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Ndivhuwo Munyai

NDIVHUWO MUNYAI

Business Intelligence Analyst | Business Process Automation | Business Analyst | Power Platform Developer
7+Years Experience
5Core Industries
100%Data Driven

A Data Analytics and Business Intelligence professional delivering high-impact business intelligence, automation, and application solutions. My career has spanned industry leaders across mining, energy, insurance, and technology sectors, including Sasol, Sandvik, and the Road Accident Fund.

My core expertise lies in the full Microsoft Power Platform ecosystem—architecting Power BI semantic models, building Power Apps, designing Power Automate workflows, and governing ALM lifecycle practices. I complement this with deep proficiency in DAX optimisation, Star Schema data modelling, and Azure Data Factory pipeline monitoring.

I excel at translating complex business requirements into scalable technical solutions and incorporating UX heuristics to ensure solutions are adopted, not just delivered.

Get In Touch View Printable CV

Professional Experience

Senior Officer: Operations Reporting (BI)

Mar 2025 — Present
Road Accident Fund (RAF) | Eco Glades, Centurion, Pretoria, Gauteng
  • Power Platform Pipeline Architecture: Architected and deployed an automated daily reporting pipeline using Power Automate cloud flows integrated with Office Scripts, connecting Power BI datasets to SharePoint-hosted Excel files—fully eliminating manual ad-hoc reporting cycles that previously required significant daily analyst effort.
  • TypeScript Engineering: Developed optimised TypeScript logic within Office Scripts to parse raw CSV exports, apply currency string formatting, and implement batch-processing strategies to handle large dataset volumes without triggering execution timeouts.
  • Reliability & Observability: Designed and implemented automated execution logging and structured error-reporting mechanisms within the pipeline, providing real-time visibility into flow health, reducing undetected failures, and significantly cutting reactive maintenance time.
  • Operational Reporting Governance: Established reporting standards and data refresh schedules across multiple operational dashboards, ensuring consistency and accuracy of daily KPI delivery to operations leadership.
  • Stakeholder Collaboration: Worked directly with operations managers and reporting teams to gather requirements, validate outputs, and iterate rapidly on evolving reporting needs.

Power BI Specialist (Contract)

Nov 2024 — Feb 2025
Sandvik | Pomona, Kempton Park, Gauteng
  • Print Management Dashboard: Designed and delivered a comprehensive Power BI dashboard for print management, providing granular visibility into departmental print volumes, usage trends, and cost analysis—replacing a fragmented manual process with a unified, refresh-automated reporting asset.
  • Power Apps -- Event Management: Built a full role-based event management Power App featuring meeting scheduling, calendar-based clash detection, participant user-detail capture, and role-specific navigation—eliminating reliance on manual email-and-calendar coordination.
  • Power Apps -- Course Evaluation System: Developed a configurable course evaluation Power App enabling learners to submit structured feedback covering content quality, trainer performance, and overall satisfaction, with data stored in SharePoint Lists and surfaced in a management-facing Power BI report.
  • Semantic Model Troubleshooting: Diagnosed and resolved Power BI semantic model scheduled-refresh failures, tracing root causes to gateway misconfiguration and credential expiry—restoring timely data availability across impacted dashboards.
  • Data Source Migration: Managed the migration of data sources from Excel to Microsoft Access during a broader data infrastructure consolidation, resolving connection issues and ensuring uninterrupted report refresh and data integrity.
  • Data Governance Integration: Integrated Microsoft Access UI components, SharePoint Lists, and Power BI semantic models into a cohesive data governance architecture, ensuring a single source of truth across reporting and operational systems.
  • Power Automate -- Purchase Management: Designed and deployed Power Automate flows to automate the Purchase Management reporting process, replacing manual data collation with a reliable, scheduled automation that improved both accuracy and reporting turnaround time.
  • User Enablement: Provided ongoing Power BI workspace access support, trained users on navigating assigned reports and workspaces, and documented solution architectures for sustainable handover.

