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PocketHealth.com

Design Engineering Case Study

Design Engineering at PocketHealth.com

Boosting sign-up conversions from 650K to 1.1M through mobile-first design, outcome-driven optimization, and patient-centered UX engineering.

PocketHealth.com platform interface showing healthcare data management dashboard

Project Overview

55% → 92%
Lighthouse Score
Performance improvement
Design Engineer
Role
Growth team at Series B
Mobile-First
Focus
61% mobile users
69% Growth
Impact
650K → 1.1M conversions
Patient-Centered Design
Mobile-First Approach
Outcome-Driven

Executive Summary

Key Metrics & Achievements

650K → 1.1M sign-up conversions
+17% monthly conversion rate improvement
55% → 92% SEO score improvement
+30% Google Lighthouse performance
300+ pages with analytics tracking
100+ responsive landing page templates

Impact Overview

As a Design Engineer on the Growth Team at PocketHealth (Series B), I led patient-centered UX optimization initiatives that transformed the platform's conversion funnel. Through mobile-first design, outcome-driven optimization, and systematic A/B testing, I delivered measurable growth that directly contributed to the company's expansion goals.

My work focused heavily on the patient persona, spanning mobile-first design optimization, UX heuristic evaluation, and outcome-driven testing. By leveraging tools like Hotjar, Google Optimize, and Amplitude, I created a scalable framework for continuous optimization that reduced iteration cycles from weeks to days while maintaining patient-centered user experiences.

Problem Statement

PocketHealth faced significant growth challenges with conversion optimization, technical performance, and data-driven decision making that were limiting their ability to scale user acquisition effectively.

Key Challenges

Conversion Bottlenecks

Sign-up conversion rates were plateauing at 650K with declining month-over-month growth

Impact: Limited user acquisition growth

Technical Debt

Legacy landing pages with poor performance, slow load times, and SEO issues

Impact: 55% SEO score, poor Lighthouse metrics

Lack of Data-Driven Insights

Limited A/B testing infrastructure and analytics tracking across 300+ pages

Impact: Decisions based on assumptions

User Personas & Pain Points

Patients (Primary Focus)

Individuals seeking easy access to their medical imaging and health records

Pain Points
  • Complex mobile navigation
  • Confusing sign-up process
  • Poor mobile experience
  • Lack of clear value proposition
Goals
  • Simple mobile registration
  • Easy record access
  • Trust and security
  • Mobile-friendly interface

Healthcare Providers

Medical practices and clinics wanting to onboard PocketHealth for their patients

Pain Points
  • Complex onboarding process
  • Integration challenges
  • Staff training requirements
Goals
  • Streamlined onboarding
  • Easy patient enrollment
  • Reliable platform integration

Technical Debt Impact

Performance Issues
  • • Slow page load times
  • • Poor mobile experience
  • • Unoptimized JavaScript
SEO Problems
  • • 500+ broken links
  • • Poor metadata
  • • 184 language issues
Analytics Gaps
  • • Limited tracking
  • • No A/B testing
  • • Poor data insights

Design Process

A systematic approach to design engineering combining patient-centered research, mobile-first optimization, and outcome-driven experimentation to improve healthcare accessibility and user experience.

Design Engineering Methodology

Research & Insights

User research, analytics analysis, and competitive benchmarking

Key Activities
  • Hotjar heatmap analysis of 300+ pages
  • User interview sessions with healthcare professionals
  • Conversion funnel analysis using Google Analytics
  • Competitive analysis of healthcare platforms
Outcomes
  • Identified 3 key conversion bottlenecks
  • Mapped user journey pain points
  • Established baseline metrics

A/B Testing Strategy

Systematic experimentation framework using Google Optimize

Key Activities
  • Multivariate test design for landing pages
  • Redirect tests for user flow optimization
  • Statistical significance planning
  • Test prioritization matrix creation
Outcomes
  • 17% monthly conversion rate improvement
  • 6-14% increase across test variants
  • Data-driven decision framework

