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Kevin Saylor Ruschman

AI Systems Architect · Local-First AI Infrastructure, Bare-Metal GPU Clusters & Sovereign Systems
📍 Los Angeles, CA • 📞 (562) 713-2084 • ✉️ [email protected] • 🌐 krusch.dev • 💻 github.com/kruschdev • 👔 LinkedIn
Executive Summary

AI Systems Architect and Open-Source Maintainer specializing in local-first AI infrastructure, bare-metal multi-GPU clusters, PostgreSQL-backed agent state planes, and transactional execution harnesses. Creator of the 3-Tier Coding Agent MCP Ecosystem (krusch-context-mcp 71★ working memory, krusch-git AST symbol graphs, krusch-fs-mcp multi-node OS filesystem page memory), krusch-cascade-router (<15µs CPU routing gate), KruschLaw (0.00% False Support Rate legal RAG & statutory precedence engine), KruschBiz (relational contract graph & statutory compliance join), KruschNexus (span-true citation spine), and krusch-companion (sovereign local-first personal AI assistant). Proven record of replacing probabilistic prompt chains with hard ACID invariants, isolated Bubblewrap sandboxes, and atomic two-phase commit disk updates. Eagle Scout.

Core Technical Capabilities
Local-First AI & Agent Infrastructure: Model Context Protocol (3-Tier MCP Ecosystem), Autonomous Agent Harnesses (2PC Apply Journals), Multi-GPU Local Inference (vLLM Tensor/Pipeline Parallelism, Ollama), <15µs CPU Cascade Routing, Bubblewrap (bwrap) Sandboxing.
Relational State & Data Engineering: PostgreSQL 16 State Planes, pgvector (HNSW), Hybrid RRF + Cover-Density Search (ts_rank_cd), DBOS Durable Execution, SQLite WAL, ACID Invariants, Row-Level Security (RLS), ZFS Tiered Snapshots.
Bare-Metal Clusters & Linux Systems: Multi-Node Bare-Metal Linux Orchestration (Dual Xeon 40T, 57GB+ Pooled VRAM), Dedicated 10GbE Direct Storage/Compute Interconnects, Tailscale Mesh, Systemd, Docker, NVENC/VAAPI, Thermal & Power Budgeting.
Sovereign Document & Legal Intelligence: Layout-Aware OCR (Docling, TrOCR, 7 Parser Families), Page-and-Line Coordinate Spines, Statutory Precedence DAGs, Contract-vs-Statute Compliance Joins, Cryptographic Tombstone Purge.
Engineering Experience & Systems Architecture
Lead AI Infrastructure Architect · krusch Systems Lab
2024 – Present · Los Angeles, CA
  • Transactional Coding Harness (krusch & kd-Code): Engineered a PostgreSQL-backed coding harness and AI IDE bridge that replaces unconstrained LLM disk writes with hard ACID invariants. Model edits are staged as SHA-256 diffs, verified inside isolated Bubblewrap (bwrap) user namespaces, and committed to physical disk strictly via write-ahead 2PC journals.
  • 3-Tier Coding Agent MCP Ecosystem (krusch-context-mcp, krusch-git, krusch-fs-mcp): Authored and maintain a modular open-source MCP suite: krusch-context-mcp (71★ on GitHub, 5-verb working memory with e-0.01t temporal decay), krusch-git (Git DAG objects + recursive AST caller/callee symbol graphs in PostgreSQL 16), and krusch-fs-mcp (cross-node OS filesystem page trees with SHA-256 drift verification and secret-redacted .env indexing).
  • Sub-15µs CPU Cascade Routing & Sovereign Companion (krusch-cascade-router, krusch-companion): Architected syntactic CPU routing gates with cosine neural centroid escalation and speculative hedging (0.7883 score, 80.72% accuracy at $0.21/1K queries on RouteWorks RouterArena), alongside a 100% local-first voice-and-priority AI assistant (krusch-companion, 46/46 passing tests).
Lead Systems Architect & Creator · KruschBiz Contract Intelligence
2025 – Present · Los Angeles, CA
