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I am a software engineer with 7 years of experience building backend services and user interfaces for regulated industries. I focus on maintainable backend systems and practical frontend applications, with recent work supporting privacy compliance and data governance at scale. I enjoy solving operational challenges, like reducing latency in high-throughput pipelines or simplifying complex workflows for non-technical stakeholders, and mentoring teammates through code reviews and design discussions.…I am a software engineer with 7 years of experience building backend services and user interfaces for regulated industries. I focus on maintainable backend systems and practical frontend applications, with recent work supporting privacy compliance and data governance at scale. I enjoy solving operational challenges, like reducing latency in high-throughput pipelines or simplifying complex workflows for non-technical stakeholders, and mentoring teammates through code reviews and design discussions.

Xinhao Zhang

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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I am a software engineer with 7 years of experience building backend services and user interfaces for regulated industries. I focus on maintainable backend systems and practical frontend applications, with recent work supporting privacy compliance and data governance at scale. I enjoy solving operational challenges, like reducing latency in high-throughput pipelines or simplifying complex workflows for non-technical stakeholders, and mentoring teammates through code reviews and design discussions.…I am a software engineer with 7 years of experience building backend services and user interfaces for regulated industries. I focus on maintainable backend systems and practical frontend applications, with recent work supporting privacy compliance and data governance at scale. I enjoy solving operational challenges, like reducing latency in high-throughput pipelines or simplifying complex workflows for non-technical stakeholders, and mentoring teammates through code reviews and design discussions.

Available to hire

I am a software engineer with 7 years of experience building backend services and user interfaces for regulated industries. I focus on maintainable backend systems and practical frontend applications, with recent work supporting privacy compliance and data governance at scale.

I enjoy solving operational challenges, like reducing latency in high-throughput pipelines or simplifying complex workflows for non-technical stakeholders, and mentoring teammates through code reviews and design discussions.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Software Engineer at TikTok

March 1, 2021 - Present

Privacy & Compliance Engineering: Developed privacy consent systems (Node.js + React) serving 50M+ DAU; enabled GDPR/CCPA workflows and reduced legal review cycle by 25%. Built a PII metadata extraction service in TypeScript to automate sensitive content detection in data lakes, reducing privacy ops workload. Migrated authorization logic to OPA-based policy enforcement, improving test coverage and lowering post-launch issues. Created an internal React/D3 dashboard for data retention monitoring used by legal and engineering to accelerate privacy audits. Integrated a ZKP-based age-verification SDK to validate eligibility without persisting raw IDs. Optimized Kafka consumer logic for user deletions with idempotency; reduced frontend bundle sizes by 30% through tree-shaking. Offloaded cryptographic tasks to Node.js Worker Threads to stabilize p95 latency. Supported canary deployments via Istio and wrote runbooks; mentored juniors on testing and accessibility during privacy redesign.

Software Engineer I at TeleTracking

August 1, 2019 - March 1, 2021

Patient Flow Platform: Built a patient flow coordination portal (Node.js + Angular) across 3 sites. Refactored a monolithic scheduling module into NestJS microservices to improve scalability; reduced deployment friction. Implemented a data transformation layer mapping events to FHIR for interoperability with EHRs, enabling 2 partnerships. Created a real-time ward acuity dashboard with React + Socket.io. Integrated AWS S3 with server-side encryption for HIPAA-compliant document storage. Optimized PostgreSQL queries for patient-status endpoints, lowering p95 latency from 400ms to 250ms. Automated local development with Docker Compose, cutting onboarding time.

Software Engineer intern at Eimageglobal

January 1, 2019 - May 1, 2019

Web-based DICOM imaging component using Vue.js and cornerstone.js to render high-resolution scans in-browser, focusing on lazy-loading and cache optimization. Optimized SQL stored procedures for a medical archiving system; improved patient record retrieval speeds during peak imaging hours. Created a Node.js utility script to batch process and migrate medical image metadata into a centralized repository; validated output with QA prior to production cutover.