AI Engineer at YLD

YLD is a software engineering and design consultancy with offices in London, Lisbon, and Porto. They are seeking an AI Engineer to join their Lisbon office. Key Responsibilities: - Develop AI-powered features meeting client customer needs - Integrate AI models, optimize prompts, and improve systems via CI/CD - Collaborate on traditional engineering and AI initiatives - Present work from experiments through production deployments - Participate in client events and knowledge-sharing activities Required Skills & Experience: Core Programming & AI: - Strong JavaScript, TypeScript, Python experience - Advanced GenAI/LLM expertise: RAG, embeddings, vector search, prompt engineering, evals - Fine-tuning: LoRA/QLoRA, instruction tuning, RLHF - Agentic architecture and multi-agent systems - LLM frameworks (LangChain, LlamaIndex, CrewAI, Mastra) Infrastructure & DevOps: - CI/CD pipelines, IaC tools (Terraform, CloudFormation, CDK) - AWS, Azure, GCP for GenAI workloads - Docker, Kubernetes for AI applications Data & Databases: - Vector databases (Pinecone, Weaviate, Chroma, Qdrant) - PostgreSQL, Neo4j - RAG pipeline design Frontend & APIs: - React or modern frameworks - API design for LLM services - Real-time chat and streaming Performance & Reliability: - High-performance, scalable AI applications - LLM cost optimisation, token management, and caching - Comprehensive testing practices Benefits: - Company private healthcare - 25 days annual holiday - EUR 2,000 training/conference allowance - EUR 300 hardware allowance - Enhanced maternity/paternity leave (6 months) - Wellness support - Company laptop - Discretionary bonus - Referral schemes Recruitment Process: Two-stage interview (talent team screening, technical interview with senior developers).