JUSTIN KAROLES

“Full Stack Developer with a Diploma in ICT: Application Development (CPUT). Skilled in Java, Spring Boot, PHP, SQL/MySQL, HTML, CSS, and JavaScript, with hands‑on experience in React, Vue.js, and React Native. Passionate about technology, continuous learning, and delivering innovative digital solutions with adaptability and excellence.”

Solms Delta Farm Off R45, Groot Drakenstein 7680, Stellenbosch

Years experience

Projects

Skills

Work Experience

IT Support & Systems Administrator

Doctor/UGQIRHA P. MHLONGO - Medical Practice

2026 — Present

Provide end-to-end technical support as the sole IT professional in the office, assisting approximately 5 staff members
Maintain and troubleshoot hardware, software, and networking systems to ensure smooth daily operations
Support staff with electronic health record (EHR) systems, scheduling software, and communication tools
Implement data security measures and backups in compliance with patient privacy regulations
Optimize workflows by introducing digital solutions for record-keeping, billing, and appointment management
Act as the primary liaison with external vendors and service providers for IT infrastructure and upgrades

Intern

Plum Systems

2025 — Dec 2025

Contributed to the development of mobile and web applications using React, Redux, Firebase, and JavaScript, while gaining hands-on experience with real-world company projects
Implemented new features, enhanced UI/UX design, and delivered upgrades to existing functionality, reducing code redundancy and improving overall system efficiency
Assisted in building the GradStar Application, connecting students with financial aid and employment opportunities, combining technical development with social impact
Participated in agile workflows including daily stand-ups, sprint planning, and meeting project deadlines

Projects

E‑commerce Platform

Full‑stack solution for secure online sales, with responsive frontend and robust backend ensuring user‑friendly design.

ReactSpring BootMySQLJavaTypescript

LiftShare Transport App

Cross‑platform mobile app enabling ride‑sharing with real‑time tracking and secure authentication.

Next.jsGoogle Maps APITailwindTypeScriptSupabase/PostgreSQL

Blockchain Charity Platform

Decentralized donation system using smart contracts for transparency and trust.

SolidityWeb3.jsHTML/CSSJavascript

Prodemy Learning Platform

Skills‑learning site with structured courses, progress tracking, and assessments to improve accessibility.

Vue.jsSpring BootMySQLJavaRESTful API

Skills

JavaSpring BootPHPSQL/MySQLHTMLCSSJavaScriptTypeScriptNode.jsVue.jsSolidity (Blockchain)ReactReact NativeFirebaseNetBeansVS CodeIntelliJ IDEAFigmaFull‑stack (front‑end + back‑end) for scalable applicationsProblem‑solvingTeamworkCommunicationAgile PracticesVersion Control & CI/CDScripting & AutomationSecurity Practices: JWT, OAuth2, role-based access control, encryption basics