Power BI Specialist

Aug 2022 — Jun 2024
Sasol | Sandton, Gauteng
  • Star Schema Data Architecture: Architected Star Schema dimensional data models underpinning four mission-critical reports—the Inventory Dashboard, CTS Report, Flash Report, and Preliminary Flash Report—consumed by both executive leadership and operational teams across the enterprise.
  • Report Modernisation: Reverse-engineered complex PowerPoint presentations and Excel workbooks into fully interactive, drill-capable Power BI reports, dramatically reducing manual report preparation time and enabling self-service analysis for stakeholders.
  • DAX Optimisation: Conducted in-depth DAX query analysis using Performance Analyser and DAX Studio, rewriting inefficient measures and calculated columns to reduce report load times and enable richer, more complex user interactivity at enterprise data volumes.
  • UX-Led Design: Applied formal UX heuristic evaluation frameworks (Nielsen's heuristics) to the design of Power BI reports, introducing consistent visual hierarchies, intuitive navigation patterns, and accessibility improvements—resulting in measurably higher end-user adoption and reduced training requirements.
  • Business Improvement: Identified and documented actionable business improvement recommendations through data analysis; these recommendations were formally reviewed and subsequently implemented by organisational leadership, demonstrating the direct business value of BI work.
  • ADF Pipeline Monitoring: Monitored and maintained Azure Data Factory (ADF) pipelines responsible for ETL data ingestion from source systems into the reporting layer, proactively identifying and resolving pipeline failures to maintain data freshness and SLA compliance.
  • Requirement Translation: Engaged directly with business stakeholders to gather, clarify, and translate functional requirements into technical BI specifications, ensuring delivered solutions matched operational and strategic needs precisely.

Business Intelligence (BI) Analyst

Nov 2020 — Nov 2021
Phonefinder | Randburg, Gauteng
  • BI Report Redesign: Redesigned the organisation's core BI reporting suite with an emphasis on improved user experience, cleaner data visualisation, and actionable layout—increasing engagement from product and commercial teams.
  • Multi-Source Reporting: Created, analysed, and distributed daily, weekly, and monthly ad-hoc reports in Microsoft Excel, drawing from multiple internal and external data sources and translating raw data into clear decision-support outputs.
  • Product Strategy Collaboration: Planned, organised, and actively participated in product strategy sessions, contributing data insights to guide roadmap priorities, pricing decisions, and volume forecasting.
  • Stakeholder Communication: Maintained efficient and accurate communication with the internal product team regarding budgets, data volumes, and KPI performance, ensuring data integrity in commercial negotiations.
  • Custom Management Reporting: Crafted tailored BI reports addressing specific analytical needs raised by senior management, demonstrating flexibility and a strong understanding of business priorities.
  • Database Administration: Established and oversaw relational databases, conducting regular maintenance, data cleansing, and integrity checks to underpin reliable reporting outputs.

Ops Support Assistant / Data Analyst

Dec 2019 — Aug 2020
Thebe-IT Consulting Services | Centurion, Gauteng
  • Reporting Automation: Implemented a Data Usage Reports Automation solution, eliminating time-consuming daily manual calculations and delivering consistent, accurate reports without analyst intervention.
  • Process Mapping: Mapped and documented end-to-end communication flows across operational processes, publishing structured documentation to SharePoint for stakeholder access and knowledge retention.
  • Power BI Development: Developed a Tank Level Report using Microsoft Power BI, providing operations teams with real-time visibility into tank inventory levels, replacing manual monitoring processes.
  • SAP Data Retrieval: Retrieved and reconciled business-critical operational data from SAP for team members and stakeholders, supporting both day-to-day operations and audit requirements.
  • Matrix Report Consolidation: Consolidated and distributed a monthly Matrix Report to appropriate internal and external parties, ensuring accurate and timely management information delivery.
  • ATG Delivery Reconciliation: Compared the Monthly ATG Deliveries Report against SAP delivery records, identifying and flagging discrepancies for investigation—directly supporting inventory accuracy and financial reconciliation.
  • Database Hygiene: Conducted structured database cleanup activities to reduce data redundancy, eliminate duplicate records, and enhance overall data integrity across operational datasets.

