Principal Product Designer

About the role

Block is seeking a Principal Product Designer to join the Square Point of Sale team. You will lead the evolution of core commerce experiences for both sellers and buyers by integrating new technologies and design systems. In this capacity, you will own the strategic design vision that defines how sellers interact with commerce at the point of sale. You will be responsible for shaping the future of buyer experiences within the Square Point of Sale ecosystem. Your work will directly influence the reliability and clarity of transactional moments for a global user base. You will act as a design authority, ensuring that every interaction adheres to rigorous standards of usability and accessibility. This role requires a thinker who can balance high-level product strategy with the details of execution. You will translate complex business goals into coherent, intuitive design solutions that resonate with diverse users.

Key facts

What you'll do

• Direct high-level design initiatives to establish new standards for the Point of Sale platform.
• Utilize prototyping to visualize concepts, secure stakeholder buy-in, and guide projects from initial vision to final shipment.
• Partner with product, engineering, and design leadership to define long-term strategy and execution plans.
• Conduct deep user research to uncover latent needs and translate findings into actionable design requirements.
• Define and maintain design systems that ensure consistency, scalability, and efficiency across the entire product suite.
• Apply motion design principles to enhance clarity, provide feedback, and improve the perceived performance of interactions.
• Leverage emerging AI concepts to explore novel product design workflows and user experiences.
• Analyze complex problems, synthesize data, and present clear, evidence-based design recommendations to stakeholders.
• Collaborate closely with engineering teams to ensure designs are feasible, maintainable, and implemented with fidelity.
• Advocate for the end-user throughout the product development lifecycle to safeguard quality and usability.
• Explore opportunities to integrate new technologies into the Point of Sale workflow to create differentiated seller experiences.
• Mentor other designers by providing constructive feedback and fostering a culture of continuous learning.
• Evaluate the success of design implementations through metrics and user feedback to drive iterative improvements.
• Act as the primary design partner for key strategic initiatives within the Square Point of Sale organization.

Requirements

• Demonstrated proficiency in visual and interaction design with a strong emphasis on systems thinking and design operations.
• Possess extensive experience applying AI concepts to product design, workflows, and user research activities.
• Show a proven ability to utilize motion design to improve user interaction, accessibility, and perceived performance.
• Have a history of successful cross-functional collaboration with product and engineering teams in a fast-paced environment.
• Exhibit mastery over industry-standard design tools and prototyping software to articulate complex ideas effectively.
• Bring a strong portfolio showcasing your ability to design complex, data-driven products for professional users.
• Display exceptional communication skills, capable of articulating design rationale to both technical and non-technical audiences.
• Demonstrate comfort working within ambiguous constraints and navigating rapidly evolving project requirements.
• Commit to adhering to the highest standards of accessibility and inclusive design in all deliverables.

Nice to have

• Preferred items are not specified for this role.

Practical notes

• Block uses a market-based pay approach with four geographic zones.
• Candidates may submit up to 9 active applications within a 60-day window.
• Reapplications for the same position are permitted 90 days after a previous review.
• The company utilizes automated AI tools to assist in the application evaluation process.
• Benefits include remote work options, medical insurance, flexible time off, retirement plans, and family planning support.
• The role was posted on 07/16/26; while there is no fixed deadline, typical hiring cycles for U.S. roles last approximately 55 days.