To succeed in the Justworks interview loop, you must understand exactly what is being evaluated at each key stage. The team looks for a balance of strategic thinking, visual craft, and collaborative execution.
Portfolio Presentation
The portfolio presentation is your opportunity to showcase your best work and demonstrate your end-to-end design process. You will typically present to a panel of designers, product managers, and engineering leads. Strong performance in this round means showing that you can frame a problem clearly, navigate ambiguity, and drive measurable outcomes.
Be ready to go over:
- Problem Definition – How you identified the user need and aligned it with business goals.
- Iterative Exploration – The different directions you explored, why you discarded certain paths, and how you incorporated feedback.
- Cross-functional Alignment – How you partnered with PMs and Engineers to bring the product to life within technical constraints.
- Advanced concepts (less common) – Designing for multi-sided marketplaces, handling complex data tables, and setting up post-launch analytics frameworks.
Example scenarios:
- Presenting a case study where you had to redesign a legacy system with high user resistance to change.
- Explaining how you used user research to pivot a product direction mid-way through the design cycle.
Design Exercise
The design exercise evaluates your hands-on execution, layout skills, and interaction design patterns in real-time or through a take-home challenge. Interviewers want to see how you structure your workspace, utilize design components, and apply visual hierarchy to solve a specific user problem.
Be ready to go over:
- Information Architecture – How you organize and prioritize information on the screen to prevent user cognitive overload.
- Interaction Patterns – Your choice of UI components (e.g., modals, dropdowns, progressive disclosure) and why they fit the user's task.
- Visual Polish – Your attention to detail in typography, spacing, and alignment.
- Advanced concepts (less common) – Designing for WCAG AA accessibility standards, creating responsive layouts for mobile and desktop, and leveraging design system tokens.
Example scenarios:
- Designing a clear, multi-step wizard that guides a small business owner through onboarding their first employee.
- Creating an intuitive dashboard widget that alerts a user to critical compliance deadlines without causing unnecessary panic.
Cross-Functional Collaboration
This round focuses on your ability to work within an agile product squad. You will talk with engineering and product management partners to discuss how you negotiate scope, hand off designs, and maintain high quality during implementation.
Be ready to go over:
- Scope Negotiation – How you decide what makes it into an MVP versus what gets deferred to future phases.
- Developer Handoff – Your process for preparing Figma files, documenting redlines, and communicating interaction states to engineers.
- Product Strategy – How you contribute to the product roadmap beyond just executing design tickets.
Example scenarios:
- Describing how you resolved a disagreement with an engineering lead who argued that your proposed design was too difficult to build.
- Explaining how you worked with a product manager to define key success metrics for a newly launched feature.