David Saunders
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David Saunders Email & Phone Number

Senior Frontend Engineer at Mainstay
Location: San Jose, California, United States 11 work roles 4 schools
1 work email found @sixredmarbles.com 3 phones found area 818 and 512 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 3 phones

Work email d****@sixredmarbles.com
Direct phone (818) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Senior Frontend Engineer
Location
San Jose, California, United States

Who is David Saunders? Overview

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Quick answer

David Saunders is listed as Senior Frontend Engineer at Mainstay, based in San Jose, California, United States. AeroLeads shows a work email signal at sixredmarbles.com, phone signal with area code 818, 512, and a matched LinkedIn profile for David Saunders.

David Saunders previously worked as Principal Frontend Engineer at Tread and Senior Software Engineer at Heap. David Saunders holds Ba, Anthropology, History, German from University Of California, Davis.

Company email context

Email format at Mainstay

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dsaunders@sixredmarbles.com
76% confidence

AeroLeads found 1 current-domain work email signal for David Saunders. Compare company email patterns before reaching out.

Profile bio

About David Saunders

Hey there! I'm a senior frontend developer and I specialize in creating user-friendly, accessible, performant, and responsive websites and applications. My passion lies in crafting high-quality products, and I thrive in collaborative environments. I'm currently exploring new opportunities and I'm eager to connect with you about how my skills and expertise can contribute to your projects and organization.

Listed skills include Wordpress, Seo, Editing, Css, and 26 others.

Current workplace

David Saunders's current company

Company context helps verify the profile and gives searchers a useful next step.

Mainstay
Mainstay
Senior Frontend Engineer
San Jose, CA, US
AeroLeads page
11 roles

David Saunders work experience

A career timeline built from the work history available for this profile.

Senior Frontend Engineer

San Jose, Ca, Us

Principal Frontend Engineer

Current

Toronto, Ontario, Ca

• Appointed as one of the first-ever team leads in the company, assuming key management responsibilities from the CEO and VP of Engineering. Leads a cross-functional team of four frontend and backend engineers, facilitating agile ceremonies, and consistently ensuring that project goals and timelines are met.• Introduced and implemented front-end testing frameworks, building the necessary infrastructure and promoting a culture of quality assurance among frontend engineers.• Developing essential application features that align with customer and internal business needs, prioritizing user experience enhancements and playing a key role in securing multiple sales deals.

Mar 2024 - Present

Senior Software Engineer

San Francisco, California, Us

• Contributed as a key member of Heap's Product-Led Growth (PLG) team, actively shaping and executing strategies to drive product adoption and user engagement.• Guided Heap's Design System Working Group, leading initiatives to develop and promote Heap's component library to provide a more consistent, user-friendly, and accessible experience for Heap's users.• Architected and developed an email content generation service that provided highly personalized data insights to customers, resulting in 60% open rates and 10% click-through rates.• Championed the development and implementation of strategic paywall initiatives, proactively enforcing Heap's data usage standards and effectively distinguishing between Heap's free and paid plans. Achieved a substantial $200-300k/quarter increase in renewal and new ARR.• Created a custom Slack integration for interfacing with LaunchDarkly that saved Heap $100k/year in LaunchDarkly seat fees and resolved major points of friction for internal support teams.• Successfully refactored core Heap features from Backbone to React, unblocking major product initiatives and significantly improving developer velocity.• Enhanced the developer experience by optimizing CI/CD pipelines, fine-tuning webpack and ESLint configurations, and implementing comprehensive monitoring across the application stack. • Collaborated with product managers, designers, and other engineers to scope projects, refine requirements, and define timelines.• Advocated for on-call improvements and refined alerting and monitoring to reduce page frequency.

May 2022 - Dec 2023

Senior React Software Engineer

Phoenix, Az, Us

• Core member of Tuft & Needle's Design System team, helping to architect and build a component library utilized by multiple retail websites.• Conducted code reviews to ensure that design system components meet accessibility, brand, and technical standards.• Mentored and led pair programming exercises with mid- and junior-level developers.

Oct 2021 - May 2022

React Developer

Eden Prairie , Mn, Us

• Developed, maintained, and refactored customer-facing web applications using React, Redux, TypeScript, Redux Saga, React Testing Library, and Jest.• Built and updated a suite of reusable components in a monorepo environment.• Worked closely with a distributed team of frontend, backend, and QA engineers in an agile scrum setting.• Ensured that applications meet modern web accessibility standards (WCAG 2.0, WAI-ARIA, etc.).• Served as a subject matter expert for internal business stakeholders.• Handled front-end deployments to QA and staging environments.• Conducted code reviews and led technical demos.

