Career Opportunities with MAS Global Consulting

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Senior Fullstack Developer | .NET

Department: Software Development Services
Location: Medellín, Antioquia

Who We Are

At MAS Global Consulting, we are a premium digital engineering partner trusted by innovative startups and Fortune 100 companies, delivering high-impact solutions through agile delivery, deep technical expertise, and a strong people-first culture across the Americas.

We build long-term partnerships, not just software. MAS means “more” in Spanish, and that mindset drives our commitment to greater opportunity, inclusion, and impact.

Founded by a Latina engineer from Medellín and headquartered in Tampa, Florida, MAS Global Consulting is a 100% Hispanic and woman-owned company, recognized as a Great Place to Work and one of the Fastest-Growing Companies in the US.

Who You Are

You’re a Senior Fullstack Developer with strong experience building scalable, high-quality applications using .NET and C# across backend and frontend layers. You have hands-on expertise developing modern cross-platform applications with .NET MAUI, and you’re comfortable designing APIs, implementing business logic, and delivering intuitive user experiences.

You take ownership of features end-to-end — from architecture and development to testing and deployment — while collaborating closely with Product, Design, QA, and other engineering teams. You bring a strong engineering mindset, high standards for code quality, and a passion for building maintainable, scalable solutions.

This is a hands-on senior role focused on technical execution, solution design, and cross-functional collaboration.


What You’ll Do

  • Design, develop, and maintain fullstack applications using .NET and C#.

  • Build and enhance cross-platform applications using .NET MAUI (mobile and/or desktop).

  • Develop and maintain RESTful APIs and backend services following clean architecture principles.

  • Translate business and product requirements into scalable technical solutions.

  • Implement secure, high-performance integrations with databases and third-party services.

  • Collaborate with UX/UI designers to deliver responsive, user-friendly interfaces.

  • Ensure high standards of code quality through code reviews, unit testing, and best practices.

  • Participate in architectural discussions and contribute to technical decision-making.

  • Optimize applications for performance, scalability, and reliability.

What You Bring

  • 5+ years of experience as a Fullstack Developer working with .NET / C#.

  • Strong hands-on experience with .NET MAUI for cross-platform application development.

  • Solid experience building RESTful APIs and backend services using ASP.NET Core.

  • Strong understanding of software architecture patterns (Clean Architecture, SOLID principles, etc.).

  • Experience working with relational databases (SQL Server or similar).

  • Experience with version control systems (Git) and modern development workflows.

  • Familiarity with cloud environments (Azure preferred).

  • Strong problem-solving skills and the ability to work independently in a fast-paced environment.

  • Excellent communication skills and ability to collaborate across teams.


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