Senior Frontend Software Engineer – San Francisco

Join Collate as a Frontend Software EngineerAt Collate, we are revolutionizing the life sciences sector with our innovative AI document generation platform. Our mission is to expedite the delivery of life-saving innovations to patients by automating complex paperwork. As a seamless end-to-end solution, we support every stage of drug, diagnostic, and medical device development, from initial concept to market launch.Led by our visionary CEO, Surbhi Sarna, a former General Partner at Y Combinator, and our CTO, Nate Smith, a former Visiting Partner at Y Combinator, we have assembled a team of elite professionals with experience from top-tier companies like Google and Amazon. Our small team has garnered over $30M in seed funding from esteemed investors including Redpoint and First Round Capital, positioning us for rapid growth and impact in the healthcare field.As a Frontend Software Engineer, you will play a pivotal role in shaping the user experience at Collate. Your innovative contributions will translate complex AI technology into intuitive and user-friendly tools for doctors, patients, and researchers. Your work will directly influence the product experiences that are critical for improving patient outcomes.You will be working on a predominantly frontend-focused enterprise workflow application, ensuring the interface is clear, reliable, and trustworthy. This is a unique opportunity to design the intersection where transformative technology meets real-world users.Our Cutting-Edge Tech StackWe utilize modern technologies including TypeScript, React, and Tailwind CSS for our frontend development, creating a dynamic environment for innovation and collaboration.

About CollateCollate is an innovative AI-driven document generation platform tailored for the life sciences sector. Our mission is to streamline paperwork through advanced AI technology, enabling our clients to deliver life-saving innovations to patients significantly faster. Serving as a comprehensive solution, Collate enhances every phase of drug, diagnostic, and medical device development—from initial concept to market readiness.Under the leadership of our CEO Surbhi Sarna, a distinguished former General Partner at Y Combinator, and our CTO Nate Smith, a former Visiting Partner at Y Combinator, our team comprises AI researchers, engineers, and designers with experience from top-tier companies like Google, Nvidia, Meta, and Netflix. Impressively, 40% of our team are former founders themselves.We are a compact, elite team backed by over $30 million in seed funding from renowned investors including Redpoint, First Round Capital, Conviction, and Y Combinator, along with industry leaders in healthcare and AI. This is a unique opportunity to become part of a groundbreaking company poised to make a significant impact, guided by experienced founders with the resources to scale effectively.About the RoleWe are seeking a passionate AI Engineer to assist in developing and operationalizing the models and systems that drive Collate's innovative products. Your role will bridge the realms of machine learning, software engineering, and product development—transforming pioneering research into dependable, user-centric functionalities.This position offers a remarkable chance to influence the application of advanced AI in the life sciences sector, where performance, safety, and trust are as crucial as innovation. As one of the initial AI-focused engineers at Collate, you will help establish standards for evaluating and deploying models that have a direct impact on drug and medical device development.

Join our dynamic team at collate as a UI Designer, where your creativity and innovative design skills will help shape intuitive user experiences. Collaborate with cross-functional teams to craft visually stunning interfaces that engage and delight users.

About CollateCollate is a cutting-edge AI-driven document generation platform specifically designed for the life sciences sector. Our innovative technology automates the paperwork process, enabling our clients to deliver life-saving medical innovations to patients significantly faster. As a comprehensive solution, Collate supports every phase of development for drugs, diagnostics, and medical devices—from initial concept to market launch.Our visionary CEO Surbhi Sarna, a former General Partner at Y Combinator, founded nVision Medical, which pioneered a novel method for detecting ovarian cancer before its acquisition by Boston Scientific. Our CTO Nate Smith, previously a Visiting Partner at Y Combinator and founder of Lever, leads our talented team of AI researchers, engineers, and designers who have backgrounds at industry giants such as Google, Nvidia, Meta, Netflix, Amazon, Airbnb, Hippocratic AI, and Grail. Notably, 40% of our team members are former startup founders themselves.As a compact yet highly skilled team, we have secured over $30M in seed funding from top-tier investors including Redpoint, First Round Capital, Conviction, and Y Combinator, as well as healthcare and AI leaders. This is a unique opportunity to join a company at the forefront of transformative change, guided by experienced founders with the resources to scale effectively.About the RoleWe are seeking a talented Backend Engineer who will play a crucial role in designing and scaling the systems that underpin Collate’s offerings. You will be responsible for developing APIs, services, and the infrastructure that form the backbone of our platform, ensuring they are efficient, dependable, and secure as we transition from prototypes to large-scale implementation.This position is perfect for individuals who thrive on tackling complex system challenges, flourish in an early-stage setting, and wish to see their contributions directly impact advancements in the life sciences field.Modern Tech StackCollate employs a contemporary tech stack aimed at delivering a highly reliable and available platform. Our backend services are built using Go, while we utilize Postgres as our primary database. Frontend development is powered by TypeScript and React, and Python is utilized for AI and machine learning services. Our infrastructure is hosted on AWS, employing Kubernetes for orchestration along with Terraform and Argo CD for configuration management.

