As an Oracle APEX developer with several years of experience, I specialize SQL, PL/SQL, and optimization. My skills extend to working with Oracle and MySQL databases and integrating APIs with Oracle APEX. In addition, I am familiar with other programming languages like Java, C/C++, PHP, JavaScript, HTML, CSS, jQuery, and AJAX. I have experience working with Amazon AWS, including EC2 Cloud, RDS, S3, Cognito, Route53, and Lambda. I am also knowledgeable in database design and monitoring, and routinely perform maintenance tasks to ensure optimal performance. I have also integrated various APIs with Oracle and Oracle Apex, such as Twilio, Zoom, GoToMeeting, Instamed, and Heartland. I have created custom plugins for oracle apex to implement new features and monitored databases from day-to-day. I have collaborated with teams of developers and temporary resources to deliver quality software products that meet client requirements and deadlines. Additionally, I worked on Oracle Forms to Oracle APEX conversion project, where I worked on creating Oracle Apex aplication and replicating the pages and forms and triggers and actions by analyzing the xml exports from Oracle Forms applications and manually replicating them (or creating Identical/as similar as possible - pages, reports, forms and grids) in Oracle APEX Currently, I am working on an international admissions solution for institutions in the US to manage the admission of international students, as well as an electronic health records project that provides a comprehensive solution for various healthcare requirements. Through these experiences, I have developed strong communication and teamwork skills that allow me to work effectively with individuals from diverse backgrounds and skill sets.

Struggling to scale your business platform or launch a secure, AI-powered web application? With 14+ years of experience and a TOP-RATED PLUS status, I specialize in transforming complex business requirements into scalable, high-performance digital products. My goal is simple: to build software that drives your revenue, not just code that runs. I specialise in taking ideas from requirements → clean architecture → production-ready delivery, whether you’re building: ➤ SaaS dashboards / admin panels ➤ Booking & scheduling platforms ➤ eCommerce & payment flows ➤ Internal tools, CRMs, and workflow automation ➤ AI-powered features (chatbots, knowledge search, summarisation, content generation) 🌟 Why clients partner with me ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ ✔ **100% Job success score**: A proven track record of excellence. ✔ **Business-first mindset**: I help identify features that truly matter for your ROI. ✔ **Transparent Communication**: Fluent English and regular updates. ✔ **High-quality Standards**: Clean, modular code and rigorous testing. 💻 Expertise in Modern Tech Stack ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ ● **Frontend**: React 19 (Server Components), Next.js, Angular 18+, TypeScript. ● **Backend**: Node.js (Microservices), Java 21+ (Spring Boot 3.x), Hibernate. ● **Database**: PostgreSQL, MongoDB, Firebase, Supabase, NoSQL. ● **AI Integration**: OpenAI API, Vector Databases, AI Agent orchestration. ● **Mobile**: Ionic, Capacitor, PWA (Progressive Web Apps). ● **Cloud/DEVOPS**: AWS (Lambda, S3, EC2), CI/CD, Docker, Kubernetes. 🛠 Expertise that delivers results ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ ➤ **Enterprise SaaS & eCommerce**: Building high-conversion platforms with complex payment gateways. ➤ **Business Automation**: Custom booking systems and CRM tools that eliminate manual overhead. ➤ **Performance Optimization**: Reducing load times and improving Core Web Vitals. ➤ **Cloud-native Architecture**: Designing secure, serverless systems that scale automatically. "I don't just finish a job; I ensure the product wins in the market." READY TO BRING YOUR VISION TO LIFE? Click the "Message" or "Invite" button. Let’s hop on a 15-minute discovery call to discuss your project goals and how I can help you achieve them.

