Mid Full Stack Developer (.NET + React)

About the role

EX Squared LATAM is seeking a Mid‑level Full Stack Developer to join a hybrid team building high‑impact enterprise applications. You will work on both backend and frontend components, delivering scalable, maintainable solutions for global clients.

Key responsibilities

• Design, develop, and maintain web applications using C#.NET Core, React and Angular.
• Build responsive user interfaces with HTML, CSS and JavaScript.
• Create and consume RESTful APIs to integrate services.
• Write and optimise SQL queries for SQL Server and PostgreSQL databases.
• Participate in the full software lifecycle: analysis, development, testing, deployment and maintenance.
• Collaborate with QA, product owners and technical leaders in an Agile environment.
• Conduct code reviews, apply SOLID principles and best‑practice coding standards.
• Support CI/CD pipelines and automated deployments.

Required profile

• University degree in Computer Science, Software Engineering or a related field.
• At least three years of professional experience as a Full Stack Developer.
• Advanced English proficiency (B2+/C1).
• Strong problem‑solving skills and ability to work in a collaborative, hybrid setting.

Required skills

• C# and .NET Core/.NET
• React and Angular
• HTML, CSS, JavaScript
• REST API development and consumption
• SQL Server and PostgreSQL
• Git version control
• Agile development methodologies
• SOLID design principles
• Unit testing (plus)
• Azure, AWS or Google Cloud (nice‑to‑have)
• Docker, Kubernetes (nice‑to‑have)
• Microservices architecture (nice‑to‑have)
• Power BI or SSIS (nice‑to‑have)
• Azure DevOps, GitHub or GitLab (nice‑to‑have)

What we offer

• A collaborative, inclusive culture that values curiosity and ownership.
• Opportunities to work on innovative projects for leading regional and global clients.
• Hybrid work model with two onsite days per month in Escazú.
• Long‑term contract with professional growth and continuous learning support.