Senior React/Typescript Fullstack Engineer - Ai-Driven Fintech

Taynes Consultores; Ciudad de Mendoza; Presencial; ARS 92.724.000 - 139.086.000; Tempo integral

Resumo da vaga

Taynes Consultores is seeking a Full Stack Engineer to join its Cloud Platform Engineering Team. You will build and scale end-to-end web applications, connecting modern user interfaces with backend services, databases, and secure authentication workflows.

You will design PostgreSQL schemas for performance and scalability, build RESTful APIs, and package logic as OCI container images. The role requires hands-on expertise in React, PostgreSQL, Keycloak, and modern web authentication, with CI/CD

Qualificações

• 3+ years of professional software development experience.
• Proficiency in React and modern frontend architectures.
• Experience with PostgreSQL relational databases.
• Experience designing and consuming REST APIs.
• Direct experience with Keycloak and modern web authentication (OIDC, OAuth 2.0, JWT).
• Understanding of token storage, CORS, and stateless sessions.
• Experience with containerized applications and CI/CD workflows.
• Strong software engineering practices and focus on secure, scalable apps.

Responsabilidades

• Build and scale end-to-end web applications on a cloud platform.
• Connect React frontends with robust backend services and DB architectures.
• Implement secure authentication workflows with OIDC/OAuth 2.0 and Keycloak.
• Develop and test REST APIs and containerized deployments using GitHub Actions.

Conhecimentos

React

PostgreSQL

REST APIs

Keycloak

OIDC

OAuth 2.0

JWT

Containerization

GitHub Actions

CI/CD

Ferramentas

keycloak-js

GitHub Actions

Descrição da vaga

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