Senior .NET Developer

LINKFIELDS INNOVATIONS (PTY) LTD; Johannesburg; On-site; ZAR 700,000 - 900,000; Full time

Job summary

A leading tech development firm based in Johannesburg is seeking an experienced Senior .NET Developer. This role involves designing, developing, and maintaining robust applications using .NET technologies. The ideal candidate will have over 5 years of experience with a strong grasp of front-end technologies and cloud services. Key responsibilities include leading development projects, integrating APIs, and ensuring application security. This position offers the opportunity to work in a dynamic environment with a collaborative team.

Qualifications

• 5+ years of experience in .NET development required.
• Strong understanding of OOP and design patterns.
• Familiarity with DevOps practices and CI/CD pipelines.

Responsibilities

• Design, develop, test, and maintain .NET applications.
• Collaborate to create scalable solutions.
• Guide junior developers in technical discussions.

Skills

C#

ASP.NET Core

HTML

CSS

JavaScript

Angular or React

SQL

Python

Problem-solving

Communication

Education

Certification in Microsoft technologies

Tools

Entity Framework

LINQ

SQL Server

Azure

Docker

Kubernetes

Power BI

Job description

We are seeking a highly skilled and experienced Senior .NET Developer to join our dynamic development team. The ideal candidate will be responsible for designing, developing, and maintaining high-quality applications using the .NET framework. You will work closely with cross-functional teams to deliver scalable, robust, and secure solutions.

Responsibilities and Duties

• Design, develop, test, and maintain .NET applications and services.
• Collaborate with software architects and product managers to create scalable solutions.
• Lead technical discussions and guide junior developers.
• Ensure application security, performance, and reliability.
• Develop RESTful APIs and integrate third-party services.
• Work with SQL and NoSQL databases for efficient data management.
• Maintain code quality through best practices, including unit testing and code reviews.
• Troubleshoot, debug, and optimize existing applications.
• Stay updated with emerging technologies and trends in .NET development.

Desired Experience & Qualification

• 5+ years of experience in .NET development (C#, ASP.NET Core, .NET Framework).
• Proficiency in front-end technologies (HTML, CSS, JavaScript, and frameworks like Angular or React).
• Strong understanding of object-oriented programming (OOP) and design patterns.
• Experience with cloud platforms (Azure/AWS) and microservices architecture.
• Hands‑on experience with Entity Framework, LINQ, and SQL Server.
• Proficient in API development, authentication, and security best practices.
• Familiarity with DevOps practices, CI/CD pipelines, and containerization (Docker/Kubernetes).
• Understanding of Power BI for data visualization and analytics.
• Experience with Python for scripting and automation tasks.
• Excellent problem‑solving skills and attention to detail.
• Strong communication and collaboration abilities.
• Experience with Agile methodologies (Scrum/Kanban).
• Certification in Microsoft technologies is a plus.
• Exposure to test-driven development (TDD) and automated testing frameworks.