Software Engineer - AI Systems at XBOW

Posted on November 13, 2026

Industry: Cybersecurity

Job Type: Full-time

Experience Level: Mid-Senior Level

Job Description

XBOW is hiring a Software Engineer - AI Systems to design prompt flows and orchestration that coordinate large language models with real security tasks. The full-time role is remote across Europe and the Americas, and it covers production TypeScript systems, evaluation, and monitoring for the autonomous security platform.

Responsibilities

• Build LLM-powered software by designing prompt flows and orchestrations that perform without false positives.
• Architect a production-grade AI software stack that is testable and maintainable.
• Design experiments and evaluation frameworks, and analyze results at scale.
• Work with AI, security, frontend, and backend teammates on end-to-end systems.
• Own projects from ideation and experimentation through deployment and production monitoring.
• Research how new LLM capabilities can make the system better and faster.

Requirements

• Strong experience building software around LLMs, including prompting, agentic orchestration, fault tolerance, and mixing model output with hard-coded logic.
• Strong software engineering skills for production systems that run reliably and can be maintained.
• Experience with TypeScript, or a proven ability to learn a new language quickly.
• Structured, independent problem solving, including working with incomplete information and testing hypotheses quickly.
• Comfort with a fast-moving environment that mixes startup delivery with research.
• Master's degree or equivalent in computer science, math, physics, or machine learning.
• Nice to have: offensive security experience, or applying LLMs in a security context.
• Nice to have: open-source work on LLM applications or frameworks, a PhD, or startup experience.

Benefits

• Base salary of $100,000 to $350,000, open across levels, plus equity.
• Remote work, with support to travel and meet colleagues in person.
• Full-time contract.