Senior Full Stack MERN Developer

Workana; Belo Horizonte; Teletrabalho; BRL 167 400 - 279 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Direct collaboration with a CTO

Long-term role solving production challenges

Opportunity to grow into a lead role

Resumo da oferta

A U.S.-based SaaS startup is looking for a Senior Full Stack MERN Developer. The candidate will evolve an existing MERN MVP into a production-ready product and improve code quality. Applicants must be based in Brazil or Argentina, with strong MERN skills and availability during U.S. working hours. This is a remote position offering direct collaboration with the CTO.

Qualificações

• Expert in MERN stack: MongoDB, Express.js, React.js, Node.js.
• Experience integrating AI services into production applications.
• Availability during U.S. West Coast working hours.

Responsabilidades

• Take ownership of an existing MERN MVP and evolve it into a scalable product.
• Refactor and improve code for clarity and performance.
• Design and optimize MongoDB schemas and triggers.
• Contribute to new product features end-to-end.

Conhecimentos

MERN stack expertise

Deep MongoDB knowledge

Strong backend skills

AI service integration

Excellent English communication

Node.js async/memory management

AWS services usage

Descrição da oferta de emprego

Senior Full Stack MERN Developer

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

Seniority level

• Mid-Senior level

Employment type

• Contract

Job function

• IT Services and IT Consulting

Industries

• IT Services and IT Consulting