Full-stack dev for web-based simulation experience

Freelance Full-Stack Developer (Web + AI Integrations)

Project: Interactive AI-Enabled GCC Simulation Experience
Engagement: Contract / Freelance (3 months)
Location: Remote (collaboration with AU-based team)
Start: Late February, early March

Project Overview

We are building a high-impact, interactive, web-based experience for senior executives that simulates the creation and evolution of a Global Capability Centre (GCC).

The experience combines:
A touch-screen and voice-responsive web interface
Game-style logic (budgets, AI investment, talent, culture)
AI-powered features, including live avatars, brand personalisation, and generative content
Scenario-based progression and a final AI-generated executive report

You will be the sole developer responsible for front-end and back-end implementation, AI integrations, and deployment, working closely with a Creative Director, UX/UI Designer, Visual Designer, and Project Lead.

What You’ll Be Building
A single-player interactive simulation with dynamic state management
A reusable screen + component system (~50 core screens with variable states)
A game logic engine managing budgets, scores, timelines, scenarios, and unlocks

AI-driven features including:
Conversational AI avatars (HeyGen)
Brand personalisation via Brandfetch API
AI-generated summaries, recommendations, and insight text
AI-assisted image generation (via Replicate APIs)

Key Responsibilities
Front-End Development
Build a responsive, touch-friendly web interface
Implement dynamic UI components, meters, dashboards, and timelines
Integrate voice and text inputs where applicable
Optimise performance for kiosk and executive demo environments

Back-End Development
Design and implement application logic and state management
Build APIs to manage game progression, scenarios, and scoring
Set up a lightweight database to persist user state and session data
Support optional account creation / session recall (if required)

AI & API Integrations
Integrate HeyGen Live Avatar APIs for conversational guidance
Integrate Brandfetch API for real-time brand theming
Integrate Replicate (Flux Kontext Pro / Nano Banana or similar) for image generation
Implement prompt logic and safeguards for executive-safe AI outputs

Testing & Deployment
Conduct functional and edge-case testing
Support QA cycles and iterations
Deploy to a cloud hosting environment
Support handover and documentation at project close

Required Experience
Strong experience as a Full-Stack JavaScript developer
Proficiency in React / Next.js / Vue (or comparable modern framework)
Solid Node.js / API development experience
Experience integrating third-party APIs, especially AI or media APIs
Familiarity with state-driven applications (games, simulations, configurators)
Comfortable working independently and making technical decisions

Nice-to-Have (Not Mandatory)
Experience with:
AI/LLM-driven applications
Web-based game mechanics or simulations
Voice interfaces or conversational UI
Kiosk or large-format touch screen experiences
Experience deploying to AWS, Vercel, or similar platforms

How We’ll Work Together
Clear UX designs and experience logic provided
Weekly check-ins with the core team
Direct collaboration with designers and creative lead
You own technical decisions, with support when needed

Deliverables
Fully functioning web-based experience
Integrated AI avatar, branding, and generative features
Deployed application with documentation
Knowledge transfer at project close

Contract Details
Duration: ~10 weeks
Rate: Competitive, based on experience
Payment: Milestone-based

To Apply
Please include:
Brief summary of relevant experience
Links to 1–3 similar projects (interactive tools, AI apps, simulations, dashboards, etc.)
Your availability over the next 3 months
Your preferred hourly or project-based rate