About CollateCollate is a cutting-edge AI-driven document generation platform specifically designed for the life sciences sector. Our mission is to streamline documentation processes through automation, enabling our clients to accelerate the delivery of life-saving innovations to patients significantly faster. As a comprehensive solution, Collate supports every phase of drug, diagnostic, and medical device development, from initial concept to market launch.Founded by CEO Surbhi Sarna, a former General Partner at Y Combinator, Collate benefits from her extensive experience, including the founding of nVision Medical which pioneered a novel ovarian cancer detection method that was later acquired by Boston Scientific. Our CTO Nate Smith, previously a Visiting Partner at Y Combinator, is also the founder of Lever. Our talented team of AI researchers, engineers, and designers hail from prestigious companies such as Google, Nvidia, Meta, Netflix, Amazon, AirBnB, Hippocratic AI, and Grail, with 40% of our members being former startup founders.As a compact yet highly skilled team, we have secured over $30 million in seed funding from premier investors including Redpoint, First Round Capital, Conviction, and Y Combinator, as well as leaders in the healthcare and AI sectors. This represents a unique opportunity to join a pioneering company with the potential for transformative impact, led by experienced founders equipped with the resources necessary for large-scale execution.About the RoleWe are seeking a Full-Stack Software Engineer (Backend-Leaning) to architect and develop the systems and user-focused features that drive Collate's success. Your primary responsibilities will revolve around backend challenges—such as APIs, services, and infrastructure—while also engaging in the delivery of complete end-to-end features.This role offers a chance to help shape our technical framework, work closely with design and product teams, and influence the user experience of Collate from the very beginning.Modern Tech StackCollate employs a modern technology stack to ensure a highly reliable and available platform. We utilize Go for scalable backend services, TypeScript and React for frontend development, and Python for AI and ML services. Our infrastructure leverages AWS with Kubernetes for orchestration and Terraform alongside Argo CD for configuration management. Key systems in our architecture include S3, PostgreSQL, Kafka, OpenSearch, LLMs, and various AI models.

Frontend Software EngineerLocation: San Francisco, CAJoin us at Latent as we pioneer the future of AI-driven clinical systems, transcending the outdated Electronic Health Record (EHR) framework. Your innovative designs will empower healthcare providers and patients to intuitively access vital information, thereby enhancing treatment efficiency and overall patient care.Ideal Candidate ProfileWe seek a Frontend Engineer who is passionate about transforming complex backend and AI functionalities into clear and impactful user experiences. You will thrive in our dynamic, collaborative office environment and possess a keen desire to understand the intricate technical and healthcare landscapes that underpin our solutions.High Standards: You maintain exemplary standards for code quality and user experience.Domain Curiosity: You are eager to learn about new technologies and the complex healthcare regulations we navigate (e.g., Prior Authorizations).Bias for Action: You proactively tackle challenges and take initiative to solve problems without waiting for direction.Tool Proficiency: You are highly skilled with your tools, adept at using the command line and keyboard shortcuts.Key ResponsibilitiesAs a Frontend Engineer, you will be responsible for the user interface and frontend architecture of our primary product:UX Architecture: Design a robust and adaptable React ecosystem tailored for complex, mission-critical healthcare applications and user-centric AI tools.Intuitive Design: Create high-level UI/UX solutions that enable providers and operational teams to seamlessly access clinical data and AI-generated insights for workflows such as Prior Authorizations and Appeals.Frontline Impact: Develop interfaces that are essential for Patient Interaction workflows, ensuring clarity and efficiency in design.Collaboration: Collaborate closely with Full Stack and Backend Engineers to define interfaces and APIs that facilitate rapid product development and iteration.

