Senior Full Stack Developer, Node + React

Workana; Belo Horizonte; Teletrabalho; BRL 80.000 - 120.000; Tempo integral

Resumo da oferta

A U.S.-based SaaS startup seeks a Senior Full Stack MERN Developer to enhance their existing MVP into a scalable, production-ready platform. You will refine inefficient code, debug complex issues, and design MongoDB integrations. This remote role requires expert knowledge of MongoDB and Node.js, along with excellent English communication skills. You will work closely with the CTO, solving real production challenges and growing into a leadership position as the team expands.

Serviços

Direct collaboration with a technical founder / CTO

Long-term role solving real production challenges

Remote role with U.S. time zone collaboration

Opportunity to grow into a lead role

Qualificações

• Expert in the MERN stack: MongoDB, Express.js, React.js, Node.js.
• Deep knowledge of MongoDB indexes, performance, and triggers.
• Strong backend skills with Node.js and AWS infrastructure.

Responsabilidades

• Take ownership of an existing MERN MVP and evolve it into a scalable product.
• Refactor and improve messy or inefficient code for better performance.
• Debug and resolve complex cross-layer issues quickly.

Conhecimentos

Expert in MERN stack

Deep MongoDB knowledge

Strong backend / infra skills

Experience integrating AI services

Excellent English communication

Availability during U.S. 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