Matthew Gladney is a cloud security engineering leader with 11+ years of experience designing identity-first security architectures that enable developer autonomy across massive estates. He has led strategy and platform engineering for environments scaling to 25,000+ AWS accounts and 13M+ cloud assets, and helped build CIEM and CSPM systems now proven in enterprise and vendor products. A two-time acquisition survivor, he brings patented innovations in cloud data and access analysis and hands-on experience shipping full-stack security platforms. Matthew is an active open-source contributor (notably to cloud-custodian) and has built large-scale data architectures such as AssetDB and internal token and IAM distribution services. Based in Washington, DC, he blends security theory with practical engineering—often keeping a hand on the keyboard while guiding high-level strategy. He also organizes community events (fwd:CloudSec) and occasionally blogs and publishes code exploring the intersection of security, data, and developer experience.
11 years of coding experience
12 years of employment as a software developer
BA, Economics and History, BA, Economics and History at The George Washington University
Certificate, Web Technologies, Certificate, Web Technologies at Harvard University
Rules engine for cloud security, cost optimization, and governance, DSL in yaml for policies to query, filter, and take actions on resources
Role in this project:
Backend & DevOps Engineer
Contributions:1 review, 5 commits, 8 PRs in 1 month
Contributions summary:Matthew primarily contributed to the `cloud-custodian/cloud-custodian` project by implementing and testing new features, specifically related to AWS SageMaker models, and extending existing functionality with tagging and deletion actions. Their work also included refactoring and integrating existing actions and filters for reusability across various SageMaker resources. Additionally, the user addressed and fixed issues related to the SNS modify-policy action, including incorporating account ID and region variable interpolation. They also modified the project's infrastructure for cloud security and resource governance.
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