Join collate as a Quality Engineer specializing in Diagnostics, where you will play a pivotal role in ensuring the highest standards of product quality. In this full-time position, you will collaborate with cross-functional teams to develop and implement quality assurance processes that enhance our diagnostic products.As a member of our team, you will be responsible for designing test plans, conducting rigorous testing, and analyzing results to drive improvements. Your expertise will contribute to the development of innovative solutions that positively impact our customers and the healthcare industry.

About ChalkChalk is revolutionizing the data platform landscape to propel the advancements of machine learning applications. We dismantle the complexities, latencies, and scalability constraints that have historically hindered ML capabilities. Our platform melds the swift performance of Rust with intuitive tools that developers appreciate. Major companies rely on Chalk for diverse tasks, including thwarting fraudulent credit card transactions, identity verification, and optimizing clean energy utilization. Recently, we secured a $50 million Series A, spearheaded by Felicis.About the RoleWe are on the lookout for seasoned Frontend Software Engineers to join our dynamic team. In this role, you will spearhead the development of robust front-end architecture patterns, create well-abstracted reusable components, and collaborate across teams to enhance developer efficiency. Your success in this position will stem from your extensive front-end expertise and your ability to collaborate effectively across various teams and disciplines to achieve results.This position presents an exciting opportunity to join us in-person as an early employee, allowing you to make a significant impact at a rapidly growing startup. You will confront challenging engineering problems with considerable autonomy and ownership.We seek software engineers who are adept at resolving business challenges across all layers of the software stack, particularly focusing on frontend engineering. At Chalk, we construct reliable data processing systems capable of performing efficiently at scale, all while maintaining a strong emphasis on developer experience.We require engineers who can create world-class user experiences on both web and command-line interfaces, while also understanding and contributing to a codebase enriched with concepts from compilers, query planners, and distributed systems.Our team operates onsite five days a week. While we are flexible with unavoidable conflicts, this is not a hybrid role.What You Will DoCollaborate directly with Chalk’s co-founders to bring our initial iteration to productionDevelop using TypeScript (React), Python, and GoLead discussions on frontend architecture and conduct technical breakdowns.Enable data scientists and machine learning end-users to access the functionality of our core platform in their native environmentsRapidly iterate to enhance Chalk's offerings based on user feedback and needs.

About LayerIn the past ten years, a dynamic ecosystem of software tools tailored for small and medium-sized businesses (SMBs) has flourished, assisting them in managing various aspects of their operations. From payments to payroll, businesses have seen significant advancements; however, accounting solutions have not kept pace. Many small business owners continue to grapple with disjointed, generic accounting software and the high costs of bookkeepers.At Layer, we are revolutionizing accounting software and bookkeeping by integrating them into the everyday tools that SMBs rely on. Our platform empowers software companies to swiftly deploy modern accounting solutions and bookkeeping services to their SMB clientele, eliminating reliance on outdated accounting systems or costly bookkeepers.The RoleWe are seeking engineers who aspire to build not just a superior product but also a thriving team and company culture. This requires a blend of broad technical expertise across our technology stack, alongside less common skills such as:Thinking innovatively from foundational principles while aligning with customer needs.Demonstrating curiosity about both technical and business challenges.Skillfully managing competing priorities and trade-offs in relation to company goals.Exhibiting a strong sense of ownership over product and team decisions.Fostering a supportive environment that enhances the strengths of team members.We believe that exceptional early-stage engineers often possess some common experiences, such as:2+ years of experience with dynamic software teams.Experience navigating the ups and downs of developing new products from inception.A proven track record of leadership growth within teams.That said, we deeply value individuals who take the initiative to tackle problems and pursue opportunities they are passionate about, so we welcome those who may not fit the exact profile to reach out.Our Tech StackWe do not prioritize candidates based solely on their familiarity with our technology stack. One of the advantages of hiring exceptional engineers is our confidence in their ability to adapt quickly, with support from the team. However, we want every candidate to be excited about the tools and environment they will encounter on day one.API language: KotlinEmbedded components: ...

