I specialize in building secure, scalable, production-ready backend systems using Java, Spring Boot & microservices architecture for startups and enterprises. Back-end technologies: - Spring-framework, spring-security - JPA/Hibernate + Spring-Data - REST, GraphQL, and WebServices (Spring-Boot) - Apache Kafka, Camel - SQL, MySQL, PostgreSQL, MariaDB, MongoDB - Maven/Gradle/Ant Front-end technologies: - Spring-MVC, Struts - template engines: Thymeleaf, JSP/JSTL, GSP, Freemarker, Jtwig, Velocity - JQuery and Bootstrap - HTML5, CSS3, JavaScript - Angular, React SDLC - Agile and Scrum programming methodology - TDD using JUnit, Mockito, Karma (for UI) - Eclipse, STS and Intellij IDEA - Git, SVN, and CVS code repositories - Maven, Ant, and Gradle build tools - Jenkins and Bamboo CI servers - Docker, Kubernetes - Bash scripting, Server Administration Cloud - Amazon cloud deployment using EC2 - Amazon file sharing S3 - Amazon cloud database using RDS - Amazon based messaging (SNS and SQS) - Google cloud platform - Heroku based could deployment - VPS setup and administration

Hello, I am Miloš Jaćimović, Full-Stack Software Engineer with strong experience in enterprise-level microservices and full-stack development. Got a challenge ❓ I’ve got the solution ✅ I specialize in designing, developing, maintaining, and optimizing high-quality software solutions that streamline processes, enhance user experience, and deliver reliable results. My focus is on building robust backend systems using the latest versions of Java and Spring Framework, often within microservice architectures integrated with Kafka and RabbitMQ, while also having solid experience with Angular and other frontend technologies. I have a proven track record in database design and optimization across PostgreSQL, MSSQL, Oracle Database, and MongoDB, as well as in CI/CD automation with Jenkins, GitLab, and code review processes using Gerrit. I am committed to delivering software that is scalable, maintainable, and user-friendly — meeting business needs with precision and efficiency, while ensuring timely delivery ⌛ and project success 🎯. Skills and technologies I work with: ✅ Java, Spring (MVC, AOP, Data, Security, Boot, Reactive…) ✅ Hibernate, Maven, Gradle ✅ Angular, TypeScript, HTML, CSS ✅ RabbitMQ, Kafka ✅ PostgreSQL, MSSQL, Oracle Database, MongoDB ✅ CI/CD (Jenkins, GitLab, Gerrit) ✅ Unit & Integration testing (JUnit, Mockito, Jasmine) ✅ REST APIs Feel free to reach out if you’d like to discuss how I can help bring your project to life.

I’m a Top-Rated (5⭐️) Full Stack Engineer with over 4+ years of experience delivering high-quality backend systems, APIs, and full-stack web applications. I specialize in Java/Kotlin with Spring Boot on the backend and Vue/Nuxt on the frontend, supported by modern DevOps and cloud-native practices. I help teams build reliable, scalable, and maintainable software systems, whether it's creating new applications from scratch or improving and refactoring existing codebases for better performance and maintainability. 🔧 My Expertise Covers 🔹 Building RESTful APIs and microservices using Spring Boot (Java/Kotlin) 🔹 Real-time web applications using WebSocket (e.g., chat, live updates) 🔹 Implementing secure authentication & SSO with OAuth 2.0 and OpenID Connect 🔹 Full-stack development with Vue.js, Nuxt.js, Tailwind CSS, and Bootstrap 🔹 Working with relational (PostgreSQL, MySQL), in-memory (Redis), and graph (Neo4j) databases 🔹 Automating CI/CD workflows using GitHub Actions and Docker 🔹 Provisioning and deploying to GCP services (Cloud Run, Cloud SQL, GCS, Cloud Tasks, Cloud Scheduler, Load Balancer) 🔹 Deploying and managing applications on Linux VPS (Ubuntu) 🚀 What I Bring 🔹 Clean, modular, and well-documented codebases 🔹 End-to-end ownership from architecture to deployment 🔹 Real-time, scalable solutions tailored to your product needs 🔹 Proactive communication and on-time delivery 🔹 Strategic insight to improve features, reliability, and scalability Whether you need a full-stack developer to take your product from idea to launch, or a backend specialist to build real-time APIs and services, I’m ready to contribute to your success. Let’s build something exceptional.

