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⚡ Backend systems should not become fragile over time; they must stay maintainable, scalable, and reliable as products grow. I am a Backend Engineer specializing in Java, Kotlin, and Spring Boot, focused on building production-grade systems where clean architecture, long-term maintainability, and stability are critical. I combine strong backend engineering practices with practical system design to create APIs and services that remain easy to extend, debug, and operate in real-world environments. Clients work with me when system quality, clean code, and scalable backend architecture matter, not just feature delivery. 🏆 Proven Engineering Approach ✔ Clean, maintainable backend architecture ✔ Production-focused development mindset ✔ Long-term scalability and reliability focus ✔ Clear communication and structured collaboration 🚀 Core Capabilities ☕ Backend Engineering with Java & Kotlin • Spring Boot application development • REST API design & implementation • Business logic architecture • Secure and maintainable backend systems • Performance-focused backend development 🏗 Scalable System Architecture • Microservice-based architectures • Modular and maintainable code structure • Service communication patterns • Production-ready backend design • Reliability and scalability optimization 🗄 Database & Persistence Engineering • PostgreSQL, MySQL, MongoDB • Hibernate / JPA / Spring Data JPA • Query optimization & data modeling • Relational and NoSQL database design ⚙ Development & DevOps Workflow • Docker-based environments • Git-based development workflows • Unit & integration testing • CI/CD-friendly project structures 🔍 Engineering Focus 🏢 Enterprise & Business Platforms Scalable APIs • backend services • maintainable systems 🚀 Startup Products & SaaS Platforms Fast iteration • clean architecture • long-term scalability 💡 Engineering Mindset • Architecture-first thinking • Clean and understandable code • Simplicity over over-engineering • Production reliability focus • Ownership from development to deployment • Long-term maintainability mindset 🧰 Technical Stack Java • Kotlin Spring Boot • Spring MVC • Spring Data JPA REST APIs • Microservices PostgreSQL • MySQL • MongoDB Hibernate • JPA Docker • Git ✨ Why Clients Choose Me ⭐ Clean and maintainable backend architecture ⭐ Scalable production-ready systems ⭐ Strong Java & Kotlin expertise ⭐ Clear communication & accountability ⭐ Reliable engineering mindset 🚀 Ready to Build Stable, Scalable Backend Systems? If you need a backend engineer who cares about clean architecture, maintainable systems, and production reliability, I am ready to help. Let us build backend systems that stay reliable, scalable, and easy to maintain long after launch.

Hi, I am a motivated senior software developer who strives for excellence in work. I have been working remotely for the last 6 years since pandemic. I have worked with a few US company for more than 2 years. I have just started working on freelancing on Upwork. My goal is to prove my skills and knowledge to clients for now. Briefly, I have experience for more than 10 years in Java software development. I have a strong academic background in Computer Science. I am specialized in Spring framework and Spring Boot. 𝐎𝐔𝐓𝐒𝐓𝐀𝐍𝐃𝐈𝐍𝐆𝐒 - Ability to design and develop micro-services and Restful APIs effectively in Java 8+, Java 17 and Java 21 - Spring Web, MVC, Kafka, JPA, Hibernate, JDBC, Reactive Programming, Webflux - SQL and NoSQL, MongoDB, PostgreSQL, MySQL, Snowflake, DBT - OAuth 2.0 , JWT / API Key, Spring Security 𝐅𝐑𝐎𝐍𝐓-𝐄𝐍𝐃 - React, Redux - Javascript, HTML, CSS, Tailwind CSS

Experienced Java Developer Specializing in Telecom and Financial Software Solutions With over 14 years of expertise, I bring a wealth of experience in building high-performance, scalable software solutions for the Telecom sector, including WhatsApp SMS integrations, and financial software systems. Key Skills & Expertise: ✅ Java (Core & Advanced) ✅ Spring Boot (Microservices & Security) ✅ RESTful & SOAP Web Services ✅ Microservice Architecture ✅ Apache Kafka & RabbitMQ (Messaging) ✅ Redis, Cassandra, MongoDB, Apache HBase (NoSQL Databases) ✅ Oracle, MySQL, PostgreSQL, MSSQL (Relational Databases) I am driven by solving complex technical challenges and staying ahead of industry trends, ensuring that my clients receive innovative, reliable solutions. Let's bring your ideas to life.⭐

Hello, Graduated from computer engineering. Developing java based web and desktop applications for about 7 years. Worked as a full stack developer in ERP, file management and security projects with java spring boot as backend and react.js in frontend. Used APIs and communicated third party APIs in my projects. Please, contact me to discuss the details of your project. The main technologies I use : Java, Spring boot, Spring Data, Spring MVC React Js, JSF, JSP, HTML, css, Javascript PostgreSQL, DB2, MySQL, MSSQL Redis Websphere,Apache Tomcat Jasper Reporting Tool, SSRS Git, TFS Azure Devops

Reliable contractor and seasoned software engineer with a wide range of experiences across multiple industries, including Banking, Financials, Logistics, and Telecom. - Proficient in the Java ecosystem, mainly focused on Spring and J2EE. - Participated in monolith and microservices design styles. - Working knowledge of DevOps toolchain (Maven, Git, Jira, Gitlab/Github) - Extensive experience in database and data-related operations (SQL, ETL, visualization) - Python Enthusiast - I can help you to maintain and improve legacy systems.

I am a full‑stack developer with 3+ years of professional experience building and maintaining production systems in the banking and financial sector. My expertise covers backend development with Java and Spring Boot, frontend development with React, and cloud‑native architectures on AWS, Docker, and Kubernetes.​ On the backend, I design and implement RESTful and microservice architectures using Java, Spring Boot, Hibernate/JPA, and SQL/NoSQL databases such as Oracle, PostgreSQL, and DynamoDB. I have hands‑on experience deploying microservices on OpenShift and containerized environments, and setting up CI/CD pipelines with Jenkins for automated testing and delivery.​ On the frontend, I build responsive single‑page applications using React and modern JavaScript, integrating them with secure APIs and implementing clear, maintainable UI logic. This allows you to work with a single developer who can own the full web stack, from database schema and business logic to user interface and production deployment.​ I also design and deliver fully serverless applications using AWS Lambda, API Gateway, and DynamoDB, as in my public URL‑shortening service (urlcutlabs). This experience means I can build cost‑efficient, auto‑scaling solutions where you only pay for actual usage, without worrying about server management.​ What I can do for you: - Design and develop complete web applications (backend + frontend) with Java/Spring Boot and React - Build RESTful and GraphQL APIs, integrate third‑party services, and ensure secure, robust data handling​ - Create serverless backends on AWS using Lambda, API Gateway, DynamoDB, and related services​ - Design relational and NoSQL database schemas and write efficient queries (Oracle, PostgreSQL, MySQL, DynamoDB)​ - Implement CI/CD pipelines, containerization, and deployment using Jenkins, Docker, Kubernetes/OpenShift​ - Refactor, debug, and optimize existing applications to improve performance, maintainability, and reliability If you need a developer who can take ownership of your project from idea to deployed, monitored, and maintainable application, let us discuss your requirements and define a clear, deliverable‑focused plan. Let’s build something solid together.