Agentic Systems Engineer – TypeScript, .NET, MCP

Work Life Group

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

Posted 10/24/2026full-timeRemoteMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates 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 initiatives and enforce best practices in software engineering.

Highest-signal resume keywords

Software ArchitectureTypeScript.NETAPI DesignAgentic Development

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Legacy System ModernizationContract-Driven InterfacesSOLID PrinciplesDependency InjectionHexagonal ArchitectureTest-Driven DevelopmentCharacterization TestingDistributed SystemsModular ArchitecturesProduction-Grade AI

Soft Skills

Technical LeadershipHigh-Ownership MindsetComfort in High-Ambiguity Settings

Tools & Technologies

Node.jsMCP ServersAI-Consumable ToolsLLM Tooling

Industry Keywords

SaaS TransformationsScale-UpsPE-Backed EnvironmentsRemote-First 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 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

Requirements

What you’ll need

4+ years in software architecture, platform engineering, or technical leadership
Proven experience modernizing large, undocumented legacy systems
Strong 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 is nice to have
Ability to work US morning hours (Scrum) from Eastern Europe

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
Full-time contract