Hire the Best Oracle Application Express Developers

I turn a business process nobody has written down properly into a design an engineer can build — then stay through implementation. The one I point to most: a single sign-on ecosystem I designed and built for 2,600+ users across Java, PHP and .NET. 13+ years, mostly enterprise and public-sector systems. What that has looked like: • Single Sign-On ecosystem (PT Perkebunan Nusantara IV) — initiated and designed the ecosystem where no prior internal effort existed, built the Java EE core myself, and designed the Portal and Access Management components. Two phases, roughly three months, six people. Replaced separate logins for 2,600+ users across Java, PHP, and .NET applications. • Performance management rebuild (PT Perkebunan Nusantara IV) — led a seven-person team rebuilding an appraisal system on Java EE, Service-Oriented Architecture, and SQL Server stored procedures. Four months, around 600 executive users. The data and performance failures reported against the previous version did not recur in the observed appraisal period. • Customs import integration (PT Teknoglobal) — built two Java EE flat-file parsers plus document-validation and multithreaded background-processing services for a national customs system, consuming import and banking data delivered through an IBM MQ messaging layer. I owned those modules; I did not build the messaging infrastructure and I did not lead the wider project. • Mobile content ecosystem, 2023–2026 — architected and led the v2 backend rebuild after the original could not scale past inconsistent data and a schema that resisted new features. Designed the database, coded the core processing, and led a team of QA, mobile, and web developers. A compatibility API let existing clients run against the new backend, so the cutover carried users across without significant disruption. • Most recently — specified and led a C#/.NET 8 WPF refactoring that separated the user interface from background services over gRPC, then built a REST-based Cloud Sync worker linking the desktop client to a Next.js platform. I handed that work over on completion of my scope in July 2026; the client team continues development. Since August 2026 I work independently under my own trade name, currently delivering a landing page and registration flow for a member-based organization (Go, MariaDB). Where I am useful: enterprise integration, single sign-on and access flows, internal tools and workflow systems, procurement and ERP-adjacent processes, legacy modernization, and backend work in Java, C#/.NET, or PHP/Laravel. Where I am not: SAP configuration or ABAP, mobile-first product design, data science, and anything requiring a cloud architecture certification I do not hold. I work to an agreed schedule, put delivery risks in writing early, and tell you when something I designed turns out to be wrong.

🏆 Top Rated Plus — delivering future-ready Oracle, Cloud, and AI-powered solutions trusted by global clients. Hello! I'm Bilal Maqsood, an Oracle APEX Developer, OCI Cloud Architect, PL/SQL Expert, and AI Integration Specialist with a proven track record of building secure, high-performance, and intelligent applications. With 2+ years of experience and multiple successful Upwork projects, I combine Oracle development with modern AI technologies, automation, and advanced integrations to help businesses operate smarter and faster. 🌟 Core Expertise (Oracle + Cloud + AI) ✔ Oracle APEX Development Building scalable, secure, and feature-rich business applications with custom UI, dynamic actions, and advanced components. ✔ Oracle Cloud Infrastructure (OCI) Deploying cloud-native APEX apps, Autonomous DB, VCN setup, identity configuration, and performance optimization. ✔ AI Integration & Intelligent Automation Integrating AI-powered workflows, embedding NLP features, connecting chatbots, and enabling AI-driven decision-making inside APEX and backend systems. ✔ Agentic AI (AI Agents) Implementing smart AI agents that automate tasks, perform reasoning, interact with APIs, assist users, and enhance enterprise applications. ✔ Python API Development & Integrations Building REST APIs using Python, integrating AI models, NLP services, automation scripts, and external APIs into Oracle applications. ✔ SQL & PL/SQL Engineering Designing optimized data architectures, writing efficient packages, functions, triggers, and backend logic. ✔ JavaScript, UI/UX & Modern Front-End Enhancements Crafting interactive, visually appealing, and dynamic user experiences inside APEX using JS, jQuery, and Tailwind-style components. ✔ REST API Integration Connecting Oracle APEX with external services, AI platforms, cloud systems, and third-party enterprise tools. ✔ Jasper Reports Development Creating advanced, pixel-perfect reporting solutions with automation and dynamic data visualization. 🏆 Why Clients Choose Me 💖 Top Rated Plus — elite 3% freelancer on Upwork Modern skillset: Oracle + Cloud + AI Proven history of on-time, high-quality deliveries Scalable architectures designed for long-term growth Strong focus on security, performance, and clean code Transparent communication and professional project handling Experience working with global clients in diverse industries 🚀 What I Deliver Custom Oracle APEX enterprise applications Full OCI environment setup & cloud deployments AI features, NLP integrations, and intelligent automation Python-based REST APIs and backend integrations Secure API development & third-party system connectivity PL/SQL logic, database optimization & troubleshooting Jasper reporting, dashboards & automated scheduling UI/UX improvements, modular JS components & performance tuning I’m here to help you build secure, scalable, and AI-enabled Oracle solutions that are ready for the future of enterprise technology. If you're looking for a Top Rated Plus Oracle & AI Developer who can deliver modern, intelligent, and high-performing solutions— let’s collaborate and take your application to the next level. 💬 Ready to get started? Let's discuss your project!

