Sibongiseni Mxinwa

Full-Stack Web & Mobile Developer
Midrand, ZA.

About

Highly accomplished Full-Stack Web and Mobile Developer with 7 years of progressive experience, specializing in crafting intuitive, high-performance digital solutions. Adept in both front-end and back-end development, I excel at building aesthetically pleasing and highly functional applications that enhance user experience and drive business objectives. My expertise spans diverse web and mobile frameworks, complex database management, and robust API integration, consistently delivering scalable and efficient solutions.

Work

Sakhumnotho Group Holdings
|

Web Developer

Johannesburg, Gauteng, South Africa

Summary

Led the development and maintenance of comprehensive back-end and front-end web applications, significantly enhancing user experience and system functionality for a diverse user base.

Highlights

Developed and maintained full-stack web applications, optimizing user experience and functionality across various platforms, leading to improved user satisfaction and engagement.

Engineered seamless cross-platform optimization for mobile devices, enhancing accessibility and user engagement by an estimated 20% across key digital properties.

Collaborated closely with graphic designers to integrate modern, user-friendly web design features, resulting in visually appealing and highly functional interfaces.

Successfully balanced complex technical requirements with evolving consumer needs to deliver high-quality digital solutions that consistently met project timelines and scope.

Leveraged a robust technology stack including Laravel, WordPress, JavaScript, CSS, MySQL, and HTML5 to build scalable and efficient web applications, supporting over 10,000 active users.

The Kelston Motor Group
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PHP Developer

Port Elizabeth, Eastern Cape, South Africa

Summary

Spearheaded the development and maintenance of core lead management and CRM systems, optimizing data handling and user functionality for enhanced operational efficiency.

Highlights

Developed and maintained the lead management system, CRM, and various sub-systems, improving data handling efficiency by 15% and streamlining user functionality.

Executed rigorous quality checks and comprehensive testing, reducing code inaccuracies by 25% and enhancing application performance by 10% month-over-month.

Implemented SEO-aligned front-end web designs and UI/UX functionality, boosting website visibility and user experience, contributing to a 5% increase in organic traffic.

Managed security protocols, platform updates, and UI improvements, ensuring 99.9% website uptime and data integrity.

Maintained and updated critical website APIs, ensuring seamless integration with in-house systems and external services, improving data exchange reliability by 20%.

Utilized a diverse technology stack including Amazon Web Services (AWS), Laravel, Vue.js, Linux, JavaScript, MySQL, and Livewire to build robust and scalable solutions.

Freshmark Systems
|

Mobile Application Developer

East London, Eastern Cape, South Africa

Summary

Managed the full mobile application lifecycle, from design to deployment, ensuring seamless user experiences and robust functionality across multiple platforms.

Highlights

Supported the entire application lifecycle, including design, testing, release, and ongoing support, leading to a 15% improvement in user retention and a 10% reduction in reported bugs.

Developed and optimized RESTful APIs, facilitating smooth and efficient communication between mobile applications and backend services, reducing data retrieval times by 20%.

Designed and maintained databases to optimize data storage and retrieval for mobile applications, improving query performance by 25% and ensuring data integrity.

Developed fully functional mobile applications for iOS and Android, alongside Progressive Web Apps (PWAs), reaching a user base of over 50,000 individuals.

Leveraged technologies such as Flutter, React Native, React.js, PHP MVC Custom Framework, MySQL, and Linux to build scalable and efficient mobile solutions that supported concurrent users.

Nabutone Connect
|

Junior Android Developer

Pretoria, Gauteng, South Africa

Summary

Designed, developed, tested, and maintained user-friendly Android applications, contributing to the delivery of functional mobile solutions.

Highlights

Designed, developed, tested, implemented, and maintained Android applications, contributing to a 10% improvement in user engagement and satisfaction.

Collaborated effectively with clients, managers, business analysts, and developers in a cross-functional team environment, ensuring 95% of project goals were met efficiently and on schedule.

Utilized Android Native technologies to build robust and scalable applications tailored to client needs, enhancing application stability and performance.

The Digital Academy
|

Mobile Developer Intern

Johannesburg, Gauteng, South Africa

Summary

Participated in the design, testing, and development of databases and mobile applications, contributing to software documentation and team collaboration.

Highlights

Assisted in the design, testing, and development of mobile applications and backend databases, gaining foundational experience in full-stack mobile development.

Contributed to the compilation of technical documentation for software projects, improving clarity and maintainability for future development cycles.

Collaborated actively with senior developers in a team environment, learning best practices in agile development methodologies and contributing to project milestones.

Gained hands-on experience with Android, Ionic, PHP, and MySQL technologies in a practical development setting.

Coralite Training Academy
|

Software Developer Intern

Sandton, Gauteng, South Africa

Summary

Engaged in the design, testing, and development of databases and applications, supporting software documentation and collaborative development efforts.

Highlights

Participated in the design, testing, and development of various databases and applications, enhancing understanding of software development lifecycle.

Assisted in compiling comprehensive documentation for software components, contributing to improved project transparency and team efficiency.

Collaborated effectively with managers and developers in a team environment, actively contributing to problem-solving and project delivery.

Gained practical experience with key technologies including C#, Java, HTML5, CSS3, JavaScript, ASP.NET MVC 4.5, and MS SQL Server.

Education

Walter Sisulu University
Butterworth, Eastern Cape, South Africa

National Diploma

Information Technology

Courses

Software Development

Mangala Senior Secondary School
Libode, Eastern Cape, South Africa

Grade 12

General Studies

Awards

Best Solution for the Internship Programme

Awarded By

The Digital Academy

Awarded for demonstrating exceptional problem-solving skills and delivering the most effective solution during the Mobile Developer Internship program.

Languages

English
isiXhosa

Certificates

MTA Software Development Fundamentals

Issued By

Microsoft

Programming in HTML5 with JavaScript and CSS3

Issued By

Microsoft

OCA Java SE8 Programmer

Issued By

Oracle

Skills

Databases

MongoDB, MySQL, MS SQL Server.

Cloud Platforms

Azure, Amazon Web Services (AWS).

Programming Languages & Frameworks

HTML5, CSS3, JavaScript, TypeScript, PHP (Laravel), Node.js (Express.js), ReactJS, Flutter, React Native, C#, Java, ASP.NET MVC.

Tools & Methodologies

Material UI, WordPress, Linux, Vue.js, Livewire, RESTful APIs, UI/UX Design, SEO, Cross-platform Optimization, Application Lifecycle Management, Agile Development.