Software Developer (.NET & API Security)

Software Developer (.NET & API Security)

Location: Johannesburg, South Africa

Work Model: Fully Remote

Duration: 12 months fixed-term contract

Overview:

• Our client is seeking a highly skilled .NET Developer to join their technology team.

Ideal Candidate:

• Must have a solid background in developing secure, scalable, and high-performance applications using Microsoft technologies and other scripting languages, coupled with strong database and front-end experience.
• Will be responsible for developing, and maintaining internal systems and APIs, ensuring data integrity and application security across all platforms.

Key Responsibilities:

• Develop and maintain .NET applications, including API and GUI layers.
• Design, build, and secure RESTful APIs for internal and external integrations.
• Implement best-practice security standards across all application components.
• Collaborate with business analysts and other developers to define technical requirements and deliver high-quality solutions.
• Work with Entity Framework and SQL Server to develop efficient data access layers and optimize performance.
• Develop and maintain responsive front-end interfaces using React or similar JavaScript frameworks.
• Participate in code reviews, testing, and deployment processes.
• Troubleshoot, debug, and maintain existing codebases.
• Maintain accurate technical documentation.

Required Technical Skills:

• .NET Framework / .NET Core – strong proficiency in C#.
• API Development – RESTful services, authentication, and authorization (OAuth2, JWT, etc.).
• Security – application-level and API-level security implementation experience.
• GUI Development – Windows Forms, WPF, or ASP.NET MVC front-ends.
• Entity Framework – ORM design, code-first and database-first approaches.
• SQL Server – stored procedures, performance tuning, and schema design.
• Front-end Scripting Languages – ReactJS, JavaScript, TypeScript, HTML5, and CSS3.
• Familiarity with version control systems (Git).

Qualifications:

• Minimum 3–5 years' professional experience as a .NET Developer.
• Proven record of delivering secure and reliable enterprise solutions.

Soft Skills:

• Analytical thinker with strong problem-solving abilities.
• Excellent communication and teamwork skills.
• Strong attention to detail and code quality.
• Self-motivated and adaptable to changing priorities.