Freelance Prompt Engineers in Houston

Freelance Prompt Engineers in HoustonFreelance Prompt Engineers in Houston

Projects People

Madison Andrews

Knowledge systems. Brand governance. Agentic workflows.

New to Contra

Knowledge systems. Brand governance. Agentic workflows.

Cover image for A system design for an

A system design for an AI agent that monitors LinkedIn for engagement opportunities — industry news, thought leadership posts, relevant conversations — and drafts comments and reshares for human review before posting. The architecture includes: topic and account monitoring criteria, daily scan logic, draft generation with brand voice alignment, a review queue delivered via email or Slack, and approval workflows that ensure nothing posts without human sign-off. Designed for marketing teams and executives who want consistent LinkedIn visibility without the daily time investment. Phase 2 extends the system to personalized recommendations for individual employees. My role: System design, workflow architecture, and productization.

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62

Cover image for The system prompt that governs

The system prompt that governs an AI content assistant's behavior — ensuring it searches before responding, follows brand voice, respects compliance guardrails, and never hallucinates clinical details. This isn't a simple instruction set. It's a layered governance framework covering: data usage rules, response routing logic, format fidelity, voice and tone calibration, compliance guardrails, and fallback behavior when data is missing. The prompt was refined through iterative testing with the marketing team, balancing strictness (no invented claims) with usability (natural, helpful outputs). The result: an AI that behaves like a knowledgeable teammate, not a generic chatbot. My role: Prompt architecture, iterative testing, and documentation for long-term maintenance.

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67

Cover image for A complex behavioral healthcare organization

A complex behavioral healthcare organization needed a way to produce high-volume marketing content — eBlasts, social posts, blog drafts — without sacrificing clinical accuracy or brand consistency. Manual processes were slow, and the risk of off-brand or non-compliant content was constant. I designed and deployed an AI-powered content assistant that queries the organization's Notion knowledge base before every response. The system enforces brand voice, messaging guardrails, and compliance standards automatically — so the marketing team gets governed first drafts, not generic AI output. The tool handles content generation, content review, and brand training. It's now being expanded to include SEO/AEO-driven content calendar automation. Results: - 4–12 hours/month saved on content creation - Reduced risk of costly reprints and off-brand messaging - Marketing team trained and using the tool independently My role: Discovery, system architecture, Notion database design, prompt engineering, integration, documentation, and team training.

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87

Cover image for A structured Notion workspace that

A structured Notion workspace that serves as the single source of truth for a complex behavioral healthcare organization's marketing team. The system includes interconnected databases for programs, facilities, approved messaging, and content examples — each with properties designed for AI retrieval. When the AI content assistant needs to generate or review content, it queries this knowledge base first, ensuring every output aligns with brand standards and clinical accuracy. Architecture decisions included: relational linking between programs and approved messaging, searchable aliases for program name variations, messaging guardrails stored at the program level, and a content library tagged by format, audience, and goal. My role: Discovery, information architecture, database design, governance logic, and documentation.

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72

Prompt Engineer(3)

AI Chatbots & Voice Agents for Technical Companies

AI Chatbots & Voice Agents for Technical Companies

Cover image for Custom GPT Implementation

Custom GPT Implementation

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11

Cover image for Voiceflow Apartment Agent Chatbot

Voiceflow Apartment Agent Chatbot

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14

Cover image for 1-Click IG Post Streamlit App Development

1-Click IG Post Streamlit App Development

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9

Cover image for Custom Copilot Creation

Custom Copilot Creation

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13

Prompt Engineer(1)

Premium AI imagery for ecommerce and lifestyle brands

Premium AI imagery for ecommerce and lifestyle brands

Cover image for Lunar Shores

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11

Cover image for Textured Towns

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4

Cover image for Latent Realism

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9

Cover image for SALTWELL | Washed Light Candle Collection

SALTWELL | Washed Light Candle Collection

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5

Prompt Engineer(3)

UGC & AI Creator | Beauty, Lifestyle & Product Ads

New to Contra

UGC & AI Creator | Beauty, Lifestyle & Product Ads

Cover image for Luméra — AI-Powered Luxury Beauty Campaign

Luméra — AI-Powered Luxury Beauty Campaign

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2

Cover image for UGC

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51

Cover image for UGC Video

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50

Cover image for AI App start up UGC

AI App start up UGC

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63

Prompt Engineer(1)