General proficiencies to look for when you want to hire node js developer
For dedicated node.js developers, part of their responsibilities is to integrate web applications across different platforms. Interactions with various desktop and mobile applications are essential. So you should hire a developer with experience in cross-platform development.
Understanding of security compliances.
Node.js is used for cross-platform development, and it is critical that the developer display understanding of different security options and processes for web, mobile, and desktop applications. This will help to protect data, combat hacking and theft of sensitive information. When looking through the resume of your potential developer, you should make sure to be satisfied with the person's security expertise.
Experience in frontend development.
Your potential node.js developer needs to be familiar with CSS3 or HTML5 and components of frontend development due to the need to integrate these components with the backend processes and elements. Knowing how the application will look on the frontend or client-side and understanding the language used for the frontend will help the node.js app developer with integrating both the frontend and backend.
Creating and handling multiple databases smoothly and harmonizing these databases into one is an essential task that requires necessary skills. Your potential Node.js developer must know how to thread the databases and integrate them without compromising the security of the databases. The developer should be familiar with relational databases and non-relational databases like MySQL, PostgreSQL, MariaDB, SQLite like MongoDB, CouchDB, Orchestrate.
Skill and Experience levels for node.js developers
Junior level Node.js Developer
Mid-level Node.js Developer
For Mid-level developers, they are expected to have at least 3 years of experience in using Node.js for applications with the knowledge of languages, frameworks, and databases like TypeScript/CoffeeScript, Express.js, Nest.js, Koa, React Native, Backbone, PostgreSQL, MongoDB, JQuery, Bootstrap 3/4, TypeScript, SQL. Previous work in user experience and the user interface is a must-have.
Senior Level Node.js Developer
This is the level of an experienced node.js programmer. The potential hire must have a repertoire of programming languages, frameworks such as Node.js: npm UI: HTML5/CSS3, LESS/SCSS, UIKit, Bootstrap, SVG, JS: Promises, Gulp, Browserify.
OOP, JSON, Koa, Meteor, LoopBack, Electrolyte, socket.io, mongoose, passport, ES6, Open Layers, GoogleMap API, Angular, React, experience with RESTful APIs; (in addition to the ones at mid-level). The developer should have experienced high load system projects, microservices, architecture, with knowledge of OAuth and security requirements. When you want to hire a node js developer at this level, having experience of 5-7 years is a must.