I am a self-taught Systems & Blockchain Architect with 20+ years of software engineering experience, specializing in mission-critical financial platforms, high-throughput distributed systems, and distributed ledger technology.

My engineering ethos is rooted in end-to-end type safety, zero-compromise security, and institutional-grade density: from Solana VM (SVM) smart contracts and cryptographic identity layers to asynchronous Actix/Tokio microservices and WebAssembly-driven command cockpits. I bridge deep domain expertise in financial regulations, cryptographic compliance, and real-time computing to turn complex architectural challenges into deterministic, rock-solid software.

• 🦀 End-to-End Rust Ecosystem: Architect of multi-tier codebases spanning ~200,000 LOC in pure Rust across backend microservices, custom WASM UI suites, and Solana SVM programs.
• ⛓️ Institutional RWA on Solana: Specialist in Solana Token-2022 extensions (synchronous on-chain Transfer Hooks, Permanent Delegates, Default Frozen ATAs), non-custodial DvP (Delivery vs. Payment) settlement escrows, and Merkle-tree yield distribution engines.
• 🏛️ Bespoke UI & WebAssembly: Creator of Titan V3, a zero-CSS-framework, type-safe UI architecture built in Rust → WASM with custom WebGL 3D rendering and financial charting engines.
• 🗺️ High-Precision Spatial Computing: Architect of Oxydryl, a hermetic spatial telemetry and geofencing engine utilizing Uber's H3 hierarchical hexagonal spatial index for physical asset verification and payment anomaly detection.
• 🧠 Native AI & Cognitive Systems: Implementation of declarative self-reflective reasoning (DSR / DSPy paradigms) in pure Rust for automated legal contract auditing, treasury runbooks, and compliance risk scoring.
• 🔬 Quantitative & Deep Tech R&D: GPU-accelerated algorithmic trading engines, real-time market anomaly analyzers, and quantum computing simulations (Qiskit).

Regulated Institutional RWA (Real World Asset) Tokenization & Settlement Infrastructure

• Architected an institutional B2B white-label platform converting physical assets (real estate, private debt, agricultural equipment, infrastructure) into regulated digital trusts settled on Solana.
• Implemented on-chain compliance via Token-2022 Transfer Hooks, enforcing automated, VM-level KYC/AML validation on every single transaction before state mutation.
• Built non-custodial DvP (Delivery vs. Payment) atomic escrow programs and Merkle-proof yield distribution engines with automated 5% protocol fee splitting.
• Designed a high-throughput Actix-web + Diesel ORM + PostgreSQL backend with strict Segregation of Duties (SOD) matrices, Dual-Approval desks, and Attribute-Based Access Control (Guardian).

Type-Safe UI Framework & Design System in Rust & WebAssembly

• Built an institutional-grade, zero-CSS-framework UI suite composed of 12 modular Rust crates running on Dioxus + WebAssembly.
• Features typed design token systems (Obsidian Ledger & Sovereign Light), reactive form validators (titan_validation), financial charting suites (titan_charts), and WebGL 3D views (titan_three).

Hermetic H3 Spatial Engine & Geofencing Suite

• Developed a high-performance spatial indexing engine leveraging Uber H3 (Resolution 9 parcel-scale hexagons) with concurrent DashMap storage.
• Enables real-time polygon boundary enforcement, dynamic geofence enter/exit telemetry, and spatial anomaly screening for capital movements.

Zero-Trust Security Perimeter & Cryptographic Identity

• Engineered a default-deny positive security model with hot-reloadable ABAC policy enforcement and mTLS banking integrations.
• Integrated privacy-preserving identity verification with cryptographic signatures and Zero-Knowledge Proof (ZKP) onboarding.

Quantitative Market Intelligence & Financial Automation

• TIB: Sub-second market intelligence and order-book anomaly detection engine optimized for modern GPU architectures.
• The Money Machine: Python-driven algorithmic asset allocation, execution strategy orchestration, and automated risk management.

1. If it compiles, it behaves: Using Rust’s expressive type system and strict invariant modeling to eliminate entire categories of runtime errors before deployment.
2. Security by Construction: Zero-trust architecture, strict segregation of duties (SOD), default-deny routing, and synchronous VM-level validation before capital moves.
3. Deterministic & Auditable State: Finite state machines (FSM), immutable transaction event logs, and Merkle proofs for all critical asset lifecycle transitions.
4. Operate Density over Ornamentation: Designing high-density, sub-millisecond operator cockpits focused on rapid situational awareness, clarity, and zero runtime latency.

I write about systems architecture, Solana VM engineering, full-stack Rust, and RWA tokenization:

• ✍️ Medium: medium.com/@dan.rsnr

Open to discussing distributed systems architecture, Solana Token-2022, RWA tokenization, or deep-tech engineering:

• 💼 LinkedIn: Daniel Rosner
• 🐦‍⬛ X: @DanRows