Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I'm a Senior Software Engineer with 11 years of experience delivering scalable, cloud-native applications across startups and enterprise environments. I specialize in backend, frontend, DevOps, and AI-driven systems, using Python, Java, React.js, FastAPI, Kubernetes, and AWS to build secure, high-performance solutions. I've led cross-functional teams to ship mission-critical products in healthcare, data science, and fintech, driving better reliability, user experience, and business results.…I'm a Senior Software Engineer with 11 years of experience delivering scalable, cloud-native applications across startups and enterprise environments. I specialize in backend, frontend, DevOps, and AI-driven systems, using Python, Java, React.js, FastAPI, Kubernetes, and AWS to build secure, high-performance solutions. I've led cross-functional teams to ship mission-critical products in healthcare, data science, and fintech, driving better reliability, user experience, and business results.

Xun Zhu

Full Stack Developer, AI Engineer, Back-End Developer, +2





I'm a Senior Software Engineer with 11 years of experience delivering scalable, cloud-native applications across startups and enterprise environments. I specialize in backend, frontend, DevOps, and AI-driven systems, using Python, Java, React.js, FastAPI, Kubernetes, and AWS to build secure, high-performance solutions. I've led cross-functional teams to ship mission-critical products in healthcare, data science, and fintech, driving better reliability, user experience, and business results.…I'm a Senior Software Engineer with 11 years of experience delivering scalable, cloud-native applications across startups and enterprise environments. I specialize in backend, frontend, DevOps, and AI-driven systems, using Python, Java, React.js, FastAPI, Kubernetes, and AWS to build secure, high-performance solutions. I've led cross-functional teams to ship mission-critical products in healthcare, data science, and fintech, driving better reliability, user experience, and business results.

Available to hire

I’m a Senior Software Engineer with 11 years of experience delivering scalable, cloud-native applications across startups and enterprise environments. I specialize in backend, frontend, DevOps, and AI-driven systems, using Python, Java, React.js, FastAPI, Kubernetes, and AWS to build secure, high-performance solutions.

I’ve led cross-functional teams to ship mission-critical products in healthcare, data science, and fintech, driving better reliability, user experience, and business results.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

Senior Software Engineer at Aledade

November 1, 2024 - Present

Designed and delivered core modules of a population-health platform, supporting 2,000+ practices and 2.8M patient records under HIPAA/SOC-2 compliance. Built an ingestion gateway with Python, FastAPI, Kafka, and Snowflake; processed 500M+ events/month from 20+ EHR vendors. Migrated batch ETL to real-time AWS Kinesis, reducing data latency from 2 hours to 15 minutes and enabling $8M/year in shared savings. Led OpenTelemetry and DataDog dashboards; automated CI/CD with GitHub Actions; mentored six engineers.

Senior AI Engineer at Aledade

October 1, 2024 - October 9, 2025

Led AI initiatives integrating LLMs and RAG pipelines into the platform to automate clinical insights. Built and deployed LLM-based microservices using Python, FastAPI, LangChain, and Snowflake Cortex, improving coding accuracy and reducing manual work by 60%. Implemented vector search with Pinecone and Redis, enabling fast and accurate retrieval of clinical data. Set up Datadog dashboards and OpenTelemetry tracing for AI observability and performance tracking. Collaborated with data science and compliance teams to meet HIPAA and SOC-2 requirements.

Senior Full Stack Engineer at Broad Institute

July 1, 2023 - October 9, 2025

Led an 8-member Scrum team modernizing biosystems; built Terra, a cloud-native platform managing 80PB of biomedical data and millions of workflows. Engineered Scala and C# microservices across GCP/Azure VMs and Kubernetes (GKE/AKS) with Jupyter Docker images. Designed multi-cloud data tenancy and dynamic bursting across GCP and Azure. Improved CI/CD pipelines with GitHub Actions, Jenkins, and Terraform, increasing deployment reliability and release velocity. Modeled relational schemas in SQL to manage user environments, storage quotas, and metadata integrity. Refactored frontend with Vue.js and TypeScript; migrated JavaScript to TypeScript; expanded analytics tools with R Studio, Galaxy, UCSC Genome Browser.

Full Stack Engineer at United Health Group

March 1, 2019 - October 9, 2025

Led an 8-member Scrum team modernizing benefits software, raising NPS by 18 points. Built full-stack applications using React and Go, enabling real-time insurance lookups and reducing average call-handling time. Designed an ETL pipeline using Java and Jenkins to convert terabytes of Word documents into MarkLogic NoSQL with keyword indexing. Deployed services on Kubernetes (EKS) using Terraform and blue-green releases.

Software Engineer at Endicia

May 1, 2016 - October 9, 2025

Built a Java-based microservice emulating USPS shipping API pre-release, boosting high-volume parcel processing performance by 100×. Tuned the JVM and Spring MVC threads; developed rule-driven services using JBoss Drools, Jetty, and Nginx to support dynamic workflows.

