Remote Positions: Node.js Developer. (Jr / Mid / Se
Core Responsibilities
Experience & Education
• Junior: Some commercial or strong academic/bootcamp experience in JS/TS + Node.js
• Mid: 2+ years of professional Node.js experience, with demonstrable projects
• Senior: 5+ years in back-end development (Node.js, microservices), proven leadership on complex projects
• Education: SŠ s maturitou (or equivalent); IT-related fields are a plus
Core Responsibilities
Develop & maintain back-end services: Primarily in Node.js (TypeScript/JavaScript)
• Build new features & refactor code: Focus on robust, maintainable solutions
• Integrate with databases & APIs: (MongoDB, PostgreSQL, REST services)
• Monitor performance & logs: Help ensure reliability of the infrastructure
• Collaborate with the team: Code reviews, knowledge sharing, and feature planning
(For Senior roles: Leading technical designs, setting architectural standards, mentoring colleagues.)
Core Skills & Proficiency
1. Node.js / JavaScript / TypeScript
• Junior: Familiarity with Node.js fundamentals, some hands-on coding or academic projects
• Mid: Comfort with Node.js frameworks (Express/Koa), experience with REST APIs in production
• Senior: Deep expertise in Node.js, microservices, and architectural best practices
2. Database Handling (MongoDB, PostgreSQL, or similar)
• Junior: Basic CRUD operations, understands data modeling fundamentals
• Mid: Experience with schema design, performance considerations
• Senior: Can optimize queries, manage complex migrations, advise on database architecture
3. Version Control (Git/Bitbucket)
• Junior: Understands basic branching & merging
• Mid: Familiar with pull requests, code review processes
• Senior: Establishes best practices, resolves conflicts at scale
4. Testing & Quality
• Junior: Writes basic unit tests, understands testing frameworks
• Mid: Comfortable with unit/integration tests, continuous integration
• Senior: Champions testing strategy, code quality standards, and coverage metrics
Additional / Preferred Skills
• Docker & Kubernetes (containerization/orchestration)
• Knowledge of Strapi, Koa.js, RabbitMQ or similar
• API Documentation (OpenAPI/Swagger)
• Communication Protocols: SOAP, XML-RPC, GraphQL
• IoT background (sensors, data collection)
• Domain knowledge in energy management or sustainability (nice-to-have)
Soft Skills & Mindset
• Attention to detail – writing clean, maintainable code
• Problem-solving – capable of translating requirements into workable solutions
• Collaboration – works effectively in a team, open to code reviews
• Ownership & Accountability – drives tasks from planning to deployment
• Curiosity & Continuous Learning – especially for Junior/Mid who are growing; for Senior, leading by example