Introduction

I design things people actually want to use.

Hi, I’m Katherine, a UX/UI designer who transforms complexity into clarity. I design with empathy, precision, and a deep understanding of human behaviour, crafting experiences that guide, engage, and empower. Based in Toronto, I’m passionate about solving the right problems through meaningful collaboration.

These case studies highlight my UX research and design process. The Beaches Wellness Centre project was developed independently as portfolio work. Professional work varies in documentation — some projects include original artifacts released by former employers, while others are documented without files to honor confidentiality and security agreements.

Notable clients: RBC Bank, TD Bank, Bank of Nova Scotia, Canada Life Insurance, Canadian Tire Financial Services

Skills & Tools

UX Research & Strategy

  • User interviews, surveys, and usability testing
  • Competitive analysis and market research
  • Information architecture and card sorting
  • Data synthesis (qualitative & quantitative)

Design & Prototyping

  • Wireframing and interactive prototypes (Figma, PenPot, Axure)
  • Collaborative design and brainstorming (Miro, MilaNote)
  • Responsive web design and mobile-first approach
  • Design systems and component libraries

Technical Implementation

  • Front-end development (HTML/CSS/JavaScript)
  • Modern frameworks (React, Vue)
  • Dynamic SVG creation and graphics optimization
  • Cross-browser testing and accessibility standards

Analytics & Documentation

  • Data visualization (PowerBI, Excel pivot tables)
  • SQL for user behavior analysis
  • Design documentation and user stories
  • Style guides and design standards

Key Strengths

I adapt quickly to shifting project requirements, consistently taking ownership from initial research through to final implementation. My work thrives on close collaboration with both technical and business teams to ensure solutions are well-aligned and user-centered.

Work Case Studies

Sonar Software

2022–2025

Account Overview Redesign

2024-2025

Project Summary

Redesigned a complex, multi-screen account overview page to address user frustration with excessive scrolling and poor performance. Created a customizable card system that improved both user experience and technical performance while satisfying competing stakeholder needs.

The Challenge

The Account Overview page was a critical but problematic interface:

  • User frustration: Frequently-needed data was buried at the bottom of a multi-screen page requiring constant scrolling
  • Performance issues: Page loaded slowly because it queried the database for every card simultaneously — essentially loading an entire account's worth of data at once.
  • Stakeholder tension: Management wanted a redesign, developers flagged technical constraints, users had varying data priorities

My Role & Approach

I took ownership of this project after recognizing that multiple stakeholders were describing different aspects of the same core problem. Rather than treat these as separate issues, I listened to all perspectives and looked for a unified solution.

Research & Synthesis

  • User feedback analysis: Identified that different users needed different data priorities, but all suffered from the "scroll to find" problem
  • Technical investigation: Understood that loading all cards simultaneously created avoidable slowness
  • Stakeholder mapping: Recognized that a customizable solution could address performance, usability, and management goals simultaneously

The Solution

Designed a customizable card system where users could:

  • Select which data cards to display on their dashboard
  • Arrange cards in their preferred order
  • Save these preferences as their default view
  • Return to the system default with one-button reset

Key Design Decisions

  • Progressive loading: Only selected cards query the database, improving performance
  • User control: Customization without losing the ability to return to standard view
  • Minimal learning curve: Preserved existing functionality while adding flexibility

Business Impact

  • Reduced page load times by implementing progressive loading, and by rewriting the loading method for greater efficiency — improving performance even when all cards were displayed
  • Eliminated user complaints about scrolling to find critical information. The success was so clear that users are now requesting this feature on other pages throughout the app.
  • Satisfied management's redesign goals while working within technical constraints
  • Successfully implemented and documented in company help materials

Reflections

This project reinforced the value of listening to multiple stakeholders and looking for systemic solutions rather than addressing symptoms. By treating performance issues and user experience problems as interconnected, I found a solution that improved both while giving users control over their workflow.

The only thing I would do differently is design the new controls to accommodate different screen sizes more gracefully. While the Product directive was desktop-only at the time, a shift toward responsive design happened shortly after implementation. I had actually been advocating for this dynamic approach throughout the app, but chose a conservative solution to ensure smooth adoption during the organizational transition.

