Product Designer

📍 Job Overview

Job Title: Product Designer

Company: Simile

Location: Palo Alto, California, United States

Job Type: FULL_TIME

Category: Product Design / User Experience

Date Posted: 2026-08-18

Experience Level: Mid-Senior Level (5-10 years inferred)

Remote Status: On-site

🚀 Role Summary

• Drive end-to-end product design for novel, 0-to-1 product surfaces, defining new interaction paradigms for complex simulation outputs.

• Translate probabilistic concepts, uncertainty, and confidence scores into highly legible and actionable interfaces for enterprise decision-makers.

• Own both high-craft visual design and the underlying information architecture, interaction models, and system composition.

• Contribute directly to front-end development with AI tooling and engineering support to ensure design intent is realized in production.

• Evolve and scale the design system to support a growing multi-product architecture and maintain quality across new features.

📝 Enhancement Note: The role's emphasis on "0-to-1 design problems," "defining the interaction model rather than inheriting one," and "making complexity legible" strongly suggests a need for a designer who can operate with significant ambiguity and invent new solutions, rather than simply iterating on existing patterns. The requirement to "Ship code" and "move between systems and craft" indicates a highly integrated design and development process, common in fast-paced, early-stage tech companies. The "Product Designer" title combined with "enterprise product experience" and "complex data" points towards a role that bridges user experience (UX) and user interface (UI) design with a strong analytical component, often seen in operations-adjacent technology.

📈 Primary Responsibilities

• Conceptualize and design entirely new product features and interfaces for complex simulation outputs, where no established patterns exist.

• Develop intuitive information architectures and interaction models that make probabilistic concepts, uncertainty, and confidence scores easily understandable for sophisticated enterprise users.

• Execute high-craft visual design, including typography, motion, and micro-interactions, to create a polished and trustworthy user experience.

• Collaborate closely with engineering teams, leveraging AI tooling and direct front-end contributions, to ensure accurate implementation of designs.

• Contribute to the strategic development and expansion of the company's design system to ensure consistency and quality as the product suite grows.

• Translate complex data outputs, such as simulation results and confidence scores, into clear and actionable visualizations for high-stakes decision-making.

• Conduct user research and gather feedback to iterate on designs and ensure they meet the needs of Fortune 100 executives and their critical business decisions.

• Define and refine edge cases and the composition of features to ensure a robust and coherent product experience.

📝 Enhancement Note: The explicit mention of "0-to-1 problems," "defining the interaction model," and "shipping code" indicates a hands-on role where the designer is expected to be a primary driver of new product development, not just an executor of pre-defined requirements. The emphasis on "clarity is the product" and making "probabilistic concepts... structurally sound and visually obvious" points to a deep understanding of how to represent abstract data and uncertainty in a usable format, a critical skill in data-intensive and simulation-focused operations.

🎓 Skills & Qualifications

Education: While not explicitly stated, a Bachelor's or Master's degree in Design, Human-Computer Interaction, Computer Science, or a related field is typically expected for this level of role. Equivalent practical experience will also be considered.

Experience: 5-10 years of professional product design experience, with a strong emphasis on enterprise software and complex data interfaces.

Required Skills:

• Proven experience in designing novel products or features from inception (0-to-1), without pre-existing reference points.

• Demonstrated strength in both high-craft visual design and robust systems design, including information architecture and interaction modeling.

• Experience designing for enterprise customers, understanding their workflows, high-stakes environments, and complex data requirements.

• Ability to articulate design decisions clearly, take a strong position, and maintain a high standard of quality while working at a fast pace.

• Proficiency in core design tools (e.g., Figma, Sketch, Adobe Creative Suite) for wireframing, prototyping, and high-fidelity visual design.

• Experience with front-end development concepts and the ability to contribute code (e.g., HTML, CSS, JavaScript, or frameworks like React) to implement designs.

• Understanding of design system principles and experience in contributing to or evolving them.

• Strong analytical and problem-solving skills to translate complex data and abstract concepts into user-friendly interfaces. Preferred Skills:

• Prior experience in a startup environment, especially in early-stage companies or as a founding team member.

• Experience designing for AI-native or agentic products, understanding the unique challenges and opportunities.

• Expertise in designing data-dense interfaces, such as analytics platforms, research tools, or business intelligence dashboards.

