Full-Stack Engineer, Secure Web Platform

Indsafri; South Africa; On-site; ZAR 600,000 - 800,000; Full time

Job summary

A technology firm in South Africa seeks a Full Stack Developer to design and build an automated penetration testing platform. Key responsibilities include creating a secure self-service web interface, integrating APIs, and maintaining the core automation layer. Candidates should possess strong skills in C#, .NET, PostgreSQL, and front-end frameworks such as React or Angular. With a focus on both backend and frontend development, this role requires at least 5 years of experience in development, particularly in security or fintech environments.

Qualifications

• 5+ years frontend and backend development experience.
• Experience in security, fintech, or cloud exposure.
• Experience with dashboards and automation.

Responsibilities

• Design a secure, intuitive self-service web interface for a penetration testing platform.
• Translate complex workflows into usable, compliant UX.
• Build maintain core orchestration and automation layer.

Skills

C#

.NET

ASP.NET MVC

ASP.NET Core

PostgreSQL

Microsoft SQL Server

React

Angular

T-SQL

Entity Framework

RESTful APIs

Python

Java

FastAPI

Spring Boot

MaterialUI

Job description

Design and build a secure, intuitive self-service web interface for an automated penetration testing platform.

The developer will:

• Translate complex workflows into a usable, compliant and auditable user experience.
• Build and maintain the core orchestration, integration and automation layer for the testing platform.
• API integration to the backend systems.

Required Skillsets

Full Stack Developer with the following skills and experience:

Technical Skills

• Strong experience in C#, .NET, ASP.NET MVC, and ASP.NET Core.
• Experience with PostgreSQL or Microsoft SQL Server.
• Proficiency in front-end development, with a strong focus on React and/or Angular.
• Solid understanding of SQL databases, with experience in writing and optimizing T-SQL queries.
• Familiarity with Object Relational Mapping (ORM) technologies (e.g., Entity Framework).
• Experience working with RESTful APIs.
• Excellent problem-solving and analytical skills.
• Strong communication and collaboration abilities.
• Ability to work independently as well as contribute effectively within a team.

Front-End Developer

• Secure UI Design
• UX for security workflows
• RBAC-aware UI rendering
• Accessibility & enterprise UX patterns
• Experience with PostgreSQL or Microsoft SQL Server

Frameworks: Next.js, React.

UI Libraries: MaterialUI.

API Integration: API Integration, REST or GraphQL.

Back-End Developer

• API Design
• Distributed systems
• Service-to-service communication
• Retries
• Tool Integrations
• Workflow state management

Languages: Python, Java.

Frameworks: FastAPI (Python), Spring Boot (Java).

UI Libraries: MaterialUI.

Experience & Qualification

• 5+ years frontend, backend development experience.
• Exposure to security, fintech or cloud.
• Experience with dashboards, automation.

Skills