**Experienced AI Chat Assistant & Knowledge Engineering Intern – AI-Powered Knowledge Management & Cybersecurity Innovation**

Are you an ambitious and innovative individual with a passion for AI, cybersecurity, and knowledge management? Do you thrive in fast-paced environments and enjoy collaborating with cross-functional teams? If so, we invite you to join arenaflex, a leading cybersecurity scale-up pioneering AI-driven security analytics, as an AI Chat Assistant & Knowledge Engineering Intern.

• *About arenaflex**

arenaflex is a Swiss-rooted cybersecurity scale-up that empowers enterprises to monitor, detect, and respond to threats with unmatched speed and accuracy. Our flagship solution, arenaflex.NDR, is a cutting-edge security analytics platform that protects IT, OT, and IoT networks. Born from ETH Zurich innovation, we combine Swiss excellence with a flexible, remote-first, and collaborative culture, supporting passionate professionals devoted to solving cybersecurity challenges and driving continuous innovation.

• *Your Role at arenaflex**

As an AI Chat Assistant & Knowledge Engineering Intern at arenaflex, you will play a crucial role in designing, building, evaluating, and continuously improving an internal AI assistant that supports engineers, security analysts, and business stakeholders. You will also take a leading role in organizing and transforming our internal documentation into structured, machine-consumable knowledge assets that power high-quality responses. You will work closely with an arenaflex mentor in the field of AI and collaborate with subject matter experts across Security Engineering, Product, Customer Success, and Technical Writing.

• *Key Responsibilities**

• AI Chat Assistant Development (≈50%):
+ Extend and refine arenaflex's internal LLM-powered assistant (initially for internal use; potential future externalization).+ Build and iterate on a retrieval-augmented generation (RAG) stack: document ingestion, chunking, embeddings, vector search, ranking, answer synthesis.+ Design and run offline & human-in-the-loop evaluation experiments (precision/recall of retrieval, response helpfulness, hallucination rate, latency & cost metrics).
• Knowledgebase & Documentation Engineering (≈50%):
+ Add missing technical content to the existing guides relevant for improving the LLM's accuracy and ability to reason about the content.+ Rewrite or refactor technical material for clarity, consistency, and LLM-friendly structure (FAQ patterns, Q&A primitives, procedure steps).+ Contribution guidelines: Draft lightweight authoring standards so ongoing documentation remains assistant-ready and user-friendly.

• *What You Can Expect from Us**

• An innovative scale-up environment with leading-edge security software and a fast-growing European presence.
• Autonomy, flexibility (remote options), and trust, empowering you to shape your role and contributions.
• Hands-on collaboration with Security Experts, Data Scientists, and Business Professionals from across Europe.
• Clear growth opportunities and support for personal and professional development.
• Open, diverse, and inclusive culture committed to independent thinking and work-life balance.

• *Requirements**

• We are looking for a proactive, self-motivated, and enthusiastic AI enthusiast who is comfortable in a high-paced start-up environment and who shares our values.
• Certain requirements and skills to establish a good person-job-fit:
+ An enthusiastic student who enjoys research, has strong communication skills, and the ability to work independently and proactively.+ Currently pursuing or holding a Bachelor's or Master's degree in Computer Science, AI, Data Science, or a related field.+ Ability to reorganize messy information into structured, navigable, well-labelled content.+ Strong written communication in English; clear, concise, audience-aware writing.+ Proficiency in Python and experience with at least one AI/LLM application framework such as LangChain, Haystack, Semantic Kernel, etc. or strong willingness and demonstrated capacity to learn quickly.+ Strong interest in cybersecurity.+ Basic understanding of embeddings, vector databases, or information retrieval concepts.+ Strong analytical and problem-solving skills with an interest in technical and organizational innovation.+ Comfortable using Git/GitHub/GitLab for collaborative development.

• *Why Join arenaflex?**

• Be part of a leading cybersecurity scale-up that is shaping the future of AI-driven security analytics.
• Collaborate with a talented team of experts from across Europe.
• Enjoy a flexible, remote-first, and collaborative culture that supports your personal and professional growth.
• Develop your skills and expertise in AI, knowledge management, and cybersecurity.
• Contribute to innovative projects that have a real impact on the industry.

• *How to Apply**

If you are passionate about AI, cybersecurity, and knowledge management, and are looking for a challenging and rewarding internship opportunity, please submit your application, including your resume, cover letter, and any relevant projects or portfolios, to [arenaflex recruitment portal]. We look forward to hearing from you!