Human-Computer Interaction Designer - San Francisco

Join our dynamic team at plaud as a Human-Computer Interaction Designer, where your creativity and technical skills will shape the future of user experiences. In this role, you will collaborate with cross-functional teams to design intuitive interfaces and enhance user satisfaction through innovative design solutions.

Join Ando as a Design Engineer, where you will dive deep into the world of experimental interfaces and tackle human-computer interaction challenges, particularly those related to multi-human and multi-agent interactions.About AndoAt Ando, we are pioneering the future of communication by developing agents that enhance collaboration across platforms like Slack and email. Our mission is to completely rethink these mediums to facilitate more effective human-AI collaboration.Why Choose Ando?You thrive in dynamic, early-stage environments, and appreciate the unforgettable experiences that come from close-knit teamwork.You are excited about creating software that reaches hundreds of thousands of users, rather than just enterprise solutions.You want to deliver your best work alongside talented colleagues who inspire you to grow and contribute to shaping a remarkable team culture.Your ResponsibilitiesDesign and implement user interfaces that our team and users interact with on a daily basis.Conduct user behavior observations and develop experimental interfaces to meet their implicit needs.Adapt quickly and efficiently, discarding unsuccessful interface experiments when necessary.Create compelling prompts that enhance user interaction with our agents.Elevate our standards for engineering and design quality and assist in the recruitment of top talent.

Wispr Flow builds technology that makes device interaction feel natural and intuitive. The team’s work centers on voice dictation, aiming to make it more accurate and responsive than traditional keyboard input. The platform adapts to each user’s context, delivering reliable results whether on desktop or mobile. Looking ahead to 2026, Wispr Flow plans to move beyond voice dictation, developing new ways for users to take action through their devices. The goal is to create a system that not only understands intent but also responds with helpful, timely actions. Team and culture The company brings together AI researchers, designers, engineers, and growth specialists who share a commitment to reimagining how people interact with technology. Collaboration is open and direct, with a focus on transparency, user needs, and careful attention to detail. Team members value honest discussions and seek to make a measurable impact. Growth and backing Wispr Flow has achieved over 150% revenue growth each quarter for the past year. The company has raised $81 million from leading venture capital firms and respected angel investors, supporting its mission and future plans.

Company OverviewEcho Neurotechnologies is an innovative startup operating in the Brain-Computer Interface (BCI) sector, committed to transforming lives through state-of-the-art hardware engineering and artificial intelligence solutions. Our goal is to create pioneering technologies that empower individuals with disabilities, enhancing their independence and overall quality of life.Team CultureBecome part of a small yet passionate team of skilled professionals dedicated to advancing our mission. In our early-stage environment, you'll have the chance to make impactful decisions that resonate throughout the organization. We promote a culture of continuous learning and professional development, encouraging collaboration across various functions where your contributions are crucial to our success.Job DescriptionWe are looking for a talented Interaction Designer to join our expanding team. In this role, you will have a direct influence on the experiences of patients and clinicians as you shape the design of a sophisticated connected medical device. Your expertise in service design, UI/UX, product design, and design research will be pivotal in tackling intricate usability challenges within a regulated environment.Role ResponsibilitiesDesign and refine core user flows for a complex software application.Define UI/UX specifications throughout the product experience.Develop and manage a cohesive design system.Collaborate cross-functionally to balance product, hardware, software, clinical, and regulatory requirements.Ensure adherence to relevant medical software standards and regulations.Document design decisions and key processes.

