Overview
Senior full-stack and AI engineer with 12+ years shipping scalable products across fintech, healthcare, e-commerce, and enterprise SaaS.
I focus on end-to-end delivery: robust architecture, thoughtful UX, and measurable impact. My default lens is that technology should earn its place through business outcomes — performance, reliability, and clarity for users and stakeholders.
Core competencies
Full-stack architecture
Microservices, REST and GraphQL APIs, and rich frontends with React, Next.js, Vue/Nuxt, and mobile stacks where needed. Backend experience across Node (Express/Nest), Django, FastAPI, and PHP ecosystems. Strong data modeling with PostgreSQL, MySQL, MongoDB, and ORMs (TypeORM, Prisma, Sequelize). Cloud-native delivery on AWS, Vercel, Firebase, Docker, and CI/CD — with a track record of cutting latency and tightening query paths under load.
AI and machine learning
Pipelines through to production: data prep, training (TensorFlow, PyTorch, scikit-learn), and LLM-powered features (OpenAI, LangChain). Experience shipping NLP and predictive workloads that reduced manual work and supported large user bases, with solid Python, NumPy, and Pandas fundamentals.
Blockchain and Web3
Smart contracts (Solidity), dApp integration, and connecting on-chain systems (Ethereum, Polygon, Avalanche and similar) to conventional backends and oracles where projects demand it.
Remote-first collaboration
Async-first habits, clear written communication, and comfortable leading or contributing across time zones on long-running, complex initiatives.
What I deliver
- High-performance systems — APIs and UIs tuned for responsiveness under real traffic.
- AI-driven automation — workflows that remove repetitive manual work where models fit the problem.
- Scalable architecture — designs that grow from early traction to serious scale.
- Secure, compliant builds — including regulated domains (e.g. healthcare) and careful treatment of sensitive data.
- Technical leadership — mentoring, roadmaps, and alignment with product and stakeholders.
Open to senior and lead roles, contracts, and long-term partnerships. If you are building something ambitious, I would be glad to hear from you.
Services
I partner with teams to ship fast, scalable products with clean architecture, measurable outcomes, and long-term maintainability.
End-to-end web and API delivery with modern frameworks and cloud deployment.
LLM features, ML pipelines, and production integration with your product stack.
Analysis, ETL-style pipelines, visualization, and modeling where it supports the product.
Predictable milestones, clear communication, and pragmatic scope management.
Technical skills
- 100 React.js/Next.js Expert
- 85 Angular / AngularJS Advanced
- 85 Vue/Nuxt Advanced
- 95 Styling & UI (Tailwind, MUI, AntD, Chakra UI, Radix UI, Bootstrap) Expert
- 85 Flutter / React Native / Ionic / Kotlin Advanced
- 90 ORM (TypeORM/Prisma/Sequelize) Advanced
- 80 AI (TensorFlow/PyTorch/Keras/Scikit-learn) Proficient
- 85 Data Science (ML/LLMs/Mathematics & Stats/Scraping) Advanced
- 100 Node.js/Express/Nest Expert
- 95 Django/Flask/FastAPI Expert
- 90 GraphQL/Hasura Advanced
- 85 Laravel/Yii/Magento Advanced
- 80 Phoenix/Elixir Proficient
- 95 Database (PostgreSQL/MySQL/MongoDB/Oracle) Expert
- 80 Cloud & DevOps (AWS, Heroku, Firebase, Cloudflare, Docker, CI/CD) Proficient
- 70 Web3.js/Blockchain Proficient
Languages
- 90 English (Fluent & Working Proficiency) Advanced
Resume
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Working History
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Lead DeveloperCreate
Built and scaled multi-tenant platforms integrating Generative AI and Web3, shipping reliable product experiences with Next.js, GraphQL, Prisma, and optimized PostgreSQL/MongoDB query paths.
- Reduced API response time from ~800ms to ~150ms via caching and query optimization.
- Implemented wallet integration supporting 5 blockchain networks.
- Led AI feature rollout that increased user engagement by 35%.
