Sebastian Geißel

Critic
DISC Type : C

(Cloud) Security & Automation Architecture (Senior IT-Engineer) at ALDI DX

Düsseldorf, North Rhine-Westphalia, Germany

Overview

Sebastian is a Senior IT Engineer at ALDI DX with over a decade of experience in security architecture. He specializes in designing and automating secure solutions for multi-cloud environments, leveraging his expertise in Infrastructure as Code, Terraform, and Python. He holds a Bachelor of Science and is a Certified AlgoSec Security Expert.

He is passionate about continuous learning and professional development, frequently attending industry events like Cisco Live. He enjoys deep technical sessions and hands-on labs, but also values connecting with the community and believes the best insights happen in conversations between talks.

Unique fact: Sebastian is a strong advocate for practical, hands-on learning, stating that "Hands-on time is the best time. "

Personality Overview

Negotiator

Objective Thinker

Information Seeker

Unless the value is proven by data, they are unlikely to value fancy features.  They choose to analyze logically and value facts to emotions. They like to do things independently and don’t look for support from others.

Topics They Care About

Cloud Security Automation
His current role focuses on designing secure, scalable, and automated security solutions for on-premises and multi-cloud environments using IaC tools like Terraform and Python.
Network Security Architecture
His recent activity shows a deep interest in modern network defense, focusing on Next-Gen Firewalls (NGFW), Secure Access Service Edge (SASE), and AI-ready secure routers.
DevSecOps Practices
He has a strong background in integrating security within fast-paced DevOps environments, utilizing CI/CD, Gitlab, and agile project management methodologies like Scrum.

Media Appearances

Sebastian has no verified media appearances

Work History

5-2022
(Cloud) Security & Automation Architecture (Senior IT-Engineer) at ALDI DX
5-2016 - 4-2022
(Cloud) Security Architecture (IT-Security Engineer) at Gothaer
7-2015 - 4-2016
IT Security Consultant at SECULONIA GmbH
1-2015 - 6-2015
Network Security Services Engineer at Metro Systems
12-2009 - 12-2014
System Engineer at Computacenter

Education

2016 - 2018
Bacher of Science from FOM University of Applied Sciences for Economics and Management
2005 - 2008
staatl. geprüfter Informationstechnischer Assistent from b.i.b. International College

More Information

Social Presence :

Prographics :

Exp : 17 Location : Düsseldorf, North Rhine-Westphalia, Germany Job Level : N/A Designation : (Cloud) Security & Automation Architecture (Senior IT-Engineer) at ALDI DX
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Insights For Selling To Sebastian

During A Call Or A Meeting

DO's

  • If you can, show them industry reports or analyst comments instead of sharing anecdotal stories
  • Use phrases like ‘expect X% improvement’, ‘data clearly shows’ etc.
  • Tell them what ROI they can expect

DONT's

  • Don’t try too hard to build a relationship with them
  • Do not use very emotional or colorful language
  • Don't give superficial answers, they are easily rattled by them

When Cold Calling

When Writing An Email

While Negotiating & Closing

    The secret to closing fast with Sebastian is

  • Proven ROI, pricing and objective proof points are the factors that sway their decision.
  • Will you ever get a clear answer from Sebastian

  • They are comfortable saying no if they are convinced that it is the correct decision.

Insights For Deal Planning

    How fast (or slow) will Sebastian move?

  • Their decision-making is neither very fast nor very slow, they are somewhere in between.
  • Can Sebastian take some risk or not?

  • They can take risks if their analysis shows that it would be worth it.

You And Sebastian

Personality Compatibility


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