How to Hire Frontend Developers in 2025 & Avoid Costly Mistakes
March 12, 2025•11 min read
Every website you visit on the internet exists thanks to frontend development. And behind every component, like buttons, navigational menu, and contact form, is a frontend developer — the expert who transforms UI/UX concepts into user-friendly interfaces.
If you're at the stage where you need to hire a frontend developer, you want a modern, high-performance website that looks great and converts visitors into customers.
The hiring process itself is straightforward, but hiring a professional frontend developer is a whole different challenge. Even more challenging is avoiding mistakes that could cause you to lose money.
At The Frontend Company, we hire and work with numerous frontend developers every week to build high-quality platforms and applications for our clients. That's why we decided to share insider knowledge and show how we hire the best frontend developers for our clients.
Key Points
A frontend developer builds websites and web apps' user interface (UI) using HTML, CSS, and JavaScript.
Frontend development includes creating interactive, responsive, and visually appealing web pages.
Uses frameworks and libraries like React, Vue.js, and Angular to develop dynamic interfaces.
Ensures websites are mobile-friendly, fast, and optimized for a seamless user experience.
Writes, tests, and debugs code to fix performance and usability issues.
Works with APIs to connect frontend with backend systems.
Frontend developers must be skilled in HTML, CSS, JavaScript, version control (Git), and UI/UX principles.
To hire a frontend developer, define your project needs, review portfolios, test coding skills, and choose the right hiring model (freelancer, agency, or in-house).
Who Are The Frontend Developers And What They Do
Before you hire frontend developers, you must understand their role. Frontend developers are architects in web development who take static design mockups with color schemes, button placements, animations, and user journeys and transform them into an interactive, fully functional website or application.
The holy trinity of frontend developers is HTML (for content), CSS (for styling), and JavaScript (for interactivity) - core web technologies that they use to build the visual and interactive parts of a website or web app.
But their role goes far beyond just writing code. They:
Make websites responsive so they look and function perfectly on desktops, tablets, and smartphones.
Bring interactivity to life, implementing features such as navigation menus, dropdowns, animations, and complex dashboards.
Optimize performance, making sure pages load quickly and users don't abandon a slow site or app.
Work with APIs and backend developers, ensuring seamless data flow between the front and back end.
Moreover, their job doesn't end once a website or app goes live. Frontend developers provide ongoing support, fixing bugs, updating features, and improving performance.
What Elements of a Website or App Do Frontend Developers Create?
When you click a button, fill out a form, or hover over an animation, you interact with a frontend developer's work. They are responsible for:
Navigation bars and menus
Forms, input fields, and authentication pages (logins, sign-ups, checkout flows).
Animations, sliders, and transitions.
User dashboards and data visualizations.
Images, videos, and buttons
A frontend developer bridges the gap between design and functionality and crafts digital experiences to keep users engaged and ensure every move feels smooth and intuitive. Now, let's move to the skill set that a professional frontend developer must have.
Key Skills Every Frontend Developer Should Have
If you plan to hire frontend developers, remember to hire for skills, not cheap rates. To make this process simpler and faster, you need to know what skill to look for. It's vital to ensure that the frontend developers have all the mentioned skills from our list.
1. Proficiency in HTML, CSS, and JavaScript
As mentioned above, every frontend developer must have a high knowledge of HTML, CSS, and JavaScript. These technologies form the foundation of everything a user sees and interacts with on a website or application.
Without strong command over these core technologies, frontend developers simply can't do their job.
2. Experience with JavaScript Frameworks (React, Vue.js, Angular)
The next crucial skill is the developer's experience with frameworks. They must know and work with React, Vue.js, or Angular because they make the development process faster and easier. A frontend developer with real experience should:
Build reusable, scalable UI components instead of writing repetitive code.
Manage state efficiently using Redux, Vuex, Pinia, or NgRx.
Integrate APIs seamlessly and handle real-time data.