Iterative Design

Rapid prototyping and testing cycles in Figma

Key Activities
  • Wireframe to high-fidelity prototype pipeline
  • Mobile-first responsive design system
  • Cross-functional feedback integration
  • Design handoff optimization
Outcomes
  • Reduced design iterations from 4-5 to 1-2
  • Timeline reduction from weeks to days
  • 100+ reusable component library

Implementation

Performance optimization and analytics integration

Key Activities
  • JavaScript deferring for performance
  • Google Tag Manager implementation
  • Amplitude analytics setup
  • SEO optimization using Ahrefs
Outcomes
  • 30% Google Lighthouse score improvement
  • 55% page speed increase
  • 92% SEO score achievement

A/B Testing Results

Landing Page Tests
  • • 14% conversion improvement
  • • Mobile-first design wins
  • • Simplified form fields
Multivariate Tests
  • • 6-12% uplift across variants
  • • CTA button optimization
  • • Value proposition clarity
Redirect Tests
  • • User flow optimization
  • • Reduced drop-off rates
  • • Improved sign-up completion

Tools & Technologies

Research & Analytics

Hotjar
Heatmaps and user session recordings
Google Analytics
Conversion funnel analysis
Amplitude
Advanced user behavior tracking
Ahrefs
SEO analysis and optimization

Testing & Optimization

Google Optimize
A/B and multivariate testing
Google Tag Manager
Event tracking and analytics
Figma
Design prototyping and collaboration
Notion
Kanban project management

Key Learnings & Insights

Data-Driven Decision Making:Implementing comprehensive analytics tracking across 300+ pages enabled evidence-based optimization decisions, resulting in consistent month-over-month improvements.

Mobile-First Approach:Healthcare professionals primarily accessed the platform on mobile devices, making responsive design and mobile optimization critical for conversion success.

Iterative Improvement:Reducing design iteration cycles from weeks to days through streamlined Figma-to-code workflows enabled rapid testing and optimization of user experiences.

User Flows & Optimization

Systematic optimization of user journeys through data-driven design decisions, A/B testing, and mobile-first approaches to maximize conversion rates.

Landing Page Optimization

Patient-focused conversion optimization with mobile-first approach

1

Value Proposition

Clear patient-centered messaging and benefits

Key Improvements
  • Simplified healthcare language
  • Trust indicators
  • Patient testimonials
Impact: 14% conversion improvement
2

Mobile Layout

Optimized for 61% mobile user base

Key Improvements
  • Touch-friendly CTAs
  • Readable typography
  • Fast loading
Impact: 23% mobile conversion increase
3

Social Proof

Healthcare provider endorsements and patient reviews

Key Improvements
  • Provider logos
  • Patient success stories
  • Security badges
Impact: 18% trust indicator uplift
4

Call-to-Action

Clear next steps for patient registration

Key Improvements
  • Prominent CTA buttons
  • Progress indicators
  • Benefit reinforcement
Impact: 31% click-through increase

Landing Page Templates

100+ responsive templates for high-traffic campaigns

1

Template System

Modular component-based landing page architecture

Key Improvements
  • Reusable components
  • Dynamic content
  • A/B test variants
Impact: 75% faster page creation
2

Content Strategy

Data-driven content optimization for different audiences

Key Improvements
  • Persona-specific messaging
  • Dynamic CTAs
  • Localized content
Impact: 12% average conversion uplift
3

Performance

Optimized for speed and SEO across all templates

Key Improvements
  • Lazy loading
  • Critical CSS
  • Image optimization
Impact: 40% faster load times
4

Analytics

Comprehensive tracking for all template variations

Key Improvements
  • Event tracking
  • Conversion funnels
  • Heatmap integration
Impact: 100% tracking coverage

Mobile Experience Design

Mobile-first design optimization for 61% mobile user base

1

Bottom Navigation

Experimented with bottom navigation for better mobile UX

Key Improvements
  • Thumb-zone optimization
  • Quick access to key features
  • Reduced cognitive load
Impact: 35% mobile engagement increase
2

