Senior Full Stack Developer, Node + React

Workana; Florianópolis; Presencial; BRL 371.000 - 478.000; Tempo integral

Resumo da oferta

A U.S.-based SaaS startup is looking for a Senior Full Stack MERN Developer to collaborate directly with the CTO. This remote role is ideal for candidates in Brazil or Argentina, emphasizing ownership of a MERN MVP and responsibilities that include enhancing architecture while ensuring clean code practices. Join us to tackle real production challenges! Excellent communication in English is required, along with availability during U.S. West Coast hours.

Serviços

Direct collaboration with a technical founder

Opportunity for growth into a lead role

Long-term role solving real challenges

Qualificações

• Expert in MERN stack with hands-on experience.
• Deep understanding of MongoDB including indexing and performance tuning.
• Strong skills in AWS and CI/CD pipelines.

Responsabilidades

• Take ownership of an existing MERN MVP and evolve it into a scalable product.
• Refactor and improve inefficient code for better performance.
• Debug and resolve complex issues quickly across multiple layers.

Conhecimentos

Expert in MERN stack: MongoDB, Express.js, React.js, Node.js

Deep MongoDB knowledge: indexes, performance, aggregation, triggers

Strong backend/infrastructure skills: Node.js, AWS

Experience integrating AI services into production apps

Excellent English communication

Availability during U.S. West Coast working hours

Descrição da oferta de emprego

We are a U.S.-based SaaS startup looking for a Senior Full Stack MERN Developer to work directly with our hands-on CTO. This is a senior role for someone who can not only ship features but also improve architecture, enforce clean code practices, and scale an MVP into a production-grade SaaS platform.

We are prioritizing candidates based in Argentina or Brazil to align with U.S. West Coast (Los Angeles) working hours.

What You’ll Do

• Take ownership of an existing MERN MVP and evolve it into a scalable, production-ready product
• Refactor and improve messy or inefficient code for clarity, maintainability, and performance
• Debug and resolve complex cross-layer issues quickly (MongoDB, Node.js, React, CI / CD)
• Design and optimize MongoDB schemas, indexes, Atlas Search, and triggers
• Build event-driven workflows with MongoDB triggers
• Integrate AI / LLM services (OpenAI, AWS Comprehend, embeddings, NLP features) into production apps
• Support and improve Twilio-based messaging and webhook integrations
• Contribute to new product features end-to-end (backend + frontend)

Requirements

• Expert in MERN stack: MongoDB, Express.js, React.js, Node.js
• Deep MongoDB knowledge: indexes, performance, aggregation, triggers
• Strong backend / infra skills: Node.js async / memory, AWS (EC2, S3, Lambda), CI / CD pipelines
• Experience integrating AI services into production apps
• Excellent English communication (mandatory)
• Availability during U.S. West Coast working hours (PST / PDT)
• Based in Argentina or Brazil

Benefits

• Direct collaboration with a technical founder / CTO
• Long-term role solving real production challenges (not just CRUD apps)
• Remote role with U.S. time zone collaboration
• Opportunity to grow into a lead role as the team expands