Senior Full Stack Engineer (Cx Platform) (Santa Fe, Argentina)

Felix; Buenos Aires; Hybrid; ARS 138,361,000 - 199,855,000; Full time

Benefits offered by this job

Professional growth

Competitive USD-based compensation

Exciting projects

Flextime (remote/office)

Job summary

AgileEngine is seeking a Senior Full Stack Engineer to build backend services and content experiences within a Unified CMS platform. You will work with Node.js, React, and Next.js to develop REST and GraphQL integrations, manage content models in a headless CMS, and support personalization and A/B testing.

AI-assisted development practices are part of daily work. The role emphasizes strong backend capabilities, SSR/SSG work with Next.js, and integration with Contentstack/Contentful/Strapi.

Qualifications

• 4+ years of software engineering experience.
• Strong Node.js and backend development.
• Next.js or similar SSR framework.
• Backend services and REST APIs.
• GraphQL or gRPC.
• Third-party API integrations.
• 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 practices only - not AI engineering/LLM expertise required.
• Personalization and A/B testing experience.

Responsibilities

• Build and maintain backend services and API integrations supporting Unified CMS and global web experiences.
• 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 experience

Backend development

REST APIs

GraphQL

SSR frameworks

Testing practices

Tools

Node.js

Next.js

Contentstack/Contentful/Strapi

Jest/Playwright/RTL

Git / CI/CD

ESLint / Prettier

Emotion / CSS-in-JS

Job description

WHY JOIN US

AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.

ABOUT THE ROLE

We are looking for a Senior Full Stack Engineer to build backend services and content experiences within a Unified CMS platform. Working in Node.js, React, and Next.js, this person develops REST and GraphQL integrations, manages content models in a headless CMS, and supports personalization and A/B testing. AI-assisted development practices are part of the daily workflow.

MUST HAVES

• 4+ years of software engineering experience
• Strong Node.js and backend development
• Next.js or similar SSR framework
• Backend services and REST APIs
• GraphQL or gRPC
• Third-party API integrations
• 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

NICE TO HAVES

• Emotion or CSS-in-JS
• Storybook/Chromatic
• Accessibility testing
• Koa, Express.js, or similar
• Redis or other caching tools
• Performance and caching optimization
• Google Maps integrations

WHAT YOU WILL DO

• Build and maintain backend services and API integrations supporting Unified CMS and global web experiences
• 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

PERKS AND BENEFITS

• Professional growth: Mentorship, TechTalks, and personalized growth roadmaps
• Competitive compensation: USD-based pay with education, fitness, and team activity budgets
• Exciting projects: Modern solutions with Fortune 500 and top product companies
• Flextime: Flexible schedule with remote and office options