Experience, without the theatre.

C#/.NET, TypeScript, React and delivery proof, arranged for a quick recruiter review.

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First page preview of Gontse Sebolai's CV

Technical range.

Broad enough to work across a product; grounded enough to know where deeper specialist guidance matters.

Languages

C# / TypeScript / JavaScript / Python / Kotlin / Java / SQL / HTML / CSS

Frameworks & Architecture

ASP.NET Core / Spring Boot / FastAPI / React / Angular / Next.js (App Router) / Jetpack Compose

Databases

SQL / PostgreSQL / SQL Server / SQLite / Entity Framework Core / Room / Relational Schema Design

Platforms & Delivery

Docker / GitHub Actions / Terraform / Kafka / Azure / Supabase / Git

Development Practices

SDLC / Agile / REST APIs / CI/CD / Event-Driven Systems / Observability / Algorithmic Problem Solving

Testing & Quality

xUnit / JUnit / Testcontainers / pytest / Playwright / Vitest / Ruff / mypy / ESLint

Work history.

Client delivery and structured academic development, read as one continuous practice.

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 implementation, handover and release coordination.

Built and delivered client work 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
Contributed to native Android applications using Kotlin and Jetpack Compose within academic team projects
Worked in Agile academic teams with peer code reviews and sprint retrospectives

Education.

Expected completion: 2026

Bachelor of Computer and Information Sciences (Web & Application Development)

Varsity College / Emeris

Completed 2023

Higher Certificate in Mobile App and Web Development

Varsity College / Emeris

Completed 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

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