Senior .NET Integration Engineer - API & Azure Functions

J4RVIS; Manila; On-site; PHP 1,000,000 - 1,600,000; Full time

Job summary

J4RVIS is seeking an experienced Integration Developer to own backend data movement between systems using .NET Web APIs, Azure Functions, and event-driven services. You’ll collaborate with clients, architects, and engineers across Australia and the Philippines to deliver scalable, reliable integrations.

You’ll design interfaces, implement robust error handling, and ensure security with modern standards while contributing to deployment pipelines and technical docs.

Qualifications

• 4–5+ years building production software in C# and .NET.
• Experience delivering system-to-system integrations.
• Strong communication and collaboration with clients, architects and engineers.

Responsibilities

• Build and maintain .NET Web APIs that integrate enterprise systems with versioning and error handling.
• Design and implement event-driven services on Azure Service Bus or similar broker.
• Develop, deploy, and tune Azure Functions for event-triggered processing.
• Translate integration requirements into interface contracts and non-functional specs.
• Create unit tests with xUnit to desired coverage; perform integration tests where needed.
• Build and maintain Azure DevOps pipelines across environments.
• Support testing, deployment, and hypercare after go-live.
• Contribute to estimates, SOWs, and technical documentation.
• Review teammates' code and uphold project standards.

Skills

C#

.NET

API design

REST

JSON

Async programming

Versioning

OAuth 2.0

JWT

TLS

Tools

Azure Functions

Azure Service Bus

Azure DevOps

xUnit

Production hosting

Job description

J4RVIS is seeking an experienced Integration Developer to own backend data movement between systems using .NET Web APIs, Azure Functions, and event-driven services. You’ll collaborate with clients, architects, and engineers across Australia and the Philippines to deliver scalable, reliable integrations.

You’ll design interfaces, implement robust error handling, and ensure security with modern standards while contributing to deployment pipelines and technical docs.