• A demonstrable interest in behavioral research, social science, or the underlying principles of how models of human behavior are constructed.

• Familiarity with AI tooling that aids in design or development processes.

• Experience with motion design and advanced typography to enhance user experience.

📝 Enhancement Note: The "Must Haves" clearly delineate a designer who is a hybrid of visual craft, systems thinking, and front-end execution, with a specific focus on complex enterprise problems. The "Nice to Haves" suggest a company that values deep domain understanding and a proactive, entrepreneurial mindset.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase at least one significant 0-to-1 product or feature design project, detailing the problem, your unique approach, the design process, and the final outcome.

• Include examples demonstrating both high-craft visual design execution (e.g., UI details, branding integration) and underlying system design (e.g., information architecture, interaction flows, component logic).

• Present case studies of enterprise product design, highlighting your understanding of complex data, expert users, and high-stakes workflows.

• Clearly articulate your design rationale, decision-making process, and how you've addressed challenges related to complexity and user trust.

• Demonstrate your ability to translate abstract concepts or complex data into clear, actionable interfaces. Process Documentation:

• For each portfolio project, clearly outline the design methodology employed, including research, ideation, prototyping, and testing phases.

• Provide examples of how you've documented design systems, interaction models, and key architectural decisions.

• Illustrate how you have collaborated with engineering and product teams, including examples of design handoff and iterative feedback loops.

• If applicable, include examples of front-end contributions or how you've worked to ensure design fidelity during implementation.

📝 Enhancement Note: For a role emphasizing "0-to-1 design" and "shipping code," the portfolio needs to go beyond static mockups. It must tell a story of innovation, problem-solving in ambiguity, and tangible contribution to a product's development, including its front-end realization. The ability to demonstrate a structured approach to designing for complexity and enterprise users is paramount.

💵 Compensation & Benefits

Salary Range: $200,000 – $300,000 USD per year.

📝 Enhancement Note: This salary range is at the higher end for a Product Designer role in Palo Alto, California, reflecting the company's significant funding ($200M+ at a $2B valuation), early-stage but high-growth status, and the critical nature of the role. The specified range aligns with senior-level product design positions in leading tech companies in the Bay Area, particularly those focusing on AI and enterprise solutions. The note about final offers being based on experience, skills, and interview performance is standard for such roles.

Benefits:

• Competitive Base Salary: As indicated in the range.

• Equity: Stock options or grants are available, offering potential for significant long-term financial upside aligned with company growth.

• Health & Wellness: Comprehensive medical, dental, and vision insurance plans to cover employees and potentially dependents.

• Time Off: Flexible time off policies, promoting work-life balance and allowing employees to take time when needed.

• Professional Development: Opportunities to work with cutting-edge AI technology and contribute to foundational models, offering unique learning experiences.

Working Hours: Standard full-time hours, typically around 40 hours per week, with an expectation of dedication and responsiveness given the fast-paced startup environment.

📝 Enhancement Note: While a standard 40-hour work week is implied, the startup context and the nature of "owning significant product surfaces end to end" suggest that flexibility and a commitment beyond strict hours may be necessary, especially during critical project phases.

🎯 Team & Company Context

🏢 Company Culture

Industry: Artificial Intelligence (AI), Simulation Technology, Enterprise Software, Data Analytics, Behavioral Science.

Company Size: 50+ employees. This indicates a relatively small, agile team with a high degree of individual impact and a flat organizational structure, common in rapidly scaling startups.

Founded: Launched five months prior to the job posting date (August 2026). This signifies a very early-stage company with immense potential for growth and innovation, where early hires play a pivotal role in shaping the company's trajectory.

Team Structure:

• The role is within the "Product & Design team," suggesting close collaboration with product management and engineering.

• As an early-stage company, the team is likely lean, with individuals wearing multiple hats and cross-functional collaboration being essential.

• The reporting structure is not explicitly detailed but would likely be to a Head of Product, Head of Design, or CTO, given the company's stage. Methodology:

• Focus on building foundational AI models for human behavior and simulation.

• Data-driven decision-making, evidenced by "tens of millions of simulations" and a "confidence model."

• Emphasis on innovation and creating new product categories ("0-to-1 problems").

• High standards for product quality and user experience, with "clarity is not a nice-to-have; it is the product."

• Rapid iteration and growth, having scaled revenue 5x and grown the team significantly since launch.