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Team LeadBuddi AI
Led delivery of an AI-driven medical billing platform processing $50M+ annually, with automated pipelines (Python/Node) and HIPAA-focused security practices.
- Designed an NLP pipeline to automate claim categorization, saving 500+ hours annually.
- Mentored a team of 5 engineers and established architecture and quality standards.
- Deployed ML models achieving 94% claim prediction accuracy to reduce payment delays.
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Senior Frontend DeveloperDivergence Neuro
Owned frontend delivery for a neuro-feedback data platform with complex real-time visualizations, focusing on performance, state management, and reliable UX.
- Optimized rendering to reduce page load from ~3s to ~800ms.
- Implemented WebSocket integration for real-time data streaming.
- Recognized for instrumental work on core product features.
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Full-stack DeveloperWork Well Together
Built a psychological assessment platform with a data-heavy questionnaire engine (Django + React), using serverless components for scalable processing and analytics.
- Designed serverless architecture processing 100K+ records in real-time analytics.
- Implemented ML-based scoring algorithms for assessments.
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Team LeadKR Soft
Led cross-functional delivery for 15+ client solutions, improving engineering velocity through better CI/CD practices, testing, and modern frontend standards.
- Led architecture decisions across 5 high-impact projects.
- Introduced automated testing strategy reaching 80%+ coverage.
- Reduced deployment time from hours to minutes via CI/CD optimization.
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Full-stack DeveloperCloudone
Delivered web applications across multiple stacks, focusing on modular UI, scalable backend services, and dependable uptime for fast-moving teams.
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Education History
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Zhejiang University
2011 – 2015Master of Science: Mathematics & Computer Science. Specialized in computational mathematics and algorithmic theory, forming a rigorous foundation for advanced data modeling, cryptography, and applied AI.
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Specialized Mastery
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DeepLearning.AI / Coursera
CertificationAdvanced neural networks and generative AI architectures.
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Udacity Nanodegree
NanodegreeBlockchain architecture and data science for enterprise.
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Codecademy Professional
ProfessionalFull-stack engineering and smart contract development (Solidity).
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Technical leadership
OngoingContributions to Towards Data Science and Web3 research.
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OSS and documentation
OngoingContinuous research on Next.js, OpenAI API, and Ethereum EIPs.
Recommendations
CPO of Hamilton Pay
It has been a pleasure to work with Ping Zhao. He is a gem of a developer and a true asset to any team. While he is excellent in his technical capabilities, he stands out because of his calm demeandor, team spirit, and eagerness to learn. I wish him all the best and know for sure that any team that he works with will be lucky to have him!
Owner of 4K Gallery LLC
Ping and I have worked on multiple projects together. Ping is great self starter, as well as a great listener of directions. He pays great attention to detail. Ping is capable of delegating tasks to others on a team in a lead position. Very happy to be working closely together.
Head of Support - 5Loyalty Ltd.,
I've worked with Ping Zhao with quite some time and I think his skills is something that he can boast. He can meet deadlines set by our clients & has positive attitude towards work. He is also very keen to detail & is really good at what he does. He has outstanding skills especially in building mobile apps using IONIC React, NodeJS, Django/Django Rest Framework! You have done an excellent job with 5Loyalty!!!
CEO of Hamilton Pay
Ping Zhao worked with me for building the initial version of HamiltonPay. We were working on a technically demanding product to combine multiple payments into one checkout flow. We had to work across multiple time zones and significant technical challenges. He is one of the best engineers I have worked with.
Portfolio
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Clinical Research Management Platform
Impact: 500+ physicians, $10M+ research enabled This site is no longer online
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Enterprise Furniture E-Commerce Platform
Impact: 40K+ monthly active users, $2M+ GMV This site is no longer online
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Healthcare Payment Automation
Impact: $100M+ annual payment volume, 30K+ patients This site is no longer online
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Infrastructure for Institutional Credit
Contact
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Founder, CEO, Divergence Neuro
Great work ethic, very skilled React developer. Attention to detail and pleasant to communicate with. Ping was instrumental in building of our web frontend experience with major features that are complex. He is smart and patient, and does great work!