⭐⭐⭐⭐⭐ Delivering scalable, high-performance applications that are built to grow with your business. I am a Senior Java Full Stack Developer with 10+ years of experience building enterprise-grade backend systems, web applications, and scalable platforms across fintech, telecom, SaaS, healthcare, and operational domains. I specialize in Java, Spring Boot, Microservices, REST APIs, React.js, PostgreSQL, Kafka, and cloud-native architectures, with a strong focus on performance, maintainability, and clean system design. I have contributed to large-scale production systems for organizations such as Paytm and Airtel Africa, helping teams build reliable applications that serve thousands of users and business-critical operations. •Core Expertise Backend Development • Java, Core Java • Spring Boot, Spring Framework • Hibernate, JPA • REST API Development • Microservices Architecture • Kafka • WebSphere • Docker Frontend Development • React.js • Next.js • JavaScript • HTML5 • CSS3 • Tailwind CSS Databases • PostgreSQL • MySQL • MongoDB • SQLite Architecture & Integrations • Scalable System Design • API Integrations • Authentication & Authorization • Payment Gateway Integrations • Notification Systems • Third-Party Service Integrations • Performance Optimization What I Bring to Your Project ✅ Clean, maintainable, production-ready code ✅ Strong problem-solving and debugging skills ✅ Clear communication and reliable delivery ✅ Experience working in Agile development environments ✅ Focus on scalability, performance, and long-term maintainability Whether you need a Spring Boot backend, React frontend, REST API development, microservices implementation, system optimization, or full-stack application development, I can help turn your requirements into reliable, scalable solutions. Let's discuss your project and find the best approach to achieve your goals efficiently.

Profile Summary Experienced Senior Java Developer with over 11 years of expertise in designing and developing scalable, secure, and high-performance enterprise applications across healthcare, ERP, IoT, and financial domains. Specialized in microservices architecture, payment integration, RESTful APIs, and cloud-native development. Adept in Java, Spring Boot, Kafka, and PostgreSQL with a strong understanding of PCI-DSS compliance, multithreading, and real-time transaction systems.

Hello and welcome to my profile! My name is Vadym. I'm a skilled Java and Python developer from 🇺🇦 My expertise is Backend development. But also I have experience with Angular 2+. I continue to improve my skills and already know that the best way to learn something new and evolve as a professional is to work on the projects as a part of a team. My main areas of expertise: Backend: Python, Java Frontend: HTML/CSS –basic, Angular 2+ Frameworks: FastAPI, Spring Framework (SpringMVC, Spring Boot, Spring Data, Spring Security) ORM: Hibernate Testing: pytest, FastAPI TestClient, JUnit, JMeter VCS: Git (GitHub) Databases: PostgreSQL, MySQL, MongoDB, SQLite, MS SQL Server, Supabase Build automation tools: Maven, Gradle API documentation tools: OpenAPI, Swagger IDE: Cursor, PyCharm, IntelliJ IDEA Other: REST API, Lombok, Docker, Postman, Pydantic, Heroku, Stripe, Amazon APIs (general familiarity) Ready for any skills evaluation, test task, technical interview. My main goal is to find an interesting project, so if you need a talented developer with technical background let's discuss our cooperation!