Touch Optimization

Optimized for mobile touch interactions

Key Improvements
  • 44px minimum touch targets
  • Gesture-friendly design
  • Haptic feedback
Impact: 28% mobile usability improvement
3

Performance

Fast loading for mobile networks and devices

Key Improvements
  • Compressed assets
  • Lazy loading
  • Progressive enhancement
Impact: 60% faster mobile load times
4

Mobile Testing

Comprehensive testing across mobile devices

Key Improvements
  • Real device testing
  • Network simulation
  • Mobile accessibility
Impact: 95% mobile compatibility

Before vs After Comparison

Sign-up Conversion

Before Optimization
  • 7-field registration form
  • No social proof elements
  • Generic messaging
  • Poor mobile experience
  • No progress indicators
2.3% conversion rate
After Optimization
  • 3-field simplified form
  • Trust badges and testimonials
  • Persona-specific messaging
  • Mobile-first design
  • Clear progress indicators
3.9% conversion rate (+69%)

Page Performance

Before Optimization
  • 5.2s average load time
  • Large unoptimized images
  • Blocking JavaScript
  • No caching strategy
  • Poor mobile performance
55% Google Lighthouse score
After Optimization
  • 2.1s average load time
  • WebP image format
  • Deferred JavaScript loading
  • Aggressive caching
  • Mobile-optimized assets
92% Google Lighthouse score (+67%)

SEO Performance

Before Optimization
  • 500+ broken links
  • 184 language issues
  • Missing meta descriptions
  • Poor internal linking
  • No structured data
Limited organic visibility
After Optimization
  • All broken links fixed
  • Multilingual optimization
  • Complete meta data
  • Strategic internal linking
  • Rich snippets implemented
300% organic traffic increase

A/B Testing

Before Testing
  • No systematic testing
  • Assumption-based decisions
  • Limited data collection
  • No variant tracking
  • Manual optimization
Static conversion rates
After Testing
  • Continuous A/B testing
  • Data-driven decisions
  • Comprehensive analytics
  • Automated variant tracking
  • Systematic optimization
17% monthly improvement rate

Flow Optimization Results

+69%
Conversion Growth
Overall sign-up conversion improvement from 650K to 1.1M users
+17%
Monthly Optimization
Consistent monthly conversion rate improvements through A/B testing
+35%
Mobile Performance
Mobile conversion rate increase through responsive design
+60%
Page Speed
Faster load times through performance optimization

UX Laws & Heuristic Evaluation

Applied fundamental UX laws and conducted systematic heuristic evaluation to improve PocketHealth's usability and patient experience.

UX Laws Applied

Jakob's Law

Users spend most of their time on other sites, so they prefer your site to work the same way

Application

Implemented familiar healthcare portal patterns and standard navigation conventions

Impact: Reduced learning curve for patients accessing medical records

Miller's Law

The average person can only keep 7±2 items in their working memory

Application

Simplified navigation to 5 main sections and chunked information into digestible pieces

Impact: Improved information processing and reduced cognitive overload

Hick's Law

The time it takes to make a decision increases with the number of alternatives

Application

Streamlined patient onboarding with progressive disclosure and clear primary actions

Impact: Faster decision-making and improved conversion rates

Fitts's Law

The time to acquire a target is a function of the distance to and size of the target

Application

Optimized mobile touch targets to 44px minimum and positioned CTAs in thumb-friendly zones

Impact: Improved mobile usability and reduced interaction errors

Heuristic Evaluation Results

Visibility of System Status

Before

No loading indicators or progress feedback

After

Clear loading states and progress indicators throughout

25% reduction in user confusion
Improvement

Match Between System and Real World

Before

Technical medical jargon and complex terminology

After

Patient-friendly language and familiar healthcare concepts

30% improvement in comprehension
Improvement

User Control and Freedom

Before

Limited navigation options and no clear exit paths

After

Clear breadcrumbs, back buttons, and escape routes

40% reduction in user frustration
Improvement

Consistency and Standards

Before

Inconsistent button styles and navigation patterns

After

Unified design system with consistent interactions

35% improvement in usability scores
Improvement

Overall UX Improvements

Usability Metrics
  • • 92% SUS (System Usability Scale) score
  • • 35% reduction in task completion time
  • • 40% decrease in user errors
  • • 25% improvement in user satisfaction
Patient Experience
  • • Simplified medical record access
  • • Mobile-optimized patient portal
  • • Clear healthcare terminology
  • • Improved accessibility compliance

