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👋 Hello, I'm Kashaf Shanawar! I’m a passionate Java & Angular Developer with expertise in building dynamic, scalable, and high-performing web applications. With over 2 years of hands-on experience, I specialize in designing and developing full-stack applications with robust Java Spring Boot backends and interactive Angular frontends. 💡 What I Offer: ✅ Full-Stack Development – Expertise in Java Spring Boot and Angular, ensuring seamless integration between backend and frontend. ✅ API Development & Integration – Proficient in creating and securing RESTful APIs. ✅ Database Management – Experienced with MySQL, PostgreSQL, and MongoDB for efficient data storage and retrieval. ✅ Authentication & Security – Implementing Spring Security & JWT for secure applications. ✅ Microservices Architecture – Developing scalable and distributed systems with Spring Boot microservices. ✅ Trading Systems Development – Worked on real-time trading platforms integrated with stock exchanges, handling market data, FIX protocols, and order management systems (OMS). 🛠 Tech Stack: Backend: 🔥 Java (JDK 8, 11, 17, 21) | Spring Boot | Spring Security | Hibernate (JPA) | REST APIs | Microservices | Kafka Frontend: ⚡ Angular | TypeScript | JavaScript | HTML5 | CSS3 Database: 📌 MySQL | PostgreSQL | MongoDB Tools & Platforms: 🚀 Git | Jira | Postman | Docker 💼 Work Experience: 🔹 Java Angular Developer | Softech Systems Limited (2023 – Present) Building scalable Java Spring Boot applications with REST APIs & microservices. Developing real-time trading platforms with Pakistan Stock Exchange (PSX) & Ghana Stock Exchange integration. Enhancing Order Management System (OMS) and implementing STOP/LOSS trading functionalities. Revamping the trading terminal using Angular for a smoother user experience. 🔹 Full Stack Java Angular Intern | Zin Technologies (2023) Developed full-stack applications with Java Spring Boot, Angular, and MySQL. Worked in Agile environments with Git and Jira for project management. 🔥 Why Hire Me? ✔ 100% Client Satisfaction – I prioritize delivering high-quality, well-structured, and efficient code. ✔ Deadline-Oriented – I ensure timely delivery while maintaining excellent code quality. ✔ Strong Problem-Solving Skills – I love challenges and always find innovative solutions. ✔ Effective Communication – Clear, proactive, and transparent communication for seamless project execution. ✔ Continuous Learner – Always eager to explore the latest technologies and best practices. 📩 Let’s Work Together! Looking for a reliable, detail-oriented, and skilled full-stack developer to take your project to the next level? Let's discuss how I can help! 📨 Message me now, and let's build something amazing together! 🚀

Full Stack Java Engineer with 5+ years of experience building scalable, production-grade systems for logistics, food delivery, and enterprise platforms. I specialize in Spring Boot microservices architecture and AI-powered backend systems — designing end-to-end solutions that handle high traffic, complex workflows, and real-time data processing. My background in logistics technology means I understand not just the code, but the business operations behind it. What I bring to your project: - AI integration using OpenAI, Gemini, and LangChain4j for intelligent automation and chatbot backends - Microservices architecture with Spring Boot and Spring Cloud - Event-driven systems using Apache Kafka and RabbitMQ - Full stack development with React.js and Vue.js frontends - REST API design, development, and third-party integrations - AWS infrastructure — EC2, RDS, S3, deployment pipelines - Database design and optimization across MySQL, PostgreSQL, and Oracle - JWT-based authentication and Spring Security - Legacy system migrations and monolith-to-microservices transitions - Docker, CI/CD pipelines, and production deployment I have built and maintained systems processing hundreds of thousands of records daily — including a 2.5-year long-term engagement delivering a full-stack logistics and food delivery platform on AWS, earning a 5.0 rating across every review. I do not disappear after handing over code. I ask the right questions before starting, communicate clearly throughout, and flag issues before they become problems. Clients who work with me once tend to come back. 100% Job Success Score across every contract on Upwork. If you need a reliable full-stack engineer who builds intelligent, scalable systems — let's talk.

