Solution Architect - LangGraph & Agentic AI

Belmont Lavan

LLM EngineerleadLondon, England, UKonsitefulltimeIT Services and IT ConsultingLangGraphAgentic AILLMsRAGAWSAzureGCPWorkflow enginesposted 16 Sep
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We are looking for an experienced Solution Architect with hands-on experience designing and deploying LangGraph-based AI solutions to lead the architecture of enterprise agentic AI platforms and applications.

You will work with business and technology stakeholders to identify high-value AI opportunities and translate them into secure, scalable, and production-ready architectures.

The role combines AI architecture, enterprise integration, cloud engineering, agentic AI, security, governance, and stakeholder leadership .

You will be expected to understand LangGraph at a practical level and be able to challenge architectural decisions, guide engineering teams, and ensure that AI solutions can operate reliably at enterprise scale.

Requirements

AI Solution Architecture

  • Lead the architecture and design of enterprise AI agent and agentic workflow solutions
  • Design LangGraph-based architectures for single-agent and multi-agent applications
  • Translate business requirements, processes, SLAs, security requirements, and technical constraints into solution architectures
  • Evaluate architectural alternatives and document key technical decisions and trade-offs
  • Define reusable architecture patterns for agentic AI solutions

Enterprise Agent Architecture

  • Design architectures incorporating:

+ LLMs + LangGraph + RAG + Enterprise data + APIs and business systems + Workflow engines + Human approval processes + Observability + Security and governance

  • Define appropriate boundaries between AI reasoning and deterministic business logic
  • Design state management, persistence, recovery, and long-running agent workflows
  • Determine when to use single-agent, multi-agent, or conventional application architectures

Cloud and Platform Architecture

  • Design scalable AI application architectures on AWS, Azure, or GCP
  • Define compute, networking, storage, API, security, and platform requirements
  • Design architectures suitable for enterprise-scale production workloads
  • Evaluate cloud services and AI platform capabilities based on performance, security, scalability, and cost
  • Work with platform engineering and DevOps teams to establish deployment standards

Integration Architecture

  • Design integration between AI agents and enterprise applications, APIs, databases, and SaaS platforms
  • Define secure mechanisms for agent tool access and business-system interactions
  • Design authentication, authorisation, secrets management, and access-control approaches
  • Ensure AI-driven actions are traceable, auditable, and appropriately governed

AI Security and Governance

  • Establish security and governance principles for enterprise AI agents
  • Address risks including:

+ Prompt injection + Data leakage + Unauthorised tool usage + Excessive agent permissions + Inaccurate or unsafe actions + Sensitive-data exposure

  • Define appropriate human-in-the-loop controls
  • Ensure solutions comply with organisational security, privacy, regulatory, and responsible-AI requirements

AI Evaluation and Observability

  • Define architecture for AI application monitoring and observability
  • Establish approaches for evaluating agent accuracy, reliability, latency, cost, and task completion
  • Define appropriate logging, tracing, metrics, and alerting
  • Establish operational processes for monitoring and continuously improving production agents

Stakeholder and Technical Leadership

  • Work directly with senior business and technology stakeholders to define AI strategies and roadmaps
  • Lead architecture workshops and technical design sessions
  • Communicate complex AI concepts and architectural trade-offs to technical and non-technical audiences
  • Provide technical direction to AI engineers, developers, data teams, and platform engineers
  • Review solution designs and ensure alignment with enterprise architecture standards
  • Mentor engineering teams and promote reusable AI architecture patterns

Required Experience

  • Significant experience in solution architecture, software architecture, AI architecture, or a related role
  • Hands-on experience designing and deploying LangGraph-based AI applications or agentic workflows
  • Strong understanding of LLM application architectures
  • Experience with enterprise AI/ML solutions in production
  • Strong understanding of RAG, tool calling, agent orchestration, and human-in-the-loop patterns
  • Strong experience with at least one major cloud platform: AWS, Azure, or GCP
  • Strong understanding of enterprise integration patterns and APIs
  • Experience with security, governance, observability, and operational requirements for production systems
  • Strong technical understanding of Python and modern software engineering practices

Desirable Experience

  • LangChain / LangSmith
  • Multi-agent architectures
  • Enterprise RAG platforms
  • Vector databases
  • Kubernetes
  • Event-driven architectures
  • Microservices
  • Infrastructure as Code
  • CI/CD
  • MLOps / LLMOps
  • AI security
  • Responsible AI
  • Large-scale enterprise transformation
  • Experience working directly with senior client stakeholders