Artificial Intelligence Engineer

TechByte Talent Ltd

London Area, United KingdomfulltimeTechnology, Information and Media and IT Services and IT Consultingposted
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Agentic AI Engineer The Opportunity We're working with a fast-moving organisation building production-grade agentic AI systems not prototypes, not proof-of-concepts, but reasoning agents that use tools, maintain state, retrieve knowledge, execute multi-step workflows, and know when to escalate to a human. This is a rare chance to own the full lifecycle of agentic AI in production: architecture, orchestration, tool integration, evaluation, safety, observability, and cost optimisation across Azure OpenAI, Anthropic, open models, and provider-native agent SDKs. What You'll Do * Design and operate production agentic AI systems with robust tool-use, memory, and multi-step reasoning * Select and integrate LLMs and agent frameworks (LangGraph, LangChain, LlamaIndex, Semantic Kernel, AutoGen, CrewAI, or custom orchestration), balancing latency, cost, quality and compliance * Engineer reliable tool-use patterns: function calling, structured outputs, MCP servers, permissions, retries, sandboxing, and audit trails * Build retrieval and context-engineering pipelines: RAG, hybrid search, re-ranking, short/long-term memory, and context budgeting * Own agent evaluation and safety: golden datasets, red-teaming, prompt-injection defences, PII controls, and production feedback loops * Optimise for cost and performance: prompt caching, token budgeting, model routing, and batching * Deploy agents as reliable services with CI/CD, canary releases, rollback plans, and provider failover What You'll Bring * 4+ years in software, ML, or production AI engineering, with proven experience shipping reliable services (not just prototypes) * 2+ years working hands-on with LLMs prompt/context engineering, structured outputs, function calling, RAG, evaluation, and production monitoring * Strong Python skills: async programming, type hints, Pydantic-style validation, API design, and secure, maintainable service architecture * Deep knowledge of agentic patterns: ReAct, plan-and-execute, reflection, state graphs, multi-agent orchestration, and human-in-the-loop design * Experience with vector databases and retrieval systems (Pinecone, Weaviate, FAISS, Azure AI Search) and evaluation/observability tooling (LangSmith, Braintrust, Application Insights) * Understanding of AI security and governance: prompt injection, data exfiltration, sandboxing, and compliance-ready audit trails Nice to have: MCP server authoring, Agent-to-Agent (A2A) protocols, multimodal agents, Arabic/UAE localisation experience, regulated-industry AI governance, and local inference (vLLM/TensorRT-LLM)