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Jeremiah KrageJK

Jeremiah Krage

Conversational AI | Agent Design, Behaviour & Eval

€521/day
London, GB
8-15 years

Average response time: 1 hour

About Jeremiah

I help teams design and improve customer-facing AI agents so they perform reliably in real-world use.

Many AI products work in demos but break down in production: inconsistent responses, unclear fallbacks, and behaviour that shifts over time. This creates friction, reduces trust, and impacts retention and conversion.

I work across product, engineering, and CX to make AI systems usable, predictable, and aligned with business goals.

Typical projects include:
• Designing conversational flows, guardrails, and interaction patterns
• Identifying failure modes through conversation analysis and testing
• Building evaluation frameworks (including golden sets) to track quality over time
• Improving onboarding, fallback logic, and escalation paths
• Translating brand and product intent into consistent AI behaviour

Recent work:
• Designed behavioural architecture and evaluation systems for a production AI assistant (Vessa.ai)
• Built modular persona and evaluation frameworks for EmotionMachine.ai
• Developed GTM and outbound systems generating above-benchmark engagement (Mentalwell: 29.9% open rate, 17.1% CTR)

I typically work with:
• Early-stage startups building AI products
• Product teams shipping conversational interfaces
• Agencies implementing AI for client experiences

If you are building or scaling a customer-facing AI agent and want it to behave consistently and perform in production, I can help.
  • English

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Vessa.ai
    AI Character Architect (Fractional)
    HOSPITALITY
    January 2025 - Today (1 year and 5 months)
    London, United Kingdom
    Designed the core character system and interaction logic for a branded restaurant-booking assistant.
    • Built persona architecture covering tone, presence, empathy cues, and escalation logic
    • Designed interaction flows for clarification, preference gathering, fallback, and repair
    • Developed response frameworks to stabilise behaviour and reduce drift
    • Authored tone/voice guidelines and microcopy patterns across touchpoints
    • Collaborated with founder + engineering to validate behaviours through rapid prototyping and QA
    character design QA testing microcopy generative AI conversational AI
  • EmotionMachine.ai
    AI Character Systems Designer (Consultant)
    TECH
    October 2025 - December 2025 (2 months)
    Created modular persona architectures and the full learning layer for a generative character platform.
    • Built two systems: an 81-variant educational generator and a 16K+ production-ready persona architecture
    • Developed structured prompt templates, behavioural constraints, and system guardrails
    • Authored onboarding guides, prompting manuals, and best practices for non-technical users
    • Designed evaluation tools for persona fidelity, responsiveness, tone, and behavioural consistency
    • Supported UX improvements for persona selection, reducing cognitive load and ambiguity
  • Kin.ai
    Persona & Conversational UX Consultant
    TECH
    November 2025 - Today (7 months)
    • Identified friction, trust gaps, and tone inconsistencies across conversation samples
    • Strengthened persona differentiation through calibrated tone, pacing, and microcopy
    • Enhanced repair patterns and sequencing to improve clarity and rapport

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Education

  • BFA
    Emerson College
    BFA
  • Certificate of Accreditation
    L'École Internationale de Théâtre Jacques Lecoq
    Certificate of Accreditation

Skill set

Categories