Benjamin Johnston
(Systems Engineer)
Welcome! I build tools, libraries, and automation that reduce friction, simplify complex workflows, and make systems easier to extend and rely on.
My work spans native and managed environments, with a strong focus on turning messy or repetitive processes into rule-based, durable products.
Eliminated 95% of manual contractor effort via workflow automation
Built AutoHandshake! — a Selenium-based RPA suite with failure recovery and full audit trails that reduced manual annotation and triage by 95% across 400+ contractor hours. Recognized with Handshake's Model Validation 2 — Expert credential.
Evaluated search relevance and LLM responses at scale
Assessed query-result quality and multimodal AI outputs for RWS Group and Handshake, applying structured rubrics and benchmark design to improve ranking accuracy and model behavior.
Built production-ready SDKs and developer tooling
Google-SDK and Intuit provide strongly typed APIs for Drive integration and LLM endpoints, replacing fragile JSON shims with reusable, auto-refreshing clients for production workflows.