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Greetings, I'm Aaron, a software engineer with 11 years experience. I am an expert at Java and Spring Boot, while also being well versed in many other languages, JavaScript, NodeJS, PHP, C++. I know web very well, so HTML, CSS, React, and various other frontend tech. The databases I use include MySql, Postgresql, Mariadb, Mongo, Redis, Kafka and others. I work on the following sorts of projects: - Creating REST APIs and developing backends - Database design and implementation, optimizations - Building web apps, both internal and external - Integrations between systems, writing custom integration code - Custom automations, usually in code. - IT work, setting up servers and cloud infrastructure, scalable systems - Anything at all related to Java, Spring Boot, and this ecosystem I can do the entire lifecycle for your software, you just tell me the requirements, I'll get it done.

As a dedicated Full Stack Software Engineer, I specialize in Ruby on Rails and React, with a proven track record of delivering high-quality solutions. My experience spans across various projects, including updating and maintaining Ruby on Rails applications hosted on Heroku, and collaborating with teams to manage backlogs using tools like Linear. I am proficient in Java, JSON, and have a strong foundation in web development technologies such as JavaScript, HTML, CSS, and Bootstrap. I have successfully tackled challenges such as cleaning up and packaging Java code, updating neglected applications, and setting up local development environments on M1-based Macs. My approach is rooted in responsibility, good judgment, and effective time management, ensuring that I consistently meet project deadlines and exceed client expectations. I am passionate about leveraging my skills to help companies achieve their goals and am always eager to take on new challenges that allow me to grow and contribute to innovative projects.

Graduated from Georgia State University with proficiency in programming language using Java, SQL, Spring Boot, Angular, AWS, etc technologies. With more than 3 years of experience in software industry I am capable of developing highly standard, scalable, optimized and robust on demand enterprise level Web/Desktop Applications with Java Spring and Spring boot, Angular and JavaFX Expertise in: ✔️ Spring boot web application development ✔️ Spring boot Rest and Soap API development ✔️ Spring boot with Spring JPA (SQL/NoSQL) integrations ✔️ Web application development with angular + Spring boot ✔️ Web application development with Javascript + jQuery + Spring boot + angular ✔️ Provide development support for existing applications ✔️ API document with Swagger ✔️ Implements basic, token-based authentication (OAuth2.0, JWT) . ✔️ Oracle, MSSQL, SQL, MySQL Elastic Search ✔️ Profound Knowledge of SDLC and Software Testing Life Cycle ✔️ Excellent communicational, interpersonal, analytical and problem-solving skills. ✔️ Xcode and swift. ✔️ Auto Layout for all screen sizes. ✔️ Firebase Realtime Database/Cloud Firestore. ✔️Push notifications. ✔️Social Media Integration (Google, Facebook, Twitter etc.) ✔️ Submitting App to App Store. SKILLS: Back-End : ● Java, Spring (Core, Web, MVC, Security, JPA), Spring Boot, JAX-RS, JAX-WS, JavaFX and JavaSwing Mobile App Development: ● Xcode, Swift, Firebase AWS service : ● AWS Lambda, S3, EC2, VPC, Route53, RDS Database : ● MySQL, Oracle, PostgreSQL Front-End : ● HTML, Bootstraps, Angular 2+, Javascript, jQuery CICD pipeline and Container Orchestration : ● Jenkin ● Docker ● Kubernetes Server : ● Tomcat Version Control & Build Tool: ● Gradle, Maven, Git

Upwork Expert-Vetted Talent (Top 1%) Microsoft Certified AI Engineer (Certification number: DEB32A-P5EE8C) Fullstack Developer | Software Engineer | Solutions Architect | AI Engineer | UI/UX Designer Tech Stacks Languages & Frameworks: C / C++ / C# / .NET / Unity / Java / JavaScript / TypeScript / Python / Rust / PHP / VB Razor Pages / CSS3 / Maven / Spring / Angular 2+ / React.js / Redux / jQuery / HTML5 / JSX / XAML / XML/XSLT / ASP.NET MVC / ASP.NET Core / .NET Framework / DevExpress UI / Spring Framework / Spring Boot / Spring Cloud / JavaFX / QT / QML Databases: MySQL / PostgreSQL / MSSQL / NoSQL / MongoDB / Azure Cosmos DB / Redis / Firebase Realtime Database DevOps & Containerization: Docker / Kubernetes / Azure DevOps AI & Machine Learning: Machine Learning / Deep Learning / TensorFlow / PyTorch / MATLAB / Azure Cognitive Services / Azure OpenAI Services / Azure AI Video Indexer / Azure AI Prompt Flow / Google Assistant SDK Blockchain Development: Ethereum / Binance Smart Chain / Solana / Stellar / Smart Contract Development / IoT Blockchain Technologies Additional Tools & Platforms: QuickBooks Online (Intuit) App Development / Shopify App Development Full Stack Development Services App Development: Mobile, Web, and Desktop Applications, Macros & Scripts Blockchain Development: Smart Contract Development and Blockchain Integration for Ethereum, Binance Smart Chain, Solana, and Stellar Algorithmic Trading: Algo Trading Platforms for Stocks and Cryptocurrency Dashboards & Analytics: Custom Dashboards, Metrics, and Business Intelligence Solutions Custom CRM & ERP Systems: Design, Development, and Integration of Customized CRM and ERP Solutions Database Management: Database Design, Optimization, Maintenance, and Integration for MySQL, PostgreSQL, MSSQL, NoSQL, MongoDB, and other leading database systems Software Integrations: Third-Party Software Integration and IT Security Implementations AI & Cognitive Services: Development of Machine Learning, Deep Learning, and Cognitive AI Solutions using Azure AI Stacks (Cognitive Services, OpenAI, Prompt Flow, Video Indexer) and Google AI SDK

I’m a hardworking and detail oriented full-stack web and mobile architect who’s helped companies both small and large maintain their online presence for over a decade. I understand that every customer is different and I can easily adapt to any environment to tailor solutions that fit your needs, whether it’s a small bootstrap startup or a large enterprise. I will work with you one-on-one to create a strategy focused on product delivery, growth, and technical excellence. My specialties include cloud services (e.g. AWS, Azure, Google Cloud), real-time systems, business intelligence, big data, enterprise web apps, scalability, education, and open source software. My full stack experience includes Node, and Express/Nest/Hapi/Loopback, and MongoDB as well as more traditional technologies like PHP, ASP.NET, and Python. Additionally, I have extensive knowledge of front-end JavaScript and browser APIs as well as significant experience with popular frameworks and libraries like React, Vue and Redux. I’m a self starter and I love working on new and challenging projects that push me to my limits and allow me to learn and grow.

Hi, I'm Georgiy, a Java developer focused on small Java applications, bug fixing, clean OOP code, and practical automation. I can help you with: - fixing Java errors and debugging existing code, - building small console or desktop-style Java applications, - cleaning up student or beginner Java projects, - adding simple features to Maven projects, - writing basic tests with JUnit, - creating simple automation or Telegram bot prototypes. I work carefully, communicate clearly, and explain what I changed so you can understand and maintain the result later. My current stack includes Java Core, OOP, Collections, Maven, Git, JUnit, and Spring Boot basics. I also use AI-assisted development tools to work faster while still checking the logic myself. If you have a small Java task, a bug that needs fixing, or a project that needs cleanup, send me the details and I will suggest a clear next step.