YES Learner -- Business Intelligence & ETL Development

Nov 2018 — Nov 2019
Sasol | Sandton, Gauteng
  • ETL Monitoring Report: Developed an ETL Monitoring Report using Microsoft Power BI to track pipeline executions, enabling the data engineering team to identify failures and latency issues proactively.
  • Process Flow Modelling: Modelled and documented various process communication flows, contributing to the organisation's process improvement and operational transparency initiatives.
  • Mandate of Change Documentation: Documented the Mandate of Change for operational process improvements, providing a structured record for governance and audit purposes.
  • SAP Administration: Administered procurement workflows through the SAP system, executing key transaction codes including ME51N (Create Purchase Requisition), ME52N (Change PR), ME53 (Display PR), ME2L (Purchase Orders by Vendor), and ME3L (Outline Agreements per Vendor).
  • MySasol App Development: Created and consolidated HTML markups for the MySasol internal application and uploaded them into the platform, contributing directly to the internal digital experience.
  • Team Leadership: Led a team of fellow YES Learners in creating HTML markups for the MySasol App, demonstrating early leadership, coordination, and delivery accountability.
  • Data Reconciliation: Reconciled data from multiple Retail sites to identify discrepancies and ensure consistent, accurate reporting to commercial stakeholders.
  • Business Gap Analysis: Supported senior Business Analysts in identifying operational gaps, providing data-backed recommendations, and managing operational service tasks on their behalf.

Key Projects & Architecture

RAF Reporting Automation Pipeline

2025
Senior Officer: Operations Reporting (BI) | Road Accident Fund

End-to-end automated reporting pipeline eliminating manual BI operations

Power BI Power Automate Office Scripts SharePoint
  • Problem: Daily operational reports were manually generated; High risk of human error and reporting delays.

Sandvik Print Management Dashboard

2024
Power BI Specialist | Sandvik

Unified analytics platform for enterprise print cost visibility

Power BI DAX Microsoft Access
  • Problem: No centralized visibility into print usage and costs; Fragmented manual processes.

Event Management Power App

2024
Power Platform Developer | Sandvik

Role-based application replacing manual scheduling processes

Power Apps SharePoint Power Automate
  • Problem: Manual meeting coordination caused scheduling conflicts; Inefficient communication.

Sasol Executive Reporting Suite

2022--2024
Power BI Specialist | Sasol

Enterprise BI reporting supporting executive decision-making

Power BI DAX Azure Data Factory SQL
  • Problem: Heavy reliance on manual Excel and PowerPoint reporting; Limited interactivity and slow reporting cycles

ETL Monitoring Report

2019
BI Developer | Sasol (YES Programme)

Real-time monitoring system for data pipeline health

Power BI Azure Synapse / SQL
  • Problem: No visibility into ETL pipeline performance and failures.

Core Competencies

Power Platform

Power BI Architecture & Governance
Power Apps (Canvas & Model-Driven)
Power Automate & Cloud Flows
Power Platform ALM & Lifecycle Mgmt
Workspace & Capacity Management
Data Gateway Configuration

Data Modelling & ETL

DAX Query & Measure Optimisation
Star Schema / Dimensional Modelling
Semantic Model Design (PBIX/PBISM)
ETL Pipeline Design & Optimisation
Azure Data Factory (ADF) Monitoring
Row-Level Security (RLS) Design

Strategy & UX

UX Heuristics for BI Dashboards
Report Performance Tuning
Stakeholder Requirements Gathering
Cross-functional Team Collaboration
SharePoint & Dataverse Integration
Data-Driven Culture Advocacy

Skill Proficiency

Industry Experience

Education & Certifications

BSc Honours in Computing

University of South Africa (UNISA) | Pretoria, ZA | Jan 2025 -- Present

Bachelor of Science in Computer Science and Information Systems

University of Venda | Thohoyandou, Limpopo, ZA | Jan 2014 -- May 2018

National Senior Certificate (Grade 12)

David Mutshinyalo Secondary School | Tswera, Limpopo, ZA | 2009 -- 2013

Microsoft Certified

Power BI Data Analyst Associate

Verify Credential

K2 Five Core

Certified Specialist

View Certificate

Diploma in Web Development

Professional Certification

View Certificate

Digital Marketing

Professional Certification

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Data Analytics

Introduction to Data Analytics

View Certificate

Tableau

Essential Training 2020.1

View Certificate

Artificial Intelligence

Introduction to AI

View Certificate

Business Analytics

Analytics with Excel

View Certificate

Advanced Power BI

NASBA Certificate

View Certificate

Word & PowerPoint

Microsoft Office Specialist

View Certificate

Excel Level 2 & 3

Advanced Excel Certification

View Certificate

Get In Touch

If you have an opportunity that aligns with my expertise, please use the form or details below to get in touch. I look forward to exploring how my skills can bring value to your organization.

zwivhuyaex@gmail.com +27 (79) 630 0952
Pretoria, Gauteng, ZA