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CSO & CTO, Technology Services

25 Years of Experience

Previously At

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Technology Services/

Application Services and Modernization/

Front-end Development Services

Front-end Development Services – Build Engaging User Experiences

Transform your digital presence with Toptal’s Front-end Development Services. Our developers create fast-loading, seamless, and intuitive interfaces that keep users engaged, simplify complex interactions, and convert visitors into customers.

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Clients Served

25,000+

Total Vetted Professionals

20,000+

Toptal Total Projects Delivered

64,000+

Industries Served

300+

TRUSTED BY LEADING BRANDS

Our Services

Toptal Front-end Development Services

Our front-end development services help you build, enhance, and scale your digital solutions. We create responsive, intuitive user interfaces that are tailored to support your business’ needs.

Custom Front-end Development

Deliver tailor-made, high-performance front-end solutions that align with your business objectives and user needs.

UI/UX Design and Development

Create intuitive user interfaces and engaging experiences that enhance satisfaction and engagement.

Responsive Web Design Solutions

Employ mobile-first designs for a seamless user experience across all devices and screen sizes.

Front-end Accessibility Compliance

Build websites that meet WCAG standards, offering accessible experiences to every user.

Front-end Testing and Debugging

Utilize cutting-edge tools to identify and resolve front-end issues for a flawless user experience.

React and Vue.js Development

Leverage advanced JavaScript frameworks like React and Vue.js to build scalable and modern applications.

Progressive Web Applications

Build fast, reliable, and engaging progressive web applications that provide an app-like experience for users on any device.

Cross-platform Front-end Development

Develop applications that work seamlessly across web and mobile platforms, ensuring consistency.

API-driven Front-end Development

Integrate front-end applications with back-end systems using API technologies and comprehensive documentation.

Front-end Performance Optimization

Improve website speed, reduce bounce rates, and enhance user experience with efficient front-end code.

Single-page Applications

Develop dynamic single-page applications with modern frameworks for smooth user interactions and fast load times.

Enterprise Front-end Solutions

Develop robust and scalable front-end architectures tailored to complex business requirements.

Looking for guidance about the perfect front-end development service for your needs?

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PARTNERSHIP THAT WORKS

How We Deliver Front-end Development Services

Our front-end developers, with experience at leading companies, develop and deploy tailored solutions to meet your business needs and unique industry demands for sustainable results and long-term success.

Discover

A leader from our team assesses your business challenges, identifies opportunities, and recommends the most suitable engagement model.

Define

A Toptal leader will work with you to define your goals and service needs – from full end-to-end delivery to consulting services.

Develop

We will create your unique project timeline, process, and initial proposals, whether your goals involve enhancing user interfaces, improving front-end architecture, or optimizing performance.

Deploy

Toptal will get to work, tracking quality assurance, handling project management, and maintaining the delivery schedule.

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Ali Faraj

CSO & CTO, Technology Services

Ali is an IT leader and strategist with 25+ years of experience at IBM, Verizon, Thomson Reuters, and Cognizant. He has led global teams, building and scaling multibillion-dollar annual growth. As a turnaround and strategic growth expert, he has jump-started innovation, grown revenue, and improved productivity. He has worked across verticals and across a wide range of technologies including AI/ML, cloud, ERP, CRM, ITSM, cybersecurity, and others.Ali is an IT leader and strategist with 25+ years of experience at IBM, Verizon, Thomson Reuters, and Cognizant. He has led global teams, building and scaling multibillion-dollar annual growth. As a turnaround and strategic growth expert, he has jump-started innovation, grown revenue, and improved productivity.

Previously At

CUSTOMIZED SOLUTIONS

Front-end Development Solutions That Deliver Value

Toptal delivers leading front-end development services through its diverse talent network and flexible delivery models. We implement the right skills at each project phase, blending expertise from various roles for seamless execution.

Managed Delivery by Toptal
On-demand Talent and Teams

Managed Delivery by Toptal

End-to-end project delivery per your specific requirements.

CSO & CTO, Technology Services

Delivery Manager

Front-end Architect

Front-end Engineer

JavaScript Engineer

UI/UX Designer

Performance Optimization Expert

Front-end Engineer

Ali Faraj

CSO & CTO, Technology Services

Previously at

Technology Experience

25+ Years

Rachael Karaffa

Delivery Manager

Rachael serves as a Delivery Manager at Toptal with a focus on leading diverse global teams in developing innovative solutions for our clients. She works across multiple disciplines, including technology, marketing, and management consulting. Rachael specializes in managing people and client relationships, process optimization, and driving teams toward optimal business outcomes.

