Haystack
AI Software Engineer
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A leading technology business specialising in cybersecurity and penetration testing is seeking a talented professional to join its permanent, fully remote team.
The Role
- Design, build and deploy AI agents for automated penetration testing, including planning, tool use, and reasoning over security findings
- Develop sandboxed cyber-lab and range infrastructure using containers and Kubernetes
- Deliver AI features from initial design through to production, including evaluations, guardrails, and monitoring
- Improve agent performance through prompt engineering, tool orchestration, evaluation, and token/cost optimisation
- Integrate security tools and enable agents to operate safely within defined scopes
- Lead code reviews and technical design sessions, supporting the development of other engineers
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What You'll Need
- Significant software engineering experience with a proven ability to build and scale production systems
- Strong Python development skills, with willingness to work with or learn Go
- Hands-on experience building and operating production AI applications using large language models and agentic frameworks
- Understanding of RAG, MCP, LangGraph, or similar technologies, including tool integration and prompt design
- Proficiency with Docker, Kubernetes, and isolated sandbox environments, with cloud experience (GCP advantageous)
- Knowledge of microservices, gRPC, API design, asynchronous messaging, and platforms such as Pub/Sub or Kafka
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What's On Offer
- Opportunity to work on autonomous security systems with meaningful real-world impact
- Permanent, fully remote position within the UK
- Engaging work focused on building intelligent AI agents for cybersecurity
Apply via Haystack today!
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