AeroLeads people directory · profile
Sean Horn Email & Phone Number
Senior Engineering Manager, Trust Engineering
at
Atlassian
1 work email found
@tmobile.com
4 phones found area 509, 719, and 877
LinkedIn matched
✓ Verified Jun 2026
4 data sources
Profile completeness 86%
Current company
Role
Senior Engineering Manager, Trust Engineering
Location
United States, United States, United States
Company size
Who is Sean Horn? Overview
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Quick answer
Sean Horn is listed as Senior Engineering Manager, Trust Engineering at Atlassian, a company with 17621 employees, based in United States, United States, United States. AeroLeads shows a work email signal at tmobile.com, phone signal with area code 509, 719, 877, and a matched LinkedIn profile for Sean Horn.
Sean Horn previously worked as Engineering Manager at Hackerrank and Software Development Manager, EC2 Nitro at Amazon Web Services (Aws).
Company email context
Email format at Atlassian
This section adds company-level context without repeating Sean Horn's masked contact details.
{first}{last}@tmobile.com
86% confidence
AeroLeads found 1 current-domain work email signal for Sean Horn. Compare company email patterns before reaching out.
Profile bio
About Sean Horn
Engineering Leader Developing Global Solutions and High-Performing Teams to Deliver Awe-Inspiring Customer Experiences at Industry-Leading ScaleAs an engineering leader at HackerRank, I specialize in developing and implementing strategies that enhance our platform's integrity and scalability. With 13 years in the field of software engineering and 6 years in leadership roles, I bring a wealth of experience and expertise to every project. Leveraging a strong foundation in AWS, my team and I are dedicated to crafting robust solutions for automated provisioning of EC2 servers, ensuring seamless service operations across global availability zones.Drawing from my experience as a lead at AWS, I am committed to building and managing high-performing teams. I focus on fostering a collaborative and innovative environment where engineers can thrive and excel. Our mission is to drive efficiency and innovation through pioneering applications. Our success is built on a diverse tech stack which have been crucial in reducing operational costs and improving customer satisfaction through enhanced system uptime and performance.
Listed skills include Javascript, Jquery, Web Development, Css, and 19 others.
Current workplace
Sean Horn's current company
Company context helps verify the profile and gives searchers a useful next step.
Atlassian
12 roles
Sean Horn work experience
A career timeline built from the work history available for this profile.
Engineering Manager
CurrentAs a leader at HackerRank, I oversee two dynamic teams: the Company Admin Team and the API & ATS Integrations Team within our product engineering department.The Company Admin Team focuses on managing users, teams, settings, roles, and entitlements across our core products. Additionally, this team develops and maintains tooling to support our customer.
Oct 2023 - Present
Software Development Manager, Ec2 Nitro
In my role at AWS, I led the EC2 Provisioning team, responsible for APIs, UIs, and server ingestion. Our team automated the provisioning of EC2 servers globally, ensuring efficient and reliable operations across all AWS availability zones. We managed approximately 300 EC2 instance types, supporting the full server lifecycle. Our work significantly impacted.
Feb 2022 - Oct 2023
Manager, Product & Engineering
As a Manager of Product & Engineering at T-Mobile, I lead a diverse team of contractors and full-time employees in building and maintaining tier 1 customer-facing and internal knowledge bases. Our scope includes UIs, APIs, microservices, vendor-hosted CMS, and cloud infrastructure. Our microservices and APIs handle about 1 billion requests per quarter.
Oct 2019 - Feb 2022
Software Development Manager
Led a team of software engineers leveraging modern technologies to create cloud-based, scalable, resilient, and distributed products for the Corporate Communication, Care, and Sales domains. The team was focused on custom applications to solve vendor and business technology gaps. One solution was a collection of micro services to make data from a vendor.
Jan 2018 - Oct 2019
Sr. Enterprise Architect
Created high and low level secure and efficient system designs for leadership and engineers. Presented to executives to get support and funding for major technology projects. Responsible for on-prem to cloud migration of critical frontline Care and Sales applications. Reviewed code and infrastructure for opportunities. Coached and developed engineers on.
Jan 2017 - Jan 2018
Senior Software Developer
Created and supported tier 1 applications to decrease call handle times for frontline Care. Created an application to search and filter calls into Care by metadata to enable call quality experts more quickly find and listen to calls. Created an application to schedule and organize retail store visits by corporate employees. Coached and developed peer.
Sep 2014 - Jan 2017
Developer Iii
Created and supported tier 1 applications to decrease call handle times for frontline Care. Created an application to search and filter calls into Care by metadata to enable call quality experts more quickly find and listen to calls. Created an application to schedule and organize retail store visits by corporate employees. Coached and developed peer.
