Senior Full-Stack Engineer (Go & React) - Cloud & Security

Unavailable; Ciudad de Mendoza; On-site; ARS 1,200,000 - 2,400,000; Full time

Job summary

Unknown is seeking a Full Stack Engineer to join our Cloud Platform Engineering Team. You will build and scale end-to-end web applications, linking responsive UIs with robust backend services and secure authentication workflows.

You will design PostgreSQL schemas, build and consume REST APIs, and package logic as OCI containers. You will integrate Keycloak for OIDC/OAuth 2.0 flows, secure endpoints with JWT, and implement modern security practices.

Qualifications

• 3+ years of professional software development experience with hands-on work in React and backend services.
• Experience designing and querying PostgreSQL databases for performance and scalability.
• Experience designing and consuming REST APIs.

Responsibilities

• Build and scale end-to-end web applications connecting modern UIs with robust backend services, databases, and secure authentication workflows.
• Design, optimize, and query PostgreSQL database schemas for performance and scalability.
• Build and consume RESTful APIs and package application logic as stateless OCI container images.
• Integrate OIDC/OAuth 2.0 authorization flows into React frontends and backend services using Keycloak.
• Secure API endpoints through JWT verification, token exchange policies, and scope validation.
• Implement modern web security practices including token storage, CORS, and stateless session management.
• Write and maintain unit, integration, and contract tests.
• Integrate automated testing into GitHub Actions, ensuring tests run on every PR.
• Collaborate with the engineering team to build reliable, maintainable, and scalable cloud-based applications.

Skills

React

PostgreSQL

REST APIs

OIDC/OAuth 2.0/JWT

Token storage

CORS

Containerized apps

CI/CD (GitHub Actions)

Testing (unit/integration/contract)

Tools

Keycloak

Job description

Unknown is seeking a Full Stack Engineer to join our Cloud Platform Engineering Team. You will build and scale end-to-end web applications, linking responsive UIs with robust backend services and secure authentication workflows.

You will design PostgreSQL schemas, build and consume REST APIs, and package logic as OCI containers. You will integrate Keycloak for OIDC/OAuth 2.0 flows, secure endpoints with JWT, and implement modern security practices.