Senior Application Developer – C# / .Net

Salix Recruitment; Johannesburg; On-site; ZAR 700,000 - 1,100,000; Full time

Job summary

Salix Recruitment seeks a Senior Application Developer to design, develop and enhance business-critical applications. You will contribute across the full SDLC, from requirements through deployment and optimisation, taking ownership of technical solutions and mentoring junior developers.

The role emphasizes hands-on development in C#/.NET, REST APIs, HTML5/CSS, Blazor, SQL Server and Agile environments, with opportunities to work on enterprise-level applications and continuous improvement

Qualifications

• Must have 6–8 years of software development experience.
• Experience with C# and .NET/Core.
• Experience with REST APIs and Web APIs.
• Experience with HTML5/CSS and Blazor.
• Strong understanding of SDLC and Agile methods.

Responsibilities

• Design, develop, test and implement high-quality software applications.
• Translate business and technical requirements into robust solutions.
• Develop and maintain applications using C# and .NET.
• Build and integrate RESTful APIs and web services.
• Work with SQL Server including database development and optimisation.
• Contribute to front-end development using HTML5/CSS and Blazor.
• Participate in full SDLC and agile environments.
• Mentor and support junior developers.

Skills

Technical problem solving

Software design and development

Analytical thinking

Attention to detail

Planning and organisation

Stakeholder communication

Collaboration

Quality focused

Decision making

Ability to work under pressure

Continuous improvement

Technical leadership and mentorship

Education

Matric (Grade 12) Relevant degree, diploma or IT/software development qualification

Tools

C#

NET / .NET Core

SQL Server

REST APIs

HTML5

CSS

Blazor

Azure / Azure DevOps

CI/CD/DevOps

xUnit/NUnit

Job description

Our client is looking for an experienced Senior Application Developer to join their technology team and play a key role in designing, developing and enhancing business-critical applications.

This is an opportunity for a hands-on developer who enjoys solving complex technical problems, building scalable solutions and working closely with both technical and business stakeholders.

You will be involved across the full software development lifecycle, from understanding requirements and technical design through to development, testing, implementation and ongoing optimisation.

You'll be joining an environment where you can do more than simply write code. You'll have the opportunity to contribute to enterprise-level applications, technical solutions and continuous improvement initiatives, while working alongside experienced technology and business teams.

If you're a Senior .NET Developer who enjoys solving complex problems, building quality software and taking ownership of technical solutions, we'd like to hear from you.

Duties:

• Design, develop, test and implement high-quality software applications.
• Translate business and technical requirements into robust technical solutions.
• Develop and maintain applications using C# and .NET.
• Build and integrate RESTful APIs and web services.
• Work with SQL Server, including database development, queries and optimisation.
• Develop modern web solutions using HTML5 and CSS.
• Contribute to front-end development, including Blazor.
• Participate in the full SDLC, from requirements through to deployment and support.
• Work within Agile/Scrum/Kanban development environments.
• Identify and resolve technical issues and production problems.
• Contribute to technical design, architecture and development standards.
• Conduct code reviews and ensure adherence to development best practices.
• Write and maintain automated/unit tests.
• Work closely with Business Analysts, Architects, QA and other stakeholders.
• Mentor and support junior developers where required.
• Identify opportunities to improve application performance, quality and efficiency.

Job Experience & Skills Required:

Qualifications:

Matric (Grade 12) Relevant degree, diploma or IT/software development qualification.

Experience:

• 68 years' software development experience.
• Strong experience with C# and .NET / .NET Core.
• Experience with SQL Server.
• Strong experience developing REST APIs / Web APIs.
• Experience with HTML5 and CSS.
• Experience with Blazor or comparable modern web technologies.
• Solid understanding of the full Software Development Lifecycle.
• Experience working within Agile, Scrum or Kanban environments.
• Experience with unit testing and software quality practices.
• Strong understanding of object-oriented programming and software development principles.
• Strong analytical and problem-solving abilities.
• Advantageous Experience with Azure / Azure DevOps.
• CI/CD and DevOps experience.
• Experience with automated testing frameworks such as xUnit or NUnit.
• Experience within insurance or financial services.
• Experience with cloud technologies, microservices or enterprise application environments.
• Previous experience mentoring or guiding developers.

Skills & Competencies:

• Technical problem solving
• Software design and development
• Analytical thinking
• Attention to detail
• Planning and organisation
• Stakeholder communication
• Collaboration
• Quality focused
• Decision making
• Ability to work under pressure
• Continuous improvement
• Technical leadership and mentorship