Tech

What is a Front-End Developer?

Prepare to hire a front-end developer (M/F): role, responsibilities, required skills for the position, and salary

The front-end developer is an essential link in any tech company. They own the user experience and the optimization of web performance, turning mockups into functional, attractive interfaces. They design, develop, and optimize applications, websites, and software while ensuring smooth, intuitive navigation.

A few years ago, this role was often misunderstood and treated as a "webmaster" or "computer engineer." Today, the front-end developer is highly sought after, because their expertise directly influences user engagement and retention.

Role and responsibilities of the front-end developer

Just as a construction company calls on painters, tilers, and designers to physically embellish and enhance a structure once it's built, a tech company (or one whose business relies on a tech solution) needs front-end developers to code the interactive, dynamic interfaces that enable a smooth experience.

The front-end developer's place in your project

Front-end development is an indispensable skill for building web applications. It relies on essential technologies such as HTML5, CSS3, and modern JavaScript (ES6+), as well as frameworks like React, Vue.js, and Angular.

Just like the Back-end profile, any company looking to deliver an IT project that requires a user interface hires Front-end developers.

The user interface is the first thing the end user sees. It isn't responsible for technical functioning, but it directly impacts conversion rates and customer experience.

Role and responsibilities of the front-end developer

The Front-End developer is responsible for the front-office architecture and the performance of the user interface. Their role should be distinguished from that of the web integrator, whose role is limited to integrating the various mockups, but without implementing the interactions they contain.

The responsibilities of the front-end developer are as follows:

Bring a technical perspective to UX/UI Designers and the Product Owner to support them in specifying front-end tasks. This allows the product team to make the best choices to optimize development time, maintainability, and overall consistency of the application, both in terms of behavior and presentation.
Design solutions that meet the specifications and mockups provided by the designers. They define or adapt the application architecture and various implementation choices based on the features to develop.
Implement and maintain these technical solutions while ensuring good readability (accessibility), good performance (technical SEO), and a level of quality consistent with the project, team, and company context.
Document the project to facilitate maintenance and collaboration.
Set up or contribute to building a design system to ensure visual consistency.

In a small technical team with limited skills, the Front-end developer may be asked to take on UX/UI and integration responsibilities.

Team collaboration

The Front-end developer, both technical and creative, plays an intermediary role between the back office and design. They work with various counterparts:

Their leads: Lead Developer and Engineering Manager in a medium- or large-sized organization, CTO and VP in a smaller one.
The product team: UX/UI Designers and Product Owner.
Other technical contributors: Front-end, Back-end, and Full-stack developers, as well as the SysAdmin and the DevOps.

What kinds of problems does a Front-end developer tackle?

They have several:

Build web pages from the UX/UI designers' mockups
Improve the speed of a site
Responsive: deliver an interface that adapts to all the user's devices regardless of screen size.
Framework migrations to move to a framework better suited to the project or the technical staff.
Set up the front-end architecture and keep it functional and aligned with the project's evolution.
Markup for SEO to have a better-ranked site. This task will quickly be delegated in a large team.

What skills does a Front-end developer have?

Technical skills of the front-end developer

The front-end developer must master modern programming languages and frameworks:

JavaScript (ES6+), TypeScript, HTML5, CSS3.
Frameworks: React.js, Vue.js, Angular.
Web performance: optimizing resource loading and accessibility (WCAG).
Tools: Webpack, Vite, Babel, PostCSS.
Experience with Progressive Web Apps (PWA) and mobile-first optimization.

💡Explanation:

Today, companies with a strong front-end culture will be attentive to mastery of modern approaches to the role — that is, the ability to build front-end applications with a component system using frameworks such as React or Vue.

A foundation in back-end development — that is, the hidden part of the application not visible to the user, used to manipulate and store data — as well as some infrastructure basics will be very useful to the front-end developer.

In day-to-day work, they directly interface with these other parts. These full-stack skills make them able to make minor changes across the entire codebase.

Essential soft skills for a front-end developer

UX/UI sensitivity: predisposes the front-end developer to see details, be meticulous in execution, and to come forward with proposals to create intuitive, attractive interfaces.
Ability to communicate, listen, and remain humble — both for exchanges with peers and for individual progression.
Rigor and organization to ensure code maintainability.
Ability to focus and a taste for sustained effort, allowing them to be effective in moving tasks forward.
Continuous tech monitoring to integrate new web trends.

Technologies and platforms used

JavaScript and its frameworks: React, Vue, Angular
TypeScript, the language developed by Microsoft and based on JavaScript to improve and secure code production
React Native for mobile
Electron for desktop
HTML, the code used to structure the content of a web page. It is considered a markup language, not a programming language.
CSS, the code used to style web pages with style sheets. It is considered a style sheet language, not a programming language.

What training is needed to become a Front-end developer?

There is no standard training to become a front-end developer. The typical academic path is engineering school, computer science school, or a university curriculum specialized in computer science.

It's during this path that they will get interested in web development and more specifically in the front-end. They will become familiar with the role and acquire its fundamentals during their first experiences in a company.

Beyond that, a self-taught path or a career change is entirely feasible, but requires extra investment in personal projects. They will be the only way for a company to assess the level of a candidate with this kind of profile.

More than 3 years of experience in a company with strong visibility within the tech community will outweigh formal training, except in cases where the training is particularly recognized.