Company Website: https://simile.ai

📝 Enhancement Note: The company's rapid growth, significant funding, and ambitious mission to "simulate all eight billion people on earth" indicate a high-energy, mission-driven environment. The emphasis on AI, simulation, and understanding human behavior places Simile at the forefront of emerging technologies with broad enterprise applications. The small team size means individuals will have substantial autonomy and influence.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned as a Senior Product Designer, potentially leading to Principal Designer or Design Lead roles as the company scales. The emphasis on owning "significant product surfaces end to end" and "0-to-1 problems" indicates a high level of responsibility and autonomy typically associated with senior or lead individual contributors.

Reporting Structure: The Product Designer will likely report to a Head of Product or Head of Design. Collaboration will be tight with Product Managers and Engineering leads, forming a core product development triad.

Operations Impact: While not a traditional "operations" role, this Product Designer will directly impact the usability and adoption of a highly technical product that informs critical business decisions for F100 enterprises. The designer's ability to make complex simulation data "legible" and "trustworthy" is crucial for the operational success of Simile's clients. The designer's work directly enables better strategic planning, market entry, and financial forecasting for these organizations.

Growth Opportunities:

• Technical Depth: Deepen expertise in designing for AI, simulation, and complex data visualization, a niche and in-demand skill set.

• Product Leadership: Grow into a leadership position, potentially managing a design team or owning larger product areas as Simile scales.

• Startup Experience: Gain invaluable experience in a high-growth, well-funded startup environment, learning about rapid product development, fundraising, and scaling a company.

• Design System Evolution: Play a key role in building and scaling a design system from its early stages, a significant contribution to long-term product quality.

• Cross-functional Influence: Influence product strategy and roadmap through design expertise and user advocacy.

📝 Enhancement Note: The role offers a unique opportunity to shape the user experience of a groundbreaking AI product. The growth path is clear for individuals who can deliver high-impact design work and adapt to the fast-paced demands of a rapidly scaling tech company. The "operations impact" is indirect but profound, as the product itself aims to improve the operational decision-making of large enterprises.

🌐 Work Environment

Office Type: The job is listed as "On-site," implying a physical office presence is required in Palo Alto, California. This suggests a collaborative environment where in-person brainstorming and team interaction are valued.

Office Location(s): Palo Alto, California, United States. This location places Simile in the heart of Silicon Valley, surrounded by a rich ecosystem of tech talent, venture capital, and innovation.

Workspace Context:

• Collaborative Environment: Being on-site fosters direct interaction, spontaneous discussions, and stronger team cohesion, which is crucial for tackling complex design challenges.

• Tools and Technology: Access to modern design and development tools, likely including AI-assisted design tools, robust prototyping software, and potentially internal development environments.

• Team Interaction: Frequent opportunities to collaborate with engineers, product managers, researchers, and potentially founders, facilitating rapid iteration and shared understanding.

• Focus on Craft: The emphasis on "typography, motion, and detail" suggests an environment that values high-quality execution and attention to detail in the product.

Work Schedule: Standard full-time, on-site work hours are expected. However, the startup culture may necessitate flexibility to meet project deadlines and respond to urgent needs.

📝 Enhancement Note: An on-site role in Palo Alto for a well-funded AI startup suggests a dynamic and potentially intense work environment. The physical proximity likely facilitates the rapid problem-solving and iterative design processes required for "0-to-1" product development.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: Review of application materials, focusing on portfolio and resume for relevant experience in 0-to-1 design, enterprise products, and visual/systems design.

• Portfolio Presentation & Discussion: A deep dive into selected portfolio projects. Be prepared to articulate your design process, rationale, trade-offs, and the impact of your work. Expect questions about how you handle complexity, ambiguity, and high-stakes decision-making.

• Design Exercise/Challenge: Potentially a take-home assignment or an in-person/virtual design challenge to assess problem-solving skills, design thinking, and ability to translate abstract concepts into tangible solutions. This may involve designing for a complex dataset or a novel interaction.

• Engineering/Product Collaboration Discussion: Conversations with engineering and product management to assess collaboration style, understanding of technical constraints, and ability to effectively communicate design intent.

• Cultural Fit Interview: Discussion with founders or senior leadership to evaluate alignment with Simile's mission, values, and fast-paced startup culture.

Portfolio Review Tips:

• Highlight 0-to-1 Successes: Clearly present projects where you've defined new product categories or interaction models. Emphasize the "why" and "how" of your innovative solutions.

