All work

Toast POS redesign · Food & drink

A point of sale that holds up during the Friday rush

I led mobile design on a Toast POS redesign for small food and drink businesses, replacing the spreadsheets, texts and whiteboards staff fall back on when their system fails.

Role

Product Designer & UX Researcher, mobile lead

Team

Ryan Eang, Zander Vilaysane, Ashley Nguyen and me

Timeline

10 weeks, Jan – Mar 2025

Context

COGS 127: Data-Driven UX/Product Design, UC San Diego

Redesigned Toast POS order screens on tablet and phone

Problem

When the POS crashes mid-rush, staff switch to manual workarounds that slow service and lose revenue.

What I did

Interviewed four local businesses, audited four platforms, and designed the handheld flow from orders to payment.

Key insight

82%

had a POS issue in the last two weeks

01Challenge

In food and drink, every second counts. One crash during a rush means a line out the door and a spreadsheet nobody trusts.

Unreliable systems, whether a Square reader that freezes or a platform with little automation, push small teams into slow manual processes. That hurts service at peak hours and adds stress about lost sales and burnout.

Our goal was a POS that's reliable under pressure, quick to learn, and flexible enough to grow with the business.

02Research

We started with the people behind the counter

We interviewed owners and staff at four San Diego food and drink businesses about their tools and their busiest hours.

Boba tea shop

Camellia Rd Tea Bar

Frequent Square malfunctions force manual inventory tracking and workarounds.

Pop-up matcha bar

Mix + Matcha

The iPad POS crashes during rushes, so staff switch to slower phone payments.

Local brand

Gleem Energy

Shopify's limited automation creates labour-heavy processes and slow handoffs.

Coffee shop

Friends of Friends

Equipment checks and scheduling live on whiteboards and paper lists.

82%

reported a POS issue in the last two weeks

77%

wanted better order organisation

3 of 4

businesses only take contactless payments

“Square just stops working pretty often.”Owner, Camellia Rd Tea Bar

Four patterns kept coming up

01

Unpredictable failures

Crashes at peak hours mean long downtime and slower workarounds.

02

Manual workarounds

Google Sheets for inventory, text messages to coordinate orders.

03

Disconnected tools

Owners want orders, tasks and device handoffs in one place.

04

Room to grow

A system that scales with demand and automates more over time.

03Platform audit

Why we built on Toast

We benchmarked the four platforms our interviewees used or considered. Each one centralises services, but none is both flexible and easy to use. Pick a platform to compare.

Toast

Strengths

  • Restaurant-focused
  • Robust features
  • Hardware and software bundles
  • Durable hardware

Weaknesses

  • Expensive for small businesses
  • Limited flexibility outside restaurants
  • Proprietary hardware
  • Inconsistent performance

Why it's our base The strongest foundation for food service. The gaps are usability and flexibility, which is exactly what design can fix.

Feature comparison

FeatureSquareCloverShopifyToast
Customisable layouts✕✓✓✕
Mobile app✓✓✓✓
Real-time reporting and analytics✓✓✓✓
Inventory management✓✓✓✓
Third-party app integration✕✓✓✕
Offline mode✓✓✓✓
Online ordering and e-commerce✓✕✓✓
Customer feedback collection✕✓✓✕
Employee management✓✓✓✓

Toast's gaps, highlighted, pointed us to customisable layouts, which became the tabbed order views below.

04Personas

Two sides of the same counter

Every order has a customer waiting and a team trying to keep up. We designed for both.

Persona: Mark, café owner
Mark needs a POS he can trust when it's busy, and numbers he can act on after close.

05Process

Mapping the rush

We mapped the two flows that matter most at peak hours, then sketched and prototyped them at low fidelity.

Business management flow
Staff: taking, tracking and closing orders. Click to enlarge.
My first paper sketches: customer landing page, order summary, product details, payment and the business dashboard
My first paper sketches: ordering, checkout, payment and the business dashboard.
Early sketches of handheld, tablet and analytics screens
Sketches for handheld, tablet and analytics.
Lo-fi mobile order screen
Lo-fi handheld order.
Lo-fi checkout screen
Lo-fi tablet checkout.

06Iteration

From scrolling fatigue to tabs

Our first handheld relied on a long list and a "Sort by" button. Heuristic reviews and owner testing flagged scrolling fatigue and information overload. Toggle to see what changed.

Hi-fi, after testing

Status at a glance

  • All, Active and Closed tabs replace "Sort by", so staff stop scrolling
  • A prominent New Order button for walk-ups
  • Paid and Not paid in consistent colours, with names and totals on every card
  • Clean cards instead of receipt-style edges, closer to Toast's brand
Final handheld order list with All, Active and Closed tabs

07Solution

Handheld, for staff on the floor

I designed the handheld around a server mid-shift. Step through the flow below.

WhatRecent orders in tabs, each card showing name, total and paid status.WhyStaff told us they lose time hunting for the right order. Tabs answer "what still needs doing?" instantly.
01 / 04

08Outcome

What the redesign is built to do

Faster under pressure

Fewer manual steps, so staff process orders quickly even mid-rush.

Decisions on the fly

Owners see orders and revenue in one place instead of a spreadsheet.

Grows with the business

Customisable views that adapt as menus, teams and volume change.

09Reflection

This project showed me how much iteration matters. Bringing owner feedback into every round taught me to balance creative ideas with what actually works behind a busy counter.

Thanks to Ryan Eang, Zander Vilaysane and Ashley Nguyen, and to Camellia Rd, Mix + Matcha, Gleem Energy and Friends of Friends for their time.