🚀 Full Stack Developer with 10+ years of experience in Ruby on Rails, React, and AI integrations, building scalable FinTech, SaaS & HealthTech platforms trusted by startups and enterprises worldwide. 💰 $1B+ in revenue generated and saved for FinTech and HealthTech clients through optimized backend architecture and automation. 🚀 Delivered 100+ successful projects with 5⭐ feedback across SaaS, Banking, Healthcare, and Real-time platforms. 🌟 Top Rated Plus Full Stack Web & SaaS Developer on Upwork 🏅🏅🏅 🌟 Top 1% Ruby on Rails & React Developer 🌟 Top 2% in FinTech & Healthcare Product Engineering 🌟 Top 3% in Node.js & Java Spring Boot Architecture ✨ I specialize in Full Stack Web & Mobile Development, focusing on designing, building, and deploying secure, scalable, and high-performing platforms that drive measurable impact. My role often bridges product strategy and technical implementation, ensuring every feature aligns with real business outcomes. 🧠 Tech Expertise & Stack ✅ Backend: Ruby on Rails, Node.js, Laravel, Java Spring Boot ✅ Frontend: React.js, Next.js, Vue.js, TailwindCSS ✅ AI Integrations: OpenAI (GPT-4), LangChain, Pinecone, vector databases ✅ APIs & Integrations: Stripe, Plaid, Twilio, Firebase, Zapier, AWS SDK ✅ Databases: PostgreSQL, MongoDB, MySQL ✅ Cloud & DevOps: AWS (EC2, S3, Lambda, RDS), Docker, Heroku, CI/CD ✅ Mobile: Flutter, React Native, Swift 💡 Core Services I Offer: • Full Stack Web Development: Ruby on Rails + React.js + Node.js • FinTech Platforms: Banking APIs, KYC, Plaid, Stripe, data compliance • HealthTech Systems: HIPAA-compliant EHR, scheduling, telehealth portals • SaaS Applications: Auth, billing, analytics, and subscription-based dashboards • AI-Powered Features: GPT chatbots, NLP search, LangChain integrations • MVP Development: Fast, secure, investor-ready prototypes and scale-ready builds 🏥 Industries Served: FinTech | HealthTech | SaaS | AI Automation | Real-Time Collaboration Apps 🤝 Why Clients Trust Me: ✔️ Over a decade of delivering scalable, production-grade platforms ✔️ Deep understanding of FinTech & HealthTech regulations and architecture ✔️ Clean, maintainable code that balances speed with long-term stability ✔️ Proactive communication and product-driven mindset ✔️ Consistent 5⭐ client satisfaction, repeat partnerships & referrals 🌍 Trusted by global startups and enterprises for reliable execution, transparent communication, and solutions that balance innovation with precision. 💬 "Fahad is able to clearly communicate, act as a team player and a team leader, will ask the right questions and takes pride in his work. He is a capable engineer and manager and will be an amazing addition to any team who is lucky enough to work with him." — Client Feedback ✨ Key Skills: Full Stack Web Development: Ruby on Rails, React.js, Next.js, Node.js, Laravel, Java Spring Boot, TypeScript, TailwindCSS, Vue.js, Express.js, RESTful APIs, GraphQL, WebSockets, JWT, OAuth, MVC Architecture, Microservices Frontend Engineering: React.js, Next.js, Redux, TypeScript, TailwindCSS, Material UI, Ant Design, Styled Components, HTML5, CSS3, Sass, Responsive Design, UI/UX Optimization, GSAP Animations, Three.js Backend Development: Ruby on Rails, Node.js, Express.js, Laravel, Java Spring Boot, Flask, FastAPI, Sidekiq, Redis, Celery, REST API Design, Authentication Systems, Background Jobs, Server-Side Rendering SaaS & Product Engineering: Multi-tenancy Architecture, Subscription Systems, Billing Automation (Stripe, PayPal, Plaid), Analytics Dashboards, Admin Panels, RBAC (Role-Based Access Control), System Audits, Performance Optimization FinTech & HealthTech Expertise: Plaid API, Stripe, Twilio, HIPAA Compliance, Secure Data Architecture, Banking Integrations, Payment Gateways, Financial Dashboards, Record Management, Patient Scheduling, EHR Systems Cloud, DevOps & Infrastructure: AWS (EC2, S3, Lambda, RDS, EKS), Docker, Kubernetes, Heroku, CI/CD Pipelines (GitHub Actions, Jenkins), Terraform, Serverless Framework, Load Balancing, API Gateway, Monitoring & Scaling Database & Data Management: PostgreSQL, MongoDB, MySQL, DynamoDB, Firebase, Supabase, Prisma ORM, Data Modeling, Query Optimization, Caching, Redis Testing & QA: RSpec, Jest, Cypress, Selenium, Unit Testing, Integration Testing, TDD/BDD, Code Review, CI Test Automation Version Control & Collaboration: Git, GitHub, Bitbucket, GitLab, Agile Methodologies, Scrum, JIRA, Trello, Asana, Notion, Documentation Mobile Development: React Native, Flutter, Swift, Kotlin, Android Studio, Xcode, Cross-Platform App Development, API Integration Security & Compliance: HIPAA, OAuth 2.0, JWT, Data Encryption, OWASP, Role-Based Access, Secure Code Reviews, GDPR 𝐋𝐞𝐭’𝐬 𝐝𝐢𝐬𝐜𝐮𝐬𝐬 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 𝐚𝐧𝐝 𝐛𝐮𝐢𝐥𝐝 𝐚 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞, 𝐡𝐢𝐠𝐡-𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐰𝐞𝐛 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐭𝐡𝐚𝐭 𝐝𝐫𝐢𝐯𝐞𝐬 𝐫𝐞𝐬𝐮𝐥𝐭𝐬. 𝐈’𝐦 𝐫𝐞𝐚𝐝𝐲 𝐭𝐨 𝐬𝐭𝐚𝐫𝐭 𝐢𝐦𝐦𝐞𝐝𝐢𝐚𝐭𝐞𝐥𝐲.

