Mat S. — CTO

I am a Principal Software Engineering Manager at Microsoft, leading the web client infrastructure team for Microsoft Teams. My focus is on driving architectural innovation, delivering high-performance solutions, and empowering my team to achieve their full potential. In my current role, I oversee design, planning, and execution of critical projects, including the New Microsoft Teams client, which redefined speed and reliability for millions of users. I’ve spearheaded initiatives like Teams Free and contributed to the current investments of Copilot in Teams, enhancing functionality and user engagement across platforms. Beyond technical leadership, I prioritize mentorship and team growth, fostering a culture of collaboration and excellence. My expertise spans TypeScript, C#, software architecture, and large-scale web systems, enabling me to bridge technical depth with strategic vision. Previously, I played a key role in improving developer experiences for third-party integrations in Teams and have a strong foundation in full-stack development from prior roles at WideOrbit, Amazon, and Arcweb. I bring strategic leadership, technical innovation, and a passion for building scalable, resilient systems that power collaboration for millions worldwide.

Stackforce AI infers this person is a SaaS-focused software engineering leader with expertise in team management and architectural innovation.

Location: San Francisco, California, United States

Experience: 16 yrs 1 mo

Skills

Software Architecture
Project Management
Web Development
Software Development
Software Design
Mobile Development
Cloud Computing
System Administration

Career Highlights

Led architectural innovation for Microsoft Teams.
Spearheaded initiatives enhancing user engagement.
Prioritized mentorship and team growth.

Work Experience

Microsoft

Principal Software Engineering Manager (4 yrs)

Principal Software Engineer (2 yrs 1 mo)

Senior Software Engineer (2 yrs 11 mos)

WideOrbit

Software Engineer (2 yrs 5 mos)

Amazon

Software Development Engineer (1 yr 2 mos)

Arcweb

Software Development Engineer (8 mos)

Amazon Web Services

Software Development Engineer Intern (6 mos)

Amazon.com

Software Development Engineer Intern (5 mos)

The Archer Group | Now Bounteous

System Administrator Intern (5 mos)

iPhone Application Developer Intern (3 mos)

Thomson Scientific

Junior EndNote Programmer (6 mos)

Drexel University

System Administrator (9 mos)

HostMySite.com

Technical Support Representative (2 mos)

Education

Master's Degree at Drexel University

Bachelor's Degree at Drexel University

Mat S.

CTO

San Francisco, California, United States16 yrs 1 mo experience

Most Likely To SwitchHighly Stable

Key Highlights

Led architectural innovation for Microsoft Teams.
Spearheaded initiatives enhancing user engagement.
Prioritized mentorship and team growth.

Stackforce AI infers this person is a SaaS-focused software engineering leader with expertise in team management and architectural innovation.

Contact

Skills

Core Skills

Software ArchitectureProject ManagementWeb DevelopmentSoftware DevelopmentSoftware DesignMobile DevelopmentCloud ComputingSystem Administration

Other Skills

.NET Core.NET FrameworkASP.NET Web APIAdobe ColdFusionAlgorithmsAmazon Web Services (AWS)AndroidAndroid DevelopmentAzure Blob StorageAzure Cosmos DBAzure DevOps ServicesAzure Service FabricBackup & RestoreCC#

About

Experience

Microsoft

3 roles

Principal Software Engineering Manager

Promoted

Mar 2022 – Present · 4 yrs

I drive innovation and performance improvements as a Principal Software Engineering Manager at Microsoft.
Drove the development of the new Teams client, enhancing user engagement and feature richness.
Implemented advanced web security mechanisms, balancing flexibility and robustness.
Led the migration of our primary experience to teams.cloud.microsoft, optimizing accessibility and performance.

People ManagementCareer DevelopmentSoftware ArchitectureProject Management

Principal Software Engineer

Promoted

Feb 2020 – Mar 2022 · 2 yrs 1 mo

As a Principal Software Engineer, I played a pivotal role in shaping the web client infrastructure for Microsoft Teams.
Led the web client infrastructure team in building the New Microsoft Teams client, ensuring seamless integration with browser technologies.
Spearheaded the design and implementation of the Teams for Home framework, broadening the product's reach.
Contributed to the launch of the Teams 2.0 experience, significantly enhancing user engagement and functionality.

Dependency ManagementNetwork ResilienceIntegration TestingTypeScriptSoftware ArchitectureUnit Testing+4

Senior Software Engineer

Mar 2017 – Feb 2020 · 2 yrs 11 mos

I played a pivotal role in enhancing the developer experience for third-party app developers for Microsoft Teams.
Built tools that facilitated seamless integration with Microsoft Teams, collaborating with various teams and partners.
Developed a library of themed controls to streamline app development processes.
Integrated the Office Store app submission pipeline, significantly improving submission efficiency for developers.

