Senior Agentic Systems Architect – TypeScript, .NET, MCP

• Transform a 10+ year legacy codebase into a high-velocity, agent-operable architecture
• Decompose legacy monoliths into agent-readable, modular systems with strict boundaries and single responsibility
• Lead incremental modernization using the Strangler Pattern and modern contract-driven interfaces
• Enforce SOLID principles, Dependency Injection, and Hexagonal Architecture
• Architect and maintain the agent context layer with standardized Skills, Rules, and Commands
• Build and operate MCP servers exposing legacy APIs, services, and databases as typed, secure, AI-consumable tools
• Own contract-first API design between human intent and autonomous agent execution
• Act as architectural gatekeeper for AI-generated pull requests
• Mandate test-driven development and characterization testing during refactoring
• Monitor and optimize agentic reasoning loops for cost, speed, and architectural integrity

• 7+ years in software architecture, platform engineering, or technical leadership
• Proven experience modernizing large, undocumented legacy systems
• Deep hands-on expertise with TypeScript, .NET, and Node.js
• Strong background in API design, distributed systems, and modular architectures
• Practical experience with agentic development, MCP, LLM tooling, or AI-assisted engineering
• Bias toward clean code, deterministic systems, and production-grade AI
• Experience with remote-first or globally distributed teams is nice to have
• Background in SaaS transformations, scale-ups, or PE-backed environments is nice to have
• Comfort operating in high-ambiguity, high-ownership settings
• Experience with Strangler Pattern, SOLID principles, Dependency Injection, Hexagonal Architecture, Model Context Protocol, contract-first API design, TDD, and characterization testing

• High ownership, flexibility and impact
• Work across multiple products and technologies
• Growth pathways across engineering, product and leadership
• Remote-first work arrangement