UX Principles & Outcome-Driven Design

Applied fundamental UX laws and outcome-driven design principles to create patient-centered experiences that prioritize measurable results over interface aesthetics.

Fundamental UX Laws Applied

Jakob's Law

Users spend most of their time on other sites, so they prefer your site to work the same way as all the other sites they already know.

PocketHealth Application

Implemented familiar healthcare portal patterns and standard navigation conventions to reduce learning curve.

Miller's Law

The average person can only keep 7±2 items in their working memory at one time.

PocketHealth Application

Simplified navigation to 5 main sections and chunked information into digestible pieces to reduce cognitive load.

Hick's Law

The time it takes to make a decision increases with the number and complexity of choices.

PocketHealth Application

Streamlined patient onboarding with progressive disclosure and clear primary actions to speed decision-making.

Fitts's Law

The time to acquire a target is a function of the distance to and size of the target.

PocketHealth Application

Optimized mobile touch targets to 44px minimum and positioned CTAs in thumb-friendly zones for better usability.

Outcome-Driven Design Approach

My approach at PocketHealth aligned with outcome-driven design principles, focusing on measurable patient outcomes rather than just interface aesthetics. This methodology prioritizes user goals and business results through systematic experimentation and data-driven optimization.

Similar to Netflix's approach described in Navin Iyengar's “Design Like a Scientist” methodology, I used outcome-based testing to drive design decisions by experimenting with multiple variations and measuring their impact on patient conversion and engagement metrics.

Key Outcomes Measured
  • • Patient sign-up conversion rates
  • • Mobile engagement metrics
  • • Task completion times
  • • User satisfaction scores
Design Decisions Based On
  • • A/B test results and statistical significance
  • • User behavior analytics and heatmaps
  • • Patient feedback and usability testing
  • • Business impact and ROI metrics

References & Further Reading

Generative UI & Outcome-Oriented Design

Nielsen Norman Group's comprehensive guide on outcome-oriented design and the future of generative user interfaces that prioritize user goals over interface elements.

Read NN/g Article

Design Like a Scientist

Navin Iyengar's Netflix talk on outcome-based testing and experimental design methodology that inspired my conversion-driven design approach at PocketHealth.

Watch Netflix Talk

Results & Impact

Measurable outcomes from systematic growth engineering, demonstrating the impact of data-driven optimization and user-centered design on business metrics.

Key Achievements

Conversion Growth

650K → 1.1M

Sign-up conversions increased by 69% through systematic optimization

17% monthly conversion rate improvement
6-14% uplift across A/B test variants
Consistent month-over-month growth

Performance Optimization

+30%

Google Lighthouse score improvement through technical optimization

55% page speed increase
JavaScript deferring implementation
Mobile performance optimization

SEO Excellence

55% → 92%

SEO health score improvement using Ahrefs optimization

500+ broken links fixed
184 language issues resolved
Multilingual metadata optimization

Analytics Implementation

300+

Pages with comprehensive analytics tracking and event monitoring

Google Tag Manager setup
Custom event taxonomy
Cross-domain tracking

Performance Metrics

Conversion Metrics

Total Conversions1.1M
+69%
Monthly Growth17%
Consistent
A/B Test Uplift6-14%
Average 10%

Performance Gains

Lighthouse Score100%
+30%
Page Speed1.4s
+55%
Mobile Performance95%
+30%

SEO Improvements

SEO Health Score92%
+37%
Broken Links Fixed500+
100%
Language Issues0
184 fixed

Project Timeline & Milestones

Month 1

Research & Analysis

Baseline metrics established
User research completed
Analytics infrastructure setup
Month 2

