Our Work

Case Studies & Projects

Real-world examples of what we design and build — from AI assistants to data tools. Each one is live, not a mock-up. Here's a closer look at each.

Sprout — Mustard Seeds Group's AI chat assistant, a green sprout in a forest-green bubble on cream linen
Case Study · Conversational AI

Sprout — AI Chat Assistant

Sprout is the friendly assistant that lives in the corner of this website. It answers visitors' questions about our services, free tools and learning resources, and quietly guides genuine enquiries toward getting in touch — all in our own voice and brand.

Its conversational brain is a Microsoft Copilot Studio agent that answers only from our published documentation, so it stays accurate and never invents prices or promises. We wrapped it in a fully custom front-end widget connected over Direct Line, with a server-side token broker so no credentials ever reach the browser.

  • Grounded answers from approved documentation — no hallucinated facts
  • Custom, on-brand widget with our typography, colours and sprout motif
  • Secure token-broker architecture; anonymous, no login required
  • Graceful handoff to our contact page when a person is needed
Microsoft Copilot StudioDirect LineToken BrokerVanilla JSGoogle Cloud
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A blue Ceylon sapphire and a gold gemstone on cream linen with green foliage — Mustard Seeds Gems
Case Study · E-Commerce

Gems E-Commerce Platform

Mustard Seeds Gems is a live online store for gemstone retail — a curated collection of sapphires, rubies, emeralds and more, with a heritage rooted in the gem region of Sri Lanka. We designed and built the whole platform in-house, end to end.

The store pairs high-resolution gemstone photography with a fast, mobile-first experience: a browsable catalogue, search and filtering, and member-only pricing for registered buyers. Built with Next.js and React and optimised for search, it shows our e-commerce capability from visual design through to production.

  • Curated product catalogue with high-resolution imagery
  • Member-only pricing with secure authentication
  • Search, filtering and a mobile-first responsive design
  • SEO-optimised, fast-loading, and fully in production
Next.jsReactResponsive CSSSEOE-Commerce
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Customer Lifetime Value Predictor — Mustard Seeds Group machine-learning showcase
Case Study · Machine Learning

Customer Lifetime Value Predictor

An interactive ML showcase that predicts each customer's 24-month lifetime value for a B2C online retailer — and shows why. Visitors browse a portfolio of customers ranked by predicted value, drill into any one to see the drivers behind the number, adjust their attributes with live sliders, and watch a projected value-over-time curve update with an uncertainty band.

Under the hood is a genuine MLOps lifecycle: an XGBoost regressor (test R² ≈ 0.84) developed and tracked with MLflow on Databricks, with per-prediction SHAP explanations, served from a scale-to-zero FastAPI container and a polished Next.js front-end. It runs for a few dollars a month while demonstrating real engineering depth end to end.

  • Portfolio ranked by predicted lifetime value with total book value
  • Per-customer SHAP breakdown — transparent, defensible predictions
  • Live what-if sliders that recompute value instantly
  • Value-over-time forecast with a widening uncertainty band
XGBoostSHAPMLflow / DatabricksFastAPINext.jsAWS Lambda
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All Projects

Sprout — Mustard Seeds Group's AI chat assistant, a green sprout in a forest-green bubble on cream linen Case Study

Sprout — AI Chat Assistant

A branded, secure AI assistant built on Microsoft Copilot Studio with a custom Direct Line widget and a token-broker architecture — answering visitors from our own documentation. It's live on this site.

View case study →
A blue Ceylon sapphire and a gold gemstone on cream linen with green foliage — Mustard Seeds Gems Case Study

Gems E-Commerce Platform

A live online store for gemstone retail — built with Next.js and React, with a product catalogue, member-only pricing, search and filtering, and a mobile-first, SEO-optimised design.

View case study →
Customer Lifetime Value Predictor — Mustard Seeds Group machine-learning showcase Machine Learning

Customer Lifetime Value Predictor

An interactive ML tool that predicts 24-month customer lifetime value and explains every prediction with SHAP. XGBoost model (R² ≈ 0.84) tracked on Databricks with MLflow, served from a scale-to-zero FastAPI container behind a polished Next.js front-end.

View the live tool →

Have a project in mind?

We design and build AI assistants, machine learning solutions, and custom tools grounded in your own data. Let's talk about yours.

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