Optimize performance by reducing unnecessary re-renders and improving load times.
Write maintainable, modular code to scale applications easily.
Moreover, a skilled frontend developer must know how to choose the proper framework for a project and use it effectively.
3. Responsive Web Design
A professional frontend developer must ensure a website looks and functions flawlessly on desktops, tablets, and mobile devices. This involves:
CSS Media Queries to adapt layouts to different screen sizes.
CSS Flexbox & Grid for fluid, responsive designs.
Mobile-first development to prioritize performance and usability.
Without these skills, a website can look broken or unusable on different devices, leading to a bad user experience and lost customers.
4. Performance Optimization
No one likes a slow website and search engines, too. A good frontend developer knows how to:
Optimize images & assets to reduce load times.
Minify CSS & JavaScript for faster performance.
Implement lazy loading so images and videos load only when needed.
Use caching strategies to speed up content delivery.
A well-optimized website improves user experience and helps with SEO rankings and conversion rates.
5. Cross-Browser Compatibility
A website should look and function the same on all major browsers (Chrome, Firefox, Safari, Edge). A professional frontend developer tests and fixes browser-specific issues using:
Feature detection tools like Modernizr.
CSS & JavaScript fallbacks for unsupported features.
Testing across different devices and screen resolutions.
Without this skill, websites might work perfectly in Chrome but break in Safari, leading to frustrated users and lost revenue.
6. API Integration
Most modern web applications need to fetch and display data from a backend server. Frontend developers must know how to:
Work with RESTful APIs and GraphQL to retrieve and send data.
Use Fetch API & Axios for handling HTTP requests.
Implement authentication & security when working with APIs.
Without API skills, a frontend developer can't build dynamic applications like dashboards, e-commerce platforms, or social media apps
7. Testing & Debugging
Bugs are inevitable, but a professional frontend developer knows how to find and fix them. Essential testing skills include:
Debugging tools like Chrome DevTools.
Unit testing with Jest or Mocha.
End-to-end testing with Cypress or Selenium.
A developer who doesn't test their code properly will deliver a buggy, unstable application, causing problems down the line.
8. Soft Skills (Often Overlooked but Crucial!)
Technical skills alone aren't enough. A truly professional frontend developer also has:
Problem-solving skills to tackle unexpected challenges.
Good communication to collaborate with designers, backend developers, and clients.
Adaptability & continuous learning to keep up with the fast-evolving frontend landscape.
Meeting deadlines to organize and prioritize activities and manage time.
A developer who can't communicate or adapt will struggle in a work environment.
How The Frontend Company Hire Frontend Developers for Clients
At The Frontend Company, we operate with a dedicated pool of experienced frontend developers ready to take on your projects. However, if our in-house developers are busy, we offer an alternative: we find and hire frontend developers for our clients.
Here's how we can help:
Access our internal pool of developers – Start your project quickly with our trusted experts.
Find the right developers for you – We handle the hiring process and vetting of developers.
Schedule a free consultation – Discuss your project with our team, and we'll suggest the optimal solution.
💡 To get started, book a free consultation with our manager, and we'll help you hire the best frontend developers for your project.
Now, let's look at our multi-stage hiring process, which only the most skilled frontend developers can pass
Stage 1 - Market Analysis and Information Gathering
After clients contact us and we have thoroughly collected and reviewed all relevant information about the project, as well as the exact requirements needed for the developer, we begin the hiring process. This process is designed to hire a frontend developer who not only has high technical skills but also perfectly matches the requirements and nuances of the current project.
Here is the list of answers we expect during first contact with our clients about hiring frontend developer:
Project name
Location and size
Industry
The technology stack that is required from candidates (frameworks, libraries)
Team size on the project
Stages of your recruitment process
Budget
Candidate skills
The main task of the candidate
The results the client expects from the candidate
Professional qualities that the client expects from the candidate
The most important part of this stage is to match the candidate with the cultural vibe of the client and make sure that person is a soul fit for the company.
