Senior Full-Stack Engineer (React/Node/C#) — Remote LATAM

MAS Global Consulting; Argentina; Presencial; Jornada completa

Descripción del empleo

Location: Argentina or Colombia (candidates must reside in one of these two countries; the role is fully remote)

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 are an experienced Senior Full Stack Engineer, comfortable working across the front end, backend, and cloud infrastructure. You have solid hands-on experience with React, Node.js, and C#, and you\'re used to owning features end to end in agile, collaborative environments.

6 Senior Full Stack Developer positions (contractors)

Duration: 6 months

Location requirement: Colombia or Argentina

What You\'ll Do

Build and maintain features across the full stack — from React front-end screens to Node.js and C# backend services.

Design and implement data solutions using Postgres, AWS DynamoDB, and SQL.

Develop and deploy infrastructure on AWS, including SQS, Lambda, ECS, CloudFront, ALB, and EventBridge.

Manage infrastructure as code with Terraform, version-controlled through GitLab.

Write and maintain automated tests using Jest and Playwright.

What You Bring

Solid experience as a Senior Full Stack Developer.

Strong hands-on experience with React and Node.js.

Experience with C#.

Experience with Postgres, AWS DynamoDB, and SQL.

Hands-on experience with AWS services: SQS, Lambda, ECS, CloudFront, ALB, EventBridge.

Experience with Terraform and GitLab.

Experience testing with Jest and Playwright.

English proficiency and strong communication skills.