Sr. Software Engineer C# - Azure Specialist

McDonald's; Ciudad de México; On-site; MXN 1,200,000 - 1,900,000; Full time

Job summary

McDonalds Global Technology in Mexico City is seeking a senior Software Development Engineer III (Azure Specialist) to join our engineering team. You will design and implement scalable applications on Azure, focusing on architecture, reliability, and performance while actively coding.

The ideal candidate has deep C#/.NET experience, strong Azure service knowledge, and hands-on practice with distributed systems, security, observability, and DevOps collaboration.

Qualifications

• Strong professional experience developing production applications using C# and .NET.
• Advanced understanding of object-oriented programming and modern software engineering principles.
• Strong experience developing REST APIs and backend services.
• Strong experience with asynchronous programming and distributed applications.
• Hands-on development experience with Microsoft Azure.
• Strong knowledge of several Azure application services, particularly: Azure Functions, Service Bus, App Service, Cosmos DB/SQL, Storage, Key Vault, Application Insights.
• Strong understanding of event-driven architecture and messaging patterns.
• Experience implementing reliable message processing, including retries, dead-letter handling, idempotency, and failure recovery.
• Experience designing applications for scalability, resiliency, and availability.
• Experience with Git-based development workflows.

Responsibilities

• Design, develop, test, and maintain scalable applications and services using C# and .NET.
• Build REST APIs, background services, and distributed systems.
• Write maintainable, testable, production-ready code with SOLID principles.
• Apply DI, design patterns, and architectural patterns.
• Collaborate in code reviews and technical design discussions.
• Mentor teammates and contribute to delivery timelines.

Skills

C#/.NET

Object-oriented programming

REST APIs

Asynchronous programming

Azure cloud computing

System design

Code reviews

Tools

Azure Functions

Azure Service Bus

Azure Event Grid

Azure App Service

Azure Cosmos DB

Azure SQL

Azure Storage

Azure Key Vault

Application Insights

Job description

Job Description:

Company Description

McDonalds growth strategy, Accelerating the Arches, encompasses all aspects of our business as the leading global omni-channel restaurant brand. As the consumer landscape shifts we are using our competitive advantages to further strengthen our brand. One of our core growth strategies is to Double Down on the 3Ds (Delivery, Digital and Drive Thru). McDonalds will accelerate technology innovation so 65M+ customers a day will experience a fast, easy experience, whether at one of our 25,000 and growing Drive Thrus, through McDelivery, dine-in or takeaway.

McDonalds Global Technology is here to power tomorrow's feel-good moments.

That's why you'll find us at the forefront of transformative technology, exploring new and innovative ways to serve our millions of customers and spread happiness one delicious Hot Fudge Sundae-dipped fry at a time.Using AI, robotics and emerging tech, we're digitizing the Golden Arches. Combine that with our unparalleled global scale, and we're reshaping all areas of the business, industry and every community that is home to a McDonalds restaurant.We face complex tech challenges every day. But that's where our diverse and talented teams come in. They're made up of the best and brightest from all over the globe, and they thrive in the space where feel-good meets fast-paced.

Our Global Mexico City Office will be a hub for technology innovation and operational support to help us build the solutions that will improve our customer, crew and employee experience each and every day.

Department Overview

We are looking for an experienced Software Development Engineer III (SDE III) - Azure Specialist to join our engineering organization.

This is a hands-on software engineering role for a senior developer with deep expertise in building applications and distributed systems using Microsoft Azure.

The ideal candidate combines strong C#/.NET engineering skills with a deep understanding of Azure application services, cloud-native development patterns, asynchronous processing, security, resiliency, observability, and performance.

This role will serve as a technical reference for Azure application development, helping engineering teams design and implement reliable solutions while remaining actively involved in coding and delivery.

The Azure Specialist will work closely with our DevOps team but will primarily focus on application architecture and software development rather than cloud infrastructure administration.

Duties

• Software Engineering
  • Design, develop, test, and maintain scalable applications and services using C# and .NET.
  • Build high-quality REST APIs, background services, event-driven applications, and distributed systems.
  • Write maintainable, testable, and production-ready code following modern software engineering practices.
  • Apply SOLID principles, dependency injection, design patterns, and appropriate architectural patterns.
  • Participate actively in code reviews, technical design discussions, troubleshooting, and implementation.
• Azure Application Development
  • Design and implement applications using Azure services such as:
  • Azure Functions
  • Azure Service Bus
  • Azure Event Grid
  • Azure App Service
  • Azure Cosmos DB
  • Azure SQL
  • Azure Storage
  • Azure Key Vault
  • Azure App Configuration
  • Microsoft Entra ID
  • Application Insights

Qualifications

• Strong professional experience developing production applications using C# and .NET.
• Advanced understanding of object-oriented programming and modern software engineering principles.
• Strong experience developing REST APIs and backend services.
• Strong experience with asynchronous programming and distributed applications.
• Hands-on development experience with Microsoft Azure.
• Strong knowledge of several Azure application services, particularly:
  • Azure Functions
  • Azure Service Bus
  • Azure App Service
  • Azure Cosmos DB and/or Azure SQL
  • Azure Storage
  • Azure Key Vault
  • Application Insights
• Strong understanding of event-driven architecture and messaging patterns.
• Experience implementing reliable message processing, including retries, dead-letter handling, idempotency, and failure recovery.
• Experience designing applications for scalability, resiliency, and availability.
• Experience with Git-based development workflows.

Additional information

At McDonalds we are People from all Walks of Life...

People are at the heart of everything we do, and they make the McDonalds experience. We embrace diversity and are committed to creating an inclusive culture that means people can be their best authentic self in our restaurants and offices, which helps us to better serve our customers. We have a strong heritage of diversity and representation within our communities, which we are proud of. The diversity of our people, customers, Franchisees, and suppliers gives us strength.

We do not tolerate inequality, injustice, or discrimination of any kind. These are hugely important issues and a brand with our reach and relevance means we have a very meaningful role to play.

We also recognise our responsibility as a large employer to continue being active in our communities, helping to develop skills and drive aspirations that will help people to be more aware of the world of work and more successful within it, whether with McDonalds or elsewhere.