Aqeel H.

Hi, I’m Aqeel Haider, a senior Java developer with 9+ years of enterprise Java experience and the founder of Machine Intelligence 6. I build, maintain, and modernize Java applications and Spring Boot backends. I’m Top Rated Plus on Upwork with $400K+ earned, including a long-term product engagement spanning 9,900+ hours. Java & Spring Boot Development • Backend applications and business logic • REST API development and third-party integrations • Authentication and role-based access with Spring Security • Bug fixes, performance improvements, and legacy modernization • Ongoing maintenance and feature development Healthcare & Business Software • Clinic and practice management systems • Healthcare dashboards and administrative portals • HIPAA-aware application design, access controls, and handling of sensitive information • CRM, ERP, SaaS platforms, and custom business applications Databases & Deployment • PostgreSQL, MySQL, and Microsoft SQL Server • Database design, SQL queries, and application integration • Docker, AWS, Azure, and Linux deployment Java Desktop Applications • Java Swing and Java 2D • Multithreading and application responsiveness • File handling, image processing, and video processing • Maintenance and modernization of existing applications Legacy PHP, Laravel & Yii 1 Applications • Maintenance, bug fixes, and new features for existing PHP, Laravel, and Yii 1 applications • Troubleshooting database issues, third-party integrations, and application performance • Refactoring legacy code and planning upgrades or gradual modernization How I Work You work with me directly on planning, development, and delivery. My team provides additional support when needed. Expect clear milestones, regular updates, working demos, documented code, and support after delivery. Send me your requirements or details of your existing application, and I’ll help you define a practical approach and next steps. Aqeel Haider Founder, Machine Intelligence 6