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New York City

22 Cortlandt Street, Suite 1101
New York, NY 10007
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Building user-centric web-based applications for your business.
Front End Development
DOOR3 is a top front-end development services company for GUI development. We work with Angular (AngularJS), React (ReactJS), Backbone (BackboneJS), and Knockout (KnockoutJS) to create advanced web-based applications.

Front-End Development

Front End-Development DOOR3

Your business’ front-end experience is your face to the world; you can make sure you’re putting your best foot forward, attracting and retaining customers, and creating systems that work for your employees a smartly built front-end framework. DOOR3’s multiplatform and cross-industry front-end development expertise ensures that we have the technical chops to build the applications and software your company needs using the latest cutting-edge languages and technologies.

Your users expect your website or application to more than just work; they expect it to work for them. They’re used to intuitive interfaces and technology that seamlessly integrates into every aspect of their lives and expect the same from your products and applications. Having an outdated user experience doesn’t just hold you back; it can actually hurt your business.

That’s where DOOR3 comes in. We’ve been doing front-end development as a dedicated practice since before early front-end frameworks and we bring more than a decade of insight to the table. With all that experience, our team knows how to apply the latest technologies and frameworks to the front end development process — and that means longer software life and the best return on investment for you.

Here’s just a sample of our many front-end development capabilities:

Angular
We use this comprehensive JavaScript framework maintained by Google to build scalable modular web solutions to meet your business needs.

React
We utilize this powerful JavaScript library maintained by Facebook to create flexible solutions for your most dynamic content that can work with your existing code.

Backbone
We create complex web experiences with this flexible JavaScript library that gives you the freedom to create rich site interactions.

Knockout
We craft simple solutions to complex user interactions with this rich JavaScript library that’s great for complicated data relationships and creating sophisticated, templated interfaces.

Our Front End Development Principles:

We start with strategy.

We don’t begin building until we have a thorough understanding of your business, how it works, and its unique needs through our business analysis practice. Your goals are our goals and our projects only succeed if they help your business run or sell better. We build in that thinking from our first steps together.

We’re fully integrated.

Our front-end developers are fully integrated into DOOR3’s user-centric culture, and our user experience design group understands the technical context for which they are designing. This integration ensures the most efficient path from idea to software, as well as the best solutions for the real people who use your products.

We’re futurists.

At DOOR3, we’re constantly evolving our front-end development capabilities and looking ahead to the next framework. We bring our extensive experience with front-end technologies to ensure that what we make is built to keep up with your business — and the rapidly changing digital world.

We make great things.

The best way to keep your web presence modern and relevant is through top-notch software architecture. We set you up for success by building forward-thinking, sustainable applications on the latest back-end and front-end development frameworks to provide significant ROI and lifetime value for your company.

Front End Development Trends

Virtual and Augmented Reality

Front-end development doesn’t just mean thinking about on-screen experiences anymore. Interfaces need to meet the demands of user experience in a three-dimensional space. Great new frameworks have sprung up to meet the demands on technology, but it’s a space that is evolving quickly and we’re tracking the latest.

Mobile Frameworks

As smartphones become more central to our lives, best practices for mobile user interfaces grow more sophisticated to meet the demand. As front-end development frameworks extend to encompass mobile capabilities (see Angular NativeScript and React Native), we’re continuously evolving our capabilities in concert with this trend. Our versatility means that we can explore innovative ways of delivering native application functionality while also serving your desktop and web front-end development needs with one unified team.

About DOOR3 A Leading Front-End Development Company | Call for a FREE Quote

Door3-Logo-Small-200x200For over 16 years, DOOR3 has been serving small to large Fortune 500 companies worldwide including AIG, MORGAN STANLEY, HP, FRESH DIRECT, OLYMPUS, WELLS FARGO, ELIZABETH ARDEN, CLINIQUE, NEW BALANCE, and TIMEWARNER among others. We capitalize on our strong Technology, Design, and Strategy backgrounds to help our clients build powerful, reliable software applications, engineer platform software, and design software to run a wide variety of products. DOOR3 serves the financial services, legal, healthcare, non-profit and education, construction and contracting, healthcare, manufacturing, insurance; consumer services, retail, and eTail industries. DOOR3 Business Applications Inc. was founded in 2002 and is based in New York, NY.

2016 Top Web Design Agency

DOOR3 was named a Top Web Design Agency in New York City by Clutch, a business-to-business market research firm based in Washington, D.C.

Client Testimonials:

The technology that DOOR3 has provided has increased our efficiency, provided a better customer experience and has helped us build a reputation within the Canadian insurance industry as the most innovative broker in the country.
Matt Alston, Co-Founder, Surex Direct
DOOR3 has consistently shown themselves to be ahead of the competition . . . DOOR3 and delivering on promise should be considered synonymous.

Matt Carona, VP of Product and Business Development, Qello

Clients We've Worked With: