Senior Full-Stack Engineer: React & Node (Cloud-Native)

Applaudo; Región Metropolitana de Santiago; On-site; CLP 18,000,000 - 24,000,000; Full time

Job summary

Applaudo is seeking a Senior Full Stack Developer who delivers scalable, reliable, high-performing applications across frontend and cloud-native backend environments. You will work with TypeScript across the stack, from crafting intuitive user interfaces to developing serverless services and data models.

You will own solutions within established architectures, emphasize clean, testable code, and collaborate across Agile teams while upholding security and reliability. Fluent English is required.

Qualifications

• Ideal candidates have a Bachelor's degree or equivalent professional experience in computer science or related field.
• Extensive experience delivering production-grade full stack applications across frontend and backend.
• Strong background building modern web apps with React (preferably React 19) and libraries like TanStack Router/Query, Mantine, Zustand.

Responsibilities

• Design, develop, and maintain production-quality full-stack applications using TypeScript, React, and Node.js.
• Build modern frontend features with React 19 and libraries such as TanStack Router, TanStack Query, Mantine, Zustand.
• Develop and maintain AWS serverless backend services using Lambda, API Gateway, and DynamoDB.
• Design and optimize DynamoDB data models with Single-Table Design and access-pattern optimization.
• Implement RESTful APIs and validate inputs/outputs using OpenAPI-driven Zod schemas.
• Provision and maintain cloud infrastructure using AWS CDK and follow security practices.
• Develop automated unit tests with Vitest and support API and end-to-end testing with Playwright/Postman.
• Ensure secure coding to protect PII and PCI data.
• Own deployments, production troubleshooting, root-cause analysis, and reliability.
• Collaborate with Engineering, QA, and Product teams to meet requirements.
• Follow architecture decisions, coding standards, CI/CD workflows, and quality practices.
• Participate in Agile ceremonies and contribute to continuous improvement.

Skills

Full stack development

TypeScript

React

AWS serverless

DynamoDB design

OpenAPI & Zod

AWS CDK

CI/CD tooling

Testing (Vitest/Playwright)

Secure coding & PCI/PII

Archi & ADRs

English proficiency

Education

Bachelor’s degree in Computer Science or related field

Tools

React 19

TanStack Router

TanStack Query

Mantine

Zustand

OpenAPI

Zod

AWS Lambda

API Gateway

DynamoDB

AWS CDK

Bitbucket Pipelines

SonarCloud

ESLint

Vitest

Playwright

Postman

Job description

Applaudo is seeking a Senior Full Stack Developer who delivers scalable, reliable, high-performing applications across frontend and cloud-native backend environments. You will work with TypeScript across the stack, from crafting intuitive user interfaces to developing serverless services and data models.

You will own solutions within established architectures, emphasize clean, testable code, and collaborate across Agile teams while upholding security and reliability. Fluent English is required.