𝗡𝗲𝗲𝗱 𝗮 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘄𝗵𝗼 𝗰𝗮𝗻 𝗯𝘂𝗶𝗹𝗱 𝗰𝗹𝗲𝗮𝗻, 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝘄𝗲𝗯 𝗮𝗽𝗽𝘀? I help businesses build reliable full stack web applications using Java Spring Boot, Angular, React, Python, NestJS, and TypeScript. My work focuses on clean backend architecture, secure APIs, responsive frontend interfaces, database structure, and scalable systems that are easy to maintain long-term. 𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘄𝗶𝘁𝗵: • Full Stack Web Application Development • Java Spring Boot Backend Development • Angular and React Frontend Development • Python and NestJS Backend Systems • REST API Development and Integration • MySQL and PostgreSQL Database Design • Authentication, JWT, and Role-Based Access • Admin Panels, Dashboards, and SaaS Platforms • AWS Deployment and Docker Environments • GoHighLevel CRM Setup and Automation Support 𝗖𝗼𝗿𝗲 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸: Backend: Java Spring Boot, NestJS, Python, TypeScript, REST APIs, MySQL, PostgreSQL, JWT Frontend: Angular, React, JavaScript, TypeScript, Responsive UI, Single Page Applications Infrastructure: AWS, Docker, cloud deployment, scalable application setup Automation: GoHighLevel, CRM setup, workflow automation, funnel integrations 𝗛𝗼𝘄 𝗜 𝘄𝗼𝗿𝗸: • Clean, maintainable code • Clear and proactive communication • Scalable architecture, not quick patches • Frontend and backend built with long-term product growth in mind 𝗥𝗲𝗮𝗱𝘆 𝘁𝗼 𝗯𝘂𝗶𝗹𝗱 𝗮 𝗳𝘂𝗹𝗹 𝘀𝘁𝗮𝗰𝗸 𝘄𝗲𝗯 𝗮𝗽𝗽 𝘁𝗵𝗮𝘁 𝘄𝗼𝗿𝗸𝘀 𝗿𝗲𝗹𝗶𝗮𝗯𝗹𝘆? Send me your project details and I’ll help you build a clean, scalable application with the right backend, frontend, APIs, database, deployment setup, and automation support. 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: Full Stack Developer, Java Spring Boot Developer, Spring Boot, Java Developer, Angular Developer, React Developer, Python Developer, NestJS Developer, TypeScript Developer, REST API Development, API Integration, Backend Development, Frontend Development, Web Application Development, SaaS Development, MySQL, PostgreSQL, AWS Deployment, Docker, JWT Authentication, Admin Dashboard, CRM Automation, GoHighLevel, GHL

𝐖𝐡𝐲 𝐋𝐞𝐚𝐝𝐢𝐧𝐠 𝐂𝐨𝐦𝐩𝐚𝐧𝐢𝐞𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞 𝐟𝐨𝐫 𝐓𝐡𝐞𝐢𝐫 𝟏 𝟎𝟎𝟎,𝟎𝟎𝟎 $ 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 With 12+ years mastering backend systems, cloud architecture, and API integrations, I've helped companies like Macy's, Canadian Tire, and HPE transform their technical vision into reality. Now it's your turn. Let’s kick things off with something valuable: 💥𝐅𝐑𝐄𝐄 𝐏𝐫𝐨𝐭𝐨𝐭𝐲𝐩𝐢𝐧𝐠 𝐏𝐚𝐜𝐤𝐚𝐠𝐞💥. I’ll create your first prototype 𝐚𝐭 𝐧𝐨 𝐜𝐨𝐬𝐭 to get your idea moving. Just text me! ⚙️ 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 𝐈 𝐰𝐨𝐫𝐤 𝐰𝐢𝐭𝐡 𝐝𝐚𝐢𝐥𝐲: - 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: TypeScript, JavaScript, Node.js, Java, React, NextJS, NestJS, Spring Boot, Angular.js, Vue.js - 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: PostgreSQL, MySQL, MongoDB, Redis, Elasticsearch - 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬: AWS (EKS, S3, RDS, Lambda, SQS), Docker, Kubernetes, Terraform, GitLab CI/CD, Linux - 𝐀𝐏𝐈 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬: REST, SOAP, GraphQL, OpenAPI/Swagger, Stripe, Airwallex, Routfusion, Fortress, Express, Firebase, Webhooks, JSON - 𝐒𝐭𝐲𝐥𝐞 & 𝐃𝐞𝐬𝐢𝐠𝐧: HTML5, CSS3, Bootstrap, SASS, LESS, NPM, Gulp, AJAX, Webpack - 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 & 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐏𝐫𝐚𝐜𝐭𝐢𝐜𝐞𝐬: Unit Testing (Jest, JUnit), Agile/Scrum, Git, GitFlow, Responsive Design, Mobile-First 📣 What Clients Say About Me and my team: ⭐⭐⭐⭐⭐ "Sednor Holdings Limited delivered high-quality development work on our AWS-hosted web application. Their technical expertise in both Java and React scaled the project from scratch. We’ve invested over $500,000, and I’d gladly work with them again." – 𝐂𝐡𝐞𝐭𝐭 𝐑𝐮𝐛𝐞𝐧𝐬𝐭𝐞𝐢𝐧, VP Principal Architect at Hewlett Packard Don't wait - your success story starts now. Click here and let's get started.🚀

