Available for freelance & contract work

Andile Khumalo
Software Developer

Freelance full-stack developer based in Cape Town, building reliable software with .NET and React — full stack delivery, API design, and cloud architecture.

Building Reliable Software with Purpose

I'm a full-stack software engineer passionate about crafting reliable, maintainable solutions that solve real problems. With expertise in .NET and React, I focus on quality-first development practices where every line of code is intentional and tested. I believe that technical excellence stems from understanding both the business context and user needs—writing code that not only works today but scales gracefully tomorrow.

Core Values

  • Quality FirstClean, well-tested code that prioritizes readability and maintainability over quick fixes
  • ReliabilityBuilding systems that perform consistently under pressure and scale with confidence
  • Technical LeadershipMentoring others and elevating team standards through best practices and knowledge sharing

Services

Comprehensive solutions tailored to your development needs

Full Stack Development

End-to-end application development using modern frameworks. I build responsive frontends with React and robust backends with .NET, ensuring seamless integration and optimal performance across all components.

API Design & Integration

RESTful and scalable API design with comprehensive documentation. I create well-structured endpoints that follow industry best practices, ensuring reliability and ease of integration for client applications.

Cloud Architecture

Designing and implementing cloud solutions for scalability and reliability. I leverage cloud platforms to build distributed systems that handle growth efficiently while maintaining cost-effectiveness and security.

DevOps & Deployment

Continuous integration and deployment pipeline setup. I automate build, test, and release processes to enable rapid, reliable deployments while maintaining code quality and system stability.

System Design & Architecture

Strategic planning for complex software systems. I design scalable architectures that balance performance, maintainability, and business requirements, ensuring solutions grow with your needs.

Performance Optimization

Identifying and eliminating bottlenecks in applications. I analyze code, databases, and infrastructure to improve speed and efficiency, delivering faster load times and better user experiences.

Tech Stack

Technologies and tools I work with

📝

Languages

C#
TypeScript
JavaScript
Python
Java
SQL
🎨

Frontend

React
Vue
Angular
HTML5
CSS3 / SCSS
Tailwind CSS
⚙️

Backend

ASP.NET Core
.NET
Entity Framework Core
REST APIs
💾

Database

SQL Server
PostgreSQL
☁️

Cloud & DevOps

Microsoft Azure
Docker
CI/CD
🤖

AI & Agents

Claude API
AI Agents
LLM Integration
Anthropic SDK
Prompt Engineering
🛠️

Tools

Git
GitHub
Azure DevOps
Postman
Visual Studio
JIRA

Professional Experience

June 2024 – Present

Advania SA

Software Developer

  • Lead end-to-end delivery of high-complexity features across the full stack
  • Mentor new team members and provide technical coaching
  • Built reusable pagination and infinite-scrolling patterns adopted across the product
  • Own the User Management area and its Auth0 identity implementation
June 2024 – Present
Feb 2023 – May 2024

Clickatell

Junior Developer / Software Graduate Developer

  • Contributed to API integrations and user-journey design
  • Managed complex third-party API integrations and data mapping
  • Helped reduce R&D costs through resource optimization
  • Maintained change tracking and documentation in JIRA
Feb 2023 – May 2024
Jun 2022 – Jan 2023

Bull Tech Services

Intern Developer

  • Worked across full project lifecycles, from requirements to delivery
  • Provided technical support and maintained web content
  • Built foundational skills in problem-solving and team collaboration
Jun 2022 – Jan 2023

Timeline showing 3 professional experience entries

Education

Academic background

2022

National Diploma, Information Technology

Mangosuthu University of Technology

Foundation in software development, database design, and IT systems, with practical coursework in web and desktop application development.

2017

National Senior Certificate

Brettonwood High School

Academic focus on mathematics, science, and information technology.

Featured Projects

Showcase of completed work and technical solutions

Budget Buddy

Completed

A modern, intuitive personal finance management application built with React and TypeScript.

Problem

Many people struggle to manage their finances effectively and lack visibility into their spending patterns.

Solution

Built a finance management platform with real-time dashboards, budget tracking, transaction categorization, and actionable financial insights.

Technologies

React 18TypeScriptViteTailwind CSSshadcn/uiRecharts+2 more

Key Achievements

  • Shipped a feature-complete MVP covering budgeting, transactions, and goals
  • Built a reusable charting layer for insights and analytics

Real-Time Task Manager

Completed

A web-based real-time task management application with team collaboration built in.

Problem

Teams lose time with task tools that require a manual refresh to see updates, leading to miscommunication and duplicated work.

Solution

Built a real-time task management platform using SignalR for instant two-way communication between the ASP.NET Core backend and every connected client.

Technologies

ReactTypeScriptViteMaterial UIAxiosSignalR+1 more

Key Achievements

  • Implemented a production-style SignalR integration end to end
  • Handled reconnection and network-disconnection edge cases

Let's Work Together

Get in touch for freelance opportunities or project inquiries

I'm always interested in hearing about new projects and opportunities. Whether you have a question or just want to say hello, feel free to reach out. I'll do my best to respond within 24 hours.

Email

d.langelihlekhumalo@gmail.com

Or connect on social media

Typically responds within 24 hours

Andile Khumalo

Software Developer

Full Stack Developer specializing in .NET and React

Connect

© 2026 Andile Khumalo. All rights reserved.

Built with React, TypeScript & Tailwind CSS.