Senior Go/React Fullstack Engineer

Kake; Ciudad de Mendoza; On-site; ARS 1,000,000 - 1,300,000; Full time

Job summary

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

You will design PostgreSQL schemas for performance and scalability, build RESTful APIs, and package logic as OCI container images. You will integrate OIDC/OAuth 2.0 with Keycloak into React frontends and services, ensuring secure API endpoints and

Qualifications

• 3+ years of professional software development experience.
• Experience designing and consuming REST APIs.
• Direct experience with Keycloak or similar identity providers.
• Solid understanding of OIDC, OAuth 2.0, JWT, and modern web authentication/authorization.
• Knowledge of token storage best practices, CORS, and stateless session management.
• Experience with containerized applications and CI/CD environments (GitHub Actions).
• Ability to write unit, integration, and contract tests.

Responsibilities

• Build and scale end-to-end web applications with React frontend and backend services.
• Design, optimize, and query PostgreSQL databases for performance and scalability.
• Build and consume REST APIs and package logic using OCI container images.
• Integrate OIDC/OAuth flows with Keycloak across frontend and backend services.
• Secure API endpoints with JWT verification and token policies.
• Write and maintain tests and integrate them into GitHub Actions workflows.
• Collaborate with the engineering team to deliver reliable, scalable cloud-based applications.

Skills

React

PostgreSQL

REST APIs

Keycloak

OIDC / OAuth 2.0

JWT

CORS

CI/CD

GitHub Actions

Unit testing

Tools

Docker / OCI containers

Job description

The Role: We are looking for a Full Stack Engineer to join our Cloud Platform Engineering Team.

In this role, you will be responsible for building and scaling end-to-end web applications, connecting modern and responsive user interfaces with robust backend services, database architecture, and secure authentication workflows.

Design, optimize, and query PostgreSQL database schemas with a strong focus on performance and scalability.

Build and consume RESTful APIs , packaging application logic as stateless OCI container images .

Integrate OIDC/OAuth 2.0 authorization code 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 appropriate token storage, CORS , and stateless session management.

Write and maintain unit, integration, and contract tests .

Integrate automated testing into GitHub Actions , ensuring tests are executed on every pull request.

Collaborate with the engineering team to build reliable, maintainable, and scalable cloud-based applications.

Requirements

3+ years of professional software development experience , with strong hands‑on experience in:

• React
• Relational databases, particularly PostgreSQL
• Experience designing and consuming REST APIs .
• Direct experience with Keycloak , including client libraries such as keycloak-js.
• Solid understanding of OIDC, OAuth 2.0, JWT, and modern web authentication and authorization practices .
• Understanding of token storage best practices, CORS , and stateless session management.
• Experience working with containerized applications and workflows .
• Experience with automated CI/CD environments , preferably GitHub Actions .
• Strong understanding of software engineering best practices and the ability to build secure, scalable, and maintainable applications.

Core Tech Stack