Previously Managed Client

Experience

9+ Years

Jose Miguel Arreola

Verified Expert in Engineering

16+ Years

of Experience

Front-end Architect

Jose is a software architect and developer with desktop, web, mobile apps, and big data expertise. He worked at Microsoft using Azure, power apps, flows, and the big data platform, one of the world's biggest clusters. He co-founded a last-mile delivery app called Encalientes that connects restaurants with customers and drivers. Jose's contributions to the app were critical for it to reach over 60,000 active users and become operational in four cities.

Previously at

Noelia Lopez

Verified Expert in Engineering

9+ Years

of Experience

Front-end Engineer

Noelia is a passionate software engineer with 9+ years of experience. What sets her apart is her ability to ramp up new technologies and her problem-solving skills quickly. She thrives on new challenges and enjoys pushing herself to learn and grow. She is passionate about mentoring junior developers and helping them unlock their full potential. She loves proposing new ideas, wearing many hats, and collaborating closely with different areas to achieve success.

Previously at

Laurynas Aleksiunas

Verified Expert in Engineering

6+ Years

of Experience

JavaScript Engineer

Laurynas has over six years of professional experience developing web and mobile applications with modern and efficient technologies. He is proficient in a diversified tech stack, including C#, .NET, Node.js, Python, TypeScript, JavaScript, React, and Angular. Laurynas has worked across the financial, eCommerce, video games, and software industries and is willing to embrace new challenges.

Previously at

Ritika Sharma

Verified Expert in Design

8+ Years

of Experience

UI/UX Designer

Ritika is a former UX designer at Amazon and a senior product designer at Toptal with over eight years of experience in the design field. She has worked in diverse teams of designers, developers, and managers for Big Tech and startups. With a master's in UX design, she's an expert in creating user-centric products. A detail-oriented UX professional, Ritika enjoys solving complex problems while meeting user and business needs through her interdisciplinary design, research, and management skills.

Previously at

Dory Zidon

Verified Expert in Engineering

22+ Years

of Experience

Performance Optimization Expert

Dory is an innovative software engineer with 22+ years of success, building customer-centric technology products and solutions. He built systems powering a $100 million advertising business for one client and improved performance by 15X for another. Dory has hired and trained teams and turned MVPs into full products. He has experience across a broad ecosystem of software, tools, and platforms, including Python, AWS, JavaScript, and React, to drive effective end-to-end execution of projects.

Previously at

Juan Carlos Arias Ambriz

Verified Expert in Engineering

20+ Years

of Experience

Front-end Engineer

Juan has more than 20 years of experience as a freelance front-end engineer and UX expert. His projects span a wide range but are rooted in his commitment to delivering exceptional user experiences. Juan has developed applications for high-profile clients and is known for his meticulous attention to detail.

Previously at

On-demand Talent and Teams

20,000+ vetted professionals, ready to deploy individually or in teams.

Front-end Developer

Full-stack Developer

Front-end Developer

Front-end Security Engineer

Front-end Test Automation Engineer

Web Performance Engineer

Product Manager

Interaction Design Specialist

Technical SEO Specialist

Verified Expert in Engineering

31+ Years

of Experience

Front-end Developer

Anderson is a software engineer who's strongly committed to delivering the best solution for the problem. In his more than 31 years in the IT industry, he's worked in projects from custom web development, collaboration portals, e-learning platforms, ERP, CMS, project management tools, mobile apps, reporting, business intelligence platforms up to IoT projects. Anderson has an MBA in project management and holds a PMP and MCSD .NET certification.

Previously at

Verified Expert in Engineering

14+ Years

of Experience

Full-stack Developer

Alonso is a professional software engineer with more than 14 years of experience creating highly maintainable software products. He’s a seasoned full-stack developer with test automation experience. Thanks to his excellent communication skills and a keen eye for specification analysis, Alonso delivers bug-free solutions that fully meet the client’s requirements.

Previously at

Verified Expert in Engineering

10+ Years

of Experience

Front-end Developer

Nicolas is a senior front-end engineer who has strong experience building bug-free, performant, and user-friendly mobile and web applications from scratch to production. His clients were well-known American organizations like NFL and Cox Automotive. Nicolas is a leader who has managed development teams and created project architecture. He expresses his passion for programming by participating in knowledge-sharing sessions, developing student learning guides, and mentoring.

Previously at

Verified Expert in Engineering

20+ Years

of Experience

Front-end Security Engineer

Claudio has over 20 years of software development experience and a cybersecurity degree. He has handled back-end, front-end, and full-stack development, DevSecOps, application security, penetration testing, and solutions architecture. With his combined expertise, Claudio focuses on helping companies by developing and architecting secure and resilient web and mobile applications.

