Senior UI/UX Designer

Salary: $80,000 - 90,000 per year

Requirements:

• We require 7+ years of experience in web, UI, and UX design.
• We look for 1-2 years of experience in a startup or agency environment.
• We need a portfolio that demonstrates strong range across websites and web/mobile applications, including work with flows, states, and edge cases.
• We expect solid expertise in UX and UI design, including mobile app interface design.
• We value experience building and maintaining design systems and component libraries.
• We need proven ability to estimate time accurately and deliver high-quality work under tight deadlines.
• We require excellent verbal and written communication skills to clearly present the reasoning behind design choices to internal and external stakeholders.
• We look for the ability to explain how design decisions affect development and support business and user goals.
• We expect experience creating information architecture deliverables such as site maps and user flows, with sound judgment on when each is needed.
• We require a high standard for visual QA, including the ability to spot issues in spacing, typography, motion, and state behavior.
• We value experience mentoring and coaching more junior designers.
• Motion and interaction design experience, including tools such as After Effects or Lottie, is a strong asset.
• Comfort discussing HTML and CSS with developers is an advantage.
• Exposure to design analytics such as heatmaps, A/B testing, or Google Analytics is a plus.
• Experience conducting customer interviews is considered beneficial.
• We are looking for a self-starter who can multitask and stay organized in a fast-paced setting.
• We want someone who is collaborative, independently capable, and confident working through ambiguity.
• We value a critical thinker who consistently asks why behind requirements and design decisions.
• We require a calm, confident presence in client-facing conversations.
• We look for someone who is quality-focused, highly organized, detail-oriented, and dependable.
• We require strong time management, precise note-taking, and consistent follow-through.
• We prefer candidates who can reliably commute to Toronto, ON, or are willing to relocate before starting.
• We require prior experience working with a web agency or digital consultancy.

Responsibilities:

• We lead end-to-end design work for web and mobile projects, from early wireframes through polished UI and developer handoff.
• We contribute to client discovery and whiteboarding sessions when bandwidth allows, or independently begin wireframing from scope documents and meeting notes when needed.
• We present wireframe and design concepts to clients and clearly explain the reasoning behind layout, hierarchy, visual direction, and aesthetic decisions.
• We design with logic and user experience in mind, accounting for flows, states, and edge cases throughout the process.
• We collaborate closely with developers, QA, and project delivery managers to ensure strong execution.
• We assess client feedback thoughtfully, implement improvements where they add value, and push back constructively when changes could weaken the design or implementation.
• We maintain a robust design system for long-term clients and create focused style guides for smaller engagements when appropriate.
• We oversee visual QA across desktop, tablet, and mobile, documenting issues related to spacing, typography, responsiveness, scroll behavior, sticky elements, hover states, and more.
• We clearly define responsive behavior so sections adapt appropriately across breakpoints.
• We manage multiple active projects at once with strong prioritization and time control.
• We raise capacity concerns early so deadlines are protected.
• We support a senior, small-team environment and contribute to the growth of the broader design culture.
• We help ensure design outputs align with both business objectives and user needs.

Technologies:

• CSS
• Support
• Marketing
• Mobile
• Web
• UX UI Design
• Excel
• REST

More:

We are Brain Box, an end-to-end digital product design and development agency focused on modern web and mobile applications, e-commerce, and marketing platforms. We thrive on solving complex problems, streamlining messy processes, and introducing intelligent automation that helps teams work better. Our culture is built on creativity, quality, collaboration, integrity, and curiosity, and we value people who ask questions, share ideas openly, and grow quickly in a supportive environment. We offer a hybrid work model in Torontos Liberty Village, with in-office collaboration one to two days per week and standard hours from 10:00 am to 6:00 pm EST, Monday to Friday. Our benefits include four weeks of total time off, health and dental coverage for you and your family, wellness accounts, social hours, team health days, innovation days, weekly lunch delivery, transit reimbursement, nomad work opportunities, commuter benefits, extended health care, life insurance, paid time off, a wellness program, and work-from-home flexibility. We hire based on skills and achievements, and we are committed to a diverse, inclusive team where different backgrounds and perspectives are welcomed.

last updated 29 week of 2026