Mid Level C# Developer

Phoenix Medical Supplies; Noordwes; On-site; ZAR 300 000 - 400 000; Full time

Job summary

A healthcare supply company is seeking a Mid-level C# Engineer in South Africa to develop and enhance APIs, support system modernisation, and ensure technical integrity of solutions. The ideal candidate has solid experience with C# and .NET Framework 4.8+, along with strong SQL Server skills. Benefits include flexible annual leave, health cash plans, and funding for training programs. This role offers a supportive environment with opportunities for professional development.

Benefits

25 days annual leave plus bank holidays

Health cash plan

Financial Wellbeing app

High street discounts

Employee Assistance Programme

Contributory Pension Scheme

Fully funded training programmes

Qualifications

• Solid experience as a Mid-level C# Engineer, with strong understanding of .NET Framework 4.8+.
• Experience with SQL Server (2019) and unit testing/TDD using NUnit.
• Strong communication skills with the ability to collaborate effectively across teams.

Responsibilities

• Develop, maintain, and enhance APIs and integration components using C#.
• Support system modernisation activities, including refactoring legacy components.
• Work collaboratively with the Senior C# Engineer to ensure scalability and stability.

Skills

C#

.NET Framework 4.8+

SQL Server (2019)

JSON

XML

XSD

XSLT

NUnit

IIS

Communication

Tools

.NET Core

Azure DevOps

AWS

Job description

Job Type: Permanent Job Sector: Unspecified Region: North West Location: Runcorn Salary Description: Competitive Posted: 03/02/2026 Recruiter: Phoenix Medical Supplies Job Ref: kal-PHOENIXMedicalSuppliesLimited-45919-64808-en

Key Responsibilities

• Develop, maintain, and enhance APIs and integration components using C# and related technologies.
• Support system modernisation activities, including refactoring legacy components for improved performance and maintainability.
• Translate project requirements into clear technical deliverables under the direction of the Team Lead.
• Work collaboratively with the Senior C# Engineer to ensure scalability, stability, and technical integrity of solutions.
• Troubleshoot and resolve API, application, and build issues, escalating complex matters when necessary.
• Write unit tests and contribute to automated testing initiatives using modern development practices.
• Participate in code reviews, applying best practices, design patterns, and SOLID principles.
• Partner with QA, DevOps, and platform teams to support deployment, monitoring, and CI/CD processes.
• Maintain accurate documentation for APIs and internal components.

What We’re Looking For

• Solid experience as a Mid-level C# Engineer, with strong understanding of .NET Framework 4.8+.
• Strong knowledge of JSON, XML, XSD, and XSLT.
• Experience with SQL Server (2019) and unit testing/TDD using NUnit.
• Ability to deploy applications to IIS and troubleshoot build or runtime issues.
• Strong communication skills with the ability to collaborate effectively across teams.
• Understanding of SOLID principles and the ability to apply them effectively.

Desirable

• Experience with .NET Core, WCF, ServiceStack, or Developer Express.
• Exposure to CI/CD pipelines, Azure DevOps, or Azure App Service.
• Knowledge of AWS or cloud migration initiatives.
• Experience working with legacy systems and supporting modernisation efforts.

What We Offer

• 25 days (pro rata) annual leave plus bank holidays, increasing with length of service
• Medicash – a health cash plan to support everyday healthcare costs (e.g. eyecare, prescriptions)
• iTrent Financial Wellbeing – an app to help manage and access your pay flexibly
• High street discounts and offers
• Employee Assistance Programme (EAP)
• Contributory Pension Scheme
• Fully funded accredited training programmes through the Apprenticeship Scheme
• INDPMS