Senior Full Stack Software Engineer (React.js + .NET)

EX Squared LATAM; Ciudad de México; Híbrido; MXN 400,000 - 600,000; Jornada completa

Descripción de la vacante

A leading technology organization is seeking a Senior Full Stack Software Engineer with expertise in React.js and .NET Core. The role involves designing and maintaining full-stack solutions, building RESTful APIs, and collaborating with diverse teams in a 100% remote environment. The ideal candidate has over 5 years of experience in software development, delivering end-to-end solutions. The position offers competitive compensation and participation in complex platform evolution initiatives.

Servicios

Competitive compensation in USD

100% remote work

Collaborative environment

Formación

• 5+ years of professional experience in software development.
• Proven experience as a Full Stack Engineer on production systems.
• Strong hands-on experience with React.js, Next.js, TypeScript, C#, .NET Core.

Responsabilidades

• Design and maintain full-stack solutions using React.js, .NET Core.
• Build and consume RESTful APIs ensuring performance and maintainability.
• Collaborate with Product Managers, UX/UI designers, and QA engineers.

Conocimientos

React.js

C#

TypeScript

RESTful APIs

ASP.NET MVC

Next.js

Herramientas

Optimizely

AWS

Azure

Descripción del empleo

Senior Full Stack Software Engineer (React.js + .NET Core)

At EX Squared LATAM, we partner with engineering-driven organizations to design, build, and evolve business-critical digital platforms. We are looking for a Senior Full Stack Software Engineer with a strong backend foundation in C# / .NET Core and solid frontend expertise in React.js, capable of owning end-to-end solutions and contributing to the long-term evolution of the platform.

This role is designed for a senior, hands-on engineer with strong technical judgment, autonomy, and accountability, comfortable operating across the full application lifecycle—from user-facing experiences to backend services and integrations.

What You’ll Do

• Design, develop, and maintain full-stack solutions using React.js, Next.js, TypeScript, C#, .NET Core, and ASP.NET MVC.

• Build and consume RESTful APIs, ensuring scalability, performance, and maintainability.

• Contribute to the design and evolution of full-stack application architecture.

• Apply clean code principles, modular design, and separation of concerns across frontend and backend layers.

• Develop and customize solutions using Optimizely, supporting CMS, personalization, and digital experience requirements.

• Translate product, content, and UX requirements into robust technical implementations.

• Collaborate closely with Product Managers, UX/UI designers, QA engineers, and other developers.

• Participate in code reviews, ensuring quality, consistency, security, and long-term maintainability.

• Identify and resolve performance bottlenecks across frontend and backend components.

• Apply secure coding practices and ensure reliable handling of data and integrations.

• Take ownership of assigned features and components across the full stack.

• Proactively contribute to technical improvements, standards, and engineering practices.

What You Need to Succeed

• 5+ years of professional experience in software development.

• Proven experience as a Full Stack Engineer working on production systems with medium to high complexity.

• Strong hands-on experience with:

  • React.js, Next.js, and TypeScript

  • C#, .NET Core, and ASP.NET MVC

• Experience delivering end-to-end solutions, from frontend UI to backend services and integrations.

• Solid understanding of RESTful APIs, relational databases, and data modeling principles.

Nice to Have:

• Hands-on experience with Optimizely (CMS or Digital Experience Platform).

• Experience with cloud platforms such as AWS or Azure.

What We Offer

• Competitive compensation in USD, aligned with seniority.

• 100% remote work from anywhere in Latin America.

• Participation in complex architectures and platform evolution initiatives.

• Collaborative, inclusive environment where technical impact matters.