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Sebastian Toomey Email & Phone Number
Senior Product Designer
at
Stellar Cyber
1 work email found
@mandiant.com
2 phones found area 415
LinkedIn matched
✓ Verified Jun 2026
4 data sources
Profile completeness 100%
Current company
Role
Senior Product Designer
Location
San Francisco, California, United States
Who is Sebastian Toomey? Overview
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Quick answer
Sebastian Toomey is listed as Senior Product Designer at Stellar Cyber, based in San Francisco, California, United States. AeroLeads shows a work email signal at mandiant.com, phone signal with area code 415, and a matched LinkedIn profile for Sebastian Toomey.
Sebastian Toomey previously worked as Lead UX Designer at Google Cloud Security and Senior UX Designer at Mandiant (Part Of Google Cloud). Sebastian Toomey holds Ms, Architecture & Industrial Design from Georgia Institute Of Technology.
Company email context
Email format at Stellar Cyber
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{first}.{last}@mandiant.com
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AeroLeads found 1 current-domain work email signal for Sebastian Toomey. Compare company email patterns before reaching out.
Profile bio
About Sebastian Toomey
I’m a senior designer specializing in UX for enterprise applications for technical users. I thrive in collaborative, cross-functional teams focused on helping customers achieve their goals in order to improve business outcomes.
Listed skills include User Experience, User Interface Design, User Centered Design, Information Architecture, and 54 others.
Current workplace
Sebastian Toomey's current company
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7 roles
Sebastian Toomey work experience
A career timeline built from the work history available for this profile.
Lead Ux Designer
- UX design lead for multiple Google Cloud Security applications including Mandiant Digital Threat Monitoring (DTM), Research Tools, and for projects supporting Mandiant Managed Defense (MDR) services.
- Projects I lead contributed to growing the DTM customer base by 20% and more than a 50% improvement in key usage metrics
- Collaborated with product and engineering managers, UI engineers, and other technical and product stakeholders to define product requirements
- Delivered mockups, prototypes, and design specifications
- Facilitated design sprints, workshops, and lead stakeholder brainstorming sessions
Nov 2022 - Nov 2024
Senior Ux Designer
UX design lead on multiple Mandiant Advantage XDR platform applications including threat monitoring, malware file analysis, and hunting. Contributed UI components, UX patterns, and icons to Mandiant’s UX design system.Note: Mandiant split from FireEye in 2021
Oct 2021 - Nov 2022
Senior Ux Designer
UX design lead for Data Explorer, a large data visualization and exploration application addressing critical cybersecurity use cases. Supported multiple design projects across the FireEye EDR product suite.
Dec 2018 - Sep 2021
Freelance Ux Designer
Self Employed
Provided remote UX and UI design support to Research Square, an academic publishing services company based in Durham, NC. Collaborated with stakeholders to define requirements and delivered high fidelity mockups and detailed design specifications.
Jun 2018 - Dec 2018
Ux Designer
Designed web-based products and features across the PLOS product portfolio. Collaborated with product managers, executive stakeholders, and web developers to define product requirements. Produced wireframes, page flow maps, interaction diagrams, clickable prototypes, high-fidelity mockups, and conducted user research and usability testing. UX lead for.
Dec 2010 - Apr 2018
Sr. Web Designer
Designed UI for PLOS web properties including icons, illustrations, and other graphical assets. Created and updated style guides. Implemented designs in XHTML/CSS, supporting 508 Accessibility Guidelines through semantically composed markup and current best practices. Collaborated with JavaScript developers on implementation of AJAX enabled features.
Jun 2007 - Dec 2010
3 education records
Sebastian Toomey education
Ms, Architecture & Industrial Design
Georgia Institute Of Technology
Ba, Liberal Arts, Furniture Design
Marlboro College
Fine Art
Carnegie Mellon University
FAQ
Frequently asked questions about Sebastian Toomey
Quick answers generated from the profile data available on this page.
What company does Sebastian Toomey work for?
Sebastian Toomey works for Stellar Cyber.
What is Sebastian Toomey's role at Stellar Cyber?
Sebastian Toomey is listed as Senior Product Designer at Stellar Cyber.
What is Sebastian Toomey's email address?
AeroLeads has found 1 work email signal at @mandiant.com for Sebastian Toomey at Stellar Cyber.
What is Sebastian Toomey's phone number?
AeroLeads has found 2 phone signal(s) with area code 415 for Sebastian Toomey at Stellar Cyber.
Where is Sebastian Toomey based?
Sebastian Toomey is based in San Francisco, California, United States while working with Stellar Cyber.
What companies has Sebastian Toomey worked for?
Sebastian Toomey has worked for Stellar Cyber, Google Cloud Security, Mandiant (Part Of Google Cloud), Fireeye, Inc., and Self Employed.
How can I contact Sebastian Toomey?
You can use AeroLeads to view verified contact signals for Sebastian Toomey at Stellar Cyber, including work email, phone, and LinkedIn data when available.
What schools did Sebastian Toomey attend?
Sebastian Toomey holds Ms, Architecture & Industrial Design from Georgia Institute Of Technology.
What skills is Sebastian Toomey known for?
Sebastian Toomey is listed with skills including User Experience, User Interface Design, User Centered Design, Information Architecture, Web Design, Wireframes, Interaction Design, and Web Development.
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