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Ruby Medeiros
Staff SRE and Software Engineer specializing in distributed systems and cloud reliability
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Built a production B2C behavioral interview system for job seekers using LangGraph/LangChain on AWS Bedrock with Nova models, plus a FastAPI backend and Vercel AI SDK frontend. Stands out for practical agent reliability work: local stress testing, OpenTelemetry-to-Datadog observability, token/cost monitoring, and guardrails to keep conversations on track and resistant to instruction override.
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Key Strengths
- shipped a production B2C LLM interview feature for job seekers
- built end-to-end agentic workflow architecture with LangGraph and Bedrock
- designed dynamic conversational interview flows instead of fixed question sequences
- strong LLM observability with OpenTelemetry and Datadog
- proactive adversarial and stress testing before launch
- implemented safeguards against prompt override, conversation drift, and runaway token costs
- iterative agent design using mocked tools and framework-native state management
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