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Charles Marais

@charlesmarais

Integration Engineer at Pragma connecting ERPs to Pragma On Key for 30+ clients and automating onboarding to cut manual effort by 70%+.

South Africa

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What I'm looking for

I'm seeking a Technical Project Manager, Solutions Architect or Integration Engineer role in South Africa or the UAE.

At Pragma, I connect SAP, Syspro, Business Central and other systems to Pragma On Key through REST APIs, enabling real-time data sync for 30+ clients. I also automated client onboarding end to end, reducing manual effort by 70%+.

I build integrations and workflow tools with Dell Boomi, Power Automate and Python, and deliver KPI dashboards using Wyn Reports and PostgreSQL. In my earlier Business Intelligence Engineer role at Pragma, I cut monthly reporting from six hours to one and built a Telegram bot that saved four hours per week per client.

At Machina Systems, I built OSIsoft PI dashboards and end-user tools for real-time process monitoring, and trained 12 engineers on PI infrastructure. I also contributed to digital-twin models and IoT monitoring for 200+ assets at Pragma.

I founded and run Professional Sound Services, a live-sound and audio-equipment rental business. I coordinate events with clients and venues, manage a team of DJs, and built automation tools for the business.

Experience

Work history, roles, and key accomplishments

Current

Business Intelligence Developer

Current

Pragma

Oct 2024 - Present (2 years)

Integrates third-party ERPs and systems with Pragma On Key via REST APIs, enabling real-time data sync for 30+ clients. Designs and builds applications in Dell Boomi, Power Automate and Python, automating workflows and reducing manual effort by 70%+.

Dell Boomi REST APIs Power Automate Python SAP Syspro Business Central Microsoft Teams Wyn Reports PostgreSQL CI CD

Current

Owner

Current

Professional Sound Services

Feb 2024 - Present (2 years 8 months)

Founded and runs a live-sound and audio-equipment rental business for weddings, corporate events and concerts. Manages a team of DJs and handles bookings, scheduling, equipment and on-site support.

Event Planning Team Management Audio Equipment Automation Tools

Business Intelligence Engineer

Pragma

Aug 2022 - Sep 2024 (2 years 1 month)

Built and maintained internal BI tools, cutting monthly reporting from 6 hours to 1. Integrated Eskom APIs for load-shedding alerts and developed a Python Telegram bot for client notifications.

PostgreSQL VBA Wyn Reports Python Telegram Bot API IoT Digital Twin

System Integration Specialist

Machina Systems

Jan 2022 - Jul 2022 (6 months)

Built OSIsoft PI dashboards and end-user tools for real-time process monitoring. Trained 12 engineers on PI infrastructure and created reusable display templates.

OSIsoft PI Dashboard Development Training Process Monitoring

Engineering Intern (Aerospace)

NewSpace Systems

Jan 2021 - Feb 2021 (1 month)

Updated BOMs and schematics in Altium Designer, improving revision-control accuracy.

Altium BOM Management Schematic Design

Software Engineering Intern (Fintech)

Entersekt

Jun 2019 - Jul 2019 (1 month)

Researched and applied Kubernetes in a secure-authentication project. Built a Go proof-of-concept microservice in a Scrum team.

Kubernetes Go Microservices Scrum

Education

Degrees, certifications, and relevant coursework

Stellenbosch University

Master of Engineering, Engineering Management

2025 -

Pursuing a Master of Engineering in Engineering Management on a part-time basis, with a thesis on governing agentic AI in military and defense contexts.

Stellenbosch University

Bachelor of Engineering, Electrical and Electronic Engineering

2018 - 2021

Completed a Bachelor of Engineering in Electrical and Electronic Engineering with a focus on informatics, including a final-year project on the design of a fluxgate magnetometer.