XET Group / Jan 2022 – Jan 2024

Precision starts
with the details.

Financial systems. Software testing. The foundations of reliable engineering.

Learnership → Software Development Intern → IT Consultant

C#MSSQLQAPayment gatewaysHTML
Conceptual reconstruction / architecture study
Payment gateway01Transaction records02MSSQL reconciliation03Exception review04MODEL / XET / NO PRODUCTION DATA

Reconstructed to explain the work. Not an original system screenshot.

Interactive concept / invented demo records

Reconciliation workbench

Explore the distinction between matched transactions and records requiring investigation.

CONCEPT INTERFACE
NO PRODUCTION DATA
3 demo records
Conceptual reconstruction with invented sample data; not an original employer interface.
Demo referenceGatewayLedgerState
SAMPLE-001R 250.00R 250.00Matched
SAMPLE-002R 480.00R 450.00Investigate
SAMPLE-003R 120.00R 120.00Matched

Matching values is one useful check. Missing records, timing differences and duplicates also require attention; this simplified example does not implement a payment system.

CASE STUDY / 01

Payment gateway & reconciliation

Worked on Siyakhokha payment gateway support, daily, monthly and yearly reconciliations, and financial reports from MSSQL.

My contribution

Compared transaction and accounting data, supported user queries, and helped identify missing data for financial year-end audit reporting.

Methods & tools

C# • MSSQL • Excel

CASE STUDY / 02

Internal helpdesk development

Led development of an internal helpdesk across the front end, back end, database design and documentation.

My contribution

Connected application development with technical support needs; also contributed to Strategy, Bio Time and Credit Control interfaces.

Methods & tools

Application development • Database design • Documentation

CASE STUDY / 03

Testing & technical communication

Started with black-box testing, front-end documentation and comparing datasets in Excel; learned white-box testing methodologies.

My contribution

Created technical user manuals and process walkthroughs, and tested a WhatsApp chatbot during the development internship.

Methods & tools

QA • HTML • User documentation

Check the details

Reconciliation and QA built a habit of inspecting the evidence.

Explain the system

Manuals and walkthroughs made technical workflows usable.

Own the full loop

Helpdesk work connected interface, back end and database.

Employment history and contributions verified against the supplied CV. System models are illustrative reconstructions, not original proprietary screenshots. Each page is an independent portfolio interpretation; its palette is not presented as an official employer colour specification.