Senior .NET Backend Engineer — Hybrid (Azure, REST APIs)

Tumaini Consulting; Gauteng; Hybrid; ZAR 700,000 - 900,000; Full time

Job summary

Together Staffing group is seeking a Senior .NET Engineer – Backend Focused, based in Midrand with a hybrid work model (3 days in office per week). The role requires deep backend expertise in ASP.NET Core and C#, plus frontend React experience, API design, and cloud familiarity.

Applicants should have 5–7 years of software development, strong testing discipline, and the ability to mentor juniors. Apply via [e-mail] or visit our website for more details.

Qualifications

• 5–7 years professional software development experience.
• Backend experience with ASP.NET Core and C# (3+ years).
• Frontend experience with React (2+ years).
• Proficient in designing and consuming RESTful APIs.
• Experience with SQL and NoSQL databases.
• Cloud experience (Azure preferred).
• Strong understanding of software architecture, clean code, integration, and testing practices.
• Experience with unit and integration testing.
• Ability to optimise applications for performance, scalability, and maintainability.
• Degree in computer science, software engineering, or related field.
• Comfortable working in agile teams (sprint planning, stand-ups, retros).
• Ability to mentor junior developers and participate in code reviews.
• Willingness to complete technical assessments.

Responsibilities

• Develop backend features using .NET and ASP.NET Core.
• Design and consume RESTful APIs and integrate with frontend services.
• Collaborate in agile sprints and participate in planning and stand-ups.
• Mentor junior developers and participate in code reviews.
• Focus on performance, scalability, and maintainability of applications.
• Prepare and conduct technical assessments as needed.

Skills

Backend development

C#

ASP.NET Core

React

REST APIs

SQL

NoSQL

Azure

Unit testing

Integration testing

Agile

Mentoring

Education

Bachelors in Computer Science/Software Engineering

Job description

Together Staffing group is seeking a Senior .NET Engineer – Backend Focused, based in Midrand with a hybrid work model (3 days in office per week). The role requires deep backend expertise in ASP.NET Core and C#, plus frontend React experience, API design, and cloud familiarity.

Applicants should have 5–7 years of software development, strong testing discipline, and the ability to mentor juniors. Apply via [e-mail] or visit our website for more details.