• Showcase Complexity Management: Detail how you've designed for complex data, abstract concepts (like simulation outputs or confidence scores), and expert enterprise users. Use visuals to make this clear.

• Demonstrate Visual and Systems Craft: Ensure your portfolio visually represents high-quality UI design and clearly explains the underlying structure, information architecture, and interaction design.

• Explain Your Rationale: Be ready to defend your design choices, discuss trade-offs, and articulate the user and business value of your solutions.

• Include Code Contributions: If possible, highlight projects where you contributed to front-end development, showcasing your ability to bridge design and implementation.

• Tailor to Simile: Research Simile's product and mission. Frame your experience and portfolio examples to resonate with their focus on simulation, AI, and understanding human behavior.

Challenge Preparation:

• Familiarize yourself with concepts of simulation, probabilistic modeling, and AI-driven decision-making.

• Practice translating abstract data or complex scenarios into user flows and wireframes.

• Be prepared to present your thought process clearly and concisely, focusing on problem-solving and iterative design.

• Consider how you would approach designing for a Fortune 100 executive making a nine-figure decision based on uncertain data.

📝 Enhancement Note: The interview process is designed to rigorously assess a candidate's ability to handle ambiguity, design for complexity, and contribute directly to product development. The portfolio is critical and must showcase tangible evidence of innovative design work in challenging domains.

🛠 Tools & Technology Stack

Primary Tools:

• Design & Prototyping: Figma, Sketch, Adobe Creative Suite (Photoshop, Illustrator, After Effects for motion).

• Collaboration: Slack, Notion, Jira, Confluence.

• Front-end Development: HTML, CSS, JavaScript. Experience with a modern JavaScript framework (e.g., React, Vue, Angular) is highly probable given the company's tech stack and the role's requirement to ship code.

• AI Tooling: While specific tools aren't named, expect exposure to AI-powered design assistants, code generation tools, or platforms related to simulation and data analysis.

Analytics & Reporting:

• Tools for understanding user behavior and product performance, potentially including Amplitude, Mixpanel, Google Analytics, or internal dashboards.

• Data visualization libraries and tools for creating compelling representations of simulation outputs and confidence scores. CRM & Automation:

• Less directly relevant for a Product Designer, but understanding how CRM data might feed into simulation models or how design impacts sales/marketing enablement could be beneficial.

📝 Enhancement Note: The emphasis on "shipping code" and "AI tooling" suggests a modern, integrated tech stack. Proficiency in a leading design tool like Figma, coupled with front-end development skills, is essential. Experience with data visualization and potentially AI-enhanced design workflows would be a significant advantage.

👥 Team Culture & Values

Operations Values:

• Mission-Driven: A strong commitment to the ambitious goal of simulating human behavior at scale.

• Innovation & Pioneering: A culture that encourages creating new categories and pushing technological boundaries.

• Excellence & Craft: High standards for product quality, detail, and user experience.

• Clarity & Precision: Valuing clear communication, logical reasoning, and accurate representation of complex information.

• Collaboration & Speed: Working effectively in a fast-paced, cross-functional environment to ship impactful products quickly.

• Data-Informed: Utilizing data and simulation outputs to drive design and product decisions.

Collaboration Style:

• Cross-functional Integration: Close partnership between Design, Product, and Engineering is fundamental, especially given the requirement to ship code.

• Direct Communication: An open and direct communication style is likely encouraged, facilitating rapid feedback and problem-solving.

• Iterative Design: A culture of continuous feedback, prototyping, and iteration to refine designs and product features.

• Knowledge Sharing: Encouraging the sharing of insights, best practices, and learnings across the team to foster collective growth.

📝 Enhancement Note: The culture at Simile appears to be one of high performance, intense focus, and a shared passion for a groundbreaking mission. Designers are expected to be proactive, collaborative, and deeply involved in the product development lifecycle, contributing not just visually but also strategically and technically.

⚡ Challenges & Growth Opportunities

Challenges:

• Designing for Ambiguity: Tackling novel problems with no existing blueprints requires significant creative problem-solving and the ability to define new interaction paradigms.

• Representing Complexity: Translating abstract, probabilistic concepts like simulation outputs and confidence scores into user-friendly, trustworthy interfaces for high-stakes decisions is a significant design challenge.

