Use Case

CREWUP

Mobile Product for Skilled Trades – Usability & Desirability Testing

A B2C mobile app prototype designed to test usability and desirability across multiple user flows. Built in Figma and tested live via QR codes on mobile and desktop, with real-time feedback from event attendees.

Use Case

CREWUP

Mobile Product for Skilled Trades – Usability & Desirability Testing

A B2C mobile app prototype designed to test usability and desirability across multiple user flows. Built in Figma and tested live via QR codes on mobile and desktop, with real-time feedback from event attendees.

Use Case

CREWUP

Mobile Product for Skilled Trades – Usability & Desirability Testing

A B2C mobile app prototype designed to test usability and desirability across multiple user flows. Built in Figma and tested live via QR codes on mobile and desktop, with real-time feedback from event attendees.

Use Case

CREWUP

Mobile Product for Skilled Trades – Usability & Desirability Testing

A B2C mobile app prototype designed to test usability and desirability across multiple user flows. Built in Figma and tested live via QR codes on mobile and desktop, with real-time feedback from event attendees.

My Role

Lead & Solo Designer Content Writer QA

My Role

Lead & Solo Designer Content Writer QA

My Role

Lead & Solo Designer Content Writer QA

Client

CrewUp

Client

CrewUp

Client

CrewUp

Team

Head of Technology - Roy Liu Venture Lead - Omar Meson Brand Designer - Mae Tsui Venture - Sam Babatsikos

Team

Head of Technology - Roy Liu Venture Lead - Omar Meson Brand Designer - Mae Tsui Venture - Sam Babatsikos

Team

Head of Technology - Roy Liu Venture Lead - Omar Meson Brand Designer - Mae Tsui Venture - Sam Babatsikos

Year

2023

Year

2023

Year

2023

Project Details

The Problem

Contractors struggle to find reliable, qualified workers quickly, while skilled workers struggle to find the right jobs.

When workers don’t show up, projects stall—causing delays and financial loss. Contractors need fast, dependable replacements to keep work moving.

The Solution

We designed a platform that connects contractors with skilled workers quickly and reliably.

It enables fast hiring, meaningful filtering, and secure payments—helping teams find the right people on demand and keep projects moving.

Project Details

The Problem

Contractors struggle to find reliable, qualified workers quickly, while skilled workers struggle to find the right jobs.

When workers don’t show up, projects stall—causing delays and financial loss. Contractors need fast, dependable replacements to keep work moving.

The Solution

We designed a platform that connects contractors with skilled workers quickly and reliably.

It enables fast hiring, meaningful filtering, and secure payments—helping teams find the right people on demand and keep projects moving.

Project Details

The Problem

Contractors struggle to find reliable, qualified workers quickly, while skilled workers struggle to find the right jobs.

When workers don’t show up, projects stall—causing delays and financial loss. Contractors need fast, dependable replacements to keep work moving.

The Solution

We designed a platform that connects contractors with skilled workers quickly and reliably.

It enables fast hiring, meaningful filtering, and secure payments—helping teams find the right people on demand and keep projects moving.

Project Details

The Problem

Contractors struggle to find reliable, qualified workers quickly, while skilled workers struggle to find the right jobs.

When workers don’t show up, projects stall—causing delays and financial loss. Contractors need fast, dependable replacements to keep work moving.

The Solution

We designed a platform that connects contractors with skilled workers quickly and reliably.

It enables fast hiring, meaningful filtering, and secure payments—helping teams find the right people on demand and keep projects moving.

The Journey at a Glance

Discovery

Contractors were mostly hiring skilled workers through word of mouth.

Discovery

Contractors were mostly hiring skilled workers through word of mouth.

Key Pain Points

Contractors struggled with tracking worker performance, handling payroll, and managing documents manually.

Key Pain Points

Contractors struggled with tracking worker performance, handling payroll, and managing documents manually.

Concept

R-LABS came up with an idea to create an app that was like LinkedIn for contractors.

Concept

R-LABS came up with an idea to create an app that was like LinkedIn for contractors.

Strategy

The team ran research and planned a strategy to validate market interest.

Strategy

The team ran research and planned a strategy to validate market interest.

