Open to opportunities

Dondray Li

@dondrayli

Message

I am a Senior Java Full Stack Engineer building scalable, secure microservices and React frontends.

United States

Message

What I'm looking for

I am seeking a Senior Java/Full-Stack role where I can architect secure, scalable microservices, integrate AI models, mentor engineers, and deliver measurable impact in healthcare or fintech with strong CI/CD and cloud practices.

I am a results-driven Senior Java Full Stack Engineer with 8+ years designing and delivering scalable, secure applications across healthcare, fintech, AI, and SaaS domains. I focus on translating complex business needs into elegant engineering solutions that meet regulatory requirements.

I have led microservices migrations, integrated AI/ML models, and built dynamic React/TypeScript front ends while optimizing back-end performance with Java, Spring Boot, Kafka, and cloud-native pipelines. My work has driven measurable outcomes—improving referral accuracy, reducing latency, scaling inference throughput, and cutting release cycles through CI/CD and infrastructure-as-code.

I enjoy mentoring engineers, collaborating with cross-functional teams, and building production-grade systems that deliver measurable business impact in regulated environments.

Experience

Work history, roles, and key accomplishments

Current

Senior Java Software Engineer

Current

Lyra Health

Jan 2023 - Present (2 years 9 months)

Architected and delivered scalable Java/Spring Boot REST APIs and modernized provider-matching with Elasticsearch and React, boosting referral accuracy by 35% and reducing downtime incidents by 80% via containerized microservices. Built Kafka ETL pipelines and a secure multi-tenant backend (JWT/OAuth2) that cut provisioning time from days to hours and improved patient follow-up adherence by 25%.

Java Spring Boot Microservices Kubernetes Elasticsearch React TypeScript Kafka Terraform

Senior Java Developer

Cohere

Jan 2020 - Jan 2023 (3 years)

Designed a Java/Spring Boot ML inference microservice that reduced latency by 60% and increased throughput 4× to handle thousands of clinical requests per minute, and rebuilt PDF ingestion with OCR, Kafka, and TensorFlow improving model accuracy by 30%. Led full-stack HL7/DaVinci integrations and automation that raised auto-approval rates to 90%, cutting provider review time by one-third and reduc

Java Spring Boot Machine Learning Kafka TensorFlow React HL7 Jenkins Kubernetes

Java Developer

ClickUp

Jan 2017 - Jan 2020 (3 years)

Engineered Java/Spring Boot backend microservices and a Kafka/Redis notification system supporting over 50 million daily notifications with sub-second latency and integrated Elasticsearch to enhance search across large-scale projects. Optimized JPA/Hibernate queries and indexing, reducing database query times by 40% and enabling scalable, responsive dashboards.

Java Spring Boot Kafka Redis Elasticsearch JPA REST APIs OAUTH2 Docker

Java Developer

TestRigor

Jan 2015 - Jan 2017 (2 years)

Developed Java backend modules and AI-driven test synthesis that increased test creation speed up to 10× and built REST microservices for cross-browser execution, reducing end-to-end test run time by 40%. Integrated generative AI for prompt interpretation and implemented enterprise audit logging and access controls to support compliance requirements.