Shawn Mawelewele
Senior Software Engineer
Pretoria,Gauteng
Summary
Dynamic and results-driven Senior Software Engineer with 5+ years of experience designing and delivering scalable, secure, and cloud-native software solutions across AI, Fin-Tech, and enterprise environments. Proven ability to lead software teams, architect high-performing systems, and implement modern cloud infrastructures using Microsoft Azure. Experienced in end-to-end delivery of full-stack applications, AI-assisted search with RAG (Retrieval-Augmented Generation), and vector database integration for intelligent data retrieval. Skilled in engaging stakeholders and translating business needs into technical requirements. Passionate about leveraging advanced technologies to solve complex problems and deliver measurable value.
Overview
5
5
years of professional experience
Work History
Intermediate Software Engineer
APEXBI
04.2023 - Current
- Company Overview: Remote (UK-based)
- Integrated APIs daily with third-party companies both locally and internationally
- Wrote SQL stored procedures that interface with APIs and internal front-end frameworks
- Built and maintained internal frameworks to accelerate product roll-outs based on demand
- Optimized queries in large SQL databases for efficient report generation
- Engaged stakeholders to gather and translate business requirements into technical specifications
- Mentored junior developers and promoted engineering best practices
- Remote (UK-based)
Software Engineer
Gamesmart
10.2022 - 03.2023
- Company Overview: Centurion, South Africa
- Programmed a bill validator in C++ to process bank notes and update a SQL database
- Integrated validator functionality into an API solution for remote/casino credit processing
- Implemented communication protocols using RS232 with Slackware OS on Raspberry Pi
- Centurion, South Africa
Software Engineer
CSIR
05.2021 - 09.2022
- Company Overview: Pretoria, South Africa
- Reviewed project specifications and designed performant technology solutions
- Developed a mobile application using RFID to identify and track assets
- Created a Windows-based admin portal using C# and .NET Framework
- Built and tested a Python-based facial recognition system for client deployment
- Authored user manuals to support adoption of developed features
- Developed and maintained web applications to enhance existing solutions
- Pretoria, South Africa
Software Engineer Intern
CSIR
01.2020 - 03.2021
- Company Overview: Pretoria, South Africa
- Collaborated with cross-department teams on software development projects
- Built a fingerprint biometric system using PHP and C++
- Developed wireless modules for embedded system communication over HTTP
- Created a touchless biometric system using Raspberry Pi 4 and USB camera
- Built web and desktop applications to support biometric solutions
- Pretoria, South Africa
Education
Diploma - Electrical, Electronics And Communications Engineering
Tshwane University of Technology
04.2001 -
Skills
Full-Stack Engineering
Cloud Architecture
API Integration & Microservices
Vector DB & RAG-based Search Systems
SQL & NoSQL Data Optimization
CI/CD & DevOps
FinTech Systems
Stakeholder Engagement & Business Requirement Translation
Agile Leadership
Technical Mentorship
Cross-functional Collaboration
C#
Python
JavaScript
SQL
undefinedTech Stack
C#, Python, JavaScript, SQL, Java, C++, .NET 6/7, ASP.NET Core, React, LangChain, Azure (App Services, Blob, Functions, CosmosDB, DevOps), SQL Server, PostgreSQL, Pinecone, Redis, Docker, Git, Azure DevOps, Swagger, Postman, RS232, OAuth2, REST, WebSockets
Selected Projects
- AI Assistant for Document Intelligence, 2023, Built a RAG architecture (OpenAI + LangChain + Pinecone) for FinTech Q&A.
- Smart Billing Gateway, 2022, Designed .NET Core multi-tenant API for 50k+ monthly transactions.
Timeline
Intermediate Software Engineer
APEXBI
04.2023 - Current
Software Engineer
Gamesmart
10.2022 - 03.2023
Software Engineer
CSIR
05.2021 - 09.2022
Software Engineer Intern
CSIR
01.2020 - 03.2021
Diploma - Electrical, Electronics And Communications Engineering
Tshwane University of Technology
04.2001 -
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