Systems Architect | Senior Backend Engineer | Privacy Advocate

Experienced engineering architect with 18+ years of production experience designing high-throughput distributed systems, robust enterprise backend platforms, and relational database architectures. Passionate advocate for local-first software, zero-upload data privacy, and pragmatic engineering.

• Backend Core: Java (Spring Boot, Spring Cloud, J2EE) | Python (FastAPI, Flask) | Go (Golang)
• Databases & Storage: PostgreSQL (Query optimization, indexing, spatial/PostGIS, deadlocks) | MySQL | Redis | Oracle
• Data & Middleware: Redis Streams | Apache Kafka | EMQX (MQTT) | RabbitMQ | Telemetry & ETL Pipelines
• Architecture & AI: High-Concurrency Microservices | Multi-Agent Systems (LangGraph) | Docker Sandboxing | Local-First Design
• Frontend & Full-Stack: TypeScript | JavaScript | React | Vue | Next.js

Currently designing and maintaining local-first developer tools under SealKit:

• pdfseal: High-performance, 100% offline-first client-side document processing & privacy engine.
• dbseal: Local-first production database subsetting, data masking & schema-drift synchronization toolkit.

• Local-First & Privacy: Sensitive data should stay on the user's machine whenever possible. Zero unnecessary cloud dependency.
• System Robustness: Obsessed with concurrency safety, clean schema design, observable data pipelines, and elimination of database deadlocks.

• Open-Source Org: @sealkit-org
• Website: sealkit.org