McDonald’s 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). McDonald’s 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.
McDonald’s 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 McDonald’s 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
As a Software Development Engineer III (SDE III), you will serve as a senior individual contributor responsible for designing, developing, modernizing, and supporting enterprise applications that power McDonald's Global Access Management (GAM) platform.
This role requires deep technical expertise across modern and legacy technologies, with the ability to design scalable solutions, solve complex engineering problems, and provide technical leadership through mentorship and architectural guidance. You will collaborate with cross-functional teams to deliver secure, reliable, and maintainable software supporting millions of users worldwide.
Successful candidates are expected to own large technical initiatives, influence engineering decisions, and drive continuous improvements across the platform while balancing modernization efforts with operational stability.
Duties
- Design, develop, and maintain enterprise applications using C# and the .NET ecosystem.
- Lead the technical implementation of medium-to-large engineering initiatives.
- Design scalable, maintainable, and secure software solutions.
- Build and maintain RESTful APIs and distributed backend services.
- Modernize enterprise applications from .NET Framework 4.8 to modern .NET (.NET 8/10).
- Develop user interfaces using Razor Pages, JavaScript, jQuery, HTML, and CSS.
- Troubleshoot complex production issues and lead root cause analysis efforts.
- Review architecture and code to ensure engineering quality and consistency.
- Mentor junior engineers through technical guidance and code reviews.
- Participate in technical design discussions and architectural decisions.
- Collaborate with Architects, Product Owners, QA Engineers, Security teams, and global engineering organizations.
- Support production systems, including participation in L4 support and critical incident response.
- Identify technical debt and propose modernization strategies.
- Participate actively in Scrum ceremonies and engineering planning activities.
Qualifications
- Bachelor's degree in Computer Science, Software Engineering, or related field (or equivalent experience).
- 5+ years of professional software development experience building enterprise applications using C# and .NET.
- Extensive experience developing enterprise applications using C# and .NET.
- Strong experience with .NET Framework 4.8 and ASP.NET MVC.
- Strong experience building applications using modern .NET (.NET 8 or newer).
- Strong experience designing and consuming REST APIs.
- Advanced Microsoft SQL Server experience.
- Experience designing scalable enterprise software.
- Strong understanding of Object-Oriented Design and SOLID principles.
- Hands-on experience with Dependency Injection.
- Strong understanding of CQRS and Event-Driven Architecture.
- Strong debugging, troubleshooting, and root cause analysis skills.
- Experience working with Git-based version control.
- Ability to independently own complex technical initiatives.
- Excellent communication and collaboration skills.
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.
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