🚀 Experienced and dynamic Fullstack Developer proficient in Java and React, dedicated to delivering robust and scalable web applications. With a solid foundation in both front-end and back-end technologies, I thrive in creating cohesive digital experiences that exceed user expectations. 🌟 Throughout my career, I have successfully developed and deployed numerous applications utilizing Java and React. From building intricate front-end interfaces with React to architecting resilient back-end systems with Java, I have consistently delivered high-quality solutions tailored to meet diverse client needs. My experience spans across various industries including e-commerce, finance, and healthcare, providing me with valuable insights into industry-specific challenges and requirements. 💼 Technical Expertise: Java Development: Proficient in developing enterprise-level applications using Java frameworks such as Spring and Hibernate. Skilled in database management, RESTful API integration, and microservices architecture. ☕ React Development: Expertise in crafting responsive and interactive user interfaces with React.js, leveraging state management libraries like Redux for efficient data flow and component reusability. ⚛️ Fullstack Proficiency: Demonstrated ability to seamlessly integrate front-end and back-end components to create cohesive fullstack applications. Comfortable working with both client-side and server-side technologies to ensure optimal performance and user experience. 🛠️ DevOps Skills: Familiar with DevOps practices including continuous integration, deployment automation, and containerization using tools like Docker and Jenkins. 🛳️ Industry Expertise: I have collaborated with clients across various industries, including e-commerce, fintech, healthcare, and education. This diverse exposure has equipped me with a comprehensive understanding of industry-specific requirements and best practices. Whether it's optimizing checkout processes for e-commerce platforms or ensuring compliance and security standards in healthcare applications, I approach each project with tailored solutions that align with industry standards and regulations. 🏥💳 Why Me: Proven Track Record: My portfolio showcases a history of successful projects, demonstrating my ability to deliver results consistently. 📈 Collaborative Approach: I believe in fostering open communication and collaboration throughout the development process, ensuring alignment with client objectives and expectations. 🤝 Continuous Learning: I am committed to staying updated with the latest technologies and trends in the industry, enabling me to leverage cutting-edge solutions and methodologies in my work. 📚 Problem-Solving Skills: With a keen eye for detail and a proactive approach to problem-solving, I excel in overcoming challenges and delivering innovative solutions that address client needs effectively. Choose me for your next project, and together, we can build exceptional digital experiences powered by the synergy of Java and React technologies. 🚀🔥

I’m a Senior Software Engineer with strong experience designing and building scalable, cloud-native systems on AWS for startups and growing products. My strength is turning business requirements into reliable technical solutions — from early MVPs to production systems that scale without costly rewrites. What I focus on: Backend and full-stack development AWS cloud architecture (serverless & cloud-native) Scalable system design and clean APIs Performance, reliability, and cost efficiency Working closely with founders and product teams I’ve worked on financial and SaaS platforms, where reliability, security, and clear architecture are critical. I care about writing clean, maintainable code and making technical decisions that support long-term growth, not shortcuts. Clients value me for clear communication, ownership, and practical engineering decisions. If you’re looking for a senior engineer who can build, improve, or stabilize your system, I’m happy to discuss your project.

Greetings! I'm a senior web developer and certified java programmer with 20+ years of experience incorporating user and business requirements into cost-effective, secure and user-friendly solutions. I have a strong background in IT, Manufacturing & Business Process Automation, Neural Networks. I'm currently focused on full-stack software development, building projects from ground up. Technology Summary Java, J2EE, JavaScript, HTML5, Node.js, MongoDB, SQL, Linux, AWS, C++, Rust, AngularJS, React

🚀 Key Skills & Expertise ✔️ 5+ years of professional experience delivering scalable and high-quality software ✔️ Programming Languages: Java, C# ✔️ Frameworks: Spring Boot, Spring MVC, Hibernate, JPA, Thymeleaf, Angular ✔️ Front-End: HTML5, CSS3, Bootstrap, JavaScript, Angular, AJAX, TypeScript ✔️ Databases: MySQL, PostgreSQL, MongoDB ✔️ DevOps & Cloud: Docker, Kubernetes, AWS, Apache Kafka ✔️ E-Commerce Platforms: Shopify, WordPress, OpenCart 🤝 Why Work With Me ✔️ Fluent in English, German, and Bulgarian (native) ✔️ Reliable, detail-oriented, and committed to clean, maintainable code ✔️ Excellent communication and strong focus on client satisfaction ✔️ Available, responsive, and easy to collaborate with