• Balancing Craft and Speed: Maintaining high visual and interaction quality while working within the rapid iteration cycles of a fast-growing startup.

• Scaling the Design System: Evolving a design system to support a growing product suite and team, ensuring consistency and maintainability.

• Integrating AI in Design: Effectively leveraging AI tooling to enhance design productivity and explore new design possibilities.

Learning & Development Opportunities:

• Cutting-Edge AI and Simulation: Gaining deep expertise in designing for advanced AI models and simulation technologies.

• 0-to-1 Product Innovation: Developing a strong track record in creating entirely new product categories and user experiences.

• Enterprise Design Mastery: Honing skills in designing for complex data, expert users, and high-value business decisions.

• Startup Growth Experience: Learning firsthand how to scale a product and a company in a well-funded, high-growth environment.

• Leadership Potential: Opportunities to grow into design leadership roles as the company expands.

📝 Enhancement Note: The challenges presented are directly tied to the innovative nature of Simile's product and its early-stage status. Overcoming these challenges offers significant opportunities for professional growth and skill development in highly sought-after areas of product design.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you designed a product or feature where there was no existing reference point. What was your process and what was the outcome?" (Focus on your 0-to-1 experience, problem-solving, and innovation.)

• "How would you approach making simulation outputs and confidence scores legible and trustworthy for a Fortune 100 executive making a nine-figure decision?" (Demonstrate your understanding of complex data visualization, enterprise needs, and building trust.)

• "Walk me through a project where you owned both the high-level information architecture and the detailed visual design. How did you ensure consistency and quality across both?" (Highlight your systems and craft capabilities.)

• "Describe your experience designing for enterprise software. What are the key differences compared to consumer products?" (Showcase your understanding of expert users, complex workflows, and high-stakes environments.) Company & Culture Questions:

• "Why Simile? What excites you about our mission to simulate human behavior?" (Show genuine interest in the company's vision and technology.)

• "How do you handle ambiguity and rapid change, common in early-stage startups?" (Relate to the company's fast-paced growth and 0-to-1 product development.)

• "Describe your ideal collaboration dynamic with product managers and engineers." (Emphasize your ability to partner effectively and contribute to a cohesive product team.)

• "How do you ensure your designs are not only aesthetically pleasing but also functionally robust and scalable?" (Connect to the design system and front-end contribution aspects.) Portfolio Presentation Strategy:

• Structure Your Narrative: For each case study, clearly define the problem, your role, the constraints, your process, the solutions, and the impact. Use a consistent storytelling framework.

• Emphasize the "Why": Articulate the reasoning behind your design decisions, the trade-offs you considered, and how your solutions addressed the core user and business needs.

• Show, Don't Just Tell: Use high-fidelity visuals, interactive prototypes, and clear annotations to illustrate your design work. For 0-to-1 projects, show the evolution from concept to execution.

• Quantify Impact: If possible, include metrics or outcomes that demonstrate the success of your designs (e.g., user adoption, task completion rates, engagement).

• Highlight Technical Contributions: If you shipped code, be prepared to discuss your front-end contributions and how they ensured design fidelity.

• Be Prepared for Deep Dives: Anticipate detailed questions about specific design choices, technical challenges, and your understanding of the underlying technology (AI, simulation).

📝 Enhancement Note: Interview preparation should focus on showcasing innovation, problem-solving for complexity, and a hands-on approach to design and development. Candidates need to demonstrate not just design skills but also strategic thinking and a cultural fit for a high-growth startup environment.

📌 Application Steps

To apply for this Product Designer position:

• Submit your application through the provided link on Ashby.

• Tailor Your Resume and Portfolio: Highlight specific experiences related to 0-to-1 product design, enterprise software, complex data visualization, and any front-end development contributions. Ensure your portfolio clearly showcases these areas with detailed case studies.

• Prepare Your Portfolio Walkthrough: Be ready to present 2-3 key projects that best demonstrate your qualifications, focusing on your process, rationale, and the impact of your work, especially for novel or complex challenges.

• Research Simile Thoroughly: Understand their mission, product, target audience (F100 executives), and recent achievements. Frame your application and interview responses to align with their values and goals.

• Anticipate Design Challenges: Practice thinking through how you would approach designing for abstract data, probabilistic concepts, and high-stakes business decisions, as these will likely be core to interview exercises.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.