Joshua Locash

- Designed and implemented a semantic, knowledge-based system and framework for capturing, analyzing, and verifying the complete lineage of digital media assets. Leveraged W3C PROV-O as an upper-ontology to support robust media authentication through provenance chain analysis and provide an open, standardized methodology for evaluating forensic detection techniques.

- Worked as a technical lead on the Test & Evaluation (T&E) team under the DARPA Semantic Forensics (SemaFor) program.

• Designed and implemented media journaling and evaluation tooling for the DARPA Semantic Forensics (SemaFor) Program
• Contributed to evaluation design working groups, working with threat modelers to capture data, API and scoring considerations
• Led development for the team's ground truth and media journaling system
• Used React with PatternFly to create a simple, intuitive UI for executing program evaluations and visualizing classifier results.
• Leveraged Helm to easily deploy the system on Kubernetes
• Collaborated with other developers, researchers, and analysts through working-group style meetings to understand requirements and features

• Developed server-side services for virtualization client configuration management in a managed Xen environment
• Managed deployment configurations and API integration for seamless client-server communication
• Implemented client-side synchronization and provisioning mechanisms for efficient device registration and updates

• Implemented a AWS Lambda in TypeScript to move objects to S3 as part of a CI/CD pipeline
• Produced unit, integration and end-to-end tests for frontend code using Jest and Puppeteer

• Configured and evaluated the performance of the Raspberry Pi 3B as a portable ATAK Server