Why Join Our Team?At Brex, we are revolutionizing the way businesses manage their spending. Our AI-driven spend platform empowers companies with integrated corporate cards, banking services, and global payment solutions, alongside user-friendly software for travel and expenses. From startups to established enterprises like DoorDash, Flexport, and Compass, thousands of companies rely on Brex to take control of their spending, reduce costs, and enhance operational efficiency on a global scale.Joining Brex means pushing your boundaries, challenging the norm, and collaborating with some of the industry's brightest talents. We are dedicated to cultivating a diverse and inclusive culture, where your potential is only limited by your aspirations. We provide the necessary tools, resources, and support to help you develop your career.The Design Team at BrexOur design team is focused on creating seamless experiences that simplify complex systems through thoughtful and scalable design. Whether it's developing interfaces, shaping product strategies, or leveraging AI to empower users, we prioritize quality and clarity. This is a creative environment where designers thrive by crafting solutions for ambitious clients.Your RoleWe are seeking a Senior Brand Designer to join our multidisciplinary design team that includes product designers, brand designers, content designers, and marketing strategists. Our mission is to build a category-defining brand while significantly impacting key business metrics through exceptional creative output.In this role, you will steer and execute various creative projects encompassing marketing materials, digital experiences, out-of-home advertising, communication strategies, and environmental design. Collaboration is key as you will work closely with marketing leaders, web and product teams to deliver impactful brand marketing campaigns. You are a strategic thinker and a creative problem-solver, with an eye for detail that ensures the final product is polished to perfection.

Technical Staff MemberAt humans&, we are dedicated to pioneering a human-centric approach to artificial intelligence. Our mission is to redefine AI by placing individuals and their interpersonal connections at the heart of our innovations.We invite talented researchers and engineers who have made significant contributions to the cutting-edge of AI to join our dynamic team. If you excel in your field and are driven to innovate, we want to hear from you!

About TacitTacit is an innovative deep tech startup located in the heart of San Francisco, pioneering hardware solutions that redefine human-computer interaction. Supported by prominent investors such as General Catalyst, Khosla Ventures, and Greylock Partners, our founding team comprises experts from esteemed organizations like Stanford, BrainGate, Oculus, and Tesla. While our groundbreaking products are still under wraps, our team is dedicated to tackling formidable engineering challenges to revolutionize the tech landscape.About the RoleWe are looking for an enthusiastic Software Engineering Intern to contribute to the development of the next generation of human-computer interfaces. This internship offers invaluable hands-on experience in both front-end and back-end development, focusing on creating user-centric applications and aiding internal research processes. You will collaborate closely with a talented team of engineers, designers, and researchers to bring innovative interaction paradigms to fruition.Key ResponsibilitiesDesign and implement applications for web, mobile, and embedded clients that interface with our hardware.Build backend services for real-time interaction and seamless data streaming.Develop internal tools for data labeling, visualization, and debugging purposes.Rapidly prototype new user experiences utilizing novel input methods.Collaborate with full-time engineers to deploy stable, high-performance software solutions.Document engineering insights and articulate design decisions effectively.Preferred QualificationsProficiency in Python, TypeScript, React, Linux, and command-line development.Demonstrated ability to work independently, with a strong sense of flexibility and resourcefulness.Excellent communication and teamwork skills.Ability to thrive in a fast-paced startup environment, with a keen interest in independent project development.CompensationHourly compensation will be determined based on your individual skills and experience.

Join Delphi as a Product Designer!Delphi is on a mission to revolutionize the way knowledge is shared, crafting an innovative medium for human interaction: interactive digital minds that engage, educate, and guide users in meaningful conversations.In contrast to traditional static profiles and endless feeds, Delphi offers a vibrant, interactive identity layer. This platform encapsulates your voice, perspective, and judgment, allowing others to experience your thought process rather than just reading about you.We're making Delphi accessible for everyone, empowering individuals to create their own digital minds that serve as perpetual profiles capable of answering questions on their behalf.Our bold mission includes:Ensuring that human wisdom is abundant, personalized, and easily discoverable.Preserving legacies, unlocking opportunities, and scaling brilliance across generations.Transforming Delphi into everyone's living profile that showcases knowledge.We enjoy the trust and admiration of thousands of brilliant minds, from Simon Sinek to Arnold Schwarzenegger (interact with them here). In the past six months, we've tripled our revenue, user base, and interactions organically through word of mouth. Our growth trajectory is set to accelerate even further.With backing from esteemed investors like Sequoia Capital, Founders Fund, and more, our team comprises successful founders and builders from industry giants such as Apple, Spotify, and Substack.Discover more about Delphi and this opportunity by calling the CEO’s digital mind here

