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! Apply for this job