Previously at

Verified Expert in Engineering

11+ Years

of Experience

Front-end Test Automation Engineer

Since 2014, Adrian’s been developing with Java along with a variety of testing frameworks (JUnit/TestNG, Selenium, Cucumber, REST Assured) and tools (JMeter, SoapUI, IntelliJ IDEA). He’s also worked with a number of teams and projects so he can communicate easily and can adapt to new work environments quickly. Work wise, Adrian is passionate about test automation and he joined Toptal to share his expertise on freelance projects around the world.

Previously at

Verified Expert in Engineering

11+ Years

of Experience

Web Performance Engineer

A seasoned front-end engineer, Sergei Garcia boasts a decade of impact. Notably, he orchestrated a dynamic overhaul at Typing.com through a 2.5-year front end refactoring to React, revolutionizing UX for its 35+ million users. Celebrated for creating high-performance applications with exemplary UX, Sergei's empathetic leadership and zest for continual growth establish him as more than a tech maestro. He's also an exceptional mentor who elevates every team he joins to new heights.

Previously at

Verified Expert in Product Management

15+ Years

of Experience

Product Manager

Sreedevi is a ground-up executive with more than 15 years of experience building, scaling, and transforming organizations at hypergrowth B2B and large companies. She has led teams across Google, Yara International, and startups within product, strategy, and customer success. Sreedevi has experience working across several high-profile organizations and enterprises, including Unilever, Mondelēz International, Philip Morris International, and The Tata Group.

Previously at

Verified Expert in Design

22+ Years

of Experience

Interaction Design Specialist

Evgeny is a self-described hybrid designer which means that he's very experienced and successful in both UX/UI and visual design. He has over 22 years of experience in designing the UX/UI for web and mobile applications across a broad range of industries including the internet of things (IoT), retail, computer games, design, real estate, and entertainment. His specialties are UX design, UI interaction design, and mobile/web application design.

Previously at

Verified Expert in Marketing

10+ Years

of Experience

Technical SEO Specialist

Vadym is an SEO expert with 10+ years of experience specializing in lead generation for B2B and B2C companies in the US, EU, and UK markets. He has expertise in software, hardware, betting, trading, law, educational, SaaS, and eCommerce sites. Skilled in technical and on-page SEO, page speed optimization (Core Web Vitals), and coding, he's developed his own SEO app and gained global experience working on different sites, which showcases his versatility and proficiency as an SEO professional.

Previously at

Get a Free Consultation Now Explore Managed Delivery

Looking for guidance about the perfect front-end development service for your needs?

UNRIVALED EXPERTISE

Our Talent Has Worked With Top Companies

Having previously worked with these leading global companies, our talent brings valuable insights and expertise to deliver world-class outcomes.

WHY ORGANIZATIONS CHOOSE US

Toptal in Action

Discover the cutting-edge benefits our clients enjoy globally from the Toptal network.

Toptal front-end engineer delivers 100x faster searches for information request system at leading global reinsurer.

Challenge: A global reinsurer needed to streamline user access management for sensitive, high-value data but struggled to find skilled front-end developers to balance security and usability.

Solution: Toptal provided a senior front-end engineer who rebuilt the client’s data request system in two months, automating workflows and enhancing security. Using TypeScript and React Query, they optimized performance, reduced server requests, and improved scalability.

Impact: The new system is 100x faster, leveraging browser caching to reduce server load. It supports 20-50x more users, with automated workflows and real-time notifications giving the client full control over user access.

Our Toptal developer works quickly, is proactive about coordinating with the team, and his code is high quality.

SVP, Data Strategy

Leading Global Reinsurance Firm

OUR THOUGHT LEADERSHIP

Explore Insights From the Front-end Development Field

Read the latest articles and resources to stay ahead in front-end development, responsive web design, modern frameworks, and more.

Front-end Frameworks: Solutions or Bloated Problems?

Modern front-end frameworks constantly require you to download an entire development environment, complete with dependencies, and compile your code before even trying to view it on your browser. Is this something good? Is it the problem we are building more complex sites, or the frameworks are complex on their on own and they introduce an unnecessary level of complexity.

Juan Carlos Arias Ambriz

Verified Expert in Engineering

Juan is a front-end engineer, developer, and architect with over a decade of experience in UX development. He has collaborated with high-profile clients, including Meta, where his commitment to enhancing UX produced world-class responsive designs, e-commerce platforms, and interactive applications.

Expertise

JavaScript Front-end

Previously at