I am Full Stack Java developer with 10+ years of experience building and integrating scalable healthcare solutions for the US market. I specialize in healthcare interoperability, connecting EHR/EMR systems using HL7 and FHIR, and designing secure, compliant data exchange architectures. I have delivered multiple healthcare integration projects involving real-time and bidirectional data exchange across systems like Epic, Cerner, Meditech, and eClinicalWorks. My work includes building interfaces using Mirth Connect, developing FHIR-based APIs, normalizing clinical data (LOINC, SNOMED, ICD), and enabling seamless interoperability across hospital systems and HIE platforms. In parallel, I design and implement AI-enabled healthcare solutions that improve clinical workflows and data usability. I have hands-on experience building AI features such as automated clinical note summarization, patient-friendly discharge summaries, and intelligent extraction of structured data from unstructured EHR notes using NLP techniques. I’ve also worked on integrating lightweight AI modules into existing applications to support decision-making, reduce manual effort, and enhance provider productivity. My AI work is focused on practical, production-ready implementations, including integrating LLM-based services via APIs, building backend pipelines for clinical data processing, and ensuring outputs are compliant with healthcare data standards and privacy requirements. I bring strong experience across the full development lifecycle, from architecture to deployment, with a focus on scalability, performance, and clean system design. Core Expertise:- -Full Stack Development: Java, J2EE, Spring Boot, Microservices -Healthcare Integration: HL7 (v2.x), FHIR APIs, EHR/EMR interoperability -Integration Engines: Mirth Connect, interface development, data mapping- AI in Healthcare:- -Clinical text summarization (SOAP notes, discharge summaries) -NLP-based entity extraction (medications, allergies, labs) -Patient data normalization and structuring -LLM/API integration for healthcare use cases -Workflow automation using AI -Cloud & APIs: RESTful services, scalable and secure architectures Healthcare Domain Experience:- -Strong understanding of US healthcare workflows including Medicare, Medicaid, and claims processing -Expertise in compliance standards: HIPAA, PPACA -Clinical coding & standards: LOINC, SNOMED, ICD-9/10 -HL7 message types: ADT, ORM, ORU, MDM, DFT -EHR/EMR Integrations Hands-on experience integrating with: -Epic, Cerner, Meditech, Allscripts, eClinicalWorks (eCW) -McKesson, Siemens, Amazing Charts -Orchard, Sorian, Opus and other hospital systems Cores skills:- -HL7 Integration -FHIR API Development -EHR Integration -EMR Integration -Mirth Connect -Healthcare Interoperability -Java -Spring Boot -Microservices Architecture -REST API Development -Epic Integration -Cerner Integration -Healthcare Data Standards (LOINC, SNOMED, ICD-10) -Healthcare NLP -AI in Healthcare -LLM Integration -HIPAA Compliance -Healthcare Data Exchange -Interface Development -Real-time Data Integration Delivered solutions including real-time data streaming, FHIR-based integrations, and embedded interoperability within clinical systems and devices.

I’m an experienced Integration Developer with over 8 years in the IT industry, specializing in API development, integration solutions, and full-stack web & mobile applications. I’ve successfully delivered scalable and secure solutions using MuleSoft, Java, and Spring Boot, and have hands-on expertise across both backend and frontend technologies. 💼 Core Skills: Integration & Middleware: MuleSoft Anypoint Platform (3.x & 4.x), API Design, RAML, CloudHub, RTF, CI/CD (Jenkins, Azure DevOps) Backend Development: Java, J2EE, Spring Boot, Spring MVC, Hibernate, Microservices Frontend Development: Angular, HTML, CSS, JavaScript Mobile Development: Android (Java/Kotlin) Other Technologies: Node.js, Python, Jasper Reports, Apache Tomcat Databases: MySQL, SQL Server, PostgreSQL, SQL Deployment & Tools: SFTP, OAuth 2.0, REST, Git, Postman, SOAP 🔧 What I Offer: End-to-end integration solutions using MuleSoft and microservices Full-stack development with Java, Angular, Node.js, and Python Android app development with robust backend integration Database design, optimization, and complex query development Clean, maintainable code and proactive communication I’m passionate about building efficient, reliable systems and am open to both short-term and long-term Upwork engagements. If you're looking for a versatile developer who can handle both integration and full-stack tasks, let’s connect!

