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Katie Strader

PROFILE

Katie Strader

Worked on SpecterOps/BloodHound and SharpHoundCommon, delivering backend features and reliability improvements across eight months. Built and enhanced access control, authentication, and feature flag systems, focusing on security and maintainability. Used C#, Go, and SQL to implement robust error handling, unit testing, and containerized deployment pipelines. Improved LDAP and NTLM authentication flows, introduced environment-targeted access controls, and managed versioned releases for Docker images. Refactored code for better logging and data filtering, expanded test coverage for edge cases, and streamlined dependency management. These efforts reduced operational risk, improved monitoring, and enabled safer, more controlled feature rollouts in production environments.

Overall Statistics

Feature vs Bugs

63%Features

Repository Contributions

19Total
Bugs
6
Commits
19
Features
10
Lines of code
3,988
Activity Months8

Work History

March 2026

3 Commits • 1 Features

Mar 1, 2026

March 2026: Delivered OG Collector Platform integration and branding consolidation for SpecterOps/BloodHound. Implemented feature flag gating for OG Collector Platform, introduced ogcollector as a first-class client type with version validation, and completed branding migration from OpenGraph Collector Platform to OpenHound, including related migrations and updated feature flags. Implemented API and client-endpoint updates to expose the ogcollector flow, enhanced version handling, and prepared migration steps to support a smooth transition. These changes unify platform support, improve developer experience, and position BloodHound for future OpenHound capabilities.

February 2026

2 Commits • 1 Features

Feb 1, 2026

February 2026 monthly summary for SpecterOps/BloodHound focused on feature flag governance and OpenGraph integration readiness. Delivered a new OpenGraph Collector Platform Support activation flag to enable runtime activation control and improved Open Graph data handling, establishing safer rollout paths. Added centralized ogcollector feature flag constants to improve consistency across components and reduce configuration drift. Performed minor cleanup to fix a typography inconsistency in flag naming for clarity. No major bugs reported this month; steady progress on platform integration and feature-tac uptake.

December 2025

1 Commits • 1 Features

Dec 1, 2025

December 2025 monthly summary for SpecterOps/BloodHound focused on delivering security-driven enhancements and improving test coverage. Implemented environment-targeted access control (ETAC) for search queries, introducing an environment-aware allowed-list to enforce permissions and strengthen data access controls. Expanded unit tests to cover ETAC scenarios and validate robustness of the new feature. Refined error handling in the authentication context to return HTTP 400 for invalid user context, improving failure visibility and diagnostics. No major bug fixes were reported this month; the primary emphasis was feature delivery, security hardening, and test quality.

June 2025

3 Commits • 2 Features

Jun 1, 2025

June 2025 monthly summary: Delivered stability and release hygiene improvements across SpecterOps/SharpHoundCommon and SpecterOps/BloodHound. Key features and fixes include LDAP filtering robustness improvements and a version release, plus container image maintenance to ensure dependencies are current.

May 2025

3 Commits • 2 Features

May 1, 2025

May 2025 performance highlights: Reliability and maintenance improvements across SpecterOps/SharpHoundCommon and SpecterOps/BloodHound delivered tangible business value through reduced log noise, improved error handling, and up-to-date components. Key features delivered and major bugs fixed: - LDAP Authentication Logging Improvement (SpecterOps/SharpHoundCommon): Refactored DCLdapProcessor to log InvalidOperationException as debug instead of error and added unit tests covering Authenticate scenarios. Commit cf50418c16e9599f612c66185d1fb431291c6914. - SharpHoundCommonLib Version Bump to v4.2.7: Dependency upgrade in the .csproj. Commit 9d1e859ee424cc23a10f05c4c8b5fed829c4f2ea. - SharpHound Docker image version bump (SpecterOps/BloodHound): Updated SHARPHOUND_VERSION to v2.6.6 in Dockerfiles to reflect the latest SharpHound release. Commit 5e8a64317d231efee09d501cc859d92f275cb4b3. Overall impact and accomplishments: Improved log signal-to-noise ratio, more robust authentication handling, stable dependencies, and streamlined release artifacts for containerized deployments. These changes enhance operational diagnosability and reduce noise in production monitoring and incident response. Technologies/skills demonstrated: C#, unit testing, refactoring for better logging, dependency management, Docker image maintenance, and release management (CI-ready changes).

April 2025

3 Commits • 1 Features

Apr 1, 2025

April 2025 performance summary for SpecterOps/SharpHoundCommon: Key reliability and quality improvements across LDAP time handling, NTLM authentication, and session processing. Delivered: 1) LDAP time conversion accuracy fix with refactor and unit tests to ensure UTC conversion before Unix epoch; 2) Expanded NTLM authentication test coverage and internal refactors to tighten processor reliability; 3) Filtered out domain '.' computer sessions with new unit test to prevent processing errors. Overall impact: increased data accuracy and processing stability; reduced risk of time skew and session processing errors in production. Technologies/skills demonstrated: C#/.NET, unit testing, test-driven development, code refactoring, UTC time handling, internal access modifiers.

March 2025

3 Commits • 1 Features

Mar 1, 2025

In March 2025, delivered concrete reliability, observability, and release hygiene improvements across SpecterOps repositories. Key features include robust timeout handling and status reporting for DCLdapProcessor and SmbProcessor with method refactors and tests to validate timeout and status reporting. Release housekeeping included a SharpHoundCommonLib version bump to 4.2.4. In SpecterOps/BloodHound, updated the SHS dependency to v2.6.1 in the api.Dockerfile to ensure the latest supported release, with no functional changes to application logic. These changes reduce operational risk, improve monitoring and deployment consistency, and set the stage for smoother future development.

February 2025

1 Commits • 1 Features

Feb 1, 2025

February 2025 monthly summary for SpecterOps/SharpHoundCommon: Delivered focused enhancements to testing coverage for critical processors to improve robustness and maintainability. No major bugs fixed this month in this repo. Overall, the work reduces production risk, speeds diagnosis of issues, and strengthens CI feedback loops. Technologies demonstrated include extensive unit testing targeting error handling and edge cases across ACLProcessor, LocalGroupProcessor, CertAbuseProcessor, and LldapPropertyProcessor; the change is tracked in commit 9460615f8394ed315909f30dfae349aac2b06078 (Added Testing Coverage #178).

Activity

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Quality Metrics

Correctness95.8%
Maintainability93.8%
Architecture91.6%
Performance92.2%
AI Usage22.0%

Skills & Technologies

Programming Languages

C#DockerfileGoSQLXML

Technical Skills

API developmentActive Directory SecurityAsynchronous ProgrammingBackend DevelopmentBuild ManagementC#CI/CDCode RefactoringContainerizationData FilteringDate and Time ManipulationDebuggingDependency ManagementDevOpsError Handling

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

SpecterOps/SharpHoundCommon

Feb 2025 Jun 2025
5 Months active

Languages Used

C#XML

Technical Skills

Active Directory SecurityError HandlingMockingTest-Driven DevelopmentUnit TestingAsynchronous Programming

SpecterOps/BloodHound

Mar 2025 Mar 2026
6 Months active

Languages Used

DockerfileGoSQL

Technical Skills

Dependency ManagementDevOpsContainerizationAPI developmentbackend developmenttesting