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Full Stack Developer focused on building practical, user-centered technology. Experienced in creating complete web solutions from responsive interfaces to scalable backend systems. I am a dedicated full stack developer with strong skills in both front-end and back-end development. I build responsive and user-friendly interfaces using HTML, CSS, JavaScript, and React, while developing efficient backend systems with Node.js, Express, and Python. I also work with databases such as MySQL and MongoDB to ensure reliable communication between the client and the server. Over the years, I have completed more than fifty real-world projects, including a school website, a student database, and an online registration system. My work reflects a strong commitment to clean code, logical problem-solving, and building technology that genuinely serves people. I am also exploring artificial intelligence and machine learning, with the goal of applying them to meaningful, community-driven solutions.

🚀 AVAILABLE FOR JAVA / SPRING BOOT | AWS CLOUD ENGAGEMENTS With over 8 years building backend systems as a Senior Java Developer, I solve complex technical challenges across the full stack from microservices to cloud-native infrastructure. Whether it's designing Spring Boot services, architecting AWS environments, or setting up DevOps pipelines, I bring the expertise that every Java Developer must have, combined with the cloud and infrastructure skills that modern systems demand. 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗕𝗮𝗰𝗸𝗴𝗿𝗼𝘂𝗻𝗱: ➡ Over 8 years as a Java Developer in end-to-end software development across the full delivery cycle. ➡ Designing Spring Boot microservices and high-performance Java applications for fintech, healthcare, SaaS, and e-commerce as a Java Backend Develope and now extending that into cloud engineering and DevOps. ➡ AWS Cloud Engineer - EC2, S3, Lambda, SQS, SNS, IAM, API Gateway, CloudFormation. I design and run cloud infrastructure, not just deploy to it. ➡ DevOps & CI/CD - Docker, Kubernetes (K8s), Helm, Terraform, Jenkins, Azure DevOps, OpenShift. Working with both AWS DevOps and Azure DevOps pipelines that ship code reliably. ➡ Network engineering in cloud environments ➡Over 20 completed projects as a java software engineer 𝗟𝗲𝗮𝗱𝗲𝗿𝘀𝗵𝗶𝗽 𝗮𝗻𝗱 𝗙𝗼𝗰𝘂𝘀: ➡ Led cross-functional teams as a Senior Java Developer, delivering clean architecture and scalable cloud-connected solutions. ➡ Guided developers in Spring Boot, Java, and React as a lead Java Backend Developer, maintaining enterprise-grade quality standards. ➡ Consistently raised team output by implementing the best practices any Senior Java Developer is expected to own. 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐢𝐧𝐠 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬 & 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬 As a Java Backend Developer I work with: ✅ Languages: Java, Java 8, Java 11, Java SE, Java EE, JavaFX, SQL, JSON, XML, YAML, Python ✅ Frameworks: Spring (Spring Boot, Spring MVC, Spring Data, Spring Cloud, Spring Security, Spring AOP, Spring Batch, Spring WebFlux), Hibernate, JPA, Quarkus, React, Node.js As a Senior Java Developer, I use these to build enterprise applications that are maintainable, scalable, and secure. 