Join the Revolution at Delphi!At Delphi, we are transforming the way knowledge is shared by introducing a groundbreaking medium for human interaction: interactive digital minds that engage, educate, and guide users.Unlike the static profiles and endless feeds of the internet, Delphi offers a dynamic, interactive layer of identity that encapsulates your voice, insights, and reasoning in every conversation—allowing people to experience your thought process.Our goal is to democratize access to Delphi, enabling anyone to create a digital mind that serves as an always-on profile, answering questions on your behalf.Our mission is audacious:To make human wisdom abundant, personalized, and easily discoverable.To preserve legacies, unlock opportunities, and amplify brilliance across generations.To position Delphi as everyone's living profile that showcases your knowledge.We are honored to be trusted by thousands of brilliant minds, including Simon Sinek and Arnold Schwarzenegger (interact with them here). In the past six months, we have tripled our revenue, user base, and interactions organically through word-of-mouth, and we are set to accelerate this growth.Our investors include notable names such as Sequoia Capital, Founders Fund, and Michael Ovitz, among others. Our team comprises founders with successful exits and top-tier builders from Apple, Spotify, and Substack.Discover more about Delphi and this role by connecting with the CEO’s digital mind here

Join our innovative team at eproinc as an Interaction Designer. In this role, you will be responsible for creating engaging and user-friendly digital experiences that meet the needs of our clients and users. Collaborate with cross-functional teams to design and implement interactive solutions, ensuring that our products are not only functional but also aesthetically pleasing.

Join the Innovative Team at Topos BioAt Topos Bio, we are at the forefront of drug discovery, focusing on the challenging area of intrinsically disordered proteins—molecular targets that traditional methods have struggled to address, particularly in neurodegeneration, oncology, and cardiometabolic diseases.We are looking for a passionate and skilled Computational Chemist to join our dynamic team. This role involves the generation of novel molecules across diverse targets and requires close collaboration with AI researchers and experimental scientists to push the boundaries of drug discovery.Your ResponsibilitiesCreate and optimize scalable workflows for the generation and screening of thousands of potential drug candidates.Design and execute molecular dynamics simulations, employing advanced sampling methods to analyze protein-ligand interactions and conformational changes.Develop and refine data pipelines for managing large-scale molecular simulations and structure-based predictions.Construct and enhance cheminformatics pipelines for compound filtering, property prediction, similarity searching, and chemical space exploration.Collaborate with AI specialists to integrate simulation data into model training and inference frameworks.Ensure computational protocols are scientifically sound while delivering practical outcomes.Effectively communicate complex technical concepts to cross-functional teams, aiding in the understanding of capabilities and limitations.Remain informed on the latest advancements in computational chemistry, generative models, and molecular simulations.Lead scientific presentations to pharmaceutical partners, articulating the computational strategies employed by our team to both technical and non-technical audiences.QualificationsPhD in Computational Biophysics, Computational Chemistry, or a related discipline.Demonstrable experience in molecular modeling, simulation, and generative drug design.Proficient in computational biophysics software (e.g., AMBER, GROMACS, OpenMM, PLUMED, Schrödinger, OpenEye).Strong foundation in cheminformatics: molecular fingerprints, QSAR/QSPR, property prediction, scaffold analysis, and cheminformatics libraries (e.g., RDKit, OpenBabel).Expertise in at least one programming language, preferably Python.Experience with HPC clusters or cloud computing environments, containerization, and workflow management.