My Contribution

I designed the mobile product to help contractors hire faster and skilled workers find more jobs.

My Contribution

I designed the mobile product to help contractors hire faster and skilled workers find more jobs.

Live Testing

We created a mobile prototype that was tested live with users at an industry event.

Live Testing

We created a mobile prototype that was tested live with users at an industry event.

Pain Points

Reliable Skilled Workers

Contractors said their biggest hiring risk was not knowing if a worker would show up or deliver consistent quality. They needed clearer reliability signals before committing.

Pain Relief

Worker cards highlight the trust signals contractors look for—ratings, no-show history, trade fit, availability, and verification—so they can hire confidently, faster.

Hiring Process

Hiring took too long. Contractors struggled with unqualified candidates, constant follow-ups, coordinating schedules, slowing projects, and adding stress.

Pain Relief

We streamlined hiring into a quick flow: set the date, add project details, choose rates and payment, and confirm. Larger projects can add budgets and multiple roles, and every hire ends with a review to keep quality high.

Worker Profiles

Word-of-mouth hiring gave contractors little visibility into true skill level. Many wanted real proof—examples of past work—to avoid mismatches and rework.

Pain Relief

Detailed worker profiles surface the proof contractors need: past work photos, testimonials, references, reliability history, and real availability, helping them judge fit before hiring.

Planning

Sketch

To clarify the core flows early, I sketched out the key screens based on the initial requirements. This helped the team align on the most efficient user path before moving into wireframes. I drew inspiration from familiar patterns on platforms like LinkedIn and Facebook to keep interactions intuitive.

User Flow

Using the sketches as a starting point, I mapped the user flow during a team discussion to define what should be included in the MVP. Together, we refined the path, added missing screens, and introduced features like the On-Demand option after identifying that urgent hires were a common contractor need.

Dashboard

1. Lo-Fi Wireframe

A quick structural sketch to define the basic layout, key actions, and initial placement of worker cards.

2. Mid-Fi Wireframe

Added real content and interaction details, including worker cards, group hiring screens, and early reliability signals like availability, ratings, and hourly rates.

3. Mockup v1

Explored the first high-fidelity direction. Adjusted spacing, improved readability by switching from stars to numeric ratings, and updated the calendar to clearly show days and dates.

4. Mockup v2

Shifted to a horizontal card layout to reduce eye-scanning fatigue and create room for richer details, including a more legible availability calendar.

5. MVP

Applied final brand colors and styling based on the completed brand guide, optimizing contrast and clarity for real devices.

High-Fidelity Design

Prototype

UX Workshop

Before moving into prototyping, I decided to review the flow one last time with mockup. As a team, we reviewed the details, refined the copy, and adjusted screens based on usability considerations. Once the updates aligned with our goals, I received approval to move forward with the prototype.

Prototype

After the UX workshop, I created three flow variations from a common starting point to explore how each user type moved through the experience. We realized that certain paths were irrelevant to trade workers or project managers, so we separated the prototypes to keep each one focused and easy to test. Each version was paired with an online survey to gather user feedback and validate the flows.

Key Takeaway

Live User Validation

We tested the prototype with prospective users at a trade show to confirm core needs and hiring behaviors in real time.

Live User Validation

We tested the prototype with prospective users at a trade show to confirm core needs and hiring behaviors in real time.

Performance Adjustments

Many users were on low-end smartphones, so we removed animations to keep the experience fast, lightweight, and reliable.

Performance Adjustments

Many users were on low-end smartphones, so we removed animations to keep the experience fast, lightweight, and reliable.

Quick Tutorial Request

Feedback showed that first-time users wanted a short, guided walkthrough to understand key features quickly.

Quick Tutorial Request

Feedback showed that first-time users wanted a short, guided walkthrough to understand key features quickly.

Investor Presentation

The prototype was also used to pitch the product to investors, helping communicate the value, workflow, and market opportunity.

Investor Presentation

The prototype was also used to pitch the product to investors, helping communicate the value, workflow, and market opportunity.

Let’s Connect

Open to product design opportunities and collaborations.

© 2026 Sae-Hee Shin. All rights reserved.

Let’s Connect

Open to product design opportunities and collaborations.

© 2026 Sae-Hee Shin. All rights reserved.