𝐂𝐥𝐨𝐮𝐝, 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 ✅ AWS Cloud Engineer: EC2, S3, SQS, SNS, Lambda, IAM, RDS, API Gateway, CloudWatch, CloudFormation ✅ Azure Cloud Engineer: Azure DevOps, Azure Kubernetes Service ✅ Google Cloud Engineer: GCP core services ✅ Kubernetes, Helm, Docker, Terraform, Jenkins, Maven, Gradle, Git (GitLab, Bitbucket) ✅ AWS DevOps & Azure DevOps pipelines, OpenShift, Infrastructure as Code 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬 & 𝐌𝐞𝐬𝐬𝐚𝐠𝐢𝐧𝐠 ✅ MySQL, PostgreSQL, MongoDB, Redis, DynamoDB ✅ Kafka, RabbitMQ, REST APIs, SOAP, gRPC, WebSockets 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐚𝐥 𝐏𝐚𝐭𝐭𝐞𝐫𝐧𝐬 & 𝐏𝐫𝐢𝐧𝐜𝐢𝐩𝐥𝐞𝐬 ✅ Architectures: Microservices, Event-driven, SOA, Monoliths ✅ Patterns: CQRS, Saga, Circuit Breakers, Service Discovery, Distributed Systems ✅ Principles: SOLID, Clean Code, Domain-Driven Design (DDD) A Java Developer must master these to deliver systems that scale that's what I build every day. 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐏𝐫𝐚𝐜𝐭𝐢𝐜𝐞𝐬 ✅ Testing: JUnit, Mockito, TestNG, Unit & Integration Testing ✅ Methodologies: Agile (Scrum, Kanban), TDD, BDD ✅ Version Control: Git, GitLab, Bitbucket My workflow as a Senior Java Developer runs on Agile principles and a test-first mindset, producing applications that are production-ready from day one. 𝐀𝐫𝐞𝐚𝐬 𝐨𝐟 𝐀𝐜𝐭𝐢𝐯𝐢𝐭𝐲 Backend development • Full-stack development with Spring Boot + React • AWS cloud engineering • Azure cloud engineering • Google cloud engineering • DevOps & CI/CD • Network engineering • API integration • Cloud-native applications • SaaS platforms • Android Java development As a Senior Java Developer and aws cloud engineer, I cover the full path from backend code to cloud deployment. 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 During my career as a Java Backend Developer I've worked across: Fintech • Healthcare • E-commerce • Enterprise Applications • Cloud Computing • Telecommunications • Logistics • Travel & Hospitality • Media • Automotive • Blockchain • IoT • SaaS • Retail 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐚𝐭𝐢𝐨𝐧𝐬 & 𝐑𝐨𝐥𝐞𝐬 ✔ Senior Java Developer ✔ Java Spring Boot Developer ✔ Java Backend Developer ✔ AWS Cloud Engineer / AWS DevOps Engineer ✔ Azure Cloud Engineer / Azure DevOps ✔ Google Cloud Engineer ✔ Kubernetes & Network Engineer ✔ API Developer ✔ Full-Stack Developer (Spring Boot + React) ✔ Android Java App Developer 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 ✔ Java Development Services ✔ Spring Boot Microservices Development ✔ AWS Cloud Engineering & Migration ✔ AWS DevOps / Azure DevOps Pipeline Setup ✔ Kubernetes Cluster Management ✔ Infrastructure as Code (Terraform) ✔ API & System Integration ✔ SaaS Application Development ✔ Android Java App Development ✔ Performance Tuning & Code Reviews 👉 Need a Java Developer who writes clean code and ships it to the cloud? Just drop me a message 04/06/2026

A top-rated expert in crafting end-to-end AI solutions, from UI design to deployment, that are beautiful, robust, scalable, and cost-effective. I work at the intersection of AI Agents, CRM Systems, AI Automation, Web and Mobile App Development, Product Design, and Cloud Infrastructure. Helping startups launch fast and established teams save time and cost. 🚀 What I'm Best At: 🔹 AI Agents and Automations using Claude Code, n8n, GoHighLevel (GHL), chatbots and voice agents: 🎤 Voice Bots: Retell, Vapi, Twillio, ElevenLabs, Telnyx, and more 🗣️ Chatbots: Custom Bots, Wordpress, Shopify, Vapi, Rasa, ChatterBot, Amazon Lex, and more 🧠 Automation & Integration: Claude Code, n8n, Zapier, Make 🔍 Vector Databases for RAG: Chroma, Pinecone, Qdrant, pgVector 📣 Lead Generation, Outreach and Automation Systems 📦 Other: GoHighLevel integration, Social Media Automation, Video Generation automation, Blog Generation Automation, Custom Business Processes Automations, Document conversion to Audiobook, Offline form docs to Live Surveys, Creating Social Media Posts from Documents 🔹 Full Stack Web App Development: 🔧 UI/UX Design: Figma, Prototyping, Web Accessibility 🖥️ Frontend Development: Next.js, React, Angular, Vue, Vaadin 💻 Backend