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About Me I’m a full-stack developer who specialises in building custom software, automation systems, and AI-powered tools that help businesses work smarter. I focus on delivering practical, scalable solutions — from internal business platforms and retail systems to full web applications and backend infrastructures. With strong experience in the retail technology space, I’ve worked on systems for stock monitoring, invoice automation, CCTV/AI integrations, and complete operational dashboards. What differentiates me is my ability to understand both the business and the technical side: I don’t just write code — I solve real operational problems with clean, modern solutions.…About Me I’m a full-stack developer who specialises in building custom software, automation systems, and AI-powered tools that help businesses work smarter. I focus on delivering practical, scalable solutions — from internal business platforms and retail systems to full web applications and backend infrastructures. With strong experience in the retail technology space, I’ve worked on systems for stock monitoring, invoice automation, CCTV/AI integrations, and complete operational dashboards. What differentiates me is my ability to understand both the business and the technical side: I don’t just write code — I solve real operational problems with clean, modern solutions.

PJ Pretorius

Back-End Developer, Full Stack Developer, Web Developer, +2

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About Me I’m a full-stack developer who specialises in building custom software, automation systems, and AI-powered tools that help businesses work smarter. I focus on delivering practical, scalable solutions — from internal business platforms and retail systems to full web applications and backend infrastructures. With strong experience in the retail technology space, I’ve worked on systems for stock monitoring, invoice automation, CCTV/AI integrations, and complete operational dashboards. What differentiates me is my ability to understand both the business and the technical side: I don’t just write code — I solve real operational problems with clean, modern solutions.…About Me I’m a full-stack developer who specialises in building custom software, automation systems, and AI-powered tools that help businesses work smarter. I focus on delivering practical, scalable solutions — from internal business platforms and retail systems to full web applications and backend infrastructures. With strong experience in the retail technology space, I’ve worked on systems for stock monitoring, invoice automation, CCTV/AI integrations, and complete operational dashboards. What differentiates me is my ability to understand both the business and the technical side: I don’t just write code — I solve real operational problems with clean, modern solutions.

Available to hire

George, South Africa

About Me

I’m a full-stack developer who specialises in building custom software, automation systems, and AI-powered tools that help businesses work smarter. I focus on delivering practical, scalable solutions — from internal business platforms and retail systems to full web applications and backend infrastructures.

With strong experience in the retail technology space, I’ve worked on systems for stock monitoring, invoice automation, CCTV/AI integrations, and complete operational dashboards. What differentiates me is my ability to understand both the business and the technical side: I don’t just write code — I solve real operational problems with clean, modern solutions.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Java

Intermediate

Language

Afrikaans

Fluent

English

Fluent

Work Experience

Backend Systems Engineer at Tsolo Storage Systems

October 1, 2024 - Present

Utilized Python, FastAPI, and Docker to develop high-throughput backend services for a petabyte-scale data ingestion infrastructure supporting critical scientific data transfers. Architected and maintained scalable data ingestion pipelines for the MeerKAT Radio Telescope, ensuring fault tolerance and real-time monitoring through robust backend APIs. Integrated distributed storage backends (iRODS, Rucio, Ceph-backed S3) to support mission-critical datasets for astronomical research. Wrote and maintained backend Python services and shell scripts for scheduled ingest, replication, verification, and error handling across heterogeneous environments. Implemented PostgreSQL-backed metadata and job tracking systems leveraging JSON configurations to enhance service scalability and provide real-time insights. Troubleshot low-level failures using log analysis, iRODS rules, and network packet inspection. Collaborated with cross-functional teams to ensure timely delivery and accurate communication

Full-Stack Developer at Orilla

July 1, 2024 - October 1, 2024

Spearheaded the installation and maintenance of smart devices using SSH, ensuring seamless integration of PyTorch, CUDA, DeepStream, and TensorRT for AI-driven functionalities. Developed and deployed a Telegram Bot for managing AI-based human detection systems, incorporating AWS enhanced reliability in detection processes. Engineered advanced scheduling features for detection systems, optimizing user experience through customization and real-time interaction. Collaborated with security firms to facilitate the deployment and training of AI-enabled devices, enhancing user safety.

Software Developer at OK Retail Group

July 1, 2022 - December 1, 2022

Developed a digital receipt management system integrated with accounting systems, reducing paper usage and supporting green initiatives. Automated receipt delivery and implemented a credit-based loyalty system, boosting customer retention and aligning with environmental goals. Designed a loyalty program within the digital receipt platform, enhancing customer engagement and promoting sustainable practices. Led the development of a delivery web app with real-time order tracking and AWS hosting, creating a new revenue stream and supporting franchise expansion.

Web Developer at NN Bus Service

January 1, 2022 - June 1, 2022

Led the development of 'smart-pages' for real estate, integrating live renders and dynamic content, which boosted user engagement and conversion rates. Implemented real-time property customization, enabling buyers to personalize and view finishes directly from the web interface. Maintained a digital receipt web app, seamlessly integrated into the e-commerce system, supporting sustainability goals and enhancing the company's tech-forward image.

Software Developer at Silverstone Solutions

July 1, 2022 - December 1, 2022

Developed and maintained user interfaces on the CMS, utilizing Python to enhance functionality and user interaction. Engineered a GeoLocation API that generated heatmaps for global ad campaign performance, enabling targeted marketing efforts. Integrated the Maps API with the Python-based CMS, successfully extracting and visualizing user coordinates to drive data-driven decision-making. Overcame technical challenges related to data extraction and visualization, delivering a robust solution that improved marketing accuracy.