We learn from our clients about their values and culture so that at the stage of communication with the HR manager, we understand that there will be a connection between all participants. Plus, we need to make sure that the cooperation is long-term, not that the person will leave our client after a few months.
Stage 2 - Initial CV Screening
In this step, we carefully assess each candidate's CV to identify those who align with your specific needs and expectations. This includes evaluating their experience in the field, their technical knowledge set, their proficiency in English, as well as other integral skills that are crucial for the success of the project.
Our goal is to ensure that each team member brings a wealth of knowledge and expertise to the table.
Moreover, we put a strong emphasis on the candidate's employment history. Specifically, we prioritize specialists who:
✔️ Have worked at least 6-12 months in one company, proving stability and commitment.
✔️ Show a consistent career trajectory rather than frequent job-hopping.
✔️ Demonstrate a strong work ethic and ability to integrate into long-term projects.
This is because we believe in the value of long-term cooperation and are dedicated to fostering lasting professional relationships with our employees.
On average, our HR department reviews over 100 CVs per position, filtering out only the top candidates who meet your rigorous standards.
This selection process guarantees that only the best-suited developers advance to the next stage.
Stage 3 - Introductory Interview with HR
At this critical stage in the selection process, we focus on the candidate's soft skills.
We place a high emphasis on values such as integrity, determination, and team spirit, which are essential for fostering a positive work environment.
This is also the time when we evaluate their communication skills, taking into consideration not just their ability to articulate their thoughts clearly but also their capacity for active listening, a key aspect of effective collaboration.
Proactivity is another quality we look for, as it often translates into a strong drive to take initiative and a readiness to tackle challenges head-on. We also assess the candidate's level of English, a crucial skill in today's globalized work environment.
Apart from these, we also look at other human qualities and professional skills that are relevant to the role they are applying for, ensuring that we select the best-fit candidate who can contribute meaningfully to our team. To assess a candidate's alignment with the company's values, we use the following methods:
Situational interviews (case studies)
Behavioral interviews (STAR: Situation - Task - Action - Result)
On average, we invite 50-60 candidates to HR interviews out of 100 CVs.
Stage 4 - Test Task
When we hire frontend developers for clients, we undertake rigorous screening of the candidates. This involves a detailed evaluation of their technical skills, with a special emphasis on the quality of code they write.
It's crucial that they not only demonstrate a strong understanding of coding principles but also show their ability to write clean, efficient, and maintainable code.
Furthermore, we look for individuals who are not only passionate about their work but also driven by the desire to make a significant impact.
Therefore, candidates who fall short in any of these areas are screened out.
On average, 20-30 candidates pass this stage out of 50-60 candidates.
Stage 5 - Technical Interview
After the test task, we schedule a new technical interview with the tech lead, CTO, and CEO. At this stage, it becomes imperative to select those candidates who not only demonstrate superior technical skills but also exhibit comprehensive theoretical knowledge.
It's equally important that these candidates have amassed substantial practical experience in their respective fields. This combination of skills ensures that the selected candidates are well-rounded and capable of contributing significantly to their roles.
On average, out of 20-30 candidates who have performed the test task the best, we choose only 3-5 of the highest quality candidates based on the results of the technical interview.
Stage 6 - Internal Call HR+CTO+CEO
Internal call HR+CTO+CEO, during which we engage in a meticulous selection process where we identify 1-2 of the most suitable candidates for the project. This decision is not merely based on their technical abilities or "hard skills" but also takes into consideration their interpersonal or "soft skills."
Furthermore, we ensure that these candidates align with the specific expectations and requirements outlined by the client for this particular project. Only after undergoing this rigorous selection process, these candidates can be proposed to the client.
Owing to this thorough vetting process, we have a remarkable success rate, with 10 out of 10 developers seamlessly transitioning through their probationary period in our company.
