I am a Senior Software Engineer with extensive experience in backend development, cloud infrastructure, and AI-powered application design. Currently based in Irving, Texas, I have led complex projects involving AWS Step Functions, DynamoDB, and LLM integrations to optimize healthcare workflows and patient experience. I am passionate about designing scalable systems with high availability and ensuring data security compliance. With a strong background working at Amazon and Walmart Global Tech, I specialize in microservices, event-driven architectures, and data processing pipelines. I enjoy mentoring engineers and advocating best practices in system design and API development to foster team growth and project success.…

Benjamin Huang

I am a Senior Software Engineer with extensive experience in backend development, cloud infrastructure, and AI-powered application design. Currently based in Irving, Texas, I have led complex projects involving AWS Step Functions, DynamoDB, and LLM integrations to optimize healthcare workflows and patient experience. I am passionate about designing scalable systems with high availability and ensuring data security compliance. With a strong background working at Amazon and Walmart Global Tech, I specialize in microservices, event-driven architectures, and data processing pipelines. I enjoy mentoring engineers and advocating best practices in system design and API development to foster team growth and project success.…

Available to hire

I am a Senior Software Engineer with extensive experience in backend development, cloud infrastructure, and AI-powered application design. Currently based in Irving, Texas, I have led complex projects involving AWS Step Functions, DynamoDB, and LLM integrations to optimize healthcare workflows and patient experience. I am passionate about designing scalable systems with high availability and ensuring data security compliance.

With a strong background working at Amazon and Walmart Global Tech, I specialize in microservices, event-driven architectures, and data processing pipelines. I enjoy mentoring engineers and advocating best practices in system design and API development to foster team growth and project success.

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Skills

Experience Level

API
Expert
AWS
Expert
Python
Expert
Java
Expert
GitHub
Expert
DynamoDB
Expert
PostgreSQL
Expert
Node.js
Expert
Docker
Expert
Django
Expert
Spring
Expert
Redis
Expert
GraphQL
Expert
JavaScript
Expert
Kotlin
Expert
Kubernetes
Expert
Spark
Expert
MySQL
Expert
React JS
Expert
TensorFlow
Expert
MongoDB
Expert
Jira
Expert
C++
Expert
C#
Expert
Go
Intermediate
.NET
Intermediate
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Work Experience

