Remote Senior Full-Stack Engineer - Next.js/Node.js

X-Team International; United States; Remote; USD 120,000 - 180,000; Full time

Benefits offered by this job

Flexible schedules

Wellness stipends

Support for professional and personal成

Job summary

X-Team International is seeking a Senior Full-Stack Engineer for a fully remote, contractor role serving a global nutrition and fitness platform. You will own high-impact web features from Next.js and Node.js microservices, while interfacing with Rails components.

The role emphasizes web growth, SEO, and rapid delivery with AI-assisted workflows. Ideal candidates have senior experience in full-stack development, strong data modeling across SQL/NoSQL, and a collaborative mindset to thrive in

Qualifications

• Senior-level commercial experience developing full-stack web applications with Node.js and Next.js.
• Self-starter autonomy and the ability to own features in a cross-functional squad.
• Experience collaborating with design assets and systems in Figma.
• Strong data modeling across relational (MySQL) and NoSQL/caching layers (MongoDB, DynamoDB, Redis).
• Familiarity with Rails backends is a plus (legacy).

Responsibilities

• Architect, build, and optimize high-converting web features, landing pages, and flows for growth and SEO using Next.js and Node.js services.
• Develop end-to-end features spanning Next.js frontends, Node.js middle-tier services, and Rails backends with REST and GraphQL APIs.
• Model and query data efficiently across MySQL, MongoDB, DynamoDB, and Redis caching layers.
• Integrate AI tools like Claude into daily coding, refactoring, and test generation workflows.
• Contribute to sprint planning, refactoring, and deployment activities while maintaining code quality and ownership.

Skills

Full-stack web dev (Node.js & Next.js)

Autonomy & self-motivation

Cross-functional collaboration

Figma collaboration

SQL & NoSQL databases (MySQL, MongoDB,

Tools

Next.js

Node.js

Ruby on Rails

REST APIs

GraphQL

MySQL

MongoDB

DynamoDB

Redis

Figma

Job description

X-Team International is seeking a Senior Full-Stack Engineer for a fully remote, contractor role serving a global nutrition and fitness platform. You will own high-impact web features from Next.js and Node.js microservices, while interfacing with Rails components.

The role emphasizes web growth, SEO, and rapid delivery with AI-assisted workflows. Ideal candidates have senior experience in full-stack development, strong data modeling across SQL/NoSQL, and a collaborative mindset to thrive in