ABOUT USAt Applied Compute, we are pioneers in developing Specific Intelligence for enterprises, creating agents that learn continuously from a company’s processes, data, expertise, and objectives. Our mission is to establish a continual learning platform that captures context, memory, and decision traces throughout the organization, enabling specialized agents to perform meaningful tasks.Why Join Us: Our team operates at a unique intersection of innovation. Our product team is responsible for crafting a platform that serves as the backbone for a new generation of digital coworkers. Meanwhile, our research team explores the cutting edge of post-training and reinforcement learning to enhance product experiences. Our applied research engineers collaborate closely with clients to deploy agents effectively in real-world scenarios. This synergy of robust product development, extensive research, and direct client engagement is essential for us to revolutionize AI in the enterprise landscape.Our Team: Comprising engineers, researchers, and operations experts, our team includes many former founders with extensive experience. We have developed RL infrastructure at OpenAI, data foundations at Scale AI, and other systems at companies like Two Sigma and Watershed. We proudly serve Fortune 50 clients and are supported by top-tier investors including Kleiner Perkins, Benchmark, Sequoia, Lux, and Greenoaks.Who Thrives Here: We seek individuals passionate about utilizing cutting-edge research and complex systems to address real-world challenges. Comfort navigating diverse environments, whether it’s a new codebase, unfamiliar customer data architecture, or unexplored problem domains, is essential. Our team values genuine client engagement — listening, empathizing, and understanding the realities of work in their organizations. Those with entrepreneurial spirits, rich project experiences, or proven capabilities to manage tasks end-to-end will excel in our environment.THE POSITIONAs a Software Engineer, you will be instrumental in building the products and interfaces utilized by customers and internal teams. You will manage the entire application platform stack, from collaborative human-AI workspace systems to backend workflows orchestrating sandboxed agent sessions, and the continual learning SDK that provides engineers with oversight of the agent development lifecycle.

About Tacit Tacit is a deep tech startup based in San Francisco, focused on advancing human-computer interaction through new hardware. The company is backed by investors including General Catalyst, Khosla Ventures, and Greylock Partners. The founding team brings experience from Stanford, BrainGate, Oculus, and Tesla. While much of the work is confidential, the team tackles ambitious engineering problems to deliver novel products. Role Overview The Computational Neuroscientist will help develop new approaches for data analysis, improve signal extraction, and strengthen Tacit's technology infrastructure. The role involves running and interpreting experiments on proprietary systems, drawing insights to guide future data collection, and refining decoding algorithms. Work includes direct interaction with signals from custom hardware and studying how performance scales across different user groups. This is a full-time, on-site position in San Francisco (5 days per week). What You Will Do Design, implement, and evaluate algorithms to extract features from biosignals for machine learning use. Iterate quickly on experiments to test new hardware prototypes and improve data collection methods. Develop analytical tools for visualizing and assessing data quality. Work closely with hardware and electrical engineers to improve the sensing stack. Requirements PhD in neuroscience, biomedical engineering, machine learning, computer science, or a related field (or equivalent industry experience). Skilled in Python and PyTorch. Experience collaborating across diverse teams and adapting to new technical domains. Background in dimensionality reduction and time series data analysis. Self-driven, adaptable, and resourceful approach to work. Strong communication skills and a collaborative mindset. Comfort working in a startup setting and able to contribute independently. Preferred Qualifications Experience with real-time human-machine interaction technologies, such as automatic speech recognition or closed-loop systems.

Join Our Team as a Customer EngineerTavus is at the forefront of human computing innovation. We are dedicated to creating AI Humans—an interface designed to seamlessly connect people and machines, eliminating the barriers present in existing technologies. Our advanced real-time human simulation models empower machines to perceive, respond, and engage as if they were human, facilitating genuine conversations.Imagine a world where everyone has access to an affordable therapist, a personal trainer that fits your lifestyle, or a team of medical assistants dedicated to providing personalized care. With Tavus, developers, enterprises, and individuals can harness AI Humans to connect, comprehend, and act with empathy at scale.As a Series B company, we take pride in our backing from renowned investors like Sequoia Capital, Y Combinator, and Scale Venture Partners. Join us in crafting a future where humans and machines truly understand one another.Role OverviewThis role transcends conventional engineering jobs. As a Customer Engineer, you will navigate two dynamic environments:Customer Engagement (30–40%) — Collaborate directly with clients to troubleshoot integrations, facilitate adoption, and assist them in creating exceptional solutions with Tavus.Product Development (remaining time) — Create SDKs, prototypes, and enhancements to our core platform, ensuring Tavus remains powerful, user-friendly, and enjoyable.You will serve as a vital link between our customers and the engineering team, transforming real-world challenges into actionable product improvements. Your goal is straightforward: guarantee that every developer and creator enjoys a seamless and captivating experience with Tavus, supported by comprehensive documentation, guides, tools, and product advancements.Key ResponsibilitiesEngage directly with clients to debug issues, develop proof of concepts, and design tailored solutions.Construct prototypes, SDKs, sample applications, and tools that enhance the developer experience.Gather user feedback, recognize patterns, and translate insights into product and engineering enhancements.Collaborate on early feature adoption by testing pre-release features with customers, collecting feedback, and proposing iterative improvements.Contribute to the definition of a world-class customer experience.

