C# Developer (.Net Core)

Psybergate (Pty) Ltd; Knysna; On-site; ZAR 550 000 - 750 000; Full time

Job summary

An IT solutions provider is seeking a C# Developer (.NET Core) for a 12-month contract to join a financial services client in Johannesburg. The role includes designing and developing scalable backend services, building APIs, and implementing data solutions with Cosmos DB. Ideal candidates should have a BSc/IT degree and 3-5 years of C# development experience.

Qualifications

• 3 - 5 years' experience as a C# Developer.
• Strong proficiency in C# and .NET Core.
• Experience with ASP.NET Core for API development.
• Knowledge of Cosmos DB SDK and data modelling best practices.
• Proficiency in unit and integration testing with .NET frameworks.

Responsibilities

• Design, develop, and maintain scalable backend services using C# .NET Core.
• Develop APIs with ASP.NET Core following best practices.
• Implement and optimize Cosmos DB data models using the SDK.
• Invest in frontend testing with Jest, Enzyme, or React Testing Library.
• Follow Agile methodologies in day-to-day development.

Skills

C#

.NET Core

ASP.NET

Cosmos DB

React 16+

JavaScript (ES6+)

TypeScript

Node.js

Azure DevOps

Education

Completed BSc / IT degree or other related fields

Job description

Overview

Psybergate is an IT company that builds bespoke software solutions and provides highly skilled resources to its clients.

We are looking for a C# Developer (.NET Core) to join our financial services client based in Johannesburg on a 12-month contract.

Responsibilities

• Design, develop, and maintain scalable and secure backend services using C# .NET Core. Build APIs, implement data solutions with Cosmos DB, integrate with cloud services, optimize application performance, and ensure best practices in testing, security, and software design.
• Develop APIs with ASP.NET Core following best practices.
• Implement and optimize Cosmos DB data models using the SDK.
• Conduct unit and integration testing in .NET to ensure code quality.
• Design and maintain user interfaces with React 16+ (hooks, lifecycle methods).
• Utilize Material-UI and styled-components for UI development.
• Manage state effectively with Redux.
• Write clean, scalable JavaScript (ES6+) and TypeScript code.
• Optimize React applications for performance.
• Implement frontend testing with Jest, Enzyme, or React Testing Library.
• Build backend services using Node.js and asynchronous programming and event-driven principles.
• Integrate with NoSQL databases (MongoDB, Cosmos DB).
• Develop and consume RESTful APIs.
• Work with Azure DevOps and CI/CD pipelines for code management.
• Implement Azure Functions and cloud-based best practices.
• Ensure proper logging, monitoring, and security compliance.
• Follow Agile methodologies (Scrum/Kanban) in day-to-day development.
• Apply SOLID principles and design patterns in software development.
• Collaborate using Git and version control workflows.

Qualifications

• Completed BSc / IT degree or other related fields
• 3 - 5 years' experience as a C# Developer
• Strong proficiency in C# and .NET Core.
• Experience with ASP.NET Core for API development.
• Knowledge of Cosmos DB SDK and data modelling best practices.
• Proficiency in unit and integration testing with .NET frameworks.
• Strong understanding of React 16+ (hooks, lifecycle methods, class components).
• Experience with Material-UI, styled-components, and Redux.
• Proficiency in JavaScript (ES6+) and TypeScript.
• Familiarity with React performance optimization.
• Knowledge of testing tools (Jest, Enzyme, React Testing Library).
• Experience with Node.js and asynchronous programming.
• Familiarity with MongoDB or other NoSQL databases.
• Experience with RESTful API development.
• Exposure to Azure DevOps, CI/CD pipelines, and Azure Functions.
• Understanding of logging, monitoring, and security best practices.
• Strong problem-solving and debugging skills.
• Knowledge of design patterns, SOLID principles, and Agile methodologies.
• Proficiency with Git and version control workflows.

Desirable Skills

• C#
• .Net
• .Net Core
• ASP.Net
• Cosmos DB
• React 16+

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Engineering and Information Technology

Industries

• IT Services and IT Consulting