Senior .NET Full-Stack Engineer (Azure, React)

Toolagen Limited; United States; Remote; USD 120,000 - 170,000; Full time

Job summary

Toolagen Limited is seeking a Senior Backend / Full-stack Engineer to join a global distributed team. You will design and implement secure, scalable backend services with .NET 8+ and REST, while contributing to frontend work using React, TypeScript, and SPFx for SharePoint Online and Teams.

You will leverage Azure Cloud services, Cosmos DB, and Microsoft Fabric, integrate APIs, and maintain automated tests to ensure high-quality software.

Qualifications

• 8+ years of hands-on software development experience.
• Strong English speaking and writing skills.
• Experience in designing distributed systems and end-to-end software lifecycle.
• Backend development with .NET 8+.
• Proven experience with Azure Cloud services (App Service, Functions, Monitor, Entra ID, Key Vault).
• Hands-on experience with cloud databases (Azure Cosmos DB, Azure SQL, PostgreSQL, Microsoft Fabric).
• Recent experience with React, TypeScript, and modern frontend practices.
• Solid understanding of automated testing.
• Experience with Git, Azure DevOps, and DevOps practices.
• Excellent communication and problem-solving skills; ability to guide technical decisions.
• Experience using AI coding assistant tools (GitHub Copilot, Cursor, Claude Code).

Responsibilities

• Work in a global distributed team to deliver engineering tasks.
• Participate in sprints and deliver backend/frontend features.
• Utilise Azure DevOps for backlog management, tasks, and deployment automation.
• Design, develop, and maintain secure, scalable backend services using .NET 8+ and REST.
• Leverage Azure Cosmos DB, Azure Blob Storage, and Microsoft Fabric for data solutions.
• Integrate SDKs/APIs including Microsoft Graph, Teams, and Cognitive Services.
• Develop cloud-native solutions with Azure App Service, Functions, Entra ID, Key Vault, Monitor.
• Contribute to frontend work with React, TypeScript, Fluent UI v9, SPFx for SharePoint Online and Teams.
• Write and maintain automated tests (unit/integration/system).
• Collaborate with Technical Architect and cross-functional teams to deliver high-quality solutions.
• Participate in release and support activities; ensure coding standards and product quality.

Skills

Backend development

Distributed systems

C# .NET

Azure cloud

React

TypeScript

Azure DevOps

Git

Automated testing

AI coding tools

Tools

Azure DevOps

Git

SPFx

React

TypeScript

Fluent UI v9

Microsoft Graph

Cognitive Services

Azure Cosmos DB

Job description

Toolagen Limited is seeking a Senior Backend / Full-stack Engineer to join a global distributed team. You will design and implement secure, scalable backend services with .NET 8+ and REST, while contributing to frontend work using React, TypeScript, and SPFx for SharePoint Online and Teams.

You will leverage Azure Cloud services, Cosmos DB, and Microsoft Fabric, integrate APIs, and maintain automated tests to ensure high-quality software.