Senior Agentic Systems Architect – TypeScript, .NET, MCP

This is a fully remote position, open to applicants in Montenegro.

📋 Description

• Transform a legacy codebase with over 10 years of history into a high-velocity, agent-operable architecture.

• Break down legacy monoliths into modular systems that are agent-readable, adhering to strict boundaries and single responsibility principles.

• Lead the incremental modernization process utilizing the Strangler Pattern and modern contract-driven interfaces.

• Implement SOLID principles, Dependency Injection, and Hexagonal Architecture effectively.

• Design and maintain the agent context layer featuring standardized Skills, Rules, and Commands.

• Develop and manage MCP servers that expose legacy APIs, services, and databases as secure, AI-consumable, and typed tools.

• Take ownership of contract-first API design bridging human intent with autonomous agent execution.

• Serve as the architectural gatekeeper for AI-generated pull requests.

• Enforce test-driven development and characterization testing during the refactoring process.

• Monitor and enhance agentic reasoning loops to ensure cost efficiency, speed, and architectural integrity.

⛳️ Requirements

• A minimum of 7 years in software architecture, platform engineering, or technical leadership roles.

• Demonstrated experience in modernizing large-scale, undocumented legacy systems.

• Extensive hands-on expertise in TypeScript, .NET, and Node.js.

• A solid foundation in API design, distributed systems, and modular architectures.

• Practical knowledge in agentic development, MCP, LLM tooling, or AI-assisted engineering.

• A preference for clean code, deterministic systems, and production-quality AI.

• Experience with remote-first or globally distributed teams is a plus.

• Background in SaaS transformations, scale-ups, or private equity-backed environments is also a plus.

• Ability to thrive in high-ambiguity, high-ownership environments.

• Familiarity with the Strangler Pattern, SOLID principles, Dependency Injection, Hexagonal Architecture, Model Context Protocol, contract-first API design, TDD, and characterization testing is essential.

🏝️ Benefits

• High ownership, flexibility, and impact.

• Opportunity to work across multiple products and technologies.

• Growth pathways available in engineering, product, and leadership roles.

• Remote-first work arrangement.