WFH | Backend Developer - C# | .NET Core | Azure | REST APIs |

Cogenthub; United States; Remote; USD 90,000 - 130,000; Full time

Job summary

Cogenthub is seeking a Backend Systems Developer in the United States to design, implement, and maintain high-performance integration services and backend systems, with a focus on scalable serverless solutions in the Microsoft Azure ecosystem.

You will collaborate with developers and the lead on architectural decisions, code reviews, and modernization efforts, delivering data-driven applications and polished automation scripts in .NET and Azure.

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or a related field.
• Minimum of 4 years of professional backend development experience within the Microsoft stack.
• Demonstrated experience delivering production-grade APIs and cloud-hosted services.

Responsibilities

• Backend Development: Design and develop secure, scalable backend services using C# and .NET Core / .NET 6+.
• Serverless Architecture: Build event-driven applications and microservices using Azure Functions and cloud-native messaging patterns.
• API Engineering: Create and manage RESTful APIs for cross-platform data synchronization and automation.
• Database Design & Optimization: Architect efficient SQL schemas and write high-performance T-SQL.
• System Modernization: Read, debug, and maintain existing .NET codebases and modernize automation scripts.
• Team Collaboration: Work with development lead on architectural decisions, code reviews, and roadmaps.

Skills

Core Development

Azure Expertise

Data Persistence

Integration Patterns

DevOps Lifecycle

Python Scripting

Education

Bachelor's degree

Tools

Git

Azure DevOps (ADO)

Azure Functions

Job description

Job Description:

We are seeking a highly motivated Backend Systems Developer to join our engineering team. You will work with other developers to design, implement, and maintain high-performance integration services, internal APIs, backend systems, and support existing internal systems and applications. This role is ideal for a developer who excels at building scalable serverless solutions and robust data-driven applications within the Microsoft Azure ecosystem.

Key Responsibilities:

• Backend Development: Design and develop secure, scalable, and maintainable backend services using C# and .NET Core / .NET 6+.
• Serverless Architecture: Build and optimize event-driven applications and microservices using Azure Functions and cloud-native messaging patterns.
• API Engineering: Create and manage RESTful APIs that serve as the backbone for cross-platform data synchronization and business logic automation.
• Database Design & Optimization: Architect efficient SQL schemas and write high-performance T-SQL to manage complex data movements and transformations.
• System Modernization: Read, debug, and maintain existing .NET codebases including legacy applications and contribute to refactoring efforts that modernize automation scripts into compiled, unit-tested .NET services.
• Team Collaboration: Work closely with the development lead on architectural decisions, peer code reviews, and shared technical roadmaps.

Skills Required:

• Core Development: Expert-level knowledge of C# and the .NET framework (Standard, Core, and 6+).
• Azure Expertise: Proven experience with Azure Functions (C# and Python), Azure Storage, and the broader Azure App Service environment.
• Data Persistence: Advanced SQL Server skills, including performance tuning, stored procedures, complex relational modeling, and SQL Server Agent job configuration and maintenance.
• Integration Patterns: Strong understanding of asynchronous programming, dependency injection, and middleware patterns.
• DevOps Lifecycle: Proficiency with Git and Azure DevOps (ADO) for version control and CI/CD pipelines.
• Python Scripting: Working knowledge of Python, specifically for building and maintaining Azure Functions.

Soft Skills:

• Collaborative Mindset: A strong desire to work as part of a small, agile team, contributing to a shared codebase and technical vision.
• Analytical Thinking: The ability to deconstruct complex business requirements into clean, modular technical solutions.
• Effective Communication: Ability to articulate technical concepts and participate in collaborative problem-solving sessions.

Qualifications:

• Bachelor’s degree in Computer Science, Software Engineering, or a related field.
• Minimum of 4 years of professional backend development experience within the Microsoft stack.
• Demonstrated experience delivering production-grade APIs and cloud-hosted services.