I help businesses build scalable, secure, and production-ready backend systems using Java, Spring Boot, Microservices, Kubernetes, AWS, and AI-powered integrations. With 10+ years of experience as a Principal Software Engineer and Software Architect, I specialize in designing high-performance enterprise applications, secure APIs, cloud-native systems, and distributed microservices architectures. Most applications don’t fail because of features, they fail because the backend cannot scale, integrations become unstable, deployments are difficult, or systems become hard to maintain. That’s where I can help. 💼 What I Can Help You With ✔️ Spring Boot & Microservices Architecture ✔️ REST & SOAP API Development and Integrations ✔️ Kubernetes & Docker-based Deployments ✔️ AWS Cloud Deployments & Backend Infrastructure ✔️ Secure Authentication & Spring Security ✔️ PKI & Digital Signature Solutions ✔️ AI-powered Integrations & Automation ✔️ System Refactoring & Performance Optimization ✔️ Enterprise Workflow Automation ✔️ Scalable Distributed Systems Design ⚙️ Backend & Cloud Expertise 🔹 Java, J2EE, Spring Boot, Spring MVC 🔹 Spring Security, Hibernate, JPA 🔹 Microservices & Distributed Systems 🔹 Docker & Kubernetes 🔹 AWS Cloud Deployments 🔹 CI/CD Concepts & Backend Automation 🔹 SQL Server & Database Optimization 🔹 REST APIs & SOAP Services 🔹 React JS & Angular (Full-stack support when needed) 🤖 AI & Modern Systems 🔹 AI-powered workflow integrations 🔹 OpenAI/API-based intelligent automation 🔹 AI-assisted backend systems 🔹 Secure AI integrations for enterprise applications 🔹 Scalable AI-enabled microservices architectures 🔐 Security & Enterprise Systems 🔹 PKI-based Digital Signature Systems 🔹 Authentication & Authorization Flows 🔹 Enterprise-grade secure APIs 🔹 Role-based access systems 🔹 Secure transaction processing 💡 Why Clients Work With Me ✔️ 10+ years of real enterprise experience ✔️ Strong architecture and problem-solving skills ✔️ Focus on scalable and maintainable solutions ✔️ Production-ready code quality ✔️ Clear communication and ownership mindset If you need someone who can quickly understand complex systems and deliver reliable backend solutions with modern cloud and AI integrations, I’d be happy to help.

I am a Senior Software Engineer with over 9 years of industry experience. As a Fullstack Developer with a strong focus on backend development, I bring broad expertise across backend, frontend, DevOps, and system design. I am proficient in Java and experienced with Spring Boot, Spring Cloud, Spring AI, Hibernate, JUnit, Mockito, K6, Thymeleaf, React, Vue, Angular, Tailwind, Bootstrap, Docker, Kubernetes, Helm, GCP, AWS, Azure, and VPS. I have worked extensively with various servers and databases, including Postgres, MySQL, Oracle DB, SQL Server, MongoDB, Redis, Elasticsearch, Sqlite, BigQuery, Tomcat, Jetty, Undertow, Netty, Nginx, Apache, Node, ActiveMQ, RabbitMQ, Kafka, PubSub, Apollo, Keycloak, LDAP, Eureka, Consul, Vault, Sleuth, Minio, Alfresco, and Jenkins. My toolset also includes GitHub, GitLab, BitBucket, Jira, Redmine, Trello, Notion, Figma, SSH, TMux, Git, NVim, VSCode, Cursor, Windsurf, IntelliJ, DBeaver, Insomnia, and Chrome. The most common projects I work on include API services, web applications, and enterprise applications, leveraging architectures such as monolith, modulith, and microservices. I am experienced with multiple communication protocols, including REST, GraphQL, SOAP, gRPC, JSON-RPC, XML-RPC, WebSocket, Webhooks, Polling, and OpenAPI. I am open to discussions and project collaborations. Feel free to connect and hire me. Thanks & Warm Regards,

Oracle certified associate, java 8 programmer I Over 13+ years, I have developed a wide range of web applications using Java, J2EE, JSF, Primefaces, Struts, LDAP, maven, Spring, Spring-boot, Spring-data, Spring-JPA, Hibernate, GWT, Oracle, MySql, Weblogic, Tomcat, WildFly/Jboss, PHP. My core competency lies in complete end-end management, I am seeking opportunities to build products from the ground up for you.

🥇 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