Senior Fullstack AI Engineer (GenAI, AWS)

P\S\L Group; México; On-site; MXN 900,000 - 1,300,000; Full time

Job summary

P\S\L Group in Mexico is seeking a Senior Fullstack Application Developer to lead the design and development of advanced web applications that leverage Generative AI. You will build both frontend and backend, collaborating with cross-functional teams to deliver scalable, performant solutions in a cloud-native environment.

The role emphasizes React, TypeScript, Node.js, Python, and AWS serverless stack, with hands-on work on GenAI integrations and modern tooling like Next.js, Vercel, and

Qualifications

• Senior Fullstack Developer with frontend/backend responsibilities leveraging Generative AI.
• Experience with React (v18/19), TypeScript, and Yarn.
• Backend APIs using NodeJS and Python.
• Deploy serverless apps on AWS (Lambda, DynamoDB, API Gateway).
• Integrate GenAI APIs such as OpenAI GPT-4o and Vertex AI.
• Focus on performance, caching, and CDN strategies.

Responsibilities

• Build modern, responsive web interfaces using React (v18/19), TypeScript, and Yarn.
• Translate complex UI/UX designs into clean, responsive code.
• Write unit and functional tests; maintain high code coverage and code quality.
• Design and develop scalable and secure backend APIs using NodeJS and Python.
• Architect, deploy and maintain serverless applications on AWS using Lambda, DynamoDB, API Gateway.
• Integrate third-party services and GenAI APIs for intelligent application behavior.
• Implement and maintain website optimizations including front-end performance techniques, CDN usage, caching strategies and efficient media handling.
• Proven delivery of highly performant, scalable stacks – frontend and backend.

Skills

React

TypeScript

Node.js

Python

AWS

Serverless

APIs

GenAI

Testing

Tools

GitHub

Yarn

Vite

Webpack

NVM/NPM

Terraform

AWS SAM

Job description

P\S\L Group in Mexico is seeking a Senior Fullstack Application Developer to lead the design and development of advanced web applications that leverage Generative AI. You will build both frontend and backend, collaborating with cross-functional teams to deliver scalable, performant solutions in a cloud-native environment.

The role emphasizes React, TypeScript, Node.js, Python, and AWS serverless stack, with hands-on work on GenAI integrations and modern tooling like Next.js, Vercel, and