Isaiah Dasen
The Application Security Guy
I help enterprises solve their hardest security problems — application security, bot mitigation, API protection, DDoS, and identity. Currently in Thales's Imperva group focused on WAF, bots, API security, and AI-driven threat detection, with a side passion for One Piece cards.
About Me
Cybersecurity leader with 15+ years architecting solutions and leading teams across networking, network security, SaaS security, and zero trust. I build relationships, find value, and break down complex topics into deliverables that customers can actually act on.
My career spans the full application security stack — from deep network-level work at F5 and identity protocols at Okta, to bot mitigation and API security at DataDome, to where I am now at Thales running technical pre-sales for the Imperva AppSec portfolio. WAF, bots, APIs, DDoS, AI — that's my world.
When I'm not in a demo environment or on a whiteboard, I collect One Piece cards, which is why this site doubles as a small card shop.
Skills & Expertise
Application Security
- WAF & Bot Management
- API Security
- DDoS Protection
- NGFW & Proxy
- AI Threat Detection
- OWASP Top 10
Identity & Access
- IAM & SSO
- MFA & Adaptive Auth
- SAML / OAuth / OIDC
- Active Directory / LDAP
- Zero Trust
- Device Trust
Dev & Automation
- JavaScript / Python
- Bash / C#
- REST APIs
- Ansible / Terraform
- Docker / Kubernetes
- Git / JIRA
Cloud & Infrastructure
- AWS / Azure / GCP
- CDN (Fastly, Cloudflare)
- F5 BIG-IP / nginx
- Containers & Kubernetes
- Network Architecture
- On-prem & Hybrid
Experience
Apr 2025 — Present
Senior Solutions Engineer
Thales — Imperva Group
Technical pre-sales for Imperva's application security portfolio covering WAF, bot management, API security, DDoS, and AI-driven threat protection.
- Lead POCs and technical evaluations for Imperva WAF, Bot Management, API Security, and DDoS products
- Architect AppSec solutions across CDN, cloud, and on-prem environments for enterprise accounts
- Cover the broader Thales data security portfolio including CipherTrust and Luna HSM for encryption and key management
May 2024 — Apr 2025
Manager, Solutions & Services
DataDome
Led Solutions & Services teams for the Americas, driving NRR from 104% to 123% with team ARR above $23M.
- Managed cross-functional solutions and services teams, growing regional headcount by 20%
- Architected bot management and DDoS integrations across CDNs and on-prem stacks (Fastly, AWS, GCP, Azure, F5, nginx, Cloudflare)
- Decreased support TTR by 60% through process optimization and targeted coaching
- Delivered internal training on HTTP/s, APIs, bots, WAF, CDN integrations, and cloud architecture
Jun 2023 — May 2024
Solutions Engineer III
F5
Covered SLED accounts in UT, CO, and AZ, owning the technical pre-sales relationship across F5 hardware, SaaS, and nginx.
- Architected solutions spanning F5, AWS, Azure, GCP, Kubernetes, nginx, and security products for SLED customers
- Presented at major conferences on F5, nginx, and security industry topics
- Automated deployments and integrations using JavaScript, Python, Ansible, Terraform, and TCL
Apr 2021 — Jun 2023
Senior Technical Support Engineer
Okta
Team lead for technical support, driving customer success through defined KPIs across enterprise Okta and Auth0 integrations.
- Specialized in MFA, adaptive authentication, device trust, and directory integrations (AD, LDAP)
- Configured and troubleshot MDM integrations with Workspace One, Microsoft Intune, and JAMF Pro
- Hands-on with OTP/TOTP, push, YubiKey, U2F, WebAuthn/FIDO2, RADIUS, and Windows Hello
Jun 2014 — Apr 2021
Enterprise Account Engineer
F5
Promoted from Network Support Engineer II; managed Fortune 50 technical accounts with escalation support and solution architecture.
- Deep expertise in BIG-IP modules: LTM, ASM, AFM, GTM/DNS, and APM
- Integrated SAML, OAuth, AD/LDAP, Kerberos, certificate-based, RADIUS, and RSA/SecurID authentication
- Member of the Security Incident and Response Team for threat analysis and mitigation
Oct 2011 — Jun 2014
Technical Support Analyst II
Logan Health
Enterprise IT support across network infrastructure, systems, and clinical environments.
Jun 2008 — Oct 2011
Network Engineer & Web Developer
MontanaSky Networks ISP
Network engineering and web development for a regional ISP.
Certifications
- Computer Hacking Forensic Investigator (CHFI)
- Certified Ethical Hacker (CEH)
- Microsoft Azure AZ-900
- F5 Certified Technology Specialist — LTM, ASM
- CompTIA Linux+, Security+, Network+, A+, Project+
Education
Master of Science, Cybersecurity
Western Governors University
B.S. Information Technology
Western Governors University
Featured Cards
A selection from the shop — One Piece TCG singles and sets.
Get in Touch
Interested in application security, bot mitigation, API protection, or just want to talk cybersecurity? I'm always open to interesting conversations.