AN OVERVIEW * Currently working as a Software Developer Engineer( Java ). * Experience in Product also in Service based projects. * Better knowledge in Mifos Full-stack development and Apache Fineract. * Passionate about implementing and launching new projects. * Have been involved in creating and reviewing the requirements and test cases. * Involved in generating Daily and Weekly Status Reports. * Ability to translate business requirements into technical solutions * Quick learner and excellent team player and ability to meet tight deadlines. Experience on Agile Methodology . SOFTWARE DEVELOPMENT SUMMARY * Three plus year experience in Java,Spring Boot,Angular JS,MySQL ,Git with Apache Fineract and Mifos. * Experience in AWS EC2 instance creation,S3 bucket and RDS configuration in fineract. * Experience in Automated SSL and WildCard SSL.

Innovative and results-driven software developer with 6 years of experience in designing and delivering robust backend solutions. Proficient in modern Java technologies, including Java 17+, Spring Boot, Spring Cloud, and related frameworks, as well as C# and .NET. Experienced in building cloud-native applications, leveraging containerization with Docker, orchestration with Kubernetes, and platform management on OpenShift. Skilled in developing scalable microservices architectures, managing databases, and optimizing cloud infrastructures. A proactive team player with a strong track record in diagnosing complex issues and implementing efficient, modern software solutions.

I help companies build scalable Adobe Experience Manager (AEM) platforms and high performance web applications using Java and React. I’m a certified AEM Developer and Full Stack Engineer with a Bachelor’s degree in Computer Science and over 6 years of hands-on experience building enterprise web platforms across industries such as healthcare, construction, banking, and finance. I’ve worked with agencies including Valtech, Adjacent, and Codeland, where I built and improved AEM platforms, developed custom components, and migrated projects to AEM 6.5 and AEM as a Cloud Service. I also have experience working with AEM Edge Delivery Services, helping teams build faster and more flexible content delivery architectures. My work includes backend development with Java, Sling, OSGi, Servlets, and APIs, as well as frontend development using JavaScript, React, and modern web technologies. I’m comfortable taking ownership of tasks end to end, from designing backend services and APIs to building frontend interfaces and integrating them into AEM or standalone web applications. I regularly work with REST APIs, GraphQL, Dispatcher configuration, performance optimization, and external system integrations to ensure applications are scalable and reliable. I also have experience with automation testing using Playwright, building end to end tests for critical user flows to help teams maintain quality and catch regressions early in the development process. I enjoy writing clean and maintainable code, improving the authoring experience in AEM, and collaborating closely with designers, product teams, and stakeholders. If you're looking for someone who understands AEM from backend architecture to frontend implementation and can also contribute as a full stack developer with Java and React, I’d be happy to help. Feel free to reach out if you need help with AEM projects, Java backend development, React frontend development, API integrations, automation testing, or performance optimization.

