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Senior AI Fullstack Engineer

I am Kevin Wang, a Senior AI Fullstack Engineer with nearly a decade of experience building production-grade AI systems across fintech, real estate, and AI SaaS. I specialize in designing and deploying machine learning systems, end-to-end AI-bowered product features, and scalable cloud infrastructure from early-stage ideation through production deployment.

Senior AI Fullstack Engineer
PythonJavaScriptTypeScriptRubyC#FastAPIDjangoReactNext.jsNode.jsASP.NET CoreRuby on RailsPyTorchTensorFlowScikit-learnHugging Face TransformersLangChainLlamaIndexPandasNumPyLarge Language ModelsRetrival-Augmented GenerationPrompt EngineeringEmbeddingsVector SearchModel EvaluationFine-tuningAgentic SystemsMulti-modal ModelsPostgreSQLMySQLMongoDBRedisPineconepgvectorElasticsearchAmazon S3AWSGCPAzureSageMakerVertex AILambdaTerraformDockerKubernetesHelmCI/CDGitHub ActionsAirflowPytestJestxUnitRSpecCypress

Experience

Senior AI FullStack Engineer

Orita
-Built and deployed LLM features in production customer-facing applications.
-Designed RAG systems using enterprise data for real-time AI responses.
-Developed frontend AI workflows for real-time LLM interaction.
-Architected backend orchestration for AI inference and response generation.
-Built observability systems to monitor AI behavior, latency, and reliability.
-Improved deployment pipelines for zero-downtime releases of AI services.

AI Software Engineer

Pacaso
-Built AI property matching system for customer-facing search.
-Developed React-based frontend search and filtering for real estate exploration.
-Designed backend ranking & recommendation services for real-time discovery.
-Built conversational AI assistant to reduce customer support workload.
-Developed document intelligence pipeline to automate contract processing.
-Partnered with growth teams on AI-driven lead scoring and user segmentation.

AI Software Engineer

Robinhood
-Built full-stack features for financial product discovery and personalized UX in production.
-Developed backend services for real-time fraud detection and transaction monitoring at scale.
-Integrated recommendation systems into customer-facing financial dashboards.
-Contributed to feature store infrastructure for ML training and production inference.
-Improved scalability and reliability across high-traffic financial systems.
-Collaborated cross-functionally to ship production ML-powered features.

Software Engineer

Robinhood
-Developed React UI components for search, filtering, and data visualization in production.
-Built backend APIs for large-scale financial and market data ingestion.
-Supported A/B testing frameworks used in production product decision-making.
-Refactored backend services to improve performance and maintainability.

Software Engineer

Redfin
-Built property search and listing features, lifting search engagement over two quarters.
-Developed real-time map-based property filter, reducing load time and improving mobile retention.
-Engineered MLS data pipelines processing high-volume daily listings across markets.
-Ran A/B tests on home valuation components, driving measurable tour conversion gains.
-Refactored core listing APIs to reduce response time and eliminate technical debt.

Software Engineer Intern

Google
-Built internal developer tools used across engineering teams.
-Developed backend services and dashboards for distributed engineering workflows.
-Improved query performance through caching and system optimizations.
-Delivered production-ready internal infrastructure tooling.

Projects

Redfin

Redfin

Developed and enhanced Redfin's real estate search and listing platform, delivering scalable property discovery, MLS data integration, and high-performance backend services.

Orita

Orita

Built and deployed production-grade LLM-powered applications with RAG-based enterprise knowledge retrieval, real-time AI workflows, and observability-driven AI system reliability.

Pacaso

Pacaso

Built AI-driven property search, recommendation, conversational assistant, and document intelligence systems to improve real estate discovery, customer engagement, and lead conversion..

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