Stage 7 - Acquaintance With The Client
The last step when we hire frontend developers for clients is a careful selection process, yielding 1-2 of the most promising candidates and then arranging a call introduction with the client. This stage of the process is flexible and adaptable, hinging on a variety of factors such as the nature of the project, the client's preferences, and the proposed type of cooperation, be it outstaffing or outsourcing.
The client, at this juncture, is empowered to determine the format of this call. It can take the form of an introductory interview, where the participants have the opportunity to get to know each other. This is also the perfect opportunity to discuss the project in more detail, explicitly outlining the needs and expectations and paving the way for a fruitful working relationship.
Alternatively, the client might opt for a more comprehensive, full-fledged interview. In this scenario, in addition to the general queries about the project and the candidate, the client can delve into more technical aspects. This allows for an in-depth evaluation of the candidate's technical prowess and suitability for the specific demands of the project.
Our Key Principle When Hiring Frontend Developers
We filter out job switchers who change jobs for trivial reasons, such as a higher salary, etc. Our candidates are primarily those who are changing their current workplace because either their project was closed, funding was cut, the client merged, or something similar.
We do not consider those who change jobs because they became uninterested, didn't fit into the team, or for similar reasons. This is a fundamentally important decision because it affects our company's reputation.
Our Reasons for Rejecting Frontend Developer Candidates
Even highly technically skilled developers don't always pass our hiring process. Development expertise is important, but soft skills play a vital role in determining whether a candidate is a good fit for our clients.
1. Poor Communication Skills (Most Common Reason)
Many candidates are excellent developers but lack clear communication and collaboration skills. If we see that a candidate struggles to express ideas, can't articulate technical concepts, or isn't responsive in discussions, we reject them. Clients need developers who can work efficiently within a team, provide updates, and align with project goals — poor communication makes this impossible.
2. Lack of Proactivity & Problem-Solving Approach
We find developers who take the initiative rather than wait for instructions. If a candidate demonstrates a passive approach to problem-solving, lacks curiosity, or struggles to think critically, they are unlikely to thrive in a dynamic development environment.
However, this reason is not so critical as poor communication skills, as we can teach developers how to be proactive, how to communicate, and how to be a pro player in the team. In case they are ready to learn:)
3. Job-Hopping or Unstable Work History
We hire frontend developers who show commitment and reliability. If a candidate has frequent short-term roles (less than 6 months per company) without clear reasons, it raises red flags about their ability to stay engaged in long-term projects.
4. Inconsistent Technical Knowledge
Candidates always list React, Vue, or Angular skills on their CVs, and we must verify their expertise through technical assessments. Sometimes, they struggle with core frontend concepts, fail to demonstrate problem-solving, or rely too heavily on libraries without understanding the fundamentals, so we reject them.
5. Inability to Accept Feedback & Adapt
Software development is an iterative process that requires constant learning and adaptation. If a candidate appears defensive when receiving feedback, resists learning new technologies, or lacks a growth mindset, we do not hire them for our company and our clients.
Conclusion
To hire a frontend developer, you can follow our proven multi-stage process, but it still will be a challenge that requires time, expertise, and a structured approach.
However, if you're looking to start the development of your product fast and need a frontend expert, we're here to help.
At The Frontend Company, we've reviewed thousands of CVs and conducted hundreds of interviews, refining our hiring process to select only the best of the best.
💡 Feel free to contact us, and we will provide top-tier developers from our team or find and vet a candidate tailored to your project.
Skip the long hiring cycles and focus on building your product — we'll take care of finding the perfect developer for you.
FAQ
Alex Vasylenko is the founder of The Frontend Company, DBC and several other successful startups. A dynamic tech entrepreneur, he began his career as a frontend developer at Deloitte and Scandinavia's largest banking company. In 2023, Alex was honored as one of 'Top 10 Emerging Entrepreneurs' by USA Today.
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