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Mark Henderson Email & Phone Number
Staff Software Engineer
at
Block
1 work email found
@slack-corp.com
LinkedIn matched
✓ Verified May 2026
4 data sources
Profile completeness 100%
Current company
Role
Staff Software Engineer
Location
Denver Metropolitan Area, United States, United States
Company size
Who is Mark Henderson? Overview
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Quick answer
Mark Henderson is listed as Staff Software Engineer at Block, a company with 12741 employees, based in Denver Metropolitan Area, United States, United States. AeroLeads shows a work email signal at slack-corp.com and a matched LinkedIn profile for Mark Henderson.
Mark Henderson previously worked as Staff Software Engineer at Slack and Staff Software Engineer at Twitter. Mark Henderson holds Bs - Computer Science, 4.0 from Northern Kentucky University.
Company email context
Email format at Block
This section adds company-level context without repeating Mark Henderson's masked contact details.
{first_initial}{last}@slack-corp.com
86% confidence
AeroLeads found 1 current-domain work email signal for Mark Henderson. Compare company email patterns before reaching out.
Profile bio
About Mark Henderson
Mark Henderson is a Staff Software Engineer at Block. He possess expertise in scalability, distributed systems, oracle, java, nosql and 3 more skills. Colleagues describe him as "Mark focuses on delivering value. He would rather build something and see how it is used than to spend time trying to design the perfect solution (which may never get built). He has the inner drive and motivation to find a problem to solve without needing direction. Mark communicates effectively, and is a pleasure to work with." and "Mark's easy-going and positive attitude made collaborating with him an absolute pleasure. His ability to navigate ambiguous, complex problems resulted in high quality and scalable software. His work had an immediate impact on Amazon's high volume supply chain processes."
Listed skills include Scalability, Distributed Systems, Oracle, Java, and 4 others.
Current workplace
Mark Henderson's current company
Company context helps verify the profile and gives searchers a useful next step.
Block
8 roles · 16 years
Mark Henderson work experience
A career timeline built from the work history available for this profile.
Staff Software Engineer
Current
Apr 2022 - Present
2019 - 2022
~3 yrs
2018 - 2019
~1 yr
2013 - 2017
~4 yrs
Software Development Engineer Intern
May 2012 - Aug 2012
Network Engineering Intern
2011 - 2012
~1 yr
Applications Developer Intern
2010 - 2011
~1 yr
1 education record
Mark Henderson education
FAQ
Frequently asked questions about Mark Henderson
Quick answers generated from the profile data available on this page.
What company does Mark Henderson work for?
Mark Henderson works for Block.
What is Mark Henderson's role at Block?
Mark Henderson is listed as Staff Software Engineer at Block.
What is Mark Henderson's email address?
AeroLeads has found 1 work email signal at @slack-corp.com for Mark Henderson at Block.
Where is Mark Henderson based?
Mark Henderson is based in Denver Metropolitan Area, United States, United States while working with Block.
What companies has Mark Henderson worked for?
Mark Henderson has worked for Block, Slack, Twitter, Google, and Amazon.
How can I contact Mark Henderson?
You can use AeroLeads to view verified contact signals for Mark Henderson at Block, including work email, phone, and LinkedIn data when available.
What schools did Mark Henderson attend?
Mark Henderson holds Bs - Computer Science, 4.0 from Northern Kentucky University.
What skills is Mark Henderson known for?
Mark Henderson is listed with skills including Scalability, Distributed Systems, Oracle, Java, Nosql, Ruby, Shell Scripting, and Application Development.
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