFlow Ready to start - just drop me a message and we will start working!

Hello there, I'm a Java developer with over 7 years of experience building and improving backend systems and APIs. I focus on creating reliable, well-structured solutions for platforms that handle many users and complex operations. 🛠️ My main tools include: • Languages: Java, JavaScript, TypeScript, Python, PHP • Frameworks: Spring Boot, React, React Native, Node.js, Laravel, Symfony • Cloud & DevOps: AWS, Azure, Docker, Jenkins • Databases: MySQL, PostgreSQL, MongoDB, NoSQL • Methods: Agile, TDD, CI/CD, GitFlow • AI Tools: I use CursorAI and other AI daily for efficient coding. I'm skilled in designing system architecture, leading technical projects, and ensuring smooth performance. I'm ready to take on challenging projects, from upgrading existing codebases to building new features from the ground up. 💬 Let's start working on your project right now, just write me in DM!

I am a Java developer with over 14 years of experience building full stack applications, enterprise systems, and SaaS platforms 🚀 My focus 🎯 is on using Java, Spring Boot, React.js, PostgreSQL, and AWS to deliver reliable, scalable software. As a Java developer, I have delivered dozens of projects across industries and use cases. My backend work is built entirely with Java. I create secure APIs and microservices using Spring Boot. I have deep experience in system architecture, backend performance, and database design. Every project I take as a Java developer is written with clean, maintainable Java code. I know how to structure services that scale. As a Java backend developer, I have built and maintained systems for high-load traffic, third-party integrations, and complex business logic. I manage full backend pipelines, from architecture and development to deployment and monitoring. I use Spring Boot and follow best practices every Java developer should apply. I also work as a full stack Java developer, connecting Java backends with React.js and JavaScript frontends. I create dashboards, user interfaces, and admin tools that are fast, stable, and fully integrated. I know how to deliver full stack features without bottlenecks. I have led teams as a senior Java developer, mentoring other developers, reviewing Java code, and improving team performance. My clients rely on me not just for development, but also for decisions about architecture, data structure, and deployment strategy. As a Java developer, I care about the full picture. In most projects, I take the role of a Java spring developer and own the backend infrastructure. I work with Docker, PostgreSQL, REST APIs, and cloud services. I often work independently, taking full responsibility for both backend and frontend parts as a full stack developer. Being a professional Java developer means I deliver production-ready code, meet deadlines, and communicate clearly. I work well with teams or as a solo contributor. My background as a Java backend developer and Java spring developer allows me to adapt to different project needs. If you need a Java developer who can work on backend systems, full stack features, or cloud-based platforms, I am ready to help. Whether you need a senior Java developer, a Java backend developer, or a reliable full stack Java developer, I can take your project from idea to production. 🛠️ Core Skills: - Java developer - Java backend developer - Full stack Java developer - Java spring developer - Spring Boot microservices - React.js and JavaScript - PostgreSQL, AWS, Docker Let’s talk if you need a results-driven Java developer to join your team or take over delivery. ‼️ Message me for a free 40-minute consultation ‼️