Development: Node.js, NestJS, Java (8–20+), Kotlin, Python 🐍 Python Frameworks: Flask, FastAPI ⚙️ Java Ecosystem: Spring Boot, Spring MVC, Spring Security, Spring Data JPA, Spring Cloud, Spring AI, Micronaut, Hibernate, Apache Camel, Apache Kafka, Keycloak 📦 Other: Ktor, JavaFX 💾 Databases: MySQL, PostgreSQL, MongoDB, IBM DB2, Oracle, MariaDB 🔧 Tools: JDBC, Maven, Gradle, XSL, JSTL, JSP 📊 Observability: Elastic Stack, Prometheus, Grafana, Logstash, Kibana, Datadog, Loki, Jaeger, AWS CloudWatch ✅ Software Testing: Playwright, Selenium, Cypress, Jest, Vitest, JUnit, Mockito, Cucumber, Selenium, Concordion ☁️ DevOps & Cloud: AWS, GCP, Docker, Kubernetes, Bash, Shell, Ansible, Terraform, Chef, CloudFormation, Jenkins, GitLab CI, Pulumi (IaC) 🔹 Mobile App Development: 📱 Frameworks: Flutter/FlutterFlow/Dart, React Native, Expo, Android and iOS native bridging 🔒 Authentication & Notifications: Firebase Auth, Push Notifications, FCM, 💾 Offline & Real-Time: Offline Support, Real-time Sync, Secure Storage 🔹 Why Choose Me: › I treat client success as my own, caring for their project like it's my own › Excellent and Bilingual English communication: I understand your requirements completely, and can communicate clearly, and I make sure to keep you updated › Dedicated to clean, beautiful work: Well-documented work that any new dev can jump on, and has a low maintenance cost. › AI-embedded workflow: I extensively use an AI-first approach. This reduces cost and time to ship, giving me the edge over traditional dev shops 💪 Proven Success: I'm happy to connect you with one of my previous clients on a live call, who can personally vouch for the value I delivered. 🔹 Let’s Talk Do you need: - An AI system to automate your business processes to save costs and time - To develop a web app or mobile app MVP you can sell as a SaaS product - To modernize your existing Enterprise app with AI features - A high-converting Shopify store You are welcome to click the "Invite" button, or just send me a message : )

Are you tired of working with developers who don't understand project scope, produce messy code, or consistently miss deadlines? I can help you stay on track and within budget with my clean code, strong communication skills, and commitment to meeting deadlines. As a Full-Stack Developer, I am experienced in both front-end and back-end development. I can manage back-end services and ensure smooth data exchange between the server and users. I can also develop and code all server-side logic and respond to requests from front-end developers. My expertise in object-oriented programming, understanding of MVC design patterns, and familiarity with front-end technologies like HTML5, JavaScript, and CSS3 make me well-equipped to handle your project. Some of my capabilities include: - Analyzing website and application requirements - Writing back-end code and building efficient back-end modules - Developing back-end portals with optimized databases - Troubleshooting code and application issues - Integrating data storage solutions - Finalizing back-end features and testing web applications - Updating and improving application features for better performance I also have a wealth of knowledge and experience, including: - Proficiency with Node web frameworks like Express and Koa - Proficiency with Python web frameworks like Spring - Familiarity with front-end technologies like CSS3, JavaScript, and HTML5 - Understanding of object-oriented programming - Experience creating scalable applications - Proficiency with code versioning tools like Git, Mercurial, CVS, and SVN - Proficiency with code deployment tools like CI/CD and Docker - Experience with SQL/NoSQL databases - Project management skills - Strong problem-solving abilities