Aug 2020 - Sep 2021

Front End Developer

New York, Ny, Us

• First development hire for Prosek Partners, a leading financial public relations and communications firm.• Responsible for defining the company's technical stack and development processes and procedures.• Spearheaded the creation and configuration of an internal, reusable component library.• Developed proprietary web applications using React and a custom-built internal API. • Performed full-stack WordPress development, including creating custom themes and plugins.• Created custom, reusable component libraries for websites and web applications.• Identified tools to assist in collaboration between departments and to improve the efficiency of Prosek's design, development, QA, and launch efforts.• Managed the development phase of projects, regularly communicating with clients and ensuring that projects adhere to scope, budget, and timeline requirements.• Lead search engine optimization efforts within the organization.• Drafted hosting contracts, maintenance contracts, and scope of work documents.• Conducted WordPress training sessions for clients after site delivery.

Jan 2019 - Aug 2020

Front End Developer

Austin, Tx, Us

• Lead developer for all custom WordPress site development.• Developed dynamic and static websites using HTML, CSS, JS (ES6), PHP, and various web APIs. • Built custom, reusable WordPress plugins and themes. • Conduct code reviews, lead team training sessions, and provide mentorship for junior developers.• Consistently completed projects within scope, budget, and timeline.• Completed maintenance tasks for projects post-launch, including implementing new feature requests, resolving issues, and performing security updates.• Assisted in project and requirement scoping.• Assisted in QA efforts for all company-developed sites. Sites developed while at Monkee-Boy Web Design, Inc. can be viewed from my profile's Projects section.

Aug 2015 - Jan 2019

Front End Development Manager

Austin, Texas, Us

• Developed DNN, WordPress, and static websites using HTML, CSS, JavaScript/jQuery, and SQL.• Served as the primary point of contact for a number of entrepreneurial, private industry, and government projects.• Consistently completed projects within scope, budget, and timeline. • Delegated project tasks to the front-end development team.• Conducted one-on-one on reviews with front-end development team members.• Performed QA on managed projects. • Organized and lead training sessions for the front-end development team.

Apr 2014 - Aug 2015

Project Manager

Medford, Massachusetts, Us

• Managed teams of front-end and back-end developers to create and maintain custom content management systems for our clients. • Trained and led internal and freelance teams on content entry and content management system use for all assessment-related projects. • Managed day-to-day operations for digital and print production projects. • Negotiated business terms and pricing with clients. • Regularly completed projects within the projected time and budgetary requirements. • Created schedules, workflow and pricing trackers, and budgets.• Performed IT tasks for the Austin office, including setting up networks and maintaining computer systems.• Was responsible for all office management tasks for the Austin office, including coordinating moves, ordering supplies, and communicating with building management.

Nov 2012 - Mar 2014

Business Developer

Portland, Oregon, Us

• Lead business development efforts for a prominent securities industry licensing examination preparation firm.• Negotiated successful business transactions with prominent financial institutions and wealth management firms throughout the Pacific Northwest.• Marketed and sold study material for financial securities exams.• Maintained the company's website.

Oct 2011 - Jan 2012

Independent Contractor

New York, Ny, Us

• Copyedited high school-level German textbook for print production. • Corrected German spelling and grammatical errors.

Aug 2011 - Oct 2011
4 education records

David Saunders education

Ba, Anthropology, History, German

University Of California, Davis

Ecology And Evolutionary Biology

Ucla

Anthropology, German

Humboldt-Universität Zu Berlin

Education record

Oak Park High School
FAQ

Frequently asked questions about David Saunders

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

What company does David Saunders work for?

David Saunders works for Mainstay.

What is David Saunders's role at Mainstay?

David Saunders is listed as Senior Frontend Engineer at Mainstay.

What is David Saunders's email address?

AeroLeads has found 1 work email signal at @sixredmarbles.com for David Saunders at Mainstay.

What is David Saunders's phone number?

AeroLeads has found 3 phone signal(s) with area code 818, 512 for David Saunders at Mainstay.

Where is David Saunders based?

David Saunders is based in San Jose, California, United States while working with Mainstay.

What companies has David Saunders worked for?

David Saunders has worked for Mainstay, Tread, Heap, Tuft & Needle, and Optum.

How can I contact David Saunders?

You can use AeroLeads to view verified contact signals for David Saunders at Mainstay, including work email, phone, and LinkedIn data when available.

What schools did David Saunders attend?

David Saunders holds Ba, Anthropology, History, German from University Of California, Davis.

What skills is David Saunders known for?

David Saunders is listed with skills including Wordpress, Seo, Editing, Css, Html, Microsoft Office, Social Media, and Copy Editing.

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