Matthew Wallace

As a Senior Software Engineer at Microsoft for 11 years, I honed my expertise in building and safely deploying robust solutions to a large and complex service. I've worked across the cloud, on-prem and hybrid offerings of SharePoint. My experience includes work with federated auth, NTLM, Kerberos, OAuth/OIDC, AD/Azure AD and other technologies.

Microsoft – Full-time · 11 yrs 2 mos

Senior Software Engineer

Sep 2021 - Sep 2024 · 3 yrs 1 mo

Austin, Texas Metropolitan Area · Remote

- Developed TLS token binding for SharePoint Online authentication cookies, implementing RFC 8705, to enhance security and reduce unauthorized access. 
- Developed Client Proof of Possession for SharePoint Online tokens, implementing RFC 7800, to enhance token security and integrity. 
- Engineered a custom token type for SharePoint Online search crawler, enabling secure data access on more servers and increasing scalability. 
- Managed and maintained the SharePoint Online dependency on Active Directory, reducing service alerts from 25 known repetitive escalations to 2 novel escalations per month and improving reliability to four 9's.- Developed TLS token binding for SharePoint Online authentication cookies, implementing RFC 8705, to enhance security and reduce unauthorized access. - Developed Client Proof of Possession for SharePoint Online tokens, implementing RFC 7800, to enhance token security and integrity. - Engineered a custom token type for SharePoint Online search crawler, enabling secure data access on more servers and increasing scalability. - Managed and maintained the SharePoint Online dependency on Active Directory, reducing service alerts from 25 known repetitive escalations to 2 novel escalations per month and improving reliability to four 9's.

Software Development Engineer

Dec 2014 - Sep 2021 · 6 yrs 10 mos 

Redmond, Washington · On-site

- Led the development of SharePoint 2016 authentication, backporting 49 features from SharePoint Online, enabling on-time release of a robust feature set despite a short schedule. 
- Deployed and administered four shared test environments representing most customer configurations, allowing other teams to validate interoperability with authentication scenarios. 
- Managed over 20 authentication scenarios combined with 4 authentication modes, including federated and certificate authentication, resolving regressions and backport bugs, ensuring a seamless product and customer satisfaction. 
- Developed SharePoint Online conditional access for unmanaged devices, securing tenant content from local download for 1K initial tenants, now expanded globally. US Patent: #US11625469B2. 
- Developed a modern solution for SharePoint Online partner administration scenario to allow cross-tenant authentication across updated security boundaries utilizing Entra Federated Directory.- Led the development of SharePoint 2016 authentication, backporting 49 features from SharePoint Online, enabling on-time release of a robust feature set despite a short schedule. - Deployed and administered four shared test environments representing most customer configurations, allowing other teams to validate interoperability with authentication scenarios. - Managed over 20 authentication scenarios combined with 4 authentication modes, including federated and certificate authentication, resolving regressions and backport bugs, ensuring a seamless product and customer satisfaction. - Developed SharePoint Online conditional access for unmanaged devices, securing tenant content from local download for 1K initial tenants, now expanded globally. US Patent: #US11625469B2. - Developed a modern solution for SharePoint Online partner administration scenario to allow cross-tenant authentication across updated security boundaries utilizing Entra Federated Directory.

Software Development Engineer In Test

Aug 2013 - Dec 2014 · 1 yr 5 mos 

Redmond, Washington, United States · On-site

- Managed automated tests for a 12-person team, identifying and rehabilitating defunct tests that accounted for over 25% of the inventory, boosting team's check-in confidence. 
- Developed and executed a rigorous test plan to ensure a smooth migration of customer identities from SharePoint BPOS and Active Directory to SharePoint Online and Azure AD.- Managed automated tests for a 12-person team, identifying and rehabilitating defunct tests that accounted for over 25% of the inventory, boosting team's check-in confidence. - Developed and executed a rigorous test plan to ensure a smooth migration of customer identities from SharePoint BPOS and Active Directory to SharePoint Online and Azure AD.

Texas State University-San Marcos

B.S., Computer Science & Applied Mathematics, with Music minor 2010 - 2013