FCC Compliance Solution

2022-2023

updates through 2025

Project summary

Designed accessible ISP "nutrition label" generator for regulatory compliance. I created an SVG-based solution that generated leads for 2+ years while helping clients meet federal requirements. This solution was the only competitor offering machine-readable format from launch (a feature recently mandated by the FCC).

The challenge

The FCC mandated regulatory “nutrition label” requirements for ISP data service offerings. While initially considered out of scope, Sonar faced increasing client pressure for a compliance solution with tight regulatory deadlines.

My role & approach

As the sole designer on this project, I:

  • Researched FCC requirements and technical constraints
  • Proposed a dual-purpose solution for client goodwill and lead generation
  • Designed accessible, scalable label formats using SVG with real text
  • Created both client and prospect-facing workflows

Key Design Decisions

  • SVG format over PDF/JPEG: Ensured scalability for print, web accessibility, and machine readability
  • Hybrid solution: CSV data export and a web tool. Full integration wasn’t feasible before the deadline
  • Live preview: HTML/CSS label preview so users could validate before generating
  • Future-proofed accessibility: Machine-readable from launch, avoiding later compliance updates

Business Impact

  • Successfully served existing clients despite resource constraints
  • Generated qualified leads for Sales team (still actively used 2+ years later)
    • Measured Impact: The solution attracted 210 companies in its first year, with 59% representing new business opportunities (92 marketing qualified leads + 32 new prospects). This validated the strategic decision to create a client-goodwill tool that also functioned as a lead generator, successfully balancing support for existing clients with new business development.
  • Only competitor offering SVG output format
  • Sonar avoided compliance issues when the recently FCC updated machine-readability requirements

Reflections

This project taught me the value of advocating for user needs even when projects get deprioritized. By continuing development during downtime and hackathons, we delivered a solution that balanced technical constraints with genuine user value.

Looking back, I now realize the solution could have been even simpler — the SVGs could be generated entirely with client-side JavaScript, eliminating the need for back-end development and server infrastructure. This would have reduced both development time and ongoing maintenance costs while making the tool faster to deploy.

Current public-facing solution

Symcor

2019-2022

I began at Symcor as a Senior Business Systems Analyst, incorporating UI design into my requirements work. To formalize my design skills, I completed a year-long User Experience Design Certificate at University of Toronto while working full-time. This led to a full Senior UI Designer role in 2018, combining analytical and design expertise.

Client project process research

2021

Project summary

Conducted structured interviews with Tier 1 bank clients to identify project delivery pain points. This research challenged internal assumptions about client conservatism and drove organizational shift toward data-driven process improvements.

The challenge

The Client Relations team identified significant friction in project delivery: outdated Word template intake forms, weeks-long estimate processes, insufficient project visibility, and implementation bottlenecks. They needed structured research to understand client pain points and drive internal process improvements.

My role & method

I worked with the Client Relations team to design and facilitate a comprehensive interview study with major Tier 1 bank clients, working alongside Client Relations managers to ensure participant comfort and authentic responses.

Research design

  • 8 one-hour interviews (90 minutes available) representing all major clients
  • Structured question framework with conversational flexibility
  • Journey mapping from intake through implementation
  • Real-time note-taking (recording prohibited for security)

Key Process Innovation

Rather than traditional user interviews, I mapped client feedback to their entire project journey, identifying pain points at each stage and connecting them back to specific client quotes for stakeholder buy-in.

Findings, Impact, and a Surprising Discovery

Clients weren’t change-resistant as assumed — they actively wanted automation and process improvements, bringing prepared notes and requesting regular feedback sessions.

Immediate Outcomes

  • First formal client feedback initiative in company history
  • Cross-team brainstorming sessions generated actionable solutions
  • Clients requested ongoing feedback partnerships
  • Shifted internal culture from assumption-based to data-driven decisions

Organizational Change

The research revealed that perceived client conservatism was actually internal resistance to change. Clients were eager for innovation, challenging long-held assumptions about industry limitations.