At HomeVision, we are revolutionizing the home valuation and appraisal industry by efficiently valuing a $40 trillion asset class. Our mission is to enhance equity and transparency within the US housing market. Backed by Initialized Capital, we are experiencing remarkable traction and revenue growth. We are on the lookout for a skilled Frontend Engineer to help us innovate our products and provide exceptional experiences for our customers.To thrive in this role, a strong empathy for our end users and a holistic understanding of product development are crucial.Key Responsibilities:You will be immersed in a cutting-edge React/Typescript and Golang stack, creating workflow automation solutions tailored for our primary users—home appraisal professionals. At HomeVision, our engineers have the autonomy to engage with the entire product lifecycle, from refining valuation models to enhancing customer onboarding and crafting intuitive frontend data visualizations that effectively communicate results.What You Bring to the Table:Extensive full-stack development experience across both backend and frontend technologies.Demonstrated proficiency in Unix/Linux environments and distributed systems.A knack for quickly learning and mastering new programming languages and technologies.Bonus Qualifications:Familiarity with technologies such as Go, Python, React/Typescript, Elasticsearch, and Docker.Experience in scientific and numerical computing (e.g., numpy, scipy, scikit-learn, tensorflow, pytorch, jupyter) is a plus.What We Offer:A competitive salary alongside a meaningful equity package.Comprehensive medical, dental, and vision coverage.401k plan.Generous parental leave policies.Flexible vacation policy.A high level of autonomy and ownership over your projects.Support for your professional development and aspirations through mentorship and collaboration.

About WorkWhileAt WorkWhile, we are dedicated to empowering workers to earn better wages and improve their quality of life. With over 80 million Americans in hourly jobs facing unpredictable schedules and limited benefits, we aim to address the financial challenges they encounter.We are transforming frontline work by creating a flexible and efficient labor marketplace. Our AI-driven platform connects businesses with top-tier talent swiftly, while providing workers with same-day pay, complimentary telehealth services, opportunities for upskilling, and the freedom to select shifts that align with their skills and availability.Our audacious mission is to realign incentives and tackle inefficiencies in the labor market, aiming to disrupt the $650 billion staffing and recruiting industry. Supported by Khosla Ventures and recognized by the Inc. 5000 for our remarkable growth, WorkWhile is at the forefront of reshaping the future of work.

About KiddomKiddom is an innovative educational platform dedicated to fostering student equity and growth by seamlessly integrating high-quality instructional materials with engaging digital learning. Our comprehensive curriculum management tools empower schools and districts to take charge of their curriculum, creating customized learning experiences that align with the distinct needs and aspirations of local communities. By providing robust insights for teachers and leaders, Kiddom drives continuous improvement in instructional decisions, school programming, and professional development.We are on a mission to revolutionize education through the power of technology. Our goal is to create a holistic platform that supports educators and learners alike with state-of-the-art tools and data-driven insights. We are seeking a skilled Staff Software Engineer to join our team and spearhead the architecture and development of scalable, frontend-focused solutions.As a Lead Software Engineer - Frontend at Kiddom, you will be instrumental in designing and delivering comprehensive product features with a strong focus on frontend architecture. Your role will involve scoping, building, and optimizing product features and addressing complex challenges at scale. You will work collaboratively with other senior engineers, select the most suitable tools and technologies, and implement robust, production-grade software solutions.Note: Please complete the application questions in full. Failure to do so will result in automatic disqualification.

