AI Application Architect

AI Application Architect 

Location:

London

Contract Type:

Temporary & Contract

Sector:

Software Development

Salary:

£550.00 - £650.00 Daily OUTSIDE IR35

Reference No.

BBBH493665

Purpose of the Role

This role will be responsible for designing AI & Machine Learning solutions on cloud-based platforms, explore emerging trends in AI, develop proof-of-concepts and engage with internal and external ecosystem to progress the proof of concepts to production.

Key Roles & Responsibilities:

  • This role focuses on consuming, integrating, and operationalizing advanced AI models—from Large Language Models (LLMs) to Small Language Models (SLMs) - into secure, governed, and scalable business solutions.
  • Governance by Design: enforce data-handling policies in code (prompt redaction middleware, retrieval allow-lists, per-use-case policies).
  • Prompt/Agent CI/CD: add evaluation gates (answer quality, safety) to pipelines; canary deploys with feature flags; automated rollback on drift.
  • Model Lifecycle: manage SLM/LoRA fine-tuning with consented datasets, synthetic augmentation policies, and model registry entries w/ lineage.
  • Observability: implement tracing (e.g., request → retrieved docs → model output → tool calls), latency & cost SLOs; alerts on hallucination/safety incidents.
  • Provider Abstraction: wrap OpenAI/Gemini/Azure OpenAI/Vertex behind an interface; capture provider/region, model/version, and quota routing.

Core AI/ML Skills:

    • Proficient in Python, PyTorch, TensorFlow, or similar frameworks
    • Experience with supervised, unsupervised, and reinforcement learning
    • NLP Expertise: Solid grounding in Natural Language Processing (NLP) concepts — tokenization, embeddings, semantic search, text classification, and summarization.
    • Generative AI & LLMs: Strong understanding of Large Language Models (LLMs) and Generative AI (GAI), with hands-on experience in LangGraph, LangChain, LlamaIndex, OpenAI APIs and Model Context Protocol (MCP) for building AI agents and conversational systems, Transformers, and Prompt engineering
    • Strong understanding of statistics, probability, and model evaluation techniques

Hands on Java, Cloud and Kubernetes principles,

    • Must have experience in architecting & development of applications on cloud infrastructure using different AWS services (or other public cloud like IBM Cloud, Azure, Google Cloud).
    • Experience with AWS Cloud paradigms like lambda, cloudfront, s3
    • Experienced with different forms of architectures like SOA, Microservices, EDA ….
    • Responsive Web applications, Web Services and batch applications development
    • Application development tools and frameworks like maven, ant, check style, PMD, fortify, junit, SONAR, SOAP UI, REST Assured etc.
    • Hands on with Java/J2EE design patterns

Must-Have Skills

  • Define and enforce AI data-handling policies (PII/PCI/GDPR) across prompts, retrieval, logs, and analytics. Implement redaction/masking, tenant isolation, model risk tiers, and provider due diligence. Own evaluation and approval workflows for prompt/model changes, with audit-ready lineage and retention controls.
  • API Consumers: integrate ChatGPT (OpenAI) and Gemini via provider SDKs with fallback logic and request/response schemas.

Good-to-Have Skills

  • Broader understanding of machine learning algorithms (supervised, unsupervised, reinforcement learning).
  • Exposure to multimodal AI (text + vision, speech).
  • Data engineering & analysis skills: ETL pipelines, feature engineering, EDA.
  • Familiarity with MLOps/DevOps (CI/CD pipelines, monitoring, retraining).
  • Understanding of knowledge graphs, embeddings optimization, and enterprise search integration.
  • Strong collaboration and communication skills to work with cross-functional teams and explain AI concepts to stakeholders.
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