Reflections

This project taught me the power of structured client research to drive organizational change. By mapping feedback to the customer journey and presenting data rather than opinions, we transformed how teams approached client needs. The enthusiasm for continued research showed that regular client feedback could become a competitive advantage

Independent work

Beaches Wellness Centre

2021

Project Summary

Beaches Wellness Centre is a well-established chiropractic and registered massage therapy clinic in Toronto’s Beaches neighbourhood. As one of their patients, I went to leave a voicemail for them one day, but first wanted to double-check their hours to make sure I wouldn’t be bothering them right at the end of the day... and discovered they didn’t have a web site.

Since I needed portfolio work I could show in public without violating my employer’s security regulations, I asked if I could make a web site for them, and they agreed.

The Challenge

After some discussions, the proposed site’s goals were determined:

  • Feasible: the site must be low-cost to create and maintain.
  • Accessible: although the business does not fall under AODA regulations, it made sense to implement WCAG 2.1 AA accessibility for a brand-new site.
  • Ease of content management: After initial implementation, the clinic wanted to be able to update the site themselves.
  • Responsive: The design had to be mobile-first, but also support tablet and larger-screen visits.

A brief was created which listed the project goals, constraints, major deliverables, and other major details.

Overarching constraint: COVID placed a lot of restrictions on physical space and time. The clinic’s waiting room was shut down; patients had to wait outside the building before their appointments. The clinic’s volumes also went up, so time to meet with the stakeholders was minimal. It wasn’t unusual for the clinic owner and I to talk about next steps during my appointment, simply because it was the only time we had to discuss anything with each other.

Research

Research focused on three topics:

  • Competition: what do the websites of the other clinics in the neighbourhood look like? what content do they have?
  • Existing patients: what do the existing patients want in a website? What would they find useful? (Note that nearly all clinic patients are referred by word of mouth, so existing patients are considered the primary audience for a site.)
  • Information architecture: in what order should the website provide the content? How should information be grouped? What are the major content topics?

I created a competitive analysis of 13 different clinics, mostly from the neighbourhood, a few in adjacent communities. The analysis noted the purpose of the site, the colour scheme, the main menu items, the core content, what services are offered, and whether or not the site had been updated recently.

Chiropractors are not allowed to compete against each other directly (ie: they can’t say anything like, “Best in Toronto!”), so it was important to find out how to stand out in a way that complied with professional standards.

The analysis revealed that there were two major ways to both stand out as a website and to comply with the standards:

  • Choose a colour scheme which wasn’t the same as the other sites, which tended to draw from a limited set of pallettes
  • Order the information in a way that appealed to patients

I then did a card sort with patient volunteer participants, to determine which menu items were most important to them.

Existing patients: I decided to take advantage of the restrictions COVID had placed on patient access, and use the time waiting outside for appointments to talk to other patients informally and learn what they expected from a website. Sometimes we would look at competition websites together as well.

Information architecture: I used Optimal Workshop (external link) to create a card sorting exercise, based on the most popular menu items revealed in the competitive analysis and topics patients had mentioned. Patients were invited to complete it, and to share the link if they wanted. This gave me enough data to determine the major content for the website, and in how it should be organized.

Having established a creative brief and conducted user research in the first phase of the project, I still needed to research UI elements before I started sketching mock-ups.

Colour scheme: the competitive analysis from the Research phase showed that most competing local sites used blues, greens, oranges, or greys as their major colours. The stakeholders and I both searched independently for inspirational sites to get ideas for a colour scheme, and both of us brought forward different sites with a black & slightly off-white colour scheme with dark gold accents.

Navigation elements: the two menu options for mobile were a hamburger menu, or a button bar at the bottom of the screen. The stakeholders and I agreed to conduct A/B testing to determine which was best.

User Needs and Pain Points

  • They didn’t like having to scroll through multiple screens’ worth of therapy descriptions just to find out a clinic’s office hours or contact information.
  • It was too difficult to find out the clinic address. Many existing patients only visit once every several months and so don’t have the location memorized.
  • Patients weren’t confident they would understand therapy descriptions from a website, and were more comfortable simply discussing them with someone at the clinic on the phone or during an appointment.

