Microservices, API design, Gdpr, AWS, Azure, Gcp, Sso, Azure Cognitive Services, Vector stores, Google Gemini, ElevenLabs, LLM APIs, Speech and multimodal, Weaviate, containerisation, Azure AI Search, Pinecone, tenant isolation, RBAC implementation, Security encryption standards, Cloud platforms, OpenAI GPT-4, Anthropic Claude, HeyGen