Ext JS Developer
535 Labs - Danville, CA

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535 Labs is looking for an experienced Ext JS Developer to help architect, build, iterate and manage customer applications across a variety of industries.

While the ideal candidate’s passion is user interface development, s/he also has some experience in interaction design, information architecture, and/or visual design. Also, this individual is someone who is extremely proficient where presentation layer development & lightweight prototyping is concerned, but also has a firm understanding of how to design / develop user interfaces in a way that results in the highest possible degree of usability.

You will be part of a fast-paced team driving ongoing product innovation for a broad range of large corporate clients. The ideal candidate will be comfortable in a fluid start-up environment and will bring an energetic, fun and creative approach to their work.

The Opportunity

Design and development of web and mobile applications using Ext JS and Architect.

Hands on assistance with user-interface design for customer applications
Writing sample applications, proofs-of-concept and demonstrations for both sales and training purposes

Development and execution of testing plans designed to ensure 535 Labs services engagements meet customers’ technical and business objectives

Assist 535 Labs marketing team by writing occasional blogs and technical Articles or through delivering technical presentations at conferences


Fluency in JavaScript, HTML, CSS, AJAX, XML, JSON, and Ext JS

Coding to JSON and RESTful APIs

Strong knowledge of modern Rich Internet Application frameworks

Accountability and a strong customer service ethos

An ability to achieve results while operating independently with minimal guidance

Excellent written and oral communications with good presentation skills


Experience with server-side languages and frameworks (Java, Rails, PHP)

Knowledge of Solaris and/or Linux system administration as well as the networking tier

Mobile application development experience (Sencha Touch preferred)

Working knowledge of database architectures, SQL and ability to interpret ERDs and other relational specifications

This position requires that you be able to work remotely, and attend on-site meetings from time to time as needed.