Open to Work
Sebastian Stein
Sales Engineering Leader
Stuttgart, Germany
About
I help security companies turn complex technology into closed enterprise deals - by building and leading the teams that make it happen.
15 years in cybersecurity across DDoS protection, WAF, Zero Trust, and Cloud Security. 8 of them at Zscaler, where I scaled Sales Engineering teams through hypergrowth - from 700 to 8,000+ employees. I've built SE organizations from scratch, defined regional operating models, led Major Account technical sales for Germany's largest enterprises, and developed individual contributors into leaders.
What I bring: Deep technical credibility paired with high emotional intelligence. Proven playbooks for scaling SE teams in complex enterprise sales. A culture-first approach where people grow, stay, and want to win together.
Track Record
- 2x President's Club - Top performer recognition
- SEM of the Quarter (2025) - Leadership excellence
- SE of H1 (2020) & SE of the Quarter (2019) - Individual contributor awards
- 189% (FY20), 120%+ (FY24), 130%+ (FY25) - Consistent quota overachievement
- Built and led SE teams supporting 13 AEs + 2 Regional Directors across Germany's largest enterprise customers
- Drove Zscaler's fastest seven-figure technical win as individual contributor
- Rated "Outstanding Impact" for high-EQ leadership under pressure
Expertise
Career Journey
15 years in cybersecurity across two defining chapters: 7 years building presales at a growing security vendor, followed by 8 years scaling SE teams through Zscaler's hypergrowth from 700 to 8,000+ employees.
Evolved scope: Germany Enterprise → Central Europe → Germany Major Accounts. Built SE organization end-to-end, defined regional operating model and SE playbook. Led teams supporting DAX and Global 2000 customers.
Advanced from Enterprise SE to Major Account SE in under 3 years. Drove fastest seven-figure technical win. Created POV framework adopted as regional standard.
Built company's first Presales & Consulting organization from the ground up. Established technical sales capabilities, led engagements with DAX-listed enterprises.
Started in technical project delivery, transitioned into presales leadership as the company scaled.
Let's Connect
After a planned sabbatical focused on family, I'm actively seeking my next SE leadership role where culture drives performance and building something lasting matters.
Connect on LinkedIn