# Sebastian Toomey

> Senior UX/Product Designer | Enterprise SaaS | UX Strategy | Cybersecurity | Enthusiastic team player

Location: San Francisco, California, United States
Profile: https://flows.cv/sebastiantoomey

I'm a senior designer specializing in enterprise applications for technical users, with expertise in crafting intuitive user experiences for complex SaaS products. Extensive experience within the cybersecurity and academic publishing industries, ensuring seamless interaction and usability in high-stakes environments. Adept at transforming intricate workflows into user-friendly solutions while adhering to industry-leading design principles. A strong collaborator with cross-functional teams, driving innovation and aligning user needs with business objectives to enhance both productivity and security.

## Work Experience
### Senior Product Designer @ Stellar Cyber
Jan 2025 – Jan 2025 | San Francisco Bay Area
Led product and UX design initiatives for new features and usability improvements across the Stellar Cyber XDR platform, including Detection Management, Query Builder, Licensing, and Scheduling workflows.
• Partnered with product managers and engineers to define feature requirements and align functionality with appropriate licensing models.
• Conducted user research to inform feature design, validate solutions, and uncover opportunities for workflow optimization.
• Leveraged an AI-enhanced design workflow using ChatGPT and Figma Make to accelerate ideation and prototyping.

### Lead UX Designer @ Google Cloud Security
Jan 2022 – Jan 2024 | San Francisco Bay Area
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.
• Led projects that 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

### Senior UX Designer @ Mandiant (part of Google Cloud)
Jan 2021 – Jan 2022 | San Francisco Bay Area
UX design lead on multiple Mandiant Advantage cybersecurity platform applications.
• Lead designer for threat monitoring, malware file analysis, and threat hunting products. 
• Designed UI library components, UX patterns, and icons for Mandiant’s design system.

### Senior UX Designer @ FireEye, Inc.
Jan 2018 – Jan 2021 | San Francisco Bay Area
UX design lead for FireEye Data Explorer, a large data visualization and exploration application addressing critical cybersecurity use cases. 
• Supported multiple design projects across the FireEye EDR product suite.
• Designed component library for use by FireEye’s engineering teams.

### UX Design Consultant @ SWT Consulting
Jan 2018 – Jan 2018 | San Francisco Bay Area
Provided remote UX and UI design support to Research Square, an academic publishing services company.
• Collaborated with stakeholders to define requirements.
• Delivered rounds of high fidelity mockups through multiple iterations.
• Provided detailed design specifications to the implementation team.

### UX Designer @ Public Library of Science
Jan 2010 – Jan 2018 | San Francisco Bay Area
Led design initiatives for PLOS journals and internal editorial tools.
• Principal UX designer for Aperta manuscript submission and management system. 
• Designed workflows to support manuscript submission and editorial processes. 
• Conducted formative qualitative user research, usability testing.


## Education
### MS in Architecture & Industrial Design
Georgia Institute of Technology

### BA in Liberal Arts, Furniture Design
Marlboro College

### Fine Art
Carnegie Mellon University


## Contact & Social
- LinkedIn: https://linkedin.com/in/sebastiant
- Portfolio: https://www.sebastiantoomey.com/

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Source: https://flows.cv/sebastiantoomey
JSON Resume: https://flows.cv/sebastiantoomey/resume.json
Last updated: 2026-04-13