I specialize in Oracle APEX front-end development — building clean, responsive UI/UX with custom Interactive Grids, dashboards, and Tailwind CSS-based page templates — backed by strong PL/SQL and backend development skills. I currently serve as the primary developer (both frontend and backend) on a large-scale enterprise financial management system, handling everything from budgeting interfaces to REST API integrations and complex PL/SQL logic. Frontend / UI-UX (primary strength): - Custom Interactive Grid interfaces — toolbars, live totals, status filters, per-row logic - Tailored APEX themes and Tailwind CSS-based templates - Custom dashboards with real-time, data-driven visualizations - Advanced JavaScript & Ajax — client-side scripting, dynamic actions, custom UI components Backend (strong secondary): - PL/SQL development — procedures, functions, triggers, complex business validation logic - Oracle Forms to APEX migration (6i/11g/12c to APEX 24.2) - REST API integration, including e-invoicing (ZATCA) and third-party systems - Access control and authentication systems I've delivered projects ranging from quick PL/SQL scripts to a full enterprise financial system currently in progress. If you need someone who can own both the interface and the database layer, let's talk about your project.

I’m an Oracle Certified Professional (OCP) with 12+ years of experience building and leading application delivery using Oracle Database, Oracle APEX, PL/SQL, and Java. I help clients design, build, optimize, and integrate business-critical systems—especially in Banking/FinTech, ERP, and Budgeting/Forecasting. What I can do for you: • Oracle APEX application development (Forms, Reports, Dashboards, Interactive Grid, Validations, Dynamic Forms, Dynamic Content, Workflow Management, Task Management, Integration with External Service) • PL/SQL & SQL development + performance tuning (slow pages/reports, query optimization, indexing) • ORDS / RESTful services (build and consume REST APIs; integrate with external systems) • System integrations via REST/SOAP APIs • Reporting: Jasper Reports, Oracle Reports, BI Publisher • Server & deployment setup: ORDS with Tomcat, and Apache/Nginx load balancing • Integration experience includes: Google Maps integration in APEX, Open Street Map Integration, Biometric authentication integration in APEX, Camera Integration I work in a structured way: scope → quick prototype → iteration → delivery + handover. If you already have an APEX app, share the page/report and issue (error/slow/wrong output)—I’ll propose the best fix plan quickly.

Career Highlight • Senior Solutions Architect & Oracle Consultant with 20+ years of expertise in Cloud Transformation, OCI, and Oracle Products. • Accomplished IT Strategist driving large-scale infrastructure transformations across the Telecom, Banking, Commercial and Government sectors. • Expert in bridging the gap between business objectives and technical execution, specializing in Oracle Cloud Infrastructure (OCI), Exadata, and Hybrid Cloud architectures. • Proven track record of leading complex pre-sales cycles, from RFI/RFP responses to proof-of-concept (POC) delivery and executing mission-critical database migrations that optimize operational costs and enhance efficiency. • Certified OCI Architect with deep expertise in managing vendor relationships and delivering high-value solutions for top-tier enterprise clients. Core Competencies: • Cloud Platforms: OCI Architecture, Cloud Migrations, Exadata, ExaCC, OCVS, ZDLRA, Hybrid Disaster Recovery Solutions, Multi-Cloud Strategy (AWS & Azure). • Strategic Pre-Sales: RFI/RFP Management, Solution Design, TCO Analysis, Customer Workshops. • Services: Solution Architecture, IT Infrastructure & Cloud Managed Services, Technical Account Management and Disaster Recovery. • Database Management: Oracle Database Migration, Performance Tuning, Backup & Recovery, MySQL, MongoDB. • Sectors: Telecommunications, Banking/Finance, Government, Commercial. Professional Certificates & Badges: • Oracle Cloud Infrastructure Certified Architect Associate. • Oracle Cloud Infrastructure Migration Architect Professional. • Oracle Cloud Database Migration and Integration Professional. • Oracle Cloud Infrastructure Multicloud Architect Professional. • Microsoft Certified: Azure Fundamentals. • AWS Certified Solutions Architect Associate • Oracle Exadata On-Premise Solutions Engineer Specialist • Oracle Exadata On-Premise Sales Specialist • Oracle Recovery Appliance (ZDLRA) Solution Engineer Specialist • MySQL Solutions Engineer Specialist. • ITIL® Foundation

I build full-stack web and mobile applications end-to-end from database schema to deployed UI for clients who need code that ships, scales and holds up in production. Over the past 6 years I've architected systems from scratch and delivered enterprise-grade software for banking and business platforms, so I bring more than just working code: I bring the security discipline, performance thinking, and clean architecture that production environments demand. What I do best ✔ Backend (Java): Spring Boot, REST APIs, microservices, JPA/Hibernate, SQL & NoSQL, authentication & authorization, third-party integrations ✔ Frontend: React, Node.js, Express, MongoDB (MERN), Responsive and Dynamic web applications, plus Knockout.js for legacy or enterprise stacks ✔ Mobile: React Native for cross-platform iOS & Android apps, hybrid apps with Cordova, and native bridges connecting JavaScript to Java ✔ Full-stack builds: MVPs, dashboards, admin panels, internal tools, and customer-facing web & mobile apps 🔹 Core Skills Java / Spring Boot (Primary Focus) ✔ REST API & Microservices development ✔ Spring Security, JWT, OAuth2 ✔ Payment gateway integrations ✔ JPA / Hibernate & performance optimization ✔ Logging, auditing & exception handling ✔ Third-party integrations MERN Stack ✔ MongoDB, Express.js, React.js, Node.js ✔ Responsive and dynamic web applications Databases & Tools ✔ MySQL, PostgreSQL, MongoDB ✔ Docker 🔹 What You Can Expect ✔ Clean, maintainable, and scalable code ✔ Clear communication & regular updates ✔ Reliable long-term support Whether you need a rock-solid backend, a full-stack web app or a cross-platform mobile build let's talk about how I can help ship it.