Senior Full-Stack Engineer: Node.js/Next.js & AI CMS

Agileengine, Llc.; Buenos Aires; Hybrid; ARS 92,241,000 - 184,482,000; Full time

Benefits offered by this job

Professional growth

USD-based pay with benefits

Exciting projects

Flextime: remote and office options

Job summary

AgileEngine in Buenos Aires is seeking a Senior Full Stack Engineer to build backend services and content experiences within a Unified CMS platform, using Node.js, React, and Next.js.

You will implement REST and GraphQL integrations, manage content models in Contentstack-like CMS, develop reusable UI blocks with SSR/SSG, and support personalization and A/B testing alongside AI-assisted development.

Qualifications

• 4+ years of software engineering experience.
• Strong Node.js and backend development.
• Experience with Next.js or similar SSR framework.
• Backend services and REST APIs.
• GraphQL or gRPC.
• Headless CMS experience: Contentstack, Contentful, Strapi, or similar.
• Reusable UI components and dynamic forms.
• Unit, integration, and E2E testing.
• Experience with Jest or Playwright or React Testing Library.
• Familiarity with Git and CI/CD.
• Experience with code quality tools such as ESLint and Prettier.
• AI-assisted development only - not AI engineering/LLM expertise required.
• Personalization and A/B testing experience.

Responsibilities

• Build and maintain backend services and API integrations.
• Develop and maintain Node.js services, REST APIs, and GraphQL/gRPC integrations.
• Build and maintain React components and content blocks powering Unified CMS and marketing experiences.
• Develop and optimize SSR and SSG workflows using Next.js or similar frameworks.
• Implement content models and manage schema changes within Contentstack.
• Build reusable UI components using XDS and Emotion.
• Integrate third-party APIs and services and troubleshoot end-to-end data flows.
• Support personalization and A/B testing across Unified CMS experiences.
• Develop and maintain automated unit, integration, and E2E tests.
• Apply AI-assisted development practices to improve productivity, implementation, testing, and troubleshooting.
• Contribute to platform performance, scalability, reliability, and stability.
• Participate in Git-based development workflows and CI/CD processes.

Skills

4+ years exp

Node.js

Next.js

REST APIs

GraphQL

gRPC

Headless CMS

UI components

Testing

Jest

Playwright

Git

CI/CD

Code linting

AI-assisted dev

Personalization

Tools

Contentstack

Contentful

Strapi

Job description

AgileEngine in Buenos Aires is seeking a Senior Full Stack Engineer to build backend services and content experiences within a Unified CMS platform, using Node.js, React, and Next.js.

You will implement REST and GraphQL integrations, manage content models in Contentstack-like CMS, develop reusable UI blocks with SSR/SSG, and support personalization and A/B testing alongside AI-assisted development.