Full-Stack Engineer who builds scalable web apps that hold up in production — Angular & React on the front, Java Spring Boot & Python (Django/Flask) on the back. 100+ projects delivered, 0 missed deadlines. WHAT I BUILD → Enterprise-grade REST APIs and microservices with Java Spring Boot → Dynamic, responsive front-ends with Angular and React → Lightweight Python backends with Django and Flask → Automated web scrapers that extract, clean, and deliver structured data at scale → Database design & optimization — PostgreSQL, MySQL, MongoDB TECH STACK Frontend: Angular | React | JavaScript (ES6+) | HTML5 | CSS3 Backend: Java Spring Boot | Python Django | Flask Databases: PostgreSQL | MySQL | MongoDB Scraping: BeautifulSoup | Selenium | Scrapy | Playwright Tools: Git | REST APIs | Docker | Postman HOW I WORK I don't just write code — I ask what the feature is actually for before touching a keyboard. That means fewer revisions, cleaner architecture, and software that solves the real problem, not just the surface one. You get: ✔ Clean, documented, maintainable code ✔ Regular updates — you'll never be left wondering where things stand ✔ Honest timelines — I'd rather under promise and overdeliver ✔ A developer who thinks about your business, not just the ticket GOOD FIT FOR - SaaS platforms and internal tools - REST API development and third-party integrations - Data scraping pipelines and automation - Full-stack builds from MVP to production - Migrating or refactoring legacy systems If you're building something and need a developer who gets it done cleanly — send me the brief.

I help businesses build, scale, and modernize enterprise portal and backend solutions using Liferay DXP, Spring Boot, and Java and integrate AI capabilities that make those platforms smarter and more automated. 100% Job Success Score. Top Rated. 15 completed projects. 7,800+ hours delivered. I don't just write code. I architect solutions that last. ★★ Why Clients Choose Me ★★ ✔ End-to-end ownership from requirement analysis to deployment and maintenance ✔ Clean, modular, well-documented code built for long-term maintainability ✔ Experienced as Developer, Architect, and Team Lead in agile environments ✔ Strong communicator who keeps projects on track and clients informed ✔ Equally effective working independently or leading a team 🤖 AI & Modern Integration Clients increasingly need AI built into their existing systems not as a separate tool, but woven into their portals, workflows, and APIs. I deliver that: ✦ LLM Integration: OpenAI (GPT-4o), Claude (Anthropic), Google Gemini via REST APIs ✦ RAG Pipelines: context-aware AI assistants using LangChain, LlamaIndex, and vector databases (Pinecone, Weaviate, pgvector) ✦ AI-Powered Search: semantic search and intelligent recommendations via Elasticsearch + embeddings ✦ Workflow Automation: integrating AI into Spring Boot microservices for document processing, classification, and business automation ✦ Chatbot Development: intelligent support and internal bots for enterprise portals ✦ Prompt Engineering: production-safe, reliable prompt design for real business use cases ☕ Java / Spring Boot ✦ Spring Boot 3.x, Spring Framework 5.x, Spring Security, Spring Data JPA ✦ Microservices architecture, REST & SOAP APIs ✦ RabbitMQ, Kafka for async messaging ✦ Hibernate/JPA, Maven, Gradle ✦ Databases: MySQL, PostgreSQL, Oracle, MongoDB, Cassandra 🌐 Liferay DXP Expertise With deep hands-on experience across Liferay 5.x through 7.x/DXP, I cover the full lifecycle: ✦ Portlet, Hook, Theme, and Extension development ✦ Liferay DXP environment setup, performance tuning, and clustering ✦ SSO integration, LDAP, CAS, Keycloak ✦ Elasticsearch integration and workflow management ✦ Version migrations and upgrades (5.x → 6.x → 7.x/DXP) ✦ Payment gateway integration (Stripe, Authorize.net, BillDesk) ✦ Content management and enterprise portal solutions ☁️ DevOps & Cloud ✦ AWS (EC2, S3, Lambda, RDS) ✦ Kubernetes, Docker, Jenkins CI/CD ✦ Cloud Foundry ✦ Git, SVN. version control and branching strategies ✦ Splunk monitoring with DB Connect and Active Directory LDAP 📱 Android Development (Java & Kotlin) ✦ REST/SOAP web services, JSON/XML parsing ✦ Messaging: Twilio, XMPP, QuickBlox, OpenFire ✦ Social integrations: Spotify, Facebook, Instagram, SoundCloud ✦ Maps: Google Maps, Mapbox, GPS ✦ Payments: Stripe, Authorize.net, BillDesk 🛠 Full Tech Stack Languages: Java, Kotlin, JavaScript, TypeScript Frameworks: Spring Boot, Hibernate, React.js, Angular AI/ML: LangChain, OpenAI API, Claude API, vector databases, RAG pipelines Cloud: AWS, Kubernetes, Jenkins, Cloud Foundry Databases: MySQL, PostgreSQL, Oracle, MongoDB, Cassandra Tools: Git, Maven, Gradle, Eclipse, JIRA 📌 Notable Projects ✦ Built a music social network with stories, followers, and deep API integrations Spotify, Apple Music, YouTube, Facebook, Instagram ✦ Led a cross-functional agile team across native and backend development, reporting directly to product executives ✦ Architected and delivered enterprise portal solutions for large organizations on Liferay DXP ✦ Implemented Splunk enterprise monitoring with DB Connect and Active Directory LDAP ✦ Delivered full-stack AI integration projects connecting LLMs to existing Java/Spring Boot backends Let's talk about your project. Whether you need a robust backend API, a Liferay portal built or migrated, or an AI feature integrated into your existing system, I deliver on time, with clear communication throughout. Message me and let's get started.