Dec 2013 - Sep 2014
Developer
Created a social media Care interaction application to make tracking social media team connections with customers more accurate as well as enable metrics. Built the customer-facing branded support application to enable customer to better find support content to deflect calls into Care. Made UI improvements within the customer-facing and internal knowledge.
Apr 2012 - Dec 2013
Online Community Specialist
The first T-Mobile social media customer support team. Balance of PR and customer satisfaction.
Dec 2011 - Apr 2012
Csr Iii
Customer phone and network tech support. Top 25% nationwide performance in both productivity and customer experience metrics, and won several awards including the coveted Peak Award.
Dec 2008 - Dec 2011
Inventory And Loss Prevention Supervisor
Managed a team of 20 full and part time employees responsible for inventory accuracy, shipping, receiving, merchandising, and loss prevention.
Jul 2004 - Nov 2008
Team & coworkers
Colleagues at Atlassian
Other employees you can reach at atlassian.com. View company contacts for 17621 employees →
NA
Nika Aliyeva
Colleague at AtlassianBaku, Baku Ekonomic Zone, Azerbaijan, Azerbaijan
View →
AH
Alejandra H.
Colleague at AtlassianMelbourne, Victoria, Australia, Australia
View →
FC
Fatima Cristina
Colleague at AtlassianSão José De Ribamar, Maranhão, Brazil, Brazil
View →
AW
Amyclaire Wieser
Colleague at AtlassianFredericksburg, Texas, United States, United States
View →
VD
Vishal Donga
Colleague at AtlassianGujarat, India, India
View →
SB
Shalini Batra
Colleague at AtlassianBengaluru, Karnataka, India, India
View →
BG
Bad Girl
Colleague at AtlassianRiyadh Region, Saudi Arabia
View →
PA
Paulo Azevedo
Colleague at AtlassianSan Francisco Bay Area, United States
View →
TS
Tanvi Singh
Colleague at AtlassianSan Francisco Bay Area, United States
View →
PR
Pat Rubis
Colleague at AtlassianSydney, New South Wales, Australia, Australia
View →
Nika Aliyeva
Colleague at AtlassianBaku, Baku Ekonomic Zone, Azerbaijan, Azerbaijan
View →
AH
Alejandra H.
Colleague at AtlassianMelbourne, Victoria, Australia, Australia
View →
FC
Fatima Cristina
Colleague at AtlassianSão José De Ribamar, Maranhão, Brazil, Brazil
View →
AW
Amyclaire Wieser
Colleague at AtlassianFredericksburg, Texas, United States, United States
View →
VD
Vishal Donga
Colleague at AtlassianGujarat, India, India
View →
SB
Shalini Batra
Colleague at AtlassianBengaluru, Karnataka, India, India
View →
BG
Bad Girl
Colleague at AtlassianRiyadh Region, Saudi Arabia
View →
PA
Paulo Azevedo
Colleague at AtlassianSan Francisco Bay Area, United States
View →
TS
Tanvi Singh
Colleague at AtlassianSan Francisco Bay Area, United States
View →
PR
Pat Rubis
Colleague at AtlassianSydney, New South Wales, Australia, Australia
View →
FAQ
Frequently asked questions about Sean Horn
Quick answers generated from the profile data available on this page.
What company does Sean Horn work for?
Sean Horn works for Atlassian.
What is Sean Horn's role at Atlassian?
Sean Horn is listed as Senior Engineering Manager, Trust Engineering at Atlassian.
What is Sean Horn's email address?
AeroLeads has found 1 work email signal at @tmobile.com for Sean Horn at Atlassian.
What is Sean Horn's phone number?
AeroLeads has found 4 phone signal(s) with area code 509, 719, 877 for Sean Horn at Atlassian.
Where is Sean Horn based?
Sean Horn is based in United States, United States, United States while working with Atlassian.
What companies has Sean Horn worked for?
Sean Horn has worked for Atlassian, Hackerrank, Amazon Web Services (Aws), T-Mobile, and Best Buy.
Who are Sean Horn's colleagues at Atlassian?
Sean Horn's colleagues at Atlassian include Nika Aliyeva, Alejandra H., Fatima Cristina, Amyclaire Wieser, and Vishal Donga.
How can I contact Sean Horn?
You can use AeroLeads to view verified contact signals for Sean Horn at Atlassian, including work email, phone, and LinkedIn data when available.
What skills is Sean Horn known for?
Sean Horn is listed with skills including Javascript, Jquery, Web Development, Css, Microsoft Excel, Php, Customer Experience, and Call Centers.
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