Jonathan Seawright
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Jonathan Seawright Email & Phone Number

Principal Engineer w/ SRE & Security experience at Critical Start
Location: Dallas, Texas, United States 11 work roles 2 schools
1 work email found @criticalstart.com 1 phone found area 817 LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 1 phone

Work email j****@criticalstart.com
Direct phone (817) ***-****
LinkedIn Profile matched
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Current company
Role
Principal Engineer w/ SRE & Security experience
Location
Dallas, Texas, United States
Company size

Who is Jonathan Seawright? Overview

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Quick answer

Jonathan Seawright is listed as Principal Engineer w/ SRE & Security experience at Critical Start, a company with 51 employees, based in Dallas, Texas, United States. AeroLeads shows a work email signal at criticalstart.com, phone signal with area code 817, and a matched LinkedIn profile for Jonathan Seawright.

Jonathan Seawright previously worked as Principal Engineer at Critical Start and Senior Python Developer at Critical Start. Jonathan Seawright holds B.S., Electrical Engineering from The University Of Texas At Dallas.

Company email context

Email format at Critical Start

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{first}.{last}@criticalstart.com
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AeroLeads found 1 current-domain work email signal for Jonathan Seawright. Compare company email patterns before reaching out.

Profile bio

About Jonathan Seawright

I'm a well rounded, "whole brain" software engineer. My primary interests are with platform reliability, security, and high availability. I am tenacious and love thinking outside the box. I've been both an IC and a manager (though lately I enjoy being technical). I love mentoring and helping share what I know. At a glance: - Strong C++/Python/Bash skills with extensive background in CI/CD and unit testing - Experience building distributed systems with resilient design and failure modes - SRE practitioner with strong development skills - Security focused, with actionable experience spanning all areas of DevSecOps - Deep experience in both cloud and on-prem networking with published research in software defined networking - Extensive experience with ansible, libvirt, KVM, and containers (Kubernetes/Mesos/Docker/LXD) - HSM (hardware security module) and cryptography experience with familiarity in Financial cryptography standards, POS key injection and key management schemes. - 12 years professional programming experience (14+ years non professional) For fun, I am an avid photographer and husband.

Listed skills include Git, Amazon Web Services, Linux, Test Automation, and 37 others.

Current workplace

Jonathan Seawright's current company

Company context helps verify the profile and gives searchers a useful next step.

Critical Start
Critical Start
Principal Engineer w/ SRE & Security experience
Plano, TX
Employees
51
AeroLeads page
11 roles

Jonathan Seawright work experience

A career timeline built from the work history available for this profile.

Principal Engineer

Current

Plano, Texas, US

Apr 2024 - Present

Senior Python Developer

Plano, Texas, US

CRITICALSTART is leading the way in Managed Detection and Response (MDR) services. Our Trusted Behavior Registry reviews every alert to determine if it was generated by known-good behavior versus unknown behaviors that need to be investigated by our analysts. This allows us to resolve every alert and stop accepting risk - leveraging our transparent.

Sep 2020 - Apr 2024

Site Reliability Engineering Manager

Campbell, CA, US

(Joined via Comprehend Systems acquisition)Hire and train a multi-national team of SREs to expand, automate, and maintain the Life Sciences Analytics Cloud (LSAC) infrastructure, as well as serving as a contributor to the team.Wore many hats, spanning everything from network engineering (Cisco), Database SRE/DBA (Postgres), physical infra/datacenter.

Aug 2019 - Sep 2020

Site Reliability Engineer

Comprehend Systems

Responsible for automation, deployment, and operations of a multi-tenant SaaS data platform for clinical trial research. Deeply involved in all aspects, including Infra as Code (ansible), network / hardware configuration, as well as container orchestration (Mesos / Kubernetes) with Helm. - Manage & deploy 60+ PostgreSQL database clusters using Ansible.

Jun 2018 - Aug 2019

Technical Lead

Bulverde, Texas, US

Develop key management applications for cryptographic HSMs and manage a small team as technical business unit manager. Oversee application and systems development, conduct code reviews, define requirements, and code as an engineer in C++ / C / Python. - Built and designed tooling for deploying virtualized, multi-node product deployments in HA.

