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Senior C# API developer

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Onsite

Senior C# API developer

Mukon Informatics (Pty) Ltd

Senior C# API developer

Skills

C#.NETGitGitHub

2 months ago

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Important information


Contract type:

Permanent

Location:

Pretoria, South Africa

Work mode:

Onsite

Published on:

1 September 2026

What they need


We are looking for a skilled senior C# API developer.

You will be working closely with the software architect in creating efficient, scalable and distributed services for our next generation system.

Our team fosters a culture of learning and experimentation.

Key Responsibilities:

System Development:

Work in a focused team of API and Front-End developers in building scalable distributed systems.

Version Control (Git/GitHub):

Utilise feature-based branching and effective Git workflows.

Proper pull-request etiquette, including understanding the use-case and performing thorough local testing prior to merging.

Quality & Standards:

Apply best practices and design patterns to ensure code quality, maintainability, and scalability.

Performance & Data access:

Understand performance implications of queries through an ORM, specifically Entity Framework.

Collaboration & Design:

Collaborate with the architect: work effectively from technical specifications and actively discuss implementation detail to find the optimal solution.

Actively share ideas and provide constructive input on best technical approaches.

Mentorship:

Participate in sessions focused on teaching other developers best coding practices and patterns.

Agile Prioritisation:

Actively participate with the team in refining and prioritising development features for the sprint.

Required Experience & Qualifications

Experience:

7-10 years of professional experience in developing applications, with a strong focus on building RESTful APIs using C#.

Culture:

Strong willingness to learn new technologies and actively share knowledge with teammates.

Technical Skills:

Core Development:

Expertise in C# and .NET Core

Design patterns and best practices:

SOLID Principles

Clean architecture

Version Control:

Experience in Github and feature-based branching.

Quality Control

Unit testing

End-to-end testing

API Optimisation & Data Access:

Strong understanding of data access and API optimisation techniques including:

Identifying and resolving N+1 problems with database access.

Exposure to patterns like CQRS.

Managing Lazy vs. Eager data access strategies.

Proper Object disposal and resource management.

Distributed Systems:

Experience in asynchronous communication, concepts of eventual consistency, and working knowledge of building and maintaining distributed systems.

Soft Skills:

Excellent problem-solving and analytical abilities.

Ability to work independently or as part of a team.

Strong verbal and written communication skills.

Ability to understand context and self-prioritise sprint features.

Nice to Have

Experience in:

Code modernisation for cloud.

API Hardening practices.

CICD Pipeline.

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