SpecterOps/BloodHound
Nov 2024 – Sep 2025
7 Months active
Languages Used
GoYAMLCueTypeScriptSQLCUEJavaScriptJSON
Technical Skills
API DocumentationOpenAPIData ModelingGraph DatabaseRefactoringSchema Design
Brandon Shearin
PROFILE
Brandon Shearin
Over seven months, Brandon Shearin engineered robust data ingestion and management features for the SpecterOps/BloodHound repository, focusing on scalable backend systems and API design. He refactored graph traversal schemas and modernized ingestion pipelines, introducing generic ingest validation and idempotent database migrations using Go and SQL. Brandon enhanced API documentation with OpenAPI standards, improved error handling, and implemented high-availability changelog daemons with deduplication and feature flag controls. His work included integration and unit testing, schema validation with JSON Schema, and database management, resulting in more reliable, maintainable pipelines and streamlined onboarding for new data sources while reducing operational risk and support overhead.
Overall Statistics
Feature vs Bugs
80%Features
Repository Contributions
16Total
Bugs
2
Commits
16
Features
8
Lines of code
18,316
Activity Months7
Your Network
90 people
Work History
September 2025
5 Commits • 2 Features
Sep 1, 2025Month 2025-09 performance review for SpecterOps/BloodHound focusing on reliability, scalability, and data integrity of graph ingestion. Delivered a Changelog Daemon with deduplication and buffering, integrated feature flag controls for dynamic enable/disable, and introduced High Availability (HA) support so only the primary instance performs critical operations. Strengthened test coverage around data updates and HA paths to reduce risk and accelerate issue diagnosis. The changes improve data accuracy, reduce duplicate processing, and increase overall uptime for ingestion pipelines.
5 Commits • 2 Features
Sep 1, 2025Month 2025-09 performance review for SpecterOps/BloodHound focusing on reliability, scalability, and data integrity of graph ingestion. Delivered a Changelog Daemon with deduplication and buffering, integrated feature flag controls for dynamic enable/disable, and introduced High Availability (HA) support so only the primary instance performs critical operations. Strengthened test coverage around data updates and HA paths to reduce risk and accelerate issue diagnosis. The changes improve data accuracy, reduce duplicate processing, and increase overall uptime for ingestion pipelines.
September 2025
July 2025
2 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for SpecterOps/BloodHound: Delivered OpenGraph enhancements and robust data purge capabilities, enabling granular ingestion and deletion by source kind with sourceless data support. Implemented a new source_kind field in the OpenGraph schema, added API endpoints for managing source kinds, and introduced comprehensive integration tests. Refactored the datapipe purge flow into a single reusable PurgeGraphData method, with integration tests validating deletions across sourceless data, specific source kinds, and full purges. Delivered via commits 36f48272ac7523403bbe8f333e2392a014b6ed20 (BED-6123: Add source_kind to OpenGraph Schema, #1682) and 2819e9e2ac3ca60b6cef9cd79deb2e05ff6c4eb9 (Bed 6251, #1718).
July 2025
2 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for SpecterOps/BloodHound: Delivered OpenGraph enhancements and robust data purge capabilities, enabling granular ingestion and deletion by source kind with sourceless data support. Implemented a new source_kind field in the OpenGraph schema, added API endpoints for managing source kinds, and introduced comprehensive integration tests. Refactored the datapipe purge flow into a single reusable PurgeGraphData method, with integration tests validating deletions across sourceless data, specific source kinds, and full purges. Delivered via commits 36f48272ac7523403bbe8f333e2392a014b6ed20 (BED-6123: Add source_kind to OpenGraph Schema, #1682) and 2819e9e2ac3ca60b6cef9cd79deb2e05ff6c4eb9 (Bed 6251, #1718).
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 performance summary for SpecterOps/BloodHound: Delivered API refactor for custom node management with validation enhancements; improved ingest schema error handling and documentation; increased type safety and debugging clarity; impact on operational reliability and developer productivity.
2 Commits • 1 Features
Jun 1, 2025June 2025 performance summary for SpecterOps/BloodHound: Delivered API refactor for custom node management with validation enhancements; improved ingest schema error handling and documentation; increased type safety and debugging clarity; impact on operational reliability and developer productivity.