  • Confirmed-Edge Precedence Graph & Draft Isolation: Engineered a transitive DAG resolver with cycle detection and unexecuted draft isolation (execution_status='draft'), guaranteeing proposed relations remain advisory and unexecuted drafts cannot defeat executed agreements.
  • The Join (Contract vs. Statute Compliance): Architected cross-domain compliance evaluation (POST /conflicts/contract-vs-statute) testing controlling contract clause slots directly against statutory floors and ceilings (e.g. California AB 12 deposit limits, Civ. Code § 1954 notice floors).
  • Sovereign Gateway MCP Router: Deployed a 5-verb Gateway MCP router (ask_law, ask_biz, check_compliance, ingest, purge) strictly under <450 prompt tokens for local 7B/14B inference, persisting immutable ResolutionTraceRecord audits.
Principal Architect & Founder · KruschLaw & KruschNexus Platforms
2025 – Present · Los Angeles, CA
  • Local-First Legal RAG & Span-True Document Ingestion: Architected an air-gapped legal research engine (KruschLaw) and 7-parser layout-aware ingestion pipeline (KruschNexus, 100% citation accuracy & 96.2% span precision) powered by open-weight models (qwen2.5:14b, bge-large) with zero third-party cloud egress.
  • 0.00% False Support Rate on Labeled Grounding Benchmark: Engineered a two-pass assertion grounding scanner with quote spans, entailment scoring, and strict generation constraints that strip unretrieved bare citations, achieving 0.00% False Support Rate to eliminate CCP § 128.7 hallucination risks.
  • Versioned Statutory Graph & Cryptographic Purge: Built multi-hop statutory precedence graph resolvers with first-class as_of_date temporal traversal, programmatic explain_why_not_controlling diagnostics, and verifiable cryptographic purge protocols (execute_verifiable_purge) computing SHA-256 tombstones.
Bare-Metal AI Cluster & Infrastructure Architect · Krusch Sovereign Fleet Operations
2023 – Present · Los Angeles, CA
  • 8-Node Bare-Metal GPU & Storage Cluster: Designed, built, and operate an 8-node Linux bare-metal cluster combining Dual Xeon 40-thread servers (144GB+ ECC/DDR4 RAM) and 57GB+ pooled NVIDIA VRAM (Dual RTX 3060 24GB state host, Dual RTX 2080 Ti 22GB compute host, RTX 2080 Ti 11GB orchestrator) interconnected over a dedicated 10GbE compute/storage fabric and Tailscale mesh.
  • Production State Plane & Multi-GPU Inference: Host high-throughput vLLM tensor/pipeline parallel batch inference, dynamic Ollama VRAM pools, PostgreSQL 16 + pgvector HNSW databases, DBOS durable execution queues, and strict OS-drive protection policies with 99.9% uptime.
Technical Operations, Management & Applied Systems · Prior Experience
2014 – 2023
  • Applied Electrical & Mechanical Construction (Southern Vermont): Executed electrical panel modifications, conduit installation, and structural carpentry. Acquired foundational hands-on mastery of electrical loads, physical grounding, and structural constraints that inform enterprise bare-metal datacenter and server deployments.
  • Operations Supervisor (Wisconsin Bicycle Federation): Directed mobile repair crews in community outreach; managed multi-person teams, field logistics, mechanical diagnostics, and safety protocols.
  • Cafe Operations Manager & Partner (Aspen, CO): Built guest operations, POS systems, inventory supply chains, and staff training programs from inception to first-year profitability.
Education & Distinctions
Fullerton College — Associate of Arts (AA)
Graduated 2012 · Fullerton, CA
Eagle Scout & Senior Patrol Leader — Boy Scouts of America (Troop 883)
Earned 2010 · La Habra, CA

*Earned highest rank in scouting after 11 years of scouting leadership. Planned and executed a 100+ hour community service initiative directing a 9-person crew.