Engineer 7+ years with AI mind set delivering growing and long-term products for clients across the US, Israel, Japan... across domains like eCommerce, Fintech systems, adTech platforms, and enterprise web integrations. • Enterprise Systems: Role-based, Tenant-based systerm, Authentication follow, Design system,.. • eCommerce: Product catalogs, checkout + order flows, inventory sync,... • AdTech: Campaign builders, analytics dashboards, API integrations,... • Web Integration: Payment integration, Twilio, Firebase, Google APIs, legacy system migration,.. BACKEND: Java 11–25 · Spring Boot 2 & 3 & 4 · Kotlin · TypeScript · NestJS · Quarkus · Microservices · REST API · Firebase FRONTEND React.js · Angular · Vue.js · TypeScript · JavaScript · HTMX AI FIRST NATIVE Claude · Codex · windsurf DATABASE & MIGRATIONS PostgreSQL · MySQL · MongoDB · Liquibase · Flyway SECURITY & DEVOPS OAuth2 · Keycloak · SonarQube · Docker · GitHub Actions · CI/CD THIRD-PARTY INTEGRATIONS Stripe · PayPal · Myfatoorah · Twilio · Telnyx · Google APIs · Firebase API · Algolia Search · reCAPTCHA 100% Job Success Long-term client relationships End-to-end ownership from dev → test → deploy. Let's discuss your project.

🥇 Top-Rated Java Expert | 6+ Years Experience | 100% Job Success I specialize in Java backend development and microservices architecture, delivering scalable, high-performance, and reliable solutions for clients across the globe. I also leverage AI-assisted coding tools (Cursor AI, EasyCode) to accelerate development, ensure clean code, and reduce bugs, giving you faster and smarter results. Why Clients Choose Me ⭐ Top-Rated Freelancer on Upwork 🌍 Worked with clients in USA, Canada, Romania, UAE, India 💯 100% Job Success Score — quality, commitment, and clean code guaranteed 📈 Long-term clients, repeat hires, and glowing reviews Client Testimonials "Fantastic communication. Very fast work. Willing to hop on a google meet session at any time to get more details on the project. I will work with Ahmed again in the future. He completed the job on time and addressed every issue along the way. Absolutely a Great Person to Work With" — Josh, USA “The best Java tutor! Breaks down all problems very clearly. Doing LeetCode together!!!” — Wilson, Canada “Ahmed is a good professional. We had great conversations and worked together to fix the issue.” — Dragos, Romania “Outstanding job helping me set up a Java Spring Boot web service. Highly recommended!” — Singh, India Tech Stack & Expertise Backend Development ☕ Java (All versions), Kotlin 🔐 Spring Framework (Spring Boot, Spring Security, Spring Batch) 🛠️ Microservices Architecture – design, deployment, optimization 🌐 RESTful APIs – scalable, high-performance, secure 📡 Messaging – Apache Kafka, RabbitMQ Databases 💾 SQL – MySQL, PostgreSQL, Oracle 💾 NoSQL – MongoDB, Cassandra AI-Assisted Development 🤖 Use Cursor AI & EasyCode for code completion, refactoring, and bug detection 🚀 Accelerates development and ensures high-quality, maintainable code DevOps & Tools ⚙️ Docker, Kubernetes, Maven, Gradle, Git, SVN, Splunk 🧪 Testing – JUnit, Mockito, TestNG, Selenium Frontend (Optional) 🎨 Angular, HTML5, CSS3, Bootstrap Services I Offer ✅ Java & Kotlin Backend Development (Spring Boot, Microservices, Kafka) ✅ AI-Assisted Coding – Accelerate development, debug, and maintain high-quality code ✅ API Development & Integration – Secure, scalable REST APIs ✅ Database Design & Optimization – SQL & NoSQL ✅ System Architecture & Cloud-Native Solutions ✅ Technical Consulting & Legacy System Modernization ✅ Java/Kotlin Tutoring – Algorithms, DSA, LeetCode, Interview Prep Availability 📆 Open to part-time & full-time projects 💬 Fast response, flexible with your time zone