🏆 TOP-RATED (TOP 10% on Upwork) |💭 Looking for a tech partner to bring your vision to life? Whether you're launching a startup, scaling an existing business, or pivoting your current venture - I’m here to help you succeed. 🔍 What I Can Help You With: 🚀 MVP Development: Build and launch MVPs in record time, so you can test the market and monetize quickly. 🚀 Full-Stack Development: Seamless front-end and back-end solutions designed for performance, scalability, and maintainability. 🚀 Custom Cloud Solutions: Thoughtfully designed architectures that are cost-effective from day one and scale seamlessly with your growth. 🚀 AI-Powered Tools: Enhance your business operations with intelligent chatbots, recommendation engines, or sales tools. 🚀 Reliable Data Pipelines: Automate data aggregation with robust pipelines that seamlessly integrate APIs, scrapers, and data feeds for real-time updates. 🚀 Technical Leadership: End-to-end project guidance, from inception to operating successfully in production during peak times. 👨‍💻 Tech I Work With: 💻 Backend / Front end / Full-Stack Development: ✔️ Java (Spring / Quarkus) / Python (Flask) / Node.js / Express.js ✔️ PostgreSQL / MSSQL / ORACLE ✔️ React / Angular / JavaScript / TypeScript ✔️ HTML / CSS / Tailwind / Ant Design ☁️ AWS Cloud: ✔️ Serverless / Lambda / Step Functions / API Gateway / S3 / DynamoDB / SNS / SQS / etc 🚀 Infrastructure as code & CI/CD: ✔️ AWS CDK / OKD / Serverless framework ✔️ GitHub Actions / GitLab CI/CD What Clients Say About Me: ⭐️⭐️⭐️⭐️⭐️ "Thanh is a nice person to work with! We implemented a lot of functionality in open source library. Some tasks were really hard to implement. I recommend Thanh as experienced java developer." ⭐️⭐️⭐️⭐️⭐️"Thanh did a wonderful job on our project, would not hesitate to work with again." ⭐️⭐️⭐️⭐️⭐️ "He is best freelancer i have met to work on Java" 🚀 Let’s Build Your Next Big Thing! 📊 I believe that thoughtfully designed solutions should be both cost-effective and scalable. With a decade of experience in software architecture and technical leadership, I ensure your projects are built to succeed—so you can focus on what truly matters: your business. 💼 Ready to partner? Message me today, and let’s get started!

🚀 Full-Stack Web Developer & UI/UX Designer | 15+ Years of Proven Experience I’m a Senior Full Stack Developer with 15+ years of experience building scalable web applications, SaaS platforms, and high-performance APIs using PHP (Laravel), React.js, Node.js, and Java. I help startups and businesses turn ideas into fast, secure, and user-friendly digital products—handling everything from UI/UX design to backend development and cloud deployment (AWS & DevOps). I’ve successfully delivered 80+ projects, including web apps, dashboards, enterprise systems, automation tools, and AI-powered applications. 💼 What I Can Do For You ✔ Full Stack Web Development (Frontend + Backend) ✔ SaaS Application Development ✔ REST API Development & Third-Party API Integration ✔ AI Chatbots & Automation ✔ UI/UX Design (Modern, Responsive, User-Focused) ✔ Cloud Deployment & DevOps (AWS, Docker, CI/CD) 🛠️ Tech Stack Frontend: React.js, Next.js, HTML5, CSS3, JavaScript, TypeScript, Tailwind, Bootstrap Backend: Node.js, Express.js, NestJS PHP (Laravel, Symfony, CodeIgniter) Java (Spring Boot, Microservices) Database: MySQL, PostgreSQL, MongoDB, Firebase Cloud & DevOps: AWS (EC2, S3, RDS, Lambda, CloudFront), Docker, Jenkins, GitHub Actions, Nginx API Integration: Stripe, PayPal, Twilio, SendGrid, Google Maps API 🏭 Industry Experience E-commerce • Healthcare • Finance • ERP/CRM • Manufacturing 🌟 Why Clients Choose Me ✅ 15+ Years of Proven Experience ✅ Expert in React.js, Node.js, PHP Laravel, AWS ✅ Clean, Scalable & Maintainable Code ✅ Fast Delivery with Clear Communication ✅ Strong Problem-Solving & Debugging Skills ✅ Reliable & Long-Term Support

