Back End Developer (Nodejs) - 1 month Sign on Bonus

Position Overview:

We're looking for a Backend Engineer to build reliable, scalable systems that power Everfit's continued growth. You will design and develop backend services and APIs, improve system performance and architecture, and deliver secure, high-quality solutions that support our products and users at scale.

Your impact

Backend Development & Architecture

• Develop, test, and maintain reliable, scalable backend services using Node.js.
• Design and implement RESTful APIs that support Everfit's products, users, and integrations.
• Contribute to the evolution of our microservices architecture, data models, and backend infrastructure.
• Translate business and customer requirements into secure, high-performance technical solutions.
• Make thoughtful technical decisions that balance delivery speed, scalability, and long-term maintainability.

Engineering Quality

• Write clean, testable, observable, and maintainable code.
• Participate actively in code reviews, sharing constructive feedback and learning from other engineers.
• Build automated tests and monitoring to improve system reliability and prevent regressions.
• Identify technical debt, performance bottlenecks, and reliability risks, then collaborate with the team to address them.
• Contribute to clear technical documentation and consistent engineering standards.

AI-First Engineering

• Use AI-assisted development tools to improve coding, testing, debugging, documentation, and code review workflows.
• Explore practical ways to integrate AI capabilities into Everfit's products and backend services.
• Share effective AI workflows, tools, and learnings with the engineering team.
• Apply sound engineering judgment when reviewing and validating AI-generated solutions.

Collaboration & Delivery

• Work closely with Product Managers, Business Analysts, QA, Design, and fellow engineers to deliver high-quality features.
• Participate in scrum rituals, technical discussions, prototyping, and solution design.
• Communicate technical considerations, risks, and trade-offs clearly to both technical and non-technical stakeholders.
• Collaborate across squads on shared services, platform standards, and system integrations.
• Take ownership of features throughout their lifecycle from discovery and development to release, monitoring, and continuous improvement.

Who you are

• 5+ years of professional experience working with Node.js (ES6).
• Intermediate English communication skills, you're willing to grow with us.
• Understanding of microservices and distributed systems.
• Solid understanding of RESTful API design and backend architecture.
• Experienced with Express.js, MongoDB, Redis, and PostgreSQL.
• Familiar with unit testing frameworks like Jest or Mocha, and passionate about code quality.
• Able to write clean, maintainable, and well-documented code.
• Comfortable working in an Agile/Scrum development environment.
• Strong problem-solving and analytical skills.

Nice to have:

• Hands-on experience with AWS services (e.g., S3, ECS, Lambda).
• Familiarity with message queues (e.g., Kafka, SQS).
• Knowledge of containerization and orchestration tools (e.g., Docker, ECS).
• Familiar with authentication/authorization mechanisms (e.g., OAuth2, JWT).