Himalayas logo
EL

Full-Stack Developer (React + .NET)

EX Squared LATAM
Costa Rica only

Stay safe on Himalayas

Never send money to companies. Jobs on Himalayas will never require payment from applicants.

Become an EXpert as a Full-Stack Engineer (React + .NET)

At EX Squared LATAM, we partner with innovative companies to build high-impact digital products. We are currently looking for a Senior Full-Stack Engineer to join a U.S.-based client in the energy and grid services industry.

This role is ideal for a engineer who thrives in modernizing legacy systems, enhancing user experience, and contributing to scalable cloud-based solutions. You will play a key role in transforming an existing ASP.NET MVC application into a modern React-based experience while ensuring architectural integrity and performance.

What You’ll Do

  • Design, develop, and maintain frontend applications using React, Next.js, and TypeScript.

  • Develop and maintain backend services using C#, .NET Core, and ASP.NET MVC.

  • Contribute to the migration of a complex ASP.NET MVC application into a modern React-based user interface.

  • Analyze Figma designs and existing C# and Razor code to accurately map functionality.

  • Build and integrate RESTful APIs to enable scalable communication between systems.

  • Collaborate closely with technology leadership, DevOps, QA, and cross-functional teams.

  • Provide technical insights to QA engineers regarding system behaviors and edge cases.

  • Support cloud-based deployments in Azure environments.

  • Continuously improve development processes and engineering best practices.

What You’ll Bring

  • Strong experience building enterprise-level applications using React.

  • Solid experience with C#, .NET Core, ASP.NET MVC, and Razor views.

  • At least 4+ years of professional experience in software development.

  • Advanced English level: B2+/C1.

  • Proven experience working with SQL databases and ORM tools, preferably Entity Framework.

  • Experience working in Azure cloud environments.

  • Strong debugging and problem-solving skills.

  • Passion for user experience and improving usability in complex systems.

  • Ability to work independently with limited supervision.

  • Strong communication skills and ability to collaborate effectively across teams.

Why Join EX Squared?

At EX Squared LATAM, we believe in empowering talent across Latin America to build meaningful technology solutions for global clients. You’ll collaborate with experienced professionals, contribute to impactful digital transformations, and grow within a culture that values innovation, ownership, and continuous learning.

We focus on long-term partnerships, strong engineering culture, and delivering excellence in every project we take on.

What We Offer

  • Competitive compensation in USD.

  • Remote work model.

  • Access to continuous learning platforms and professional development programs.

  • Collaborative and multicultural work environment.

  • Opportunities to work on high-impact projects with U.S.-based clients.

If you are passionate about modernizing systems, building scalable full-stack applications, and elevating user experience in complex environments, we’d love to hear from you.

Apply now and become an EXpert.

About the job

Apply before

Posted on

Job type

Full Time

Experience level

Senior

Experience

4 years minimum

Location requirements

Hiring timezones

Costa Rica +/- 0 hours

About EX Squared LATAM

Learn more about EX Squared LATAM and their company culture.

View company profile
Claim this profileEL

EX Squared LATAM

View company profile

Similar remote jobs

Here are other jobs you might want to apply for.

View all remote jobs

Remote companies like EX Squared LATAM

Find your next opportunity by exploring profiles of companies that are similar to EX Squared LATAM. Compare culture, benefits, and job openings on Himalayas.

View all companies

Find your dream job

Sign up now and join over 100,000 remote workers who receive personalized job alerts, curated job matches, and more for free!

Sign up
Himalayas profile for an example user named Frankie Sullivan