🎯 Liferay DXP 7.4 Certified Professional Back-End Developer ⌛ 10 Years on Liferay Platform 🏆 100% Job Completion | Top Rated on Upwork | 7500+ Hours on Upwork I have 10 years of expertise in Software Development, Solution Architecture, and Product Design, with a strong focus on Liferay and Spring technology. 💼 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐒𝐤𝐢𝐥𝐥 : 𝐂𝐨𝐫𝐞 : Java, J2EE, Liferay(6.X/7.X), Spring Boot, JSF, PrimeFaces,Icefaces, Richfaces, FHIR, ABDM, SNOMED-CT,REST, SOAP web services 𝐅𝐫𝐨𝐧𝐭-𝐄𝐧𝐝 : AngularJS, ReactJS, HTML4/5, XHTML, XML, CSS3, jQuery, JavaScript, AJAX 𝐒𝐞𝐫𝐯𝐞𝐫𝐬 : Tomcat, JBoss/Wildfly and Jetty, GlassFish 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 : Spring Security, OAuth2, JWT 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 : SQL, MySQL, PostgreSQL, MongoDB and Oracle 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 : Gmail, Google Meet, Google Calendar, Zoom, RazorPay, Stripe, SMTP, Twilio, DocuSign, Google Maps API, PayPal 𝐇𝐞𝐚𝐥𝐭𝐡𝐂𝐚𝐫𝐞 𝐒𝐭𝐚𝐧𝐝𝐚𝐫𝐝 : FHIR | EHR | EMR | SNOMED | HL7 | OpenEHR | OpenEMR | ABDM 𝐒𝐞𝐚𝐫𝐜𝐡-𝐄𝐧𝐠𝐢𝐧𝐞𝐬 : Apache Solr, Elastic Search 𝐂𝐥𝐨𝐮𝐝 𝐚𝐧𝐝 𝐃𝐞𝐯𝐨𝐩𝐬 : AWS, Google Cloud, Azure, Jenkins, CICD, Docker, Kubernetes 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 : JTest, JUnit, Mockito and Powermock 𝐂𝐨𝐝𝐞 𝐐𝐮𝐚𝐥𝐢𝐭𝐲 𝐓𝐨𝐨𝐥𝐬 : Crucible and Sonarqube 𝐁𝐮𝐢𝐥𝐝 𝐭𝐨𝐨𝐥𝐬 : Maven, Gradle, Ant, npm, grunt and webpack 𝐕𝐂𝐒 : SVN, GIT, GITLAB, Bitbucket 𝐎𝐒 : Linux, Windows and Mac OS 𝐁𝐮𝐠/𝐈𝐬𝐬𝐮𝐞 𝐭𝐫𝐚𝐜𝐤𝐞𝐫𝐬 : Jira, asana, Trello 🔐𝐋𝐢𝐟𝐞𝐫𝐚𝐲 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 : ➜ Expert in almost all OOTB features [ Sites, Pages, Webcontents, Fragments, Layouts, Asset Publishers, Categories, Tags, Search, Workflows, User Management, Roles, Permission, User Groups ] ➜ Implemented Custom Portlets [ using MVC, React, Spring, JSF, service builder and standards like OSGI, JSR 168 and 268 ] ➜ Implemented REST API using Liferay Rest builder ➜ Implemented themes [ using Freemarker, velocity ], ➜ Customized Liferay [ using Service wrapper, Portlet filter, Lifecycle events, Model listeners, Search contributors, JSP, Core Classes ] ➜ Implemented Web Fragment [ Freemarker, HTML, CSS, Javascript ] ➜ Implemented SSO Integration supports SAML, Keycloak, LDAP, OpenId, OAuth, and more ➜ Implemented SMS and WhatsApp Integration using Twilio ➜ Implemented Third-Party integration using REST API or client SDK ➜ I have recently upgraded Liferay 7.0 to Liferay 7.4 including data and code migration both. Looking forward to working with you to develop and deliver a fantastic product and Solutions as per your Business Requirements.

Data Engineer & AI Developer | 3+ Years Financial Industry Experience I build data pipelines, AI-powered applications, and automation systems that run reliably at scale. My background spans web scraping, LLM integration, computer vision, betting automation, and full-stack data dashboards — delivered to clients across the US, UK, Europe, and Japan. 💼 Background — 3+ years at a leading Indian bank building risk models, credit scorecards, and AutoML pipelines — PG Diploma in Big Data Analysis ⚡ What I Deliver — Web scrapers handling 1.2M+ URLs and 120K daily pipelines — LLM/AI apps using GPT-4, Gemini, LangChain, RAG, Text-to-SQL — Full Betting automation for horse racing, golf, and football signals — Computer vision pipelines with YOLOv8 and PaddleOCR — Streamlit dashboards, risk scorecards, and AutoML tools 🏆 Notable Work — PitchBook scraper — 1.2M URLs — Njuskalo — 120K daily real estate listings — Text-to-SQL architecture — BetFare — full Betfair automation — LLM Notebook — $1,420 solo delivery — Anti-bot bypass systems 🛠️ Stack Python · Playwright · Selenium · GPT-4 · Gemini · LangChain · Streamlit · PySpark · SQL · YOLOv8 · PaddleOCR · FastAPI · Betfair API · n8n Clean code. Clear communication. Delivered on time.