Senior Full Stack Mern Developer

Workana; Teletrabalho; BRL 120.000 - 160.000; Tempo integral

Resumo da oferta

A U.S. based SaaS startup is seeking a Senior Full Stack MERN Developer to work alongside the CTO. The role involves taking charge of an existing MERN MVP, enhancing it into a scalable product, and integrating AI services. Candidates should have deep knowledge of MongoDB and Node.js as well as excellent English skills. This is a remote position suited for someone based in Brazil or Argentina, with the opportunity to grow into a lead role in the future.

Serviços

Direct collaboration with a technical founder / CTO

Long-term role with real production challenges

Remote role with U.S. time zone collaboration

Opportunity to grow into a lead role

Responsabilidades

• 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.

Conhecimentos

MERN stack expertise (MongoDB, Express.js, React.js, Node.js)

Deep MongoDB knowledge

Backend infrastructure skills (Node.js, AWS)

AI integration experience

Excellent English communication

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.

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