Work &
experience.
The goal is to build things that last.
Download CV- Role target
- Graduate / junior full-stack developer
- Base
- Johannesburg, Gauteng
- Availability
- Available
- Reply window
- Within 24h
Summary
I'm a graduate / junior full-stack developer based in Johannesburg, South Africa. I'm currently completing my degree in Computer and Information Sciences, specialising in Web and Application Development. Alongside that, I've been shipping web and mobile apps - from payment-enabled experiences for non-profits to native Android tools that help students manage their study time. I work across the stack with C#, ASP.NET Core, React and Next.js, with a focus on maintainable software that solves the problem at hand. When I'm not at my desk, I'm usually supporting Arsenal FC, gaming competitively, or working towards my next personal or technical goal. Through Dev404 Labs, I have delivered software for local organisations and businesses. I am currently open to graduate and junior full-stack developer roles in South Africa.
Skills
Languages
C#, TypeScript, JavaScript, Python, Kotlin, Java, SQL, HTML, CSS
Frameworks & Architecture
ASP.NET Core MVC, React, Next.js (App Router), Jetpack Compose, Tailwind CSS, Bootstrap
Databases
SQL, PostgreSQL, SQL Server, SQLite, Entity Framework Core, Room, Relational Schema Design
Cloud & Tools
Azure (Blob Storage, Tables, Queues, Event Hubs), Supabase, Git, GitHub, Vite
Development Practices
SDLC, Agile, API Integration, Algorithmic Problem Solving, Component-Driven Architecture
Testing & Quality
Playwright, Jest, Testing Library, Vitest, jest-axe, ESLint
Work History
2024 – Present
Freelance Software Developer
Dev404 Labs (Self-employed)
Delivering web applications for South African brands, non-profits and small businesses. Managing the project lifecycle from requirements gathering through deployment.
- Built and delivered 4+ client projects across React, Next.js, and static site stacks
- Managed client relationships, timelines, and iterative feedback cycles
- Integrated payment and database-backed workflows using Paystack and Supabase
2022 – 2026
Academic Project Developer
Varsity College
Developed full-stack applications across web and mobile platforms as part of the Web and Application Development programme, following structured methodologies and industry best practices.
- Built ASP.NET Core applications with role-based access control and audit logging
- Developed a Python Entelect GP hackathon solver with validation, scoring and deterministic optimisation checks
- Developed native Android applications using Kotlin and Jetpack Compose
- Collaborated in Agile team environments with peer code reviews and sprint retrospectives
Education
2026
Bachelor of Computer and Information Sciences (Web and Application Development)
Varsity College
2023
Higher Certificate in Mobile App and Web Development
Varsity College
2021
Matric
Curro Helderwyk
Leadership
2025
Sports Committee Member
Varsity College / Emeris Sandton
- Contributed to the organisation and coordination of campus sporting activities and events
- Supported communication between students and institutional leadership
2025
eSports Team Captain & Administrator
Varsity College / Emeris Sandton
- Led and coordinated university eSports teams across multiple competitive fixtures
- Managed team logistics, scheduling, and communication
- Represented the institution at USSA (University Sports South Africa) and Varsity eSports Cup tournaments
Download the
CV packet.
A concise CV for graduate and junior full-stack opportunities, with project evidence, technical stack and contact details ready for recruiter review.
- Document
- Gontse Sebolai CV
- Role focus
- Graduate / junior full-stack
- Next step
- Open to interviews
- Base
- JHB, ZA