About Flow EngineeringFlow Engineering is an innovative AI-driven requirements platform that simplifies complex engineering tasks, enhancing clarity, collaboration, and verifiability. We are transforming the landscape of hardware development by integrating elite engineering talent with AI agents, enabling rapid design, iteration, and deployment.Role OverviewWe are seeking a talented Staff Frontend Software Engineer to take charge of key user experiences within Flow. You will lead the creation of AI-enhanced workflows, ensuring they are seamlessly integrated into a user-friendly interface. Collaborating with design, product, infrastructure, and AI engineering teams, you will simplify complex systems engineering concepts to enhance usability.Key ResponsibilitiesTake ownership of significant user-facing components in Flow v3, including interactive requirements views, collaboration features, and AI-assisted workflows.Develop high-quality, accessible user interfaces using modern frontend frameworks and a component-based approach.Incorporate AI features into the platform in intuitive and beneficial ways for engineers.Collaborate with design and product teams to quickly iterate on interaction patterns, prototypes, and new workflows.Contribute to shaping frontend architecture, design systems, and performance enhancements as the application and user base grow.About YouOver 8 years of experience developing dynamic, data-intensive web applications with modern frontend frameworks.Proficient in React (or similar) and TypeScript, including component architecture, state management, and testing methodologies.A user-centric mindset: you consider user journeys, edge cases, and clarity over mere screen design.Able to work closely with design and product teams, providing and receiving constructive feedback throughout development cycles.Willing to occasionally engage with backend processes (e.g., API refinement, integration) to ensure comprehensive feature delivery.Our Technology StackReact and TypeScript as our core frontend technologies.Utilization of utility-first CSS frameworks like Tailwind for styling.

Join Us as a Frontend Engineer at PlaudPlaud Inc. is on a mission to create the world's most reliable AI work companion, enhancing productivity and performance through innovative note-taking solutions. With over 1,500,000 users globally since our inception in 2023, we strive to amplify human intelligence by developing next-generation interfaces that capture and utilize thoughts and ideas effectively.We are a Delaware-incorporated, San Francisco-based company that merges cutting-edge hardware and software to redefine human-AI collaboration. Our commitment to data security and privacy is reflected in our compliance with ISO 27001, ISO 27701, GDPR, SOC 2, HIPAA, and EN 18031 standards.Explore more about Plaud at www.plaud.ai and connect with us on Instagram, X, Facebook, LinkedIn, and YouTube.

Join our innovative team at Collate as a Quality Engineer focusing on medical devices. In this full-time position, you will be responsible for ensuring that our products meet the highest quality standards. You will collaborate with cross-functional teams to develop, implement, and maintain quality assurance protocols that comply with industry regulations and best practices.Your role will involve conducting quality audits, analyzing product performance data, and identifying areas for improvement. We are looking for a detail-oriented individual who is passionate about enhancing product quality and safety in the medical device sector.

About UsAt Serval, we are at the forefront of innovation, pioneering an AI-native automation platform that revolutionizes enterprise operations. Our intelligent agents are designed to comprehend real-world workflows and execute them seamlessly, transforming manual tasks and outdated systems into adaptive, self-learning software solutions. Established in early 2024, Serval has rapidly gained the trust of industry leaders such as General Motors, Notion, Perplexity, Vercel, Mercor, LangChain, and Verkada, enabling them to automate complex operational workflows.Our cutting-edge platform utilizes agentic AI technology that translates natural language into production-ready workflows. Serval's agents do more than respond; they reason, take decisive actions across various systems, and continuously enhance their performance through user interactions. Initially focused on operational use cases, our technology has expanded into a versatile AI automation layer utilized across IT, HR, Finance, Security, Legal, and Engineering sectors.Our mission is to eradicate repetitive manual tasks throughout enterprises, empowering teams through intelligent automation. Ultimately, we aim to develop the universal AI operations layer—a system of agents that optimally manages workflows across all business functions, ensuring efficiency and innovation.Supported by top-tier investors including Sequoia Capital, Redpoint Ventures, Meritech, First Round, General Catalyst, and Elad Gil, our founding team comprises seasoned product and engineering experts from Verkada.