About AlljoinedAlljoined is dedicated to revolutionizing the interaction between humans and technology by developing non-invasive methods to decode thoughts from the brain. Utilizing cutting-edge deep learning techniques on extensive EEG datasets gathered using cost-effective hardware, we initially decode images, text, and video, with aspirations to eventually interpret internal thoughts. Our capabilities are at the forefront of technology, and we are fully vertically integrated. Our mission is to create a comprehensive consumer interface that will radically enhance our daily interactions at home and in the workplace.We are in the process of expanding our elite team of researchers, aiming to create the next interface that will not only improve individual lives but also contribute positively to society.About the RoleIn the role of Computational Neuroscientist, you will be instrumental in propelling our research initiatives forward. Through the application of advanced computational and neuroimaging methodologies, you will design and refine stimulus paradigms in collaboration with our research team, conducting in-depth analyses of collected data to extract insights across various paradigms and architectures. You will collaborate with a dedicated team of research coordinators who will facilitate large-scale data collection, alongside engineers and researchers to devise experiments aimed at optimizing next-generation neural decoding techniques.About YouPhD or postdoctoral experience in neuroscience or a related discipline.Substantial experience in the design and execution of neuroscience studies, with a focus on functional brain imaging data analysis (EEG, fMRI).Strong proficiency in Python, particularly with libraries such as MNE, Numpy, PsychoPy, and machine learning frameworks including PyTorch, SciPy, and Scikit-Learn.Extensive background in utilizing advanced computational, statistical, and modeling techniques to analyze and interpret neuroimaging data.A solid understanding of psychophysics and human behavior.Proven ability to conduct independent research while collaborating effectively in an interdisciplinary environment.

Role Overview Sigma Computing is building tools that help businesses let their customers create applications, agents, and dashboards using governed enterprise data. As the design team grows, the company is looking for a Senior Product Designer, AI, who thrives on solving complex problems and delivering new capabilities across the technology stack. The team values designers who want to make data accessible to everyone. What You Will Do Work at the intersection of interaction design and AI engineering Use AI to speed up product development and shipping Develop skills and evaluation methods to improve AI effectiveness Explore and define new ways for users to interact with intelligent systems Go beyond traditional design by not only working in Figma but also coding with AI, training it, and evaluating its performance Challenge and rethink what user interfaces can be when the UI itself can reason Work Location This position requires working on-site four days a week at Sigma Computing's San Francisco office.

Join Our Team as a Lead DesignerFoundation is on the lookout for an innovative Lead Designer to advance our core mission: modernizing the homebuilding industry and enhancing the experience of buying, selling, and owning homes.About FoundationWith $6.8 million in support from prominent venture capitalists including Y Combinator, Foundation is revolutionizing residential real estate, coming from a team formerly at Opendoor.Our flagship product is a comprehensive customer experience platform for homebuilders, akin to “Shopify for Homebuilders.” We collaborate with large-scale homebuilders to provide a modern digital customer experience, significantly improving customer satisfaction and team productivity. In just two years, we have achieved evident product-market fit and rapid growth, all with contract design support.Growth PhasesWe are currently navigating the first of three key growth phases:Transformative, AI-driven vertical SaaS for homebuilding.The enterprise ecosystem for real estate that fosters collaboration and unlocks opportunities across related trillion-dollar industries.The AI-native home operating system that supports a seamless experience for homebuyers and homeowners.Role OverviewAs our first hands-on design leader, you will collaborate closely with our founders, customers, and engineering team. We are seeking a full-stack, impact-driven designer passionate about transforming a vital sector of the U.S. economy and redefining design for the AI era.Your contributions will be pivotal in propelling Foundation into its next growth stages, focusing on the convergence of design, AI, and real estate innovation.

