About Ryan
English
Native or bilingual
Experience
- Zendesk RemoteSenior Software Engineer, Full-Stack / AIOctober 2023 - Today (2 years and 9 months)• •Built customer-facing AI agent capabilities across Zendesk's Resolution Platform — AI Agents, Agent Builder, and custom agents that automate support over messaging, email, and voice — working across the stack from React admin surfaces to Python agent-runtime services, and helping grow automated resolutions past 40% of eligible conversations for enterprise accounts.• •Designed the multi-turn evaluation and semantic-observability layer that gates every agent release: accuracy/coherence/tone/safety scorers, adversarial multi-turn simulation, and automated regression detection — cutting production regressions ~35% release-over-release.• • Built the RAG pipeline behind grounded answers — knowledge connectors (Help Center, web crawler, Confluence, Google Drive), retrieval with re-ranking, and locale/search-rule scoping over an in-house retrieval index — improving answer relevance ~22% vs. a keyword-search baseline (measured on an ~800-query labeled eval set) while reducing median response latency ~18%.• • Implemented multi-model LLM routing and provider failover across OpenAI, Anthropic, Google, and Amazon Bedrock, selecting models per task on quality, latency, and cost, with multi-homing that kept agent availability above 99.9% during provider incidents.• • Cut model cost per resolved conversation ~45% through task-based model routing, response caching, and prompt/context trimming — without regressing resolution quality.• •Built a Python SDK and plugin interfaces plus a webhook-first, event-driven runtime (Chat, Ticket, and Widget Escalation APIs) for asynchronous agent orchestration and human handoff, using Pydantic typed schemas to normalize and validate agent execution and evaluation data.• •Delivered action-flow and MCP tool integrations (Salesforce, Slack, Jira, Google Sheets) so agents could take authorized actions, enforcing deny-by-default tool access with read/write scoping to meet enterprise governance requirements.
- AirtableSenior Software EngineerJuly 2020 - October 2023 (3 years and 3 months)San Francisco, CA, USA• •Led backend and full-stack development for enterprise platform and workflow-automation features — Interface Designer, the Automations engine, the Connected Apps Platform, and admin/security tooling — used by thousands of organizations.• •Launched enterprise governance capabilities including the redesigned Admin Panel, user groups, bulk permission management, audit logs, and workspace sharing restrictions, plus the early AI field type introduced in 2023.• •Built the automation execution system — triggers/actions, webhook ingestion, background script execution, run history, and automatic reruns for failed runs — scaling it to tens of millions of automation runs per month at 99.95% success.• •Designed RBAC-style permissioning and enterprise provisioning (SSO/SAML, SCIM, org-wide policies, audit logging) that unblocked adoption by large organizations and reduced admin-reported access issues ~30%.• • Implemented two-way Sync and verified-data flows for the Connected Apps Platform, keeping shared datasets consistent across teams while cutting duplicate-data support tickets ~25%.• •Drove a dedicated large-base performance effort, profiling hot paths and optimizing data access to improve load times on the largest bases ~40%.• •Built full-stack features in React, TypeScript, and Node.js against internal REST APIs, and delivered internal tooling that let support teams diagnose failed automations and sync issues faster.• •Partnered with product, design, and infrastructure teams; mentored junior engineers through code review and design guidance.
- AirtableSoftware EngineerNovember 2016 - June 2020 (3 years and 7 months)San Francisco, CA, USA• •Built full-stack product features for Airtable's collaborative, relational app-building experience — linked records, views, comments, attachments, and sharing — as the product grew from a database tool into a workflow platform.• • Contributed to the platform expansion into Blocks/Apps, the Scripting block, Automations, and Sync, turning Airtable into a connected operational data layer with JavaScript-powered custom workflows.• •Developed frontend interfaces in JavaScript and React alongside backend REST API endpoints and data models supporting real-time collaborative editing.• • Improved reliability and performance of core collaborative editing and workspace experiences, reducing sync related errors and improving perceived responsiveness for large shared bases.• •Built and maintained developer-facing surfaces including the scripting environment and public API behavior (personal access tokens, OAuth, webhooks, scopes), supporting integrations with external SaaS tools.• •Participated in on-call rotation, incident response, debugging, and cross-functional product planning within a fast scaling SaaS platform.
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Education
- B.S. in Computer Science and EngineeringSanta Clara University2016B.S. in Computer Science and Engineering