AI Engineer and Principal Software Engineer with over 20 years of experience building high-performance, scalable systems. Specializes in local-first AI applications, Retrieval-Augmented Generation (RAG), and vector search platforms. Strong background in ASP.NET Core, distributed systems, and large-scale data processing. Known for delivering production-ready solutions that optimize for performance, cost, and maintainability.
- Design local-first LLM solutions, vector search pipelines, and developer productivity tooling
- Build enterprise-grade .NET platforms that emphasize simplicity and long-term reliability
- Deepen expertise in low-level Linux, networking, and virtualization (pfSense/OPNsense, Proxmox)
- Continue modernizing ecosystems from legacy .NET → ASP.NET Core
- Master fully automated deployment ecosystems using Docker & CI/CD
- Expand into developer tooling for Stripe, gRPC, and Wallet integrations
- Contribute more open-source utilities around performance, data ingestion, and multi-tenant architectures
- Docker
- Ollama
- OpenAI
- React
- ASP.NET Core 8-10, C#, EF Core 8-10
- REST APIs, gRPC, Webhooks
- Multi-Tenant Systems, Middleware, Interceptors
- Channels, Background Services (Hosted Services)
- Stripe (PaymentIntents, Subscriptions, 3DS, SetupIntents, Off-Session Billing, Application Fees)
- Apple Wallet (PassKit)
- Google Wallet Objects API
- OAuth 2.0, HMAC auth patterns
- SQL Server 2012–2022
- Performance tuning, indexing, MERGE optimization
- Large-scale ingestion (7GB–15GB+ CSV pipelines)
- ETL pipelines, BCP automation, streaming architectures
- Docker & Docker Compose
- Linux server administration
- Proxmox virtualization
- Secure environment configuration & containerized ecosystems
- JavaScript, Bootstrap 5
- jQuery DataTables (dynamic modals + AJAX CRUD)
- Lightweight and maintainable UI patterns
Semantic Code & Document Query Platform. Local-first AI system using embeddings, vector storage, and natural-language querying.
Designed tenant-aware routing, scoped DbContexts, and middleware-based tenant resolution — enabling clean separation of customer data and behavior.
PaymentIntents, Subscriptions, webhooks, retries, SetupIntents, 3DS, and async pipelines using Channels + Hosted Services.
Delivered secure, dynamically updating passes for loyalty, membership, and credential systems.
Capable of processing 7–15GB CSV files using chunked streaming and dynamic schema execution.
Converted aging .NET Framework systems into high-performance ASP.NET Core platforms with dramatic reliability/performance improvements.
DataTables + Bootstrap 5 + AJAX CRUD → highly maintainable, fast-to-extend admin dashboards.
- LinkedIn: https://linkedin.com/in/chrishenyard
- Portfolio: https://chrishenyard.github.io
- Email: chenyard@outlook.com
- Local-first LLM solutions
- High-performance data ingestion samples
- Stripe workflow utilities
- gRPC authentication patterns (API key + HMAC)
- SQL tuning examples and benchmark patterns
- Modern ASP.NET Core architecture templates
- Experiments with Proxmox, pfSense, and Linux networking
- Tools for Apple Wallet & Google Wallet integrations