Jun 2017 - May 2018

Software Engineer

Bulverde, Texas, US

Created, tested, and integrated software solutions in C++ for highly available, redundant, and hardened cryptography platforms (HSMs) utilized by major global financial institutions and brands. Maintained message handling / load balancing code, sockets, and debugged issues for concurrency and real-time data replication.- Overhauled virtualization.

Jun 2014 - Jun 2017

Photographer

Seawright Photography

Using creative and technical expertise to capture live events and personal attributes of customers through video and still images. Creating advertising, branding and website using smugmug content management system with HTML and CSS. Demonstrating the ability to manage time and resources to be responsive to customer needs while succeeding at school.

Mar 2010 - Jun 2016

Undergraduate Student Researcher

Richardson, Texas, US

- Worked as an undergraduate researcher at the UT Dallas Open Networking Advanced Research Lab- Played a major role in developing a linux-based Software Defined Networking (SDN) testbed and utilizing the testbed for research into 4G LTE technologies. Developed scripts and configured testbed machines to emulate existing devices in the existing 4G LTE.

Aug 2013 - May 2014

Software Engineering Coop

New York, NY, US

Maintained legacy codebases and developed, tested, and integrated new custom software for embedded DSP platforms. Verified and oversaw weekly backups of lab computers, assisting in code development for colleagues' current initiatives. Used C, Java, and bash in a linux development environment. -> Researched and developed an elegant solution for a critical.

Jun 2012 - Aug 2013

Elevate Curriculum: Animation Assistant

Grapevine, Texas, US

Responsible to the lead animator for creation and rendering of animated content using Adobe Creative Suite, specifically Photoshop, After Effects, and Adobe ExtendScript. Required extensive creativity, problem solving and time management.

Apr 2010 - Jul 2010

Production Assistant

Grapevine, Texas, US

Design and integrate faster workflows for document creation and customization in InDesign.Develop initial typesetting, layout, and perform initial proofing of Adobe InDesign documents.

Jan 2008 - Apr 2010
Team & coworkers

Colleagues at Critical Start

Other employees you can reach at criticalstart.com. View company contacts for 51 employees →

2 education records

Jonathan Seawright education

B.S., Electrical Engineering

The University Of Texas At Dallas

Education record

Grapevine High School
FAQ

Frequently asked questions about Jonathan Seawright

Quick answers generated from the profile data available on this page.

What company does Jonathan Seawright work for?

Jonathan Seawright works for Critical Start.

What is Jonathan Seawright's role at Critical Start?

Jonathan Seawright is listed as Principal Engineer w/ SRE & Security experience at Critical Start.

What is Jonathan Seawright's email address?

AeroLeads has found 1 work email signal at @criticalstart.com for Jonathan Seawright at Critical Start.

What is Jonathan Seawright's phone number?

AeroLeads has found 1 phone signal(s) with area code 817 for Jonathan Seawright at Critical Start.

Where is Jonathan Seawright based?

Jonathan Seawright is based in Dallas, Texas, United States while working with Critical Start.

What companies has Jonathan Seawright worked for?

Jonathan Seawright has worked for Critical Start, Saama, Comprehend Systems, Futurex, and Seawright Photography.

Who are Jonathan Seawright's colleagues at Critical Start?

Jonathan Seawright's colleagues at Critical Start include Johnny Monteleone, Taylor Wheeler, Louis Ritchie, Kate Darby, and Matthew Harris.

How can I contact Jonathan Seawright?

You can use AeroLeads to view verified contact signals for Jonathan Seawright at Critical Start, including work email, phone, and LinkedIn data when available.

What schools did Jonathan Seawright attend?

Jonathan Seawright holds B.S., Electrical Engineering from The University Of Texas At Dallas.

What skills is Jonathan Seawright known for?

Jonathan Seawright is listed with skills including Git, Amazon Web Services, Linux, Test Automation, Algorithms, C, Test Automation Framework, and Dns.

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