Design Decisions

  • It confirmed that mobile-first was the best way to go — many patients just assumed they would be using their phone to access the site, and that they would be using the site en route to an appointment, or when they were otherwise not at home.
  • Patients strongly preferred a one-page layout, so they could thumb-scroll over using links or another navigation method. If they clicked to another page on a sample site, they would try to scroll back to home rather than clicking on the Home link in the menu.
  • Each screen’s worth of information should be tightly-focused and kept to a minimum. Patients didn’t like a lot of content on a screen at once.

By focusing on the data and the research results, very little elements were left up for discussion. Most choices can be traced back to the user research, competitive analysis, and the original brief from the stakeholders.

  • Key information for the home page was identified during the interviews.
  • The results of the card sorting exercise are used to drive the content organization.

Design Process

  • Organized content according to the card sort results
  • Created mini design system using Rangle.io Radius template; create responsive grid
  • Collected assets
  • Developed responsive wireframes (mobile → tablet → desktop)
  • Addressed accessibility (WCAG 2.1 AA) and color contrast challenges
  • A/B tested navigation options (hamburger vs button bar)

After a few initial review rounds with the stakeholders, two versions of the interactive wireframes were tested with patients:

  • Hamburger menu: the traditional hamburger menu was shown at the top of the mobile view, with a menu drawer which appeared when the visitor tapped the hamburger icon.
  • Button bar: a button bar was added to the bottom of the mobile screen, with only the major sections (Home, News, About) shown as buttons.

I made a temporary “secret” link on each version of the home page so that testers could switch between the hamburger menu and button bar solutions easily, showed the vistors how to switch between the two solutions, and asked them to find different sections. The testers also read through the wireframes while chatting with me informally (essentially guerilla testing).

Solution

The prototype was tested on multiple screens with Wellness Centre staff and patients.

Gold text is tricky to implement because it’s in the medium range for hex values and it can be challenging to find sufficient contrast to meet WCAG 2.1 AA standards. This was mitigated by using slightly different shades of gold against the black and white backgrounds to ensure each background had sufficient contrast.

The About section has three subsections, which makes it the longest section. Research indicated it would also be the least-visited part of the site. Therefore, to keep the menu short and simple, the subsections were removed from the main menu. Links at the top of each About subsection allow vistors to navigate quickly within the main section.

The interactive wireframes are available on Figma in three screen widths:

Outcome

The final design solution incorporated feedback from the testing phase and addressed the identified issues. Key features included:

  • A responsive layout that adapts to different screen sizes
  • Clear navigation options that prioritize user needs
  • Accessible design elements that meet WCAG 2.1 AA standards
  • Flexible sections which allowed for easy editing (holiday hours, event messaging)

The design was approved by the client, but they chose not to incoporate it because they already had more patients than they could handle.

Reflections

The conventional wisdom is to sell a small business by showing the products and services available, and then list the contact information/book an appointment as a call to action. The patients I interviewed preferred to find out the contact information and location first, and then contact the clinic to determine if the services fit their needs.

It was noted in the brief that minimal content was preferred by the stakeholders, but the patient interviews indicated content and layout should be even more minimal than previously supposed. Rather than read about the available services on a website, patients reported they would rather have a discussion about it in the context of their personal state of health.

There were never really any major showstoppers in the process because the business owner and other business stakeholders were kept informed throughout the process. The only time I did an experiment on my own was when I redesigned the home page, and even then the feedback loop was strong enough that they were able to choose from the samples I made quickly so we could move on to evaluating the update with guerilla testing.

Using the Radius mini-design system let the stakeholders and I build up a set of design conventions which complied with accessibility standards very quickly and easily.

Contact Me

Want to talk to me about something? The two best ways are via LinkedIn (external link), or by email at katherine.hajer@protonmail.com.

I’ve also been an ADPlist mentor, and have reviews from my mentees on my profile page (external link).

How did I get here? My resume (external link) explains.