Azure Service FabricReact.jsAzure DevOps ServicesLiveSiteIntegration TestingAzure Blob Storage+10

Wideorbit

Software Engineer

Oct 2014 – Mar 2017 · 2 yrs 5 mos · Greater Seattle Area · On-site

I was instrumental in building the WO Programmatic platform, which transformed the advertising buying process.
Designed and developed back-end services that drive the buy-side experience for advertisers and agencies.
Deployed a monitoring solution to maintain internal environments, ensuring system reliability.
Established internal processes like code reviews to enhance team collaboration and productivity.

Continuous Delivery (CD)Integration TestingContinuous Integration (CI)CactiUnit TestingRESTful WebServices+6

Amazon

Software Development Engineer

Aug 2013 – Oct 2014 · 1 yr 2 mos · Greater Seattle Area · On-site

I played a pivotal role in enhancing the user interface for Amazon's Android devices through innovative middleware solutions.
Created and maintained essential Android widgets utilized across various Amazon applications.
Streamlined the workflow for design integration, improving team efficiency.
Spearheaded the integration of a major visual refresh for tablet devices, elevating the user experience.

Android DevelopmentLiveSiteIntegration TestingUnit TestingUX ComponentsMobile Development

Arcweb

Software Development Engineer

Oct 2012 – Jun 2013 · 8 mos · Greater Philadelphia Area · On-site

I successfully led iOS application development and back-end service initiatives, enhancing client engagement and project outcomes.
Directed the creation of an unreleased banking application prototype, ensuring it met client specifications.
Managed the v2 and v3 development of QTrak, improving logistics tracking capabilities.
Developed skills in project estimation, client communication, and cross-functional collaboration.

Integration TestingUnit TestingWeb DevelopmentiOS DevelopmentMobile Development

Amazon web services

Software Development Engineer Intern

Mar 2012 – Sep 2012 · 6 mos · Greater Seattle Area · On-site

I had the opportunity to work in the Infrastructure Automation department at Amazon Web Services, where I focused on enhancing cloud machine operations.
Developed a tool that automates firmware upgrades during the start-up process of cloud machines.
Collaborated with a skilled team responsible for managing software for key Amazon cloud services.
Gained valuable experience in cloud computing and automation, sharpening my software development skills.

Cloud DevelopmentAmazon Web Services (AWS)Cloud Computing

Amazon.com

Software Development Engineer Intern

Oct 2010 – Mar 2011 · 5 mos · Greater Seattle Area · On-site

I played a pivotal role in optimizing the checkout process at Amazon, focusing on backend infrastructure and API development.
Contributed to the aggregation of workflows, ensuring seamless customer order progression.
Created a graphical tool for function call visualization, enhancing team collaboration and understanding.
Gained valuable experience in backend technologies, API integration, and data security practices.

Dashboard BuildingFunctional Programming

The archer group | now bounteous

2 roles

System Administrator Intern

Mar 2010 – Aug 2010 · 5 mos · Greater Philadelphia Area · On-site

I contributed to the success of The Archer Group by providing essential systems administration support.
Developed a Debian-based image to enhance security for web browsing and network configuration.
Administered both Unix and Windows workstations and servers, ensuring optimal performance.
Collaborated with design and development teams to streamline operations and improve workflows.

System AdministrationLinux System AdministrationUnix AdministrationDebianWindows System AdministrationServer Administration+1

iPhone Application Developer Intern

Jun 2009 – Sep 2009 · 3 mos · Greater Philadelphia Area · On-site

I played a role in enhancing the GiftPlanner iPhone application through bug fixes and feature implementation.
Worked closely with Google Maps and Facebook APIs to enrich the app's functionality.
Ensured a seamless user experience by identifying and resolving application bugs.
Engaged in a collaborative startup environment at The Archer Group, promoting innovation and efficiency.

Thomson scientific

Junior EndNote Programmer

Sep 2009 – Mar 2010 · 6 mos · Greater Philadelphia Area · On-site

I played a role in developing innovative software solutions at Thomson Scientific.
Built a cross-platform analysis plugin to improve the functionality of EndNote's Find Full Text feature.
Developed a prototype for a handheld EndNote Client, enhancing user accessibility and experience.

Drexel university

System Administrator

Sep 2008 – Jun 2009 · 9 mos · Greater Philadelphia Area · On-site

I successfully contributed to the operational efficiency of the Drexel Computer Science department through various initiatives.
Developed a periodical data backup and archival system to enhance data security.
Designed and implemented new kiosk machines to improve user interaction and accessibility.
Oversaw the management of systems, ensuring continuous support for departmental activities.

Hostmysite.com

Technical Support Representative

Jun 2008 – Aug 2008 · 2 mos · Greater Philadelphia Area · On-site

I excelled in providing technical support at HostMySite.com, ensuring customers received timely assistance.
Developed strong documentation skills by creating comprehensive tickets for client issues.
Enhanced problem-solving abilities by troubleshooting both client-side and server-side issues.
Fostered teamwork by effectively escalating complex issues to senior support staff for resolution.