Phil Guerrant
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Phil Guerrant Email & Phone Number

Senior Software Engineer at Cobalt Iron
Location: Greater Seattle Area, United States 8 work roles
2 phones found area 303 and 650 LinkedIn matched
✓ Verified July 2026 3 data sources Profile completeness 86%

Contact Signals · 2 phones

Direct phone (303) ***-****
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Current company
Cobalt Iron
Role
Senior Software Engineer
Location
Greater Seattle Area, United States
Company size
44 employees

Who is Phil Guerrant? Overview

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Quick answer

Phil Guerrant is listed as Senior Software Engineer at Cobalt Iron, a with 44 employees, based in Greater Seattle Area, United States. AeroLeads shows phone signal with area code 303, 650 and a matched LinkedIn profile for Phil Guerrant.

Phil Guerrant previously worked as Principal Software Engineer at Sencha and Senior Software Engineer at Sencha.

Company email context

Email format at Cobalt Iron

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Cobalt Iron

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Profile bio

About Phil Guerrant

Front-end software engineer with a passion for beautiful and intuitive UI. I’ve spent the past 15 years of my life architecting and coding rich user interfaces on the web. I love collaborating with and helping other team members achieve success.Former member of the Ext JS engineering team at Sencha. Specializing in: JavaScript, HTML, CSS/Sass, JS FrameworksAlso proficient in: Java/JSP, C#/ASP.NET, PHP, Swift, WPF, CocoaCertifications:Sun Certified Java Programmer (SCJP)Certified Scrum Master (CSM)

Listed skills include Javascript, Web Applications, User Interface, Agile Methodologies, and 31 others.

Current workplace

Phil Guerrant's current company

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Cobalt Iron
Cobalt Iron
Senior Software Engineer
lawrence, kansas, united states
Website
cobaltiron.com
Employees
44
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8 roles

Phil Guerrant work experience

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Senior Software Engineer

Current
Cobalt Iron
Sep 2017 - Present

Principal Software Engineer

Sencha

Architected flexible theming system for framework components, enabling users to easily customize the look and feel of their applications.Implemented CSS3-based layout system for Ext JS modern browsers.Created fast and efficient “infinite” virtual scroller for data grids.Added enhancements and fixes to support integration of Ext JS with React.Provided design and architecture guidance to team members.Doubled as Scrum Master for the Ext JS scrum team.

Jan 2017 - Sep 2017

Senior Software Engineer

Sencha

Integrated Ext JS and Sencha Touch into one unified frameworkImplemented support for touch events, gestures, and touch scrolling.Contributed to numerous improvements throughout the framework, including responsive design, application architecture, and performance.Wrote guides, documentation and technical articles.Created responsive example applications.Implemented and contributed to the design of the “Triton” theme, a flat, modern theme for Ext JS.Helped lead the development of Sencha Test 1.0, a cross-browser testing solution.

Aug 2013 - Dec 2016

Software Engineer

Sencha

Primary architect of Ext JS Themes. Developed and launched three new themes for the framework, each with it’s own new look-and-feel. Implemented support for right-to-left languages throughout Ext JS.Implemented JavaScript decoders for binary AMF0/AMF3 formats.Implemented visual styling to support WAI-ARIA compliance.Wrote guides and technical documentation.Contributed to fixes and improvements throughout all areas of the Ext JS framework.Created example applications and demos.

May 2011 - Jul 2013

Ui Architect

Esm

Lead the development of an Ext JS application with a C#/ASP.NET MVC server side.Provided guidance to the team on user interface architecture and best practices.

Oct 2010 - May 2011

Ui Engineer

Local Matters, Inc.

Developed large highly performant and scalable websites for directory publishers and real estate companies such as https://yellow.co.nz and https://www.realestate.com.au.Created an in-house JavaScript library to streamline development across multiple teams.

Sep 2008 - Oct 2010

Web Developer

Network Solutions

Maintained and developed the front-end of http://networksolutions.com (jQuery, CSS, JSP), and performed SEO optimization.Developed a web application for managing pay-per-click ads, written using Ext JS, jQuery and Java EE.

Sep 2007 - Aug 2008

Operations Supervisor And Software Developer

Raymond James Financial

Architected and delivered innovative web applications to reduce costs through automation of manual tasks.Supervised a team of 8.Managed daily operations in the Portfolio Reporting and Pricing department.

May 2002 - May 2007
Team & coworkers

Colleagues at Cobalt Iron

Other employees you can reach at cobaltiron.com. View company contacts for 44 employees →

DN David Nicholson David Nicholson Colleague at Cobalt IronSt Joseph, Michigan, United States View → BF Bruna Ferreira Bruna Ferreira Colleague at Cobalt IronSão Paulo, Brazil View → NG Neal Gronset Neal Gronset Colleague at Cobalt IronGreater Chicago Area, United States View → BS Brian Smith Brian Smith Colleague at Cobalt IronKansas City Metropolitan Area, United States View → GM Graham Mcgivern Graham Mcgivern Colleague at Cobalt IronUtica, Michigan, United States View → AM Adam Mclaughlin Adam Mclaughlin Colleague at Cobalt IronPrairie Village, Kansas, United States View → HF Hank Fridell Hank Fridell Colleague at Cobalt IronKansas City, Kansas, United States View → MS Mary Spurlock Mary Spurlock Colleague at Cobalt IronLawrence, Kansas, United States View → MS Michael Sopko Michael Sopko Colleague at Cobalt IronMorris Plains, New Jersey, United States View → RM Rachel Mclaughlin Rachel Mclaughlin Colleague at Cobalt IronKansas City Metropolitan Area, United States View →
FAQ

Frequently asked questions about Phil Guerrant

Quick answers generated from the profile data available on this page.

What company does Phil Guerrant work for?

Phil Guerrant works for Cobalt Iron.

What is Phil Guerrant's role at Cobalt Iron?

Phil Guerrant is listed as Senior Software Engineer at Cobalt Iron.

What is Phil Guerrant's phone number?

AeroLeads has found 2 phone signal(s) with area code 303, 650 for Phil Guerrant at Cobalt Iron.

Where is Phil Guerrant based?

Phil Guerrant is based in Greater Seattle Area, United States while working with Cobalt Iron.

What companies has Phil Guerrant worked for?

Phil Guerrant has worked for Cobalt Iron, Sencha, Esm, Local Matters, Inc., and Network Solutions.

Who are Phil Guerrant's colleagues at Cobalt Iron?

Phil Guerrant's colleagues at Cobalt Iron include David Nicholson, Bruna Ferreira, Neal Gronset, Brian Smith, and Graham Mcgivern.

How can I contact Phil Guerrant?

You can use AeroLeads to view verified contact signals for Phil Guerrant at Cobalt Iron, including work email, phone, and LinkedIn data when available.

What skills is Phil Guerrant known for?

Phil Guerrant is listed with skills including Javascript, Web Applications, User Interface, Agile Methodologies, Git, Software Development, Ajax, and Html 5.

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