Senior Software Engineer (Full Stack)

Casado; Brazil; Remote; BRL 180,000 - 280,000; Full time

Job summary

Casado is hiring a Senior Software Engineer (Full Stack) for a remote, long-term engagement (PJ). You will design, develop, and maintain scalable software that powers our premium e-commerce and consignment platform.

Collaboration with product teams and engineers is key to delivering impactful features. You will work across Java/Kotlin, JavaScript/TypeScript, React, GraphQL, and modern cloud tech, with focus on scalable architectures and quality, testable code.

Qualifications

• 7+ years of professional software development experience.
• Strong proficiency in Java or Kotlin, with Rails experience.
• Expertise in modern JavaScript (ECMAScript), HTML, and CSS.
• Experience building applications with React and related ecosystem tools (Node.js, npm).
• Familiarity with RESTful APIs, Git, TypeScript, IDEs, version control, and deployment tools.
• Understanding of GraphQL and database design fundamentals.

Responsibilities

• Design, develop, and maintain high-quality, scalable software solutions.
• Build and enhance customer-facing applications supporting business initiatives.
• Contribute to technical architecture and engineering decisions.

Skills

Java

Kotlin

Ruby on Rails

JavaScript

TypeScript

React

Node.js

RESTful APIs

Git

GraphQL

AWS Lambda

PostgreSQL

DynamoDB

Tools

Elixir

Job description

Senior Software Engineer (Full Stack)Location: RemoteContract: PJ (Long-Term)

About the OpportunityWe

We are seeking a kind, curious, and highly collaborative Senior Software Engineer (Full Stack) who enjoys solving complex technical challenges and building exceptional user experiences. This team is responsible for creating seamless and compelling digital experiences that make it easy for customers to engage with a premium e-commerce and consignment platform. The engineering culture emphasizes collaboration, continuous learning, individual growth, and professional development.

What You'll Do

• Design, develop, and maintain high-quality, scalable, performant, and testable software solutions.
• Build and enhance customer-facing applications that directly support strategic business initiatives.
• Contribute to technical architecture and engineering decisions that shape the future of the platform.
• Collaborate closely with product managers, designers, and engineers to deliver impactful features.
• Review pull requests and provide thoughtful, constructive feedback to teammates.
• Participate in pair programming and knowledge-sharing activities across the team.
• Deploy production-ready code and support applications throughout the software development lifecycle.
• Continuously learn and explore new technologies, design patterns, and engineering practices.

Technology Stack

You will have the opportunity to work with a modern technology stack including:

• Java
• Kotlin
• JavaScript
• TypeScript
• GraphQL
• Kafka
• AWS Lambda
• PostgreSQL
• DynamoDB

Legacy services currently include:Ruby on RailsElixirReact

Required Experience & Skills

• 7+ years of professional software development experience.
• Strong proficiency in Java or Kotlin, along with experience working in Ruby on Rails environments.
• Expertise in modern JavaScript (ECMAScript), HTML, and CSS.
• Experience building applications with React and related ecosystem tools, including Node.js and npm.
• Familiarity with RESTful APIs, Git, TypeScript, IDEs, version control systems, and deployment tools.
• Understanding of event-driven architectures, GraphQL, and database design fundamentals.
• Strong problem-solving skills and a user-centric engineering mindset.
• Interest in retail, e-commerce, luxury consignment, sustainability, or circular economy business models.

Preferred Qualifications

• Experience implementing or maintaining Kafka-based event streaming solutions.
• Experience working with Elixir.
• Experience decomposing monolithic applications into microservices.
• Familiarity with distributed systems and service-oriented architectures.

What Makes You Successful

• You are curious, adaptable, and continuously seek opportunities to learn.
• You thrive in collaborative environments and enjoy mentoring fellow engineers.
• You balance technical excellence with pragmatic decision-making.
• You care deeply about delivering value to users through technology.
• You are excited by the opportunity to contribute to a mission-driven organization focused on sustainability and premium resale experiences.