Open to new opportunities

David Chang

Senior Software Engineer  ·  AI/ML Infrastructure  ·  Distributed Systems  ·  Healthcare

12+

Years experience

AI · Healthcare · Infra

Specializations

Google · Zing · Ambience · Salt AI

Past companies

Playa Vista, CA

Location

David Chang
12+years
experience
Playa Vista, CA
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What I bring

Backend depth meets AI systems experience.

Distributed Systems

Async pipelines and queue-based execution that keep working when things fail.

AI/ML Infrastructure

Orchestration layers and monitoring that make ML workflows production-grade.

Healthcare Systems

FHIR, HL7, Epic/Cerner integrations and clinical workflows built to HIPAA standards.

Scalable Infrastructure

Kubernetes, AWS, Docker, and Prometheus/Grafana — observability built into the design.

Featured Projects

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Architecture preview

Visual PipelineUser-defined nodesOrchestration APIFastAPI + GraphQLWorker PoolCelery + RedisResultWebhook / APIEnterprise isolation via Kubernetes namespaces + AWS VPC

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Salt AI
60% faster integrationsJan 2025 – Mar 2026

AI Workflow Orchestration Platform

Distributed execution system and orchestration layer for AI workflows — converting visual pipelines into production-ready APIs with reliable retry, dependency scheduling, and enterprise connector integrations.

PythonFastAPICeleryRedisKubernetes+3
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Architecture preview

Epic / CernerFHIR + HL7 v2EHR GatewayNormalize + RouteNLP CodingICD-10 / CPTChart AILLM summariesEHR WriteAudit loggedKafka event bus decouples EHR ingestion from AI services · HIPAA-compliant throughout

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Ambience Health
Reduced physician admin timeAug 2021 – Dec 2024

Healthcare AI & EHR Integration Platform

Clinical AI platform integrating with Epic and Cerner via FHIR/HL7, automating medical coding with NLP models, and reducing physician administrative burden through intelligent chart summarization and workflow automation.

PythonFastAPINode.jsKafkaFHIR+5
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Architecture preview

Member PortalReact · Node.jsCare CoordinationNurse workflowsPop HealthPython · Risk scoringPostgreSQLSource of truthMedicare Advantage platform · Domain-separated services · Query-optimized PostgreSQL

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Zing Health
Medicare Advantage platformMay 2018 – Aug 2021

Medicare Advantage Healthcare Platform

Full-stack healthcare platform serving Medicare Advantage members — spanning a self-service Member Portal, a Care Coordination system for nurses and case managers, and a Population Health analytics platform for proactive care interventions.

ReactNode.jsPostgreSQLPythonREST APIs+2
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Architecture preview

Training DataGCS / ColossusTF TrainingGPU / TPU clusterModel RegistryVersioned + evalServingCanary rolloutpasses evalpromoteCheckpoint-based fault tolerance · Canary deployment with automatic quality-based rollback

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Google
Google-scale ML infraFeb 2015 – Aug 2021

ML Infrastructure & Training Pipelines

Production ML infrastructure for training and deploying speech recognition, computer vision, and recommendation models at scale — building the systems that let research teams productionize experimental models safely.

TensorFlowPythonDistributed SystemsGPU ClustersML Pipelines+1
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Experience

Salt AI

Senior Full Stack Engineer  ·  2025–2026

Ambience Health

Senior Software Engineer  ·  2021–2024

Zing Health

Senior Software Engineer  ·  2018–2021

Google

Software Engineer  ·  2013–2018