[Hiring] AI Engineer @Arena.im

Role Description

We’re looking for an AI Engineer to build and scale AI-powered experiences across Arena and MyAvatar.AI. You’ll work closely with Engineering, Product, and other AI-focused teams to design, implement, evaluate, and improve AI systems that power conversational, voice, and multimodal experiences.

• Build and integrate AI-powered features and services into production products.
• Develop LLM-powered applications using APIs, agents, RAG, tool calling, and structured outputs.
• Design and improve AI pipelines for conversational, voice, and multimodal experiences.
• Evaluate model quality, reliability, latency, and cost, and continuously improve AI performance.
• Build experiments and prototypes, then turn successful approaches into scalable production systems.
• Collaborate with Product and Engineering to translate business and user problems into practical AI solutions.

Qualifications

• 2+ years of experience in AI Engineering, Machine Learning Engineering, Software Engineering, or a similar technical role.
• Strong Python programming skills and experience building production software.
• Hands-on experience with LLMs, Generative AI, and AI APIs.
• Experience building applications with RAG, embeddings, vector databases, agents, or tool calling.
• Strong understanding of AI evaluation, prompt engineering, model behavior, and production trade-offs.
• Experience working with APIs, cloud infrastructure, and distributed systems.
• Strong problem-solving skills and ability to move quickly from prototype to production.
• Fluent English.

Requirements

• Experience with LangChain and LangGraph for building LLM applications, agents, and AI workflows.
• Experience with Node.js and TypeScript or other backend languages.
• Experience with AWS, serverless architectures, and cloud-native applications.
• Experience with real-time systems, WebSockets, GraphQL, or APIs.
• Experience with MongoDB, PostgreSQL, Redis, or other distributed data systems.

Benefits

• 🔥 Be a part of the team in Silicon Valley and join a global team.
• 💪 A team of exceptional engineers leading the cutting-edge AI Agents.
• 💶 Competitive salary package & benefits.
• ⛱️ 4 weeks of paid time-off.
• 📖 Learning and Development budget.
• 🚀 Key moment to join Arena in terms of growth and opportunities.
• 💻 Ability to put your stamp on real-world AI applications that serve millions of users.
• 📚 Fast-learning environment, entrepreneurial and strong team spirit.
• 🌍 Multiple nationalities: cosmopolite & multi-cultural mindset.
• 💆‍♀️ Our people matter, work-life balance is important at Arena.