Senior Agentic Systems Architect – TypeScript, .NET, MCP

Work Life Group

. Decompose legacy monoliths into agent-readable, modular systems with strict boundaries and single responsibility .

Posted 10/24/2026full-timeRemoteSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive expertise in software architecture and modernization of legacy systems, with a strong focus on API design, modular architectures, and agentic development. Proven ability to lead technical teams in high-ambiguity environments while enforcing best practices in code quality and system integrity.

Highest-signal resume keywords

Software ArchitectureTypeScriptAPI DesignAgentic DevelopmentTest-Driven Development

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Hard Skills

Software ArchitecturePlatform EngineeringTypeScript.NETNode.jsAPI DesignDistributed SystemsModular ArchitecturesTest-Driven DevelopmentCharacterization Testing

Soft Skills

Technical LeadershipClean Code BiasHigh-Ambiguity ComfortOwnership

Tools & Technologies

Model Context Protocol (MCP)AI-Consuming ToolsLegacy APIsServicesDatabases

Industry Keywords

SaaS TransformationsScale-UpsPE-Backed EnvironmentsRemote-First TeamsGlobally Distributed Teams

Tech Stack

Tools & technologies

Distributed SystemsJavaScriptNode.jsTypeScript.NET

About the role

Key responsibilities & impact

Decompose legacy monoliths into agent-readable, modular systems with strict boundaries and single responsibility
Lead incremental modernization using the Strangler Pattern and contract-driven interfaces
Enforce SOLID principles, Dependency Injection, and Hexagonal Architecture
Architect and maintain the agent context layer of Skills, Rules, and Commands
Build and operate Model Context Protocol (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
Review AI-generated pull requests for scalability, security, and maintainability
Mandate test-driven development and characterization testing during refactoring
Monitor and optimize agentic reasoning loops for cost, speed, and architectural integrity

Requirements

What you’ll need

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 (nice to have)
Background in SaaS transformations, scale-ups, or PE-backed environments (nice to have)
Comfort operating in high-ambiguity, high-ownership settings (nice to have)
Work from Eastern Europe and work US morning hours

Benefits

Comp & perks

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