Type: Full-time Location: SF Preferred. Remote (US) for rare exceptionsAbout SuperpowerAt Superpower, we are dedicated to revolutionizing the healthcare landscape. Our mission is to create a health system that is not only preventative and personalized but also enhances human performance, consolidating the best aspects of health in one innovative platform.With 93% of our members reporting that we surpass their conventional healthcare experiences, and 60% discovering insights previously overlooked by their doctors, we are proving that our approach is life-changing.About the RoleThis position is ideal for a versatile designer who thrives on diversity in their work. One day you may be crafting a product feature, the next day designing a landing page, and the day after that creating a social media campaign or print materials for an upcoming event. You will seamlessly navigate between brand development, product design, growth initiatives, and communications to tackle high-impact design projects.At Superpower, our designers engage across various departments and channels. If you possess exceptional design sensibilities, this role is about amplifying your capabilities and bringing your unique taste to a broader array of projects.We embrace a “founder mode” mentality: diving into the details, delivering results, and proactively identifying areas in need of design improvement.What You'll DoDesign across product, brand, growth, and communications — addressing the most pressing needs each week.Create user interfaces, landing pages, email campaigns, advertising creative, social media content, presentations, and materials for events.Balance strategic thinking with pixel-perfect execution on a daily basis.Identify and resolve design gaps proactively without needing assignments.Collaborate directly with engineers, growth teams, clinical staff, and leadership.Contribute to and expand the brand and product design systems.Prioritize speed in delivery. We believe that action generates insight; your initial version doesn't have to be flawless — it just needs to be real.Engage in direct feedback exchanges, as we value radical candor to elevate our collective standards.What You Bring3–6+ years of experience in various design disciplines — whether in brand, digital, or product design, or a mixture thereof.A portfolio showcasing a breadth of work: product screens, campaign projects, web design, and potentially unexpected creative pieces.

Join us in shaping the future of robotics through innovative product design.At Foxglove, we are at the forefront of robotics, transitioning from research environments to real-world applications across various sectors such as factories, warehouses, and autonomous vehicles. When robots encounter failures or unexpected behaviors, engineers depend on comprehensive data to identify and resolve issues effectively.We provide powerful observability, visualization, and data infrastructure tools that enable robotics and autonomous systems teams to manage, analyze, and enhance massive volumes of multimodal sensor data from operational systems. Our mission is to empower engineers with the insights they need to optimize robotic performance.We are seeking a talented Product Designer to become part of our dynamic design team at Foxglove. In this role, you will collaborate closely with engineers, product managers, and fellow designers to enhance and expand our web and desktop applications. Your contributions will span the entire product design process—from initial exploration and prototyping to delivering polished user interfaces and features—all while gaining a profound understanding of our users: engineers developing autonomous vehicles and robotics.Key ResponsibilitiesDesign and enhance features within Foxglove’s web and desktop applications.Work collaboratively with engineers and product managers to develop product solutions.Translate complex technical workflows into user-friendly experiences.Develop wireframes, prototypes, and high-fidelity user interfaces to convey design concepts.Engage in user research and integrate feedback from robotics engineers.Rapidly iterate designs based on product objectives, user input, and technical considerations.Contribute to our design system, ensuring consistency across the product suite.Ideal Candidate ProfileA minimum of 2 years of experience in product design.A compelling portfolio showcasing strong UX, interaction design, and visual craftsmanship.Comfortable designing technical and data-driven interfaces.Proficient in Figma and AI tools such as Cursor and Claude Code.Enjoys collaborating with engineers and cross-functional teams.Able to articulate design thought processes and welcomes constructive feedback.Eager to deepen knowledge in robotics, developer tools, and complex technologies.