• Architect and lead the development of next-generation, large-scale machine learning techniques. • Define and execute the ML strategy, identifying opportunities to enhance personalization and recommendation quality across Reddit. • Lead research initiatives on scalable machine learning systems and real-time model adaptation, bringing cutting-edge advancements into production. • Partner with ML infrastructure teams to build high-performance, distributed training systems that efficiently scale across multiple GPUs and cloud environments. • Establish and optimize real-time serving architectures for large-scale embeddings, ensuring low-latency inference and high throughput. • Collaborate cross-functionally with teams in Feed Ranking, Ads, Content Understanding, and Core ML to integrate ML models into Reddit’s key AI-driven systems. • Mentor and guide senior and mid-level ML engineers, fostering a culture of excellence, innovation, and knowledge sharing. • Stay at the forefront of AI research, evaluating and introducing new modeling paradigms to keep Reddit’s ML ecosystem cutting-edge. • Drive technical discussions, present findings to leadership, and contribute to long-term ML planning and decision-making.

Role Description We’re hiring a Product Designer (UX/UI) to own the end-to-end product experience across web and mobile applications. This role combines: - UX research - Product thinking - UI design - Design systems - User experience optimization You’ll work closely with Product Managers and Engineers to create intuitive, scalable, and visually polished digital experiences that improve usability, engagement, and customer satisfaction. If you think in user journeys, flows, and systems — not just screens — this role is built for you. What You’ll Do - UX Research & Product Thinking - Conduct user research, usability testing, and behavioral analysis - Translate insights into personas, journey maps, workflows, and user flows - Identify friction points and recommend UX improvements - Use analytics tools like Mixpanel and Amplitude to support product decisions - UX/UI Design Execution - Design wireframes, prototypes, and high-fidelity user interfaces - Create responsive experiences across web and mobile platforms - Build polished UI experiences aligned with modern SaaS standards - Use Figma, Adobe XD, or Sketch to deliver production-ready designs - Design Systems & Scalability - Build and maintain scalable design systems and component libraries - Define UI standards for typography, colors, spacing, and interaction patterns - Ensure consistency across all product surfaces and features - Improve collaboration between design and engineering teams - Accessibility & User Experience - Design accessible experiences aligned with WCAG 2.1 standards - Ensure usability across devices, browsers, and screen sizes - Create intuitive, user-friendly interfaces that reduce friction and improve engagement - Experimentation & Optimization - Run A/B tests on layouts, user flows, and interaction patterns - Analyze user behavior and improve conversion, retention, and engagement - Iterate quickly based on feedback, analytics, and usability findings - Collaboration & Developer Handoff - Work closely with Product Managers and Engineers throughout the product lifecycle - Deliver developer-ready assets using Figma Dev Mode or Zeplin - Provide clear interaction specs, design documentation, and UI guidance Qualifications - 2+ years of Product Design or UX/UI Design experience - Strong portfolio showcasing: - UX problem-solving - Product thinking - UI execution - Responsive design work - Proficiency with: - Figma - Adobe XD - Sketch - Experience creating: - User flows - Wireframes - Interactive prototypes - Design systems - Strong understanding of: - UX principles - Accessibility - Usability testing - Responsive design Requirements - Nice to Have: - Experience designing: - SaaS products - Consumer applications - Enterprise software - Experience with scalable design systems - Basic front-end knowledge: - HTML - CSS - JavaScript - Familiarity with: - Mixpanel - Amplitude - Product analytics tools Benefits - Full ownership of product and UX/UI design - Direct impact on product experience and customer engagement - Work closely with Product and Engineering teams - Opportunity to shape scalable design systems - Strong growth opportunities into: - Senior Product Designer - Design Lead - Head of Design What a Typical Day Looks Like - Conduct UX research and analyze user behavior - Design wireframes and high-fidelity interfaces - Build prototypes and improve user flows - Collaborate with Product Managers and Engineers - Maintain and expand design systems - Run usability tests and optimize experiences based on feedback Key Metrics (KPIs) - Improved usability and user satisfaction - Increased engagement and retention - Reduced friction in user flows - On-time delivery of design assets - Adoption and consistency of design systems - Reduced implementation issues for developers Apply Now If you: - Think in user journeys and product experiences - Combine UX thinking with strong visual design - Use data and feedback to improve products - Care deeply about usability, accessibility, and scalable systems This role is a strong fit for you.

• Accountable for design systems quality and on-time delivery • Directly supervises Systems Designers • Oversees design, prototyping, and iteration of gameplay systems • Collaborates with Gameplay Programming counterparts • Writes and updates gameplay system documentation • Maintains systems design schedule and prioritizes work • Reviews design work and drives iteration and quality

• Analyze existing application architectures, system workflows, integrations, and business processes to identify gaps and optimization opportunities. • Gather, document, and translate business requirements into detailed functional and technical specifications. • Develop system design documents, process flow diagrams, data flow diagrams (DFDs), use cases, and interface specifications. • Evaluate system performance, scalability, and reliability, recommending technology enhancements and modernization strategies. • Collaborate with architects, developers, data engineers, and QA teams to design and implement enterprise-grade solutions. • Lead end-to-end technology projects including application implementations, cloud migrations, data platform initiatives, and system integrations. • Define project scope, technical deliverables, milestones, resource plans, and implementation roadmaps. • Manage Agile/Scrum ceremonies including sprint planning, backlog grooming, stand-ups, and retrospectives. • Track project progress, dependencies, technical risks, and mitigation plans. • Coordinate cross-functional teams including development, infrastructure, data engineering, cybersecurity, and business teams. • Ensure successful deployment, testing, and production release of technology solutions. • Analyze and document system interfaces, and data integration workflows. • Collaborate with development teams to define integration requirements between enterprise applications and cloud platforms. • Support data mapping, transformation logic, and data quality validation activities. • Support cloud transformation initiatives involving AWS, Azure, or GCP environments. • Work with infrastructure and platform teams to ensure system reliability, security, and scalability. • Evaluate emerging technologies and recommend solutions to improve operational efficiency and business outcomes. • Ensure compliance with enterprise architecture standards, security controls, and governance frameworks. • Develop and maintain technical documentation, architecture diagrams, requirement traceability matrices, and project artifacts. • Create project dashboards, status reports, and executive presentations to communicate progress and risks. • Establish KPIs and monitoring metrics to measure system performance and project success. • Support audit, compliance, and governance activities through proper documentation and controls.