About ChalkChalk Inc. is at the forefront of innovation, developing a robust data platform designed to enhance the capabilities of machine learning applications. Our mission is to eliminate the complexities, latency, and scalability issues that have previously limited ML functionalities. We fuse the efficiency of Rust with intuitive developer tools, making our platform a trusted resource for leading companies tackling diverse challenges, from preventing fraudulent credit card transactions to optimizing clean energy usage. Recently, we secured a $50 million Series A funding, led by Felicis.About the RoleWe are actively seeking skilled Frontend Software Engineers to join our dynamic team. In this position, you will take charge of establishing robust frontend architecture, spearheading the development of reusable components, and collaborating across various teams to enhance developer efficiency. If you are an adept engineer with extensive frontend experience who thrives in collaborative environments, this role is designed for you.This is an exciting opportunity to join us in-person as an early team member and significantly influence our growth at this high-velocity startup. You will face challenging engineering problems with ample autonomy and ownership.Please note: We require in-office presence five days a week, with flexibility for unavoidable conflicts. This is not a hybrid position.We are looking for engineers who are adept at addressing business challenges across all software layers, with a keen focus on frontend engineering. At Chalk, we create dependable data processing systems that perform exceptionally at scale, prioritizing developer experience.We need engineers who can construct exceptional user experiences across both web and command-line interfaces while also engaging with a codebase that incorporates principles from compilers, query planners, and distributed systems.What You Will DoCollaborate directly with Chalk’s co-founders to implement our initial production iteration.Develop using TypeScript (React), Python, and Go.Lead discussions on frontend architecture and technical specifications.Facilitate the integration of our core platform's functionality for data scientists and machine learning end-users in their respective environments.Rapidly iterate to enhance Chalk’s solutions.

Why join usAt Brex, we are revolutionizing the way businesses manage their finances with our AI-driven spend platform. Our integrated solutions, including corporate cards, banking, and global payments, empower companies to spend confidently. From startups to large enterprises like DoorDash, Flexport, and Compass, thousands of organizations utilize Brex to enhance their spending control, cut costs, and improve operational efficiency on a global scale.Joining Brex means pushing boundaries, challenging conventional thinking, and collaborating with some of the most talented individuals in the industry. We are dedicated to fostering a diverse and inclusive team culture, where your potential is only limited by your aspirations. We provide you with the tools and support necessary to advance your career.Engineering at BrexEngineering at Brex focuses on developing robust systems designed for scalability and precision. Our teams encompass Software, Data, Security, and IT, operating with a high level of autonomy and collaborative spirit. We tackle complex technical challenges, take ownership of our outcomes, and strive for excellence in every aspect, from architecture to deployment. Here, engineering is treated as a craft, and builders emerge as leaders.What you’ll doAs an Intermediate Frontend Engineer, you will engage with the entire Brex stack, developing and maintaining innovative products and features, while creating tools to facilitate the scaling of Brex. This role offers the chance to learn and push the boundaries of delivering an exceptional financial software experience that enables companies to thrive. You will be encouraged to adopt a data-driven approach, think creatively, and contribute to Brex's expansion into new markets. We seek individuals who are not only passionate about product development but also eager to lead multifaceted projects with numerous components. In this position, you’ll directly impact our business and help shape our long-term technical roadmap with a focus on quality.Where you’ll workThis position is based in our San Francisco office. We embrace a hybrid work model that combines the vibrant energy of in-office collaboration with the flexibility of remote work. Currently, we require employees to be in the office a minimum of three coordinated days a week: Mondays, Wednesdays, and Thursdays. Additionally, we offer the possibility of up to four weeks of fully remote work each year!ResponsibilitiesCollaborate with engineers across the organization to develop new features and products.Work closely with...

At Outset, we are revolutionizing the way research is conducted through our innovative AI-powered user interviews.Renowned global brands like Hubspot, Microsoft, Uber, and Nestle leverage Outset to gain profound qualitative insights about their users with unmatched speed and scale.The research industry, valued at over $140 billion and continuously expanding, is primed for disruption. Our competitors are outdated and slow, burdened by costly services, presenting us with a unique opportunity.Backed by leading Silicon Valley investors, Outset successfully raised $30 million in a Series B funding round in December 2025, following a breakout year of 8x growth as enterprise customers adopt our AI-moderated research as the new benchmark for understanding user behavior.Based in the heart of San Francisco’s Financial District, our close-knit team of 30 is dedicated to serving some of the largest enterprises in the world.