Senior Software Engineer at Amazon
September 1, 2019 - Present
Led the design and implementation of a high-availability appointment scheduling service using AWS Step Functions and DynamoDB, scaling to support 50K+ daily bookings. Architected a provider availability system with Amazon EventBridge and Lambda to reduce clinician response times by 67%. Developed patient triage APIs leveraging Amazon Bedrock's LLMs with custom guardrails achieving a 92% auto-resolution rate. Implemented HIPAA-compliant data security using AWS KMS and IAM boundary policies with automated key rotation. Built audit logging subsystems with CloudTrail and OpenSearch ensuring compliance with immutable logging. Optimized clinical documentation processes using Amazon Textract and Comprehend Medical, reducing provider charting time by 30%. Proposed and executed migration from cron-based to event-driven scheduling, achieving 40% latency reduction. Established API design standards adopted by multiple teams and mentored mid-level engineers in best practices and career growth.
Senior Software Engineer at Walmart Global Tech
September 1, 2019 - September 4, 2025
Developed an inventory status API with Node.js and Redis caching, reducing database load by 40%, and authored Swagger documentation for partner teams. Created recommendation service components integrating TensorFlow models via gRPC with circuit breaker patterns achieving 99.95% uptime. Built supplier dashboard widgets using React and D3.js to visualize Kafka event stream data, lowering vendor support tickets by 25%. Optimized ETL pipelines using Apache Spark and Airflow sensors, decreasing runtime by 35%. Improved checkout reliability with PostgreSQL idempotency keys and SQS dead-letter queues. Migrated reporting tools to AWS QuickSight and trained team members in dashboard creation. Implemented a geohash-based store locator microservice with Spring Boot improving response times by 60%. Designed DynamoDB product catalog tables and backfilled over 2 million items. Diagnosed and fixed Java service memory leaks, reducing heap usage by 50%.
Senior Software Engineer at Amazon
September 1, 2019 - Present
Led the design and implementation of an appointment scheduling service handling over 50,000 daily bookings with 99.99% availability using AWS Step Functions and DynamoDB. Architected a provider availability system with real-time event processing that reduced clinician response times by 66%. Owned the development of a patient triage API powered by Amazon Bedrock LLMs achieving 92% auto-resolution. Implemented HIPAA-compliant data flows using AWS KMS and envelope encryption including automated key rotation. Built audit logging subsystems for compliance with encrypted, immutable logs. Optimized clinical documentation through OCR and NLP services, improving provider charting efficiency by 30%. Migrated scheduling systems from cron-based to event-driven achieving 40% latency reduction. Established API design patterns adopted by multiple teams and mentored mid-level engineers.
Senior Software Engineer at Walmart Global Tech
September 1, 2019 - September 4, 2025
Developed an inventory status API with Node.js and Redis caching that reduced database calls by 40%. Built recommendation service components integrated with TensorFlow models and maintained 99.95% service availability. Created React and D3.js dashboards visualizing shipment delays cutting vendor support tickets by 25%. Optimized Spark ETL pipelines improving job runtime by 35%. Enhanced checkout reliability with idempotency keys and dead-letter queues. Migrated reporting tools to AWS QuickSight with Athena SQL datasets and supported team training. Designed geohash-cached store locator microservices, doubling response speed. Engineered DynamoDB tables for product catalogs and resolved Java service memory leaks halving heap usage.
Senior Software Engineer at Amazon
September 1, 2019 - Present
Led design and implementation of appointment scheduling and provider availability services using AWS Step Functions, DynamoDB, Amazon EventBridge, and Lambda to handle high-volume healthcare workflows with 99.99% availability and real-time event processing. Developed a patient triage API using Amazon Bedrock's LLMs with custom guardrails and confidence scoring achieving 92% auto-resolution rate. Implemented HIPAA-compliant data flows with AWS KMS envelope encryption and automated key rotation. Built audit logging systems using CloudTrail and OpenSearch for compliance with immutable logs. Optimized clinical documentation services integrating Amazon Textract and Comprehend Medical for NLP, reducing provider charting time by 30%. Migrated scheduling from cron-based to event-driven approaches with 40% latency reduction. Established API design patterns now adopted across multiple teams and mentored mid-level engineers on DynamoDB best practices and system design.
Senior Software Engineer at Walmart Global Tech
September 1, 2019 - September 4, 2025
Built inventory status API with Node.js and Express, reducing database calls by 40% via Redis caching and documented APIs with Swagger. Developed recommendation service components integrating TensorFlow models using gRPC and implemented circuit breakers to maintain 99.95% uptime under peak load. Created supplier dashboard widgets visualizing shipment delays from Kafka streams, reducing vendor support tickets by 25%. Optimized ETL pipelines in Apache Spark cutting runtimes by 35% and used Airflow sensors for orchestration. Enhanced checkout reliability with idempotency keys and SQS dead-letter queues. Migrated legacy reporting to AWS QuickSight with Athena datasets and trained team members. Developed store locator microservice with Spring Boot and geohash caching improving response times by 60%. Designed DynamoDB tables for product catalog and backfilled 2M+ items with Python scripts. Fixed memory leaks in Java services, reducing heap usage by 50% through profiling and connection pool t

Education

Bachelor of Science in Computer Science at The University of Dallas
January 1, 2010 - January 1, 2014
Bachelor of Science in Computer Science at The University of Dallas
January 1, 2010 - January 1, 2014
Bachelor of Science at The University of Dallas
January 1, 2010 - January 1, 2014

Qualifications

Add your qualifications or awards here.

Industry Experience

Healthcare, Retail, Software & Internet, Financial Services, Media & Entertainment

Skills

Experience Level

API
Expert
AWS
Expert
Python
Expert
Java
Expert
GitHub
Expert
DynamoDB
Expert
PostgreSQL
Expert
Node.js
Expert
Docker
Expert
Django
Expert
Spring
Expert
Redis
Expert
GraphQL
Expert
JavaScript
Expert
Kotlin
Expert
Kubernetes
Expert
Spark
Expert
MySQL
Expert
React JS
Expert
TensorFlow
Expert
MongoDB
Expert
Jira
Expert
C++
Expert
C#
Expert
Go
Intermediate
.NET
Intermediate
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