Chief Technology Officer
Current
Jun 2024 - Present
AeroLeads people directory · profile
Stefan Zier Email & Phone Number
CTO at Abstract Security
at
Abstract Security
1 work email found
@sumologic.com
2 phones found area 408 and 650
LinkedIn matched
✓ Verified August 2026
4 data sources
Profile completeness 86%
Current company
Role
CTO at Abstract Security
Location
San Luis Obispo, California, United States
Who is Stefan Zier? Overview
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Quick answer
Stefan Zier is listed as CTO at Abstract Security at Abstract Security, based in San Luis Obispo, California, United States. AeroLeads shows a work email signal at sumologic.com, phone signal with area code 408, 650, and a matched LinkedIn profile for Stefan Zier.
Stefan Zier previously worked as Chief Technology Officer at Abstract Security and Staff Software Engineer at Stripe. Stefan Zier holds Diplom (Fh), Computer Networking from Hochschule Furtwangen.
Company email context
Email format at Abstract Security
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{first}@sumologic.com
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Profile bio
About Stefan Zier
Experienced software architect and developer. Over a decade of experience architecting, implementing and running secure, large scale, complex, distributed applications, both on-premise and in the cloud.Enjoys building large-scale systems from the ground up and thrives in early-stage startup environments. Specialties: Cloud infrastructure, Amazon Web Services, Distributed/scalable applications, Security
Current workplace
Stefan Zier's current company
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12 roles
Stefan Zier work experience
A career timeline built from the work history available for this profile.
Sep 2022 - May 2024
Chief Architect
Grew and matured Sumo Logic's architecture through several acquisitions, significant growth of engineering team and an IPO. Continued to be intimately involved with the key infrastructure Sumo Logic is built upon. Led initiatives to increase velocity of the development organization and ran a process to ensure product development kept longer-term technical considerations in mind.Developed and executed plans to replace several in-house frameworks and tools with open source or commercial alternatives.
May 2014 - Oct 2022
Lead Architect
Aug 2013 - May 2014
Manager, Cloud & Infrastructure
Built out a strong team of developers with a healthy mix of junior and senior engineers. Mentored junior engineers and enabled senior engineers to work efficiently. Delivered quality product despite rapidly changing requirements of the business and scaled Sumo Logic's architecture to hundreds of nodes. Matured Sumo's proprietary cloud platform to be manageable at scale.
Jul 2012 - Aug 2013
Cloud Architect
Joined the two founders (and long-time coworkers, friends) right after Sumo Logic was funded by Greylock. Created our scalable elastic cloud architecture, optimized for performance, security, cost and availability. Over time, adapted, simplified and evolved the architecture to meet changing needs and incorporate new AWS offerings. Wrote lots of Scala code. Advocated NoOps culture: We developers run the software we build, and we build the tools to manage it. We've seen great benefits in software quality and service robustness, since engineers are keenly aware of the operational aspects of their code. Invented dsh, the tool that enables developers at Sumo Logic to deploy, monitor and manage the complex distributed app in AWS. Using dsh, you can go from empty AWS account to fully deployed app with one command and less than 10 minutes. It boots instances with the latest OS version. It deploys all the software, including Hadoop, Cassandra, Zookeeper, HornetQ. Sets up security groups and manages IAM credentials. Creates AMIs. Manages petabytes of EBS and S3 storage. Worries about AWS costs. Ensures distribution over availability zones. Enables you to push updates and perform rolling restarts. Selected and implemented third party subscription billing system, integrated it with the Sumo Logic service. Designed and implemented a library for data partitioning over a cluster of machines.
Jul 2010 - Aug 2012
Software Development Manager
Led team responsible for all appliance based products. Managed contract manufacturing and selected hardware platforms. Designed and implemented application run time environment for all appliance products (Linux and Java), including system management & authentication. Created application deployment and image creation automation that enabled ArcSight to be agile.
Nov 2006 - Jul 2010
Principal Software Engineer
Built and refined core components of ArcSight ESM manager from scratch. Optimized scalability and performance of event processing pipeline by several orders of magnitude.Implemented high performance event transport with encryption and compression. Held responsibility for design, security and implementation of product authentication with integration to RADIUS, Active Directory and LDAP.Built and ran performance lab, led performance team.
Dec 2001 - Nov 2006
Software Developer
Syntion Ag
Developed XMLSoC, a highly efficient, syntax oriented compression algorithm for XML. Created an implementation of the algorithm in Java, and refined it for optimal compression performance. Benchmarked algorithm against other compression algorithms, achieving significantly better compression ratio while maintaining similar decompression performance. The resulting thesis was graded with a 1.0 (the best grade in the German grading system).
Mar 2001 - Aug 2001
Co-Founder, Senior Software Engineer
Gigaton
Co-founded company as one of the first two engineers. Implemented scalable cloud based file storage application (Java/Informix/CORBA).
Jun 1999 - Sep 2000
Senior Software Engineer (Freelance)
Cleverlearn
Part of the company from day one, starting from scratch. Built Java web backend of Cleverlearn Clicktionary on top of an Oracle database.
Mar 1999 - Jul 1999
Software Development Intern
Developed a greeting card service for Amazon.com (Java/Oracle).
Sep 1998 - Feb 1999
2 education records
Stefan Zier education
Diplom (Fh), Computer Networking
Hochschule Furtwangen
Education record
Gymnasium Am Hoptbuehl
FAQ
Frequently asked questions about Stefan Zier
Quick answers generated from the profile data available on this page.
What company does Stefan Zier work for?
Stefan Zier works for Abstract Security.
What is Stefan Zier's role at Abstract Security?
Stefan Zier is listed as CTO at Abstract Security at Abstract Security.
What is Stefan Zier's email address?
AeroLeads has found 1 work email signal at @sumologic.com for Stefan Zier at Abstract Security.
What is Stefan Zier's phone number?
AeroLeads has found 2 phone signal(s) with area code 408, 650 for Stefan Zier at Abstract Security.
Where is Stefan Zier based?
Stefan Zier is based in San Luis Obispo, California, United States while working with Abstract Security.
What companies has Stefan Zier worked for?
Stefan Zier has worked for Abstract Security, Stripe, Sumo Logic, Arcsight, Inc., and Syntion Ag.
How can I contact Stefan Zier?
You can use AeroLeads to view verified contact signals for Stefan Zier at Abstract Security, including work email, phone, and LinkedIn data when available.
What schools did Stefan Zier attend?
Stefan Zier holds Diplom (Fh), Computer Networking from Hochschule Furtwangen.
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