Design and development of scalable web, cloud, and AI-driven systems; client-facing solution architecture and technical strategy. Implemented a Next.js SSR-based payment platform on AWS serverless infrastructure, with Stripe integration, real-time updates via API Gateway/WebSocket, and observability through CloudWatch. Built an AI-powered assistant using Amazon Bedrock and engineered high-performance, low-latency systems supporting 10M+ concurrent video calls via WebSockets and Twilio. Emphasized security (HTTP-only cookies, RBAC, signed webhooks, encryption) and containerization with Docker. Led Agile practices including sprint planning and reviews.

Full Stack Software Developer at RapiDev Online

December 1, 2023 - July 31, 2025

Helped clients build APIs with Express to retrieve data from PostgreSQL and present it on a React frontend. Analyzed thousands of lines of code, fixed hundreds of bugs, and optimized performance. Implemented advanced search using Elasticsearch, integrated Docker with PostgreSQL and Tomcat, and designed robust data access patterns with multiple SQL joins. Worked in Agile sprints with client collaboration and implemented role-based authentication.

Junior Communication Officer at RapiDev Part Time

November 1, 2023 - November 30, 2023

Customer-focused ticketing and support role, handling inquiries and hardware issues, logging faults, and generating reports for hardware items.

Information Systems & Communication Technology Officer at United Nations (UNECE)

April 1, 2023 - October 31, 2023

Development and deployment of the e-TIR system (70+ countries; 20,000+ messages per day). Backend with Spring Boot and PostgreSQL; frontend with React. Performance testing, Docker-based containerization, and CI/CD practices with Bamboo/Git/Bitbucket. Implemented Elasticsearch-based fast search, Kibana dashboards, and secure encryption with Java KeyStore. Mentored teammates and authored documentation.

Teaching Assistant & Tutor - Data Communications at University of Johannesburg

July 1, 2022 - November 30, 2022

Assisted 200+ students with ISO, Internet protocols, and networking topologies; helped instructors with protocol specifications and Java-based implementations; contributed to practical labs and assessment support.

Teaching Assistant - Database Design at University of Johannesburg

January 1, 2022 - June 30, 2022

Supported two professors and twenty tutors in building SQL-based database solutions; assisted ~200 second-year students with schema design, queries, and data modeling.

Assistant Lecturer - Object-Oriented Programming at University of Johannesburg

January 1, 2021 - November 30, 2021

Co-delivered introductory OOP concepts in Java/Visual Basic; built algorithms (sorting/search), GUI applications, and demonstrated code reuse and component design.