-------------------------------------------🟢𝐀𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞 𝐍𝐨𝐰🟢------------------------------------------- Greetings, I am a Certified Backend Developer with over 8 years of experience, in enterprise-level application development, often under tight deadlines. My journey is anchored in developing robust backend systems using the Spring Framework, PHP Core or Python. 🌟 My Specialization 🌟 ✅ Python Spark, Flask, Django & FastAPI Frameworks ✅ DBT core & Databricks Workflows ✅ Java EE Family: EJB, JPA, Hibernate,Servlets, RESTful Services (JAX-RS), SOAP Services (JAX- WS), Apache CXF & Bean Validation. ✅ JAVA Spring Frameworks: SpringBoot, Spring Core, Spring Batch, Spring Data, Spring Cloud ✅ SQL Databases: SQL Server, MySQL, PostgreSQL, MariaDB & Oracle ✅ NoSQL Databases: Dynamo & MongoDB ✅Hands-on design, development, implementation, and optimization of the application. ✅Use Object-oriented techniques and Software engineering best practices including Design review, Code review, and Code re-factoring. ✅Experienced with the full Software development life cycle (SDLC) including - Requirement gathering - Prototyping (Design, Development & Debugging) - Testing and - Deployment 🌟 WHY CHOOSE ME OVER OTHER FREELANCERS? 🌟 ✅ Quality-Oriented: I focus on providing VALUE to all of my Clients and Earning their TRUST. Delivering with quality is the key to gaining trust, and that's where I put my core focus. ✅ Over-Delivering: This is core to my work as a Freelancer. My focus is on GIVING more than what I expect to RECEIVE. I take pride in leaving all of my Clients saying "WOW." ✅ Adaptive to changes: During Software Development Lifecycle, it is highly likely some changes might be needed. I understand this and open to any changes. The end goal is to make my client achieve his target, and the objective is to make his/her business more profitable. ✅ Responsiveness: Being extremely responsive and keeping all lines of communication readily open with my Clients. ✅ Respect: Self-respect is everyone's right. I belong and thrive in a work culture where everyone's self-respect is of utmost importance. Maintaining relations with my clients to boost their self-respect is one of the core offerings that I can offer here. If you seek an unwavering professional with a penchant for perfection and a relentless commitment to innovation, let's join forces to breathe life into your vision. Together, we can catalyze the true potential of the digital landscape.

Java · React · AWS · AI — Full stack engineer who ships end-to-end. 7+ years building fintech, risk/compliance, and SaaS platforms that handle real users at scale. Most projects fail because you need one person for the backend, another for the frontend, another for cloud, and nobody talks to each other. I replace that with one senior engineer who owns the full delivery — architecture to deployment. What clients hire me for: → Backend systems — Java/Spring Boot microservices, REST & GraphQL APIs, Kafka event pipelines, secure authentication. I've built enterprise compliance platforms serving 50+ organizational workflows. → Frontend & mobile — React, Next.js, React Native/Expo apps. I built a cross-platform fintech product (desktop + mobile + web) from a single TypeScript monorepo. → Cloud & DevOps — AWS and GCP architecture, Docker, Kubernetes, CI/CD pipelines. I've set up infrastructure with CDK/Lambda/Cognito that auto-scales and costs pennies at low traffic. → AI integration — LLM-powered features, AI agents, RAG pipelines, and automation workflows plugged into real production systems. Not chatbot demos — working AI inside shipping products. I also work with: Kotlin, Node.js, Angular, Astro, Tailwind, ShadCN, PostgreSQL, MySQL, MongoDB, DynamoDB, gRPC, WebSockets. Oracle Certified. Clean code. Fast replies. I deliver on time and explain things clearly — whether you're a CTO or a non-technical founder. What are you building? Let's talk.