Senior Software Engineer at Aledade

November 1, 2024 - Present

Designed and delivered core modules of Aledade's population-health platform, supporting 2,000+ practitioners and 2.8M patient records under HIPAA and SOC-2 compliance. Built a FHIR-based ingestion gateway using Python, FastAPI, Kafka, and Snowflake, processing 500M+ events/month from 20+ EHR vendors. Migrated batch ETL to real-time AWS Kinesis streaming, reducing data latency from 2 hours to 15 minutes and recovering $8M/year in shared savings. Developed a React + GraphQL provider dashboard for risk and quality metrics, boosting clinician engagement by 35%. Integrated LLM-powered RAG assistant using Snowflake Cortex + LangChain; implemented OpenTelemetry and DataDog dashboards; automated CI/CD pipelines with GitHub Actions; mentored engineers on system design and API architecture.

Senior AI Engineer at Aledade

October 1, 2024 - October 9, 2025

Led AI initiatives integrating LLMs and RAG pipelines into Aledade’s health-care platform to automate clinical insights. Built and deployed LLM-based microservices using Python, FastAPI, LangChain, Snowflake, and Kubernetes, improving model-assisted workflows and reducing manual work.

Senior Full Stack Engineer at Broad Institute

July 1, 2023 - October 9, 2025

Built Terra, a cloud-native platform managing 80 PB of biomedical data and millions of workflows. Engineered Scala and C# microservices for multi-cloud compute (GCP/Azure VMs, GKE/AKS) with Jupyter Dockers. Designed multi-cloud data tenancy and dynamic bursting across GCP and Azure. Improved CI/CD pipelines with GitHub Actions, Jenkins, and Terraform, increasing deployment reliability and release velocity. Modeled relational schemas in SQL; refactored frontend with Vue.js and TypeScript; migrated JavaScript to TypeScript (~70%), improving test accuracy and maintainability. Expanded analytics tools with R Studio, Galaxy, and UCSC Genome Browser.

Full Stack Engineer at UnitedHealth Group

March 1, 2019 - October 9, 2025

Led an 8-member Scrum team modernizing benefits information systems, raising NPS by 18 points. Built real-time insurance lookup with React and Go, reducing average call-handling time. Designed ETL pipelines migrating terabytes of Word documents into MarkLogic NoSQL with keyword indexing. Deployed services on Kubernetes (EKS) using Terraform and blue-green releases.

Software Engineer at Endicia

May 1, 2016 - October 9, 2025

Implemented scalable shipping API workflows; contributed to order processing and label generation; deployed on AWS with CI/CD pipelines.

Full Stack Engineer at Health AI Labs

August 1, 2015 - October 9, 2025

Joined an early-stage health-care AI startup, building the company’s first cloud-based patient analytics platform. Built RESTful APIs with Python (Flask) and PostgreSQL; processed data from wearable devices in near real time. Created a lightweight AngularJS + Bootstrap frontend for clinicians to visualize risk scores and patient summaries. Deployed services on AWS EC2 and Kubernetes with Terraform.

Senior AI Engineer at Aledade

October 2, 2024 - October 9, 2025

Led AI initiatives integrating LLMs and RAG pipelines into Aledade’s health care platform to automate clinical insights.

Senior Full Stack Engineer at Broad Institute

July 2, 2023 - October 9, 2025

Built Terra, a cloud-native platform managing 80 PB of biomedical data and millions of workflows. Engineered Scala and C# microservices to support multi-cloud compute environments (GCP/AWS) with Jupyter Dockers. Designed and tested multi-cloud data tenancy and dynamic bursting across GCP and Azure. Improved CI/CD pipelines with GitHub Actions and Jenkins; migrated to Terraform and TerraForm; modeled relational schemas in SQL and managed data integrity. Led a JavaScript → TypeScript migration (~70% conversion) and expanded analytics tooling (R Studio, Galaxy, UCSC Genome Browser) for flexible research data analysis.

Full Stack Engineer at Health AI Labs

August 2, 2015 - October 9, 2025

Joined an early-stage health care AI startup, building the company’s first cloud-based patient analytics platform from the ground up. Developed RESTful APIs using Python/Flask and PostgreSQL; processed medical data from wearables in near real-time. Built a lightweight AngularJS + Bootstrap front-end for clinicians to visualize risk scores and patient summaries. Deployed services on AWS EC2 with Terraform and blue-green releases; implemented data tenancy and scalable data pipelines.

Senior Full Stack Engineer at UnitedHealth Group

March 2, 2019 - October 9, 2025

Led an eight-member Scrum team modernizing benefits information systems, raising NPS by 18 points. Built full-stack applications using React and Go to enable real-time insurance lookups and reduce average call-handling time. Designed ETL pipelines using Java and Jenkins to convert terabytes of Word documents into MarkLogic NoSQL with keyword indexing. Deployed services on Kubernetes (EKS) with Terraform and blue-green releases. Migrated a large codebase from JavaScript to TypeScript (~70% conversion), improving test coverage and maintainability. Expanded analytics tooling with R Studio, Galaxy, and UCSC Genome Browser to enhance data analysis capabilities.