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Software Engineer - AI Agent Guardrails

European Tech Recruit — Germany · Posted ~10 hours ago

Full-time Remote Visa History ✓

Skills

software engineering Node.js Python runtime instrumentation low-latency systems application security AI agent security sensor architecture protocol integration MCP LLM SDKs web frameworks

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Summary ✨ AI‑Generated

Join a remote software engineering team building proactive runtime security for AI agents. You will design low-latency instrumentation across Node.js and Python, create hooks for emerging protocols and AI SDKs, and generate real-time execution signals that can be used to detect and block malicious behavior.

Highlights

High-impact software engineering opportunity at the intersection of cybersecurity and AI. You will build low-latency runtime instrumentation, expand integrations with emerging AI protocols and SDKs, and help create proactive protection against malicious agent behavior.

Description

Software Engineer — Agent Guardrails Location: Germany (Remote) Company: Early-Stage Cybersecurity Startup A well-funded cybersecurity startup founded by experienced security entrepreneurs is hiring a Software Engineer to own its language-runtime sensors. The company is fundamentally changing application security by moving organizations away from reactive vulnerability management toward proactive, real-time protection at the runtime level. In this role, you will build the instrumentation layer that hooks directly into key packages, generating real-time events for the core policy engine to monitor and block malicious AI agent behavior as it happens. What You Will Own Sensor Architecture: Design and build low-latency runtime instrumentation across Node.js and Python to track AI agent execution paths in real time.Ecosystem Expansion: Pioneer hooks and interceptors for emerging protocols (such as MCP), LLM SDKs, web frameworks, and new execution transports.Proactive Adaptation Systems: Engineer automated systems and harness tooling to detect, test, and automatically surface upstream SDK shifts before they impact runtime behavior.Performance Optimization: Enforce strict execution overhead budgets to ensure guardrails never compromise host agent execution speed. What You Need Production Mastery (Node.js & Python): Proven experience with dynamic module loading, monkey-patching, and low-level runtime interception across both ecosystems.Systems & FFI Fundamentals: Strong background bridging managed runtimes into compiled binaries (Rust, C, C++), alongside a solid grasp of memory management, thread safety, and dynamic linking.Async Execution Expertise: Deep understanding of non-blocking control flow (Node event loop, Python asyncio) to ensure security hooks never block host applications.Resilient System Design: Track record of building stable software on top of fast-evolving third-party SDKs and uncooperative runtimes.Diagnostic Mindset: Natural ability to hunt down race conditions, memory leaks, and silent failures across runtime boundaries. Interested? Apply directly through LinkedIn, or send your CV to george@eu-recruit.com By applying to this role you understand that we may collect your personal data and store and process it on our systems. For more information please see our Privacy Notice https://eu-recruit.com/wp-content/uploads/2024/07/European-Tech-Recruit-Privacy-Notice-2024.pdf