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Sam LinfieldSL

Sam Linfield

AI Solutions Architect & Lead Engineer

€984/day
Leeds, GB
3-7 years

Average response time: 1 hour

About Sam

AI Solutions Architect and hands-on lead engineer building production-grade GenAI workflows on Google Cloud (Cloud Functions Gen2, Cloud Tasks, Firestore). I design and ship agentic research/ETL systems with strong reliability patterns (rate-limit handling, retries/backoff, idempotency), cost governance (token/cost accounting, model routing), and auditable provenance (source traceability). Currently in pilot/testing phases with big 4 consultancies. Founder-operator background with experience taking systems from prototype to scalable, monitored production. I specialise in AI-augmented development, allowing me to architect and ship complex enterprise systems solo in < 6 months that typically require a 10+ person engineering team to deliver in 12.


  • English

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • ecozeAI
    Founder, AI Solutions Architect & Lead Engineer
    TECH
    January 2024 - Today (2 years and 5 months)
    Leeds, United Kingdom
    Building the core platform for an automated carbon-data + supply chain mapping engine and evidence-backed research workflows for enterprise use cases.

    Architected and implemented serverless GenAI workflow orchestration on GCP (Cloud Functions Gen2 + Cloud Tasks + Firestore) to run long-running, multi-step research tasks reliably at scale.
    Built a unified multi-provider LLM runtime on Vertex (Gemini + OpenAI-compatible models) including OAuth-based auth, streaming response parsing, and shared token/cost accounting.
    Implemented a resilient Deep Research client with stream parsing, resumable reconnection, and post-completion polling to guarantee outputs and usage in long-running workflows.
    Engineered reliability under API volatility: robust retry policies to reduce failures and operator intervention.
    Built token and cost governance to track cost-per-transaction and apply model-routing policies (cheap-first then escalate) to maintain predictable unit economics.
    Developed an evidence pipeline: harvest citations from grounding metadata, unwrap redirect URLs, and generate per-URL usage annotations to support audit/assurance review.
    artificial intelligence AI Automation
  • ecozeAI & University of Bristol (Faculty of Engineering)
    Technical Research Lead (Joint
    TECH
    June 2024 - August 2025 (1 year and 2 months)
    Bristol, UK
    Spearheaded a joint R&D initiative to standardise retail product data and improve classification quality.

    • Defined technical roadmap and supervised MSc Data Science research to process and standardise 75,900+ heterogeneous product entries from major UK retailers.
    • Oversaw a three-tier classification system (rule-based NLP, statistical models, LLM-assisted validation) to identify recyclable packaging materials, achieving 97% accuracy (as reported by the project).
    • Translated research outputs into commercially viable, scalable GCP serverless workloads.
    Node.js Python External API integration artificial intelligence
  • ECOZE (B2C App)
    Founder & Senior Full Stack Engineer
    TECH
    July 2021 - December 2023 (2 years and 5 months)
    Leeds, United Kingdom
    Built a consumer sustainability product and subsequently pivoted core IP and learnings into enterprise workflows.

    • Built an automated travel tracking engine using smartphone telemetry (accelerometer/gyroscope/GPS) to infer transport mode (e.g., train vs car) with minimal user input.
    • Implemented purchase tracking pipelines to ingest financial data and match transactions to product databases to estimate personal footprint.
    Python Cloud Integration Digital Transformation Flutter Flutterflow

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Education

  • BSc (Hons)
    University of Bath
    BSc (Hons)

Skill set

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