A JavaScript developer is responsible for implementing the front-end logic that defines the behavior of the visual elements of a web application. A JavaScript developer is also responsible for connecting this with the services that reside on the back-end. They are usually supported by back-end web developers, who are responsible for server-side application logic. JavaScript developers often work alongside other front-end web developers who specialize in markup and styling.
A JavaScript developer is responsible for implementing the front-end logic that defines the behavior of the visual elements of a web application. A JavaScript developer is also responsible for connecting this with the services that reside on the back-end. They are usually supported by back-end web developers, who are responsible for server-side application logic. JavaScript developers often work alongside other front-end web developers who specialize in markup and styling.
Even though a JavaScript developer typically works on the front-end, the programming language itself is not limited to front-end use only. In case you are looking for a back-end JavaScript developer, please refer to our Node.js Developer Job Description Template.
Writing a good job description and a corresponding job advertisement requires proper specification of your concerns. Posting a generic web developer job description when you are looking for an advanced JavaScript web developer will bring numerous applications from people who are specialized in building back-end web services, or web designers who have little to no knowledge about JavaScript.
There are some technologies and knowledge that are common to all web developer jobs. This article will provide you with a sample JavaScript developer job description that will help you write a perfect job ad and assure that you easily find and hire the person that matches your specific criteria.
JavaScript Developer - Job Description and Ad Template
Copy this template, and modify it as your own:
Company Introduction
{{Write a short and catchy paragraph about your company. Make sure to provide information about the company’s culture, perks, and benefits. Mention office hours, remote working possibilities, and everything else you think makes your company interesting.}}
Job Description
We are looking for a JavaScript Developer who is motivated to combine the art of design with the art of programming. Responsibilities will include implementing visual elements and their behaviors with user interactions. You will work with both front-end and back-end web developers to build all client-side logic. You will also be bridging the gap between the visual elements and the server-side infrastructure, taking an active role on both sides, and defining how the application looks and functions.
Responsibilities
Develop new user-facing features
Build reusable code and libraries for future use
Ensure the technical feasibility of UI/UX designs
Optimize applications for maximum speed and scalability
Assure that all user input is validated before submitting to back-end services
Collaborate with other team members and stakeholders
{{Add other responsibilities here that are relevant}}
Skills and Qualifications
Strong understanding of JavaScript, its quirks, and workarounds
Basic understanding of web markup, including HTML5 and CSS3
Good understanding of {{Depending on the specific case, a developer should have the knowledge of advanced JavaScript libraries and frameworks such as AngularJS, KnockoutJS, BackboneJS, ReactJS, DurandalJS etc.}}
Good understanding of asynchronous request handling, partial page updates, and AJAX
Proficient understanding of cross-browser compatibility issues and ways to work around such issues
Familiarity with JavaScript module loaders, such as Require.js and AMD
Familiarity with front-end build tools, such as Grunt and Gulp.js
Proficient understanding of code versioning tools, such as {{Git / Mercurial / SVN}}
Good understanding of browser rendering behavior and performance
{{Make sure to mention any framework, library, or any other technology related to your development stack}}
{{List education level or certification you require}}
As with any technology, there’s knowing JavaScript and then there’s really knowing JavaScript. Here are proven, effective techniques and questions for finding true masters of the language.
Toptal is a marketplace for top JavaScript developers and coders. CEOs, CTOs, and management at top companies and start-ups work with Toptal JavaScript freelancers to augment their development teams for JavaScript development, app development, web development, and other software development projects to achieve their business needs.
United StatesToptal Member Since November 26, 2013
Coding HTML, CSS, and JavaScript since his armed forces days in 1997, Jay enjoys bringing value to clients via eCommerce solutions, legacy integrations, and optimized PHP and JavaScript-driven applications. His preferred DevOps environment is AWS, where he has strong skills in (and not limited to): Relational Database Services (RDS), Redshift, Dynamo DB, Data Migration Services (DMS), Lambda (serverless and microservices), Cloudwatch, Cloudtrail, and Event Bridge.
Along with strong communication skills and an exemplary work ethic, Tyler brings his hands-on experience with a wide range of programming languages. Recently, though, his focus has been directed towards JavaScript libraries. Throughout his career, he’s worked on multiple agile teams as a core developer and is now interested in working on anything JavaScript-related.
Justin is a technical professional with a passion for learning and 15+ years of experience leading teams to build enterprise-grade distributed applications that solve real-world problems. He is a firm believer that collaboration across all facets of a business, from development to marketing to sales, is required to succeed in this endeavor.
David has been developing websites and web applications for all of his adult life. As a software engineer, he's worked for many diverse software companies from early-stage startups to Google. David is experienced with many web frameworks and environments, but he particularly enjoys developing with Meteor.js. He appreciates the importance of quality code as well as the need to meet scheduling demands.
James is a software engineer and consultant focused on web development. He has over a decade of experience in both startup and enterprise business environments building solutions where full-stack skills, creative thinking, and high attention to detail are key, and fast turnaround is paramount.
Starting as a Google intern, Ahmad has been leading the development of B2B services and admin web apps since 2015. On projects, he typically makes the architectural decisions about state management, framework selection, testing strategies, folder structure, team load and task allocation, and mentoring junior developers. Ahmad also has built shared UI components libraries, reusable CSS code, higher-order components, and best practices for scalable and maintainable codebases.
Ricardo has been coding for over 20 years, having worked on projects in more than ten programming languages. He has co-founded companies, worked in a few successful startups as CTO, and managed distributed teams of developers and product designers. His recent work has ranged from data science and machine learning to high-performing web and mobile applications, including Web3 and crypto.
With a solid mathematical knowledge base and a professional software developer background, Stepan has the experience and skills to fulfill most software engineering role. During his professional career, he's worked on various projects including large enterprise systems, web development, and cloud computing. Stepan is always eager to explore new areas in computer science and apply bleeding-edge technologies.
Anton is a senior C# developer with over ten years of experience developing both native (WinForms, WPF) and web (ASP.NET) applications for .NET and .NET Core platforms. He has expertise in leading teams, mentoring developers, automating processes, and developing web applications' front-end. He writes exceptionally clean code and is a stickler for testing, ensuring accuracy and stability.
Davor is a senior full-stack developer with 9+ years of experience, skilled in crafting scalable and efficient solutions. Proficient in both monolithic and microservice architectures, Davor is a versatile asset to any team and project with a deep understanding of front-end and back-end technologies. With a passion for problem-solving and constant learning, he is the perfect candidate to drive your company's growth.
Abdelhamid is a former GitHub professional software engineer with 13+ years of experience and a master's degree and PhD in computer science and engineering. He also worked in executive and leadership positions for different small and medium startups. Abdelhamid's specialties include JavaScript, TypeScript, Node.js, Python, REST API, GraphQL, Redis, NoSQL, SQL, React, Next.js, microservices, CI/CD, and cloud services.