👋 Hello! I'm Ahmed, a passionate Full Stack Developer with expertise in Java, SQL/NoSQL databases, JavaScript, and Angular. I thrive on creating seamless and dynamic web solutions, with a solid understanding of Core Java components, JavaFX, and extensive experience in web development using the Spring Framework, Spring Boot, JPA, and Hibernate. 🔧 What I bring to the table: 💻 Java Programming 🌱 Spring Framework & Spring Security ⚙️ Hibernate & JPA 🧪 JUnit 5 🐘 PostgreSQL & MySQL 🗂️ NoSQL Databases 🛠️ JavaScript & TypeScript 🎨 Angular, HTML, CSS3, SCSS 🔍 I specialize in building full REST API applications and crafting user-friendly, interactive interfaces. My goal is to not just meet your expectations but exceed them with punctuality, creativity, and dedication to delivering high-quality solutions. 💡 Ready to take your project to the next level? Let’s collaborate and create something amazing together! 🚀 Looking forward to hearing from you soon! Best Regards, Ahmed I.

Your banking system processes real money. A single bug can freeze millions in transactions. That is exactly the kind of system I have been building since 2004. I am a Senior Java Developer and Technical Lead specializing in financial backend systems — banking core, insurance platforms, capital markets clearing, and data pipelines. My code runs in production at PwC, Globant, the Mexican Stock Exchange, and multiple banking institutions across Latin America. WHAT I DELIVER • Java/Spring Boot microservices for high-volume transactional workloads • AWS cloud architecture (Lambda, EMR, Step Functions, Glue, EC2, VPC) • Database design and optimization across Oracle, Aurora, PostgreSQL, MongoDB • Technical leadership for teams of up to 5 developers • Zero-downtime deployments and production support for mission-critical systems RECENT WORK At PwC, I architect and maintain Java/Python microservices powering financial data pipelines on AWS. I design DDL schemas across Oracle and Aurora for high-volume workloads, manage containerized deployments with Docker, and configure VPC networking with enterprise-grade compliance. Every release ships on schedule with zero-downtime practices. At Globant (Jul 2019 – Feb 2024), I built Spring Boot microservices for banking clients processing high-volume transactions with strict uptime SLAs. I designed data models across Oracle, Aurora, MongoDB, and CosmosDB — selecting the right storage layer for each service's access patterns. At the Mexican Stock Exchange, I provided technical support and development for Asigna — the central clearing and settlement system for derivatives in the Mexican market. I worked with FIX Protocol for market data and trade communication. DOMAINS I KNOW DEEPLY • Banking core: treasury, money market, fund operations, electronic invoicing, bank statement processing • Insurance: policy management, claims, and appraisal systems • Capital markets: derivatives clearing and settlement (Bolsa Mexicana de Valores / Asigna) • Financial data pipelines: ETL with AWS EMR, Step Functions, Lambda, Glue These are not casual exposures. I have shipped production code in each of these domains across multiple employers and years. HOW I WORK I define clear architectural standards early, automate what can be automated, and keep the team focused on shipping. I am the person who gets called when production breaks at 2am — and I treat operational reliability as a core engineering responsibility. My process: 1. Discovery call to understand your business requirements and constraints 2. Architecture proposal with technology justification 3. Iterative delivery with weekly updates and milestone demos 4. Production deployment with monitoring and handoff documentation TECH STACK Java (SE, EE) · Spring Boot · Spring MVC · Spring Security · Python · AWS (Lambda, EMR, Step Functions, Glue, EC2, VPC) · Docker · Oracle · Aurora · PostgreSQL · MongoDB · CosmosDB · Microservices · RESTful APIs · MyBatis · Hibernate/JPA · Maven · Git · Linux · CI/CD Let's talk about your project — send me a message or invite me directly.