June 2025
May 2025
2 Commits • 1 Features
May 1, 2025May 2025 monthly summary for SpecterOps/BloodHound focusing on feature delivery and data ingestion reliability. Delivered the Generic Ingest Data Pipeline enabling processing of generic nodes and edges with improved validation, refactored file handling, new conversion utilities for generic data, and enhanced relationship resolution logic with multiple matching strategies and kind filtering. Included a database migration to remove the unused is_generic field and comprehensive integration tests. Refined JSON schema validation to improve error messages and handle nested objects within property bags, clarifying allowed types and improving user feedback. No separate bug fixes recorded this month; the work emphasizes feature delivery, data quality, and ingestion robustness.
May 2025
2 Commits • 1 Features
May 1, 2025May 2025 monthly summary for SpecterOps/BloodHound focusing on feature delivery and data ingestion reliability. Delivered the Generic Ingest Data Pipeline enabling processing of generic nodes and edges with improved validation, refactored file handling, new conversion utilities for generic data, and enhanced relationship resolution logic with multiple matching strategies and kind filtering. Included a database migration to remove the unused is_generic field and comprehensive integration tests. Refined JSON schema validation to improve error messages and handle nested objects within property bags, clarifying allowed types and improving user feedback. No separate bug fixes recorded this month; the work emphasizes feature delivery, data quality, and ingestion robustness.
April 2025
3 Commits • 1 Features
Apr 1, 2025April 2025 performance summary for SpecterOps/BloodHound: Delivered major ingestion system modernization and reliability improvements. Key work included renaming FileUploadJob to IngestJob across models, services, and API endpoints; introduction of generic ingest schema validation for graph data; refactoring file upload endpoints to support generic ingestion with JSON schema validation for nodes and edges; implemented idempotent database migration to ensure repeated runs are safe. Overall, these changes improve data integrity, make ingestion more flexible, and reduce deployment risk.
3 Commits • 1 Features
Apr 1, 2025April 2025 performance summary for SpecterOps/BloodHound: Delivered major ingestion system modernization and reliability improvements. Key work included renaming FileUploadJob to IngestJob across models, services, and API endpoints; introduction of generic ingest schema validation for graph data; refactoring file upload endpoints to support generic ingestion with JSON schema validation for nodes and edges; implemented idempotent database migration to ensure repeated runs are safe. Overall, these changes improve data integrity, make ingestion more flexible, and reduce deployment risk.
April 2025
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 — SpecterOps/BloodHound: Delivered a graph traversal schema refactor for AD/Azure relationships, consolidating shared relationship kinds into a common set and defining explicit inbound and outbound relationship kinds for Active Directory and Azure. This refactor improves the graph data model, reduces duplication, and enhances maintainability for traversal logic, enabling faster future enhancements. Commit 9b9f80c37291d3530d522ee92ffa306802686cb0 documents the change ('traversals moved to common cue') under issue #1067. No major bugs fixed this month; the work delivers a cleaner data model, better scalability, and stronger technical foundations. Demonstrated skills: graph-schema design, targeted refactoring, and issue-driven development.
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 — SpecterOps/BloodHound: Delivered a graph traversal schema refactor for AD/Azure relationships, consolidating shared relationship kinds into a common set and defining explicit inbound and outbound relationship kinds for Active Directory and Azure. This refactor improves the graph data model, reduces duplication, and enhances maintainability for traversal logic, enabling faster future enhancements. Commit 9b9f80c37291d3530d522ee92ffa306802686cb0 documents the change ('traversals moved to common cue') under issue #1067. No major bugs fixed this month; the work delivers a cleaner data model, better scalability, and stronger technical foundations. Demonstrated skills: graph-schema design, targeted refactoring, and issue-driven development.
November 2024
1 Commits • 1 Features
Nov 1, 2024November 2024: Enhanced API documentation quality for SpecterOps/BloodHound with standardized findings endpoints, improving clarity for clients and reducing future maintenance.
1 Commits • 1 Features
Nov 1, 2024November 2024: Enhanced API documentation quality for SpecterOps/BloodHound with standardized findings endpoints, improving clarity for clients and reducing future maintenance.
November 2024
Activity
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Quality Metrics
Correctness90.0%
Maintainability88.2%
Architecture88.8%
Performance82.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
CUECueGoJSONJavaScriptSQLTypeScriptYAML
Technical Skills
API DesignAPI DevelopmentAPI DocumentationBackend DevelopmentCachingCode RenamingConcurrencyDaemon DevelopmentData IngestionData ManagementData ModelingData StructuresDatabase IntegrationDatabase ManagementDatabase Migration
Repositories Contributed To
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