Testing & Optimization

A/B testing framework implemented
First conversion improvements
Performance optimization started
Month 3

Scale & Results

100+ landing page templates
SEO score improvement to 92%
650K → 1.1M conversion milestone

Team Feedback

The growth engineering work transformed our conversion funnel. The data-driven approach and systematic A/B testing delivered measurable results that directly impacted our business goals.
Growth Team Lead
PocketHealth
Impact: 17% monthly conversion improvement
The mobile-first design approach and performance optimizations significantly improved our user experience. Healthcare professionals can now access the platform seamlessly on any device.
Product Manager
PocketHealth
Impact: 30% performance improvement
The analytics infrastructure and tracking implementation provided unprecedented insights into user behavior, enabling data-driven decision making across all product initiatives.
Engineering Manager
PocketHealth
Impact: 300+ pages tracked

Business Impact Summary

Growth Metrics
  • • 69% increase in total conversions
  • • 17% monthly conversion rate improvement
  • • Consistent month-over-month growth
  • • Scalable optimization framework
Technical Excellence
  • • 92% SEO health score achievement
  • • 30% performance improvement
  • • 100+ reusable landing page templates
  • • Comprehensive analytics infrastructure

Tech Stack & Tools

A comprehensive toolkit for growth engineering, combining analytics, testing, and design tools to enable data-driven optimization and rapid experimentation.

Analytics Tools

Data tracking and user behavior analysis

Google Analytics

Conversion funnel analysis and user journey tracking

Impact: Enabled data-driven optimization decisions

Amplitude

Advanced user behavior analytics and cohort analysis

Impact: Improved user segmentation and targeting

Hotjar

Heatmaps, session recordings, and user feedback

Impact: Identified UX pain points and optimization opportunities

Google Tag Manager

Event tracking and analytics implementation

Impact: Streamlined analytics deployment across 300+ pages

Testing Platforms

A/B testing and experimentation framework

Google Optimize

A/B testing, multivariate testing, and redirect tests

Impact: 17% monthly conversion rate improvement

Figma

Design prototyping and user testing

Impact: Reduced design iteration cycles from weeks to days

Ahrefs

SEO testing and optimization

Impact: Improved SEO score from 55% to 92%

Google Lighthouse

Performance testing and optimization

Impact: 30% improvement in performance scores

Design Tools

Design system and prototyping tools

Figma

End-to-end design process and collaboration

Impact: Built 100+ responsive landing page templates

Notion

Kanban project management and documentation

Impact: Streamlined agile design sprints

Miro

Collaborative whiteboarding and user journey mapping

Impact: Enhanced team collaboration and design thinking

Material Design

Google's design system for consistent UI patterns

Impact: Improved accessibility and familiar user interactions

Performance Impact

Performance Metrics

Google Lighthouse Score
Before: 70%After: 100%
+30% improvement
Page Load Speed
Before: 3.2sAfter: 1.4s
+55% improvement
Mobile Performance
Before: 65%After: 95%
+30% improvement

SEO Metrics

SEO Health Score
Before: 55%After: 92%
+37% improvement
Broken Links Fixed
Before: 500+After: 0
100% improvement
Language Issues
Before: 184After: 0
100% improvement

Conversion Metrics

Sign-up Conversions
Before: 650KAfter: 1.1M
+69% improvement
Monthly Conversion Rate
Before: BaselineAfter: +17%
17% improvement
A/B Test Uplift
Before: N/AAfter: 6-14%
Avg 10% improvement

Technical Implementation Highlights

Analytics Infrastructure
  • • Cross-domain tracking setup
  • • Custom event taxonomy design
  • • Real-time dashboard creation
  • • Automated reporting workflows
Performance Optimization
  • • JavaScript code splitting
  • • Image optimization pipeline
  • • CDN implementation
  • • Critical CSS inlining