Senior Frontend Software Engineer

The Role:Join us as a dynamic Frontend Tech Lead at f2-ai, where you'll take the helm in crafting our cutting-edge, AI-driven enterprise UI platform. This is a unique opportunity for an innovative engineer who enjoys building robust systems from the ground up and is eager to influence our technical direction while writing production-level code.Key Responsibilities:UI System Development: Design and implement foundational frontend features, actively coding and delivering essential React/TypeScript components.Frontend Architecture Leadership: Shape the technical vision and roadmap for our React-based UI platform, ensuring swift iterations and effective scaling of user experiences.Performance, Security, and Accessibility: Create high-performance, responsive interfaces that comply with SOC 2 and accessibility standards, emphasizing maintainability and cost-effectiveness.AI Integration: Collaborate with the team to incorporate intelligent features, data visualizations, and interactive tools that reveal AI-driven insights.Engineering Excellence: Establish and maintain coding standards, component libraries, and review processes; mentor fellow engineers to cultivate a culture of reliable, test-driven development.Collaborative Partnerships: Work closely with product, design, backend teams, and enterprise clients to translate requirements into elegant UI solutions.Qualifications:Proven Technical Leadership: 7+ years of experience in building and scaling mission-critical frontend systems using TypeScript and React, with a demonstrated capability to architect solutions from scratch.API Design Proficiency: Extensive experience in designing and utilizing RESTful and GraphQL APIs, including state management and effective data-fetching techniques.Results-Oriented Mindset: You excel in environments where you take ownership of features from start to finish, iterate quickly, and deliver production-ready UI solutions.Familiarity with Styling Solutions: Experience with CSS-in-JS methodologies (e.g., Styled Components, Emotion) or utility-first frameworks like Tailwind.

About Ivo Inc. Ivo Inc. builds AI-powered tools for legal teams. The engineering group has launched projects such as: An AI agent that integrates with MS Word to improve document editing (2023) Shifting from traditional embedding models to agentic Retrieval-Augmented Generation (RAG) (2023) Applying large-scale language models for legal fact extraction (2024) Developing a legal assistant for searching extensive contract databases (2024) Clustering legal documents by lineage (2025) Automating deviation analysis to reveal hidden risks in contract databases (2025) Linking contracts and amendments to create composite timelines for clients (2025) Role Overview: Staff Software Engineer - Frontend This role shapes the user interface and overall experience for Ivo's AI-native legal platform. The Staff Frontend Engineer focuses on building fast, collaborative, and intuitive web applications that connect directly with LLM-powered agents. What You Will Do Develop a real-time, collaborative interface enhanced by AI features Write performant and maintainable frontend code Build components that interact with large language model agents Work closely with designers and legal professionals to improve the product for legal teams Our Mission Most businesses depend on in-house legal teams, where lawyers often face overwhelming workloads and tight deadlines. Historically, few tools have existed to help them. Ivo’s platform uses large language models to automate repetitive legal work, aiming to restore work-life balance for legal professionals. The company maintains an 85% trial win rate, even in a competitive market. The team is committed to making a real difference in the legal field. Location San Francisco

Why Weave ExistsAt Weave, we are revolutionizing the way therapeutic knowledge is captured, transformed, and communicated throughout the drug development process. Our mission is to empower human experts with cutting-edge AI tools, ensuring drugs reach patients swiftly, safely, and cost-effectively.The Weave Platform optimizes regulatory workflows from inception to completion, seamlessly integrating AI into every phase. Collaborating with our clients, Weave is crafting the ultimate AI toolkit for the entire therapeutic lifecycle.Your Role & MissionWe are in search of a Lead Staff Frontend Engineer to spearhead the technical direction of our frontend platform. This high-impact role involves defining the architecture, establishing engineering standards, and constructing the foundational systems upon which the engineering team will build. You will balance hands-on technical work, cross-team collaboration, and elevating our software development practices.In this role, you will identify key technical challenges, foster alignment on solutions, and ensure our architectural decisions support scalable growth. We prioritize creating simple, well-tested, and reliable systems over pursuing the latest frameworks.What You'll OwnTechnical Leadership & ArchitectureDefine and refine the frontend architecture for our platform, weighing immediate velocity against long-term maintainability.Establish engineering standards, design patterns, and best practices throughout the frontend codebase.Drive the technical strategy and roadmap for frontend infrastructure, architecture, developer tooling, and experience.Be the go-to technical decision-maker for high-stakes, ambiguous problems, documenting your rationale.Foundational SystemsDesign and build the core systems that product engineers rely on: component libraries, shared abstractions, performance infrastructure, and testing frameworks.Oversee the architecture of our document editor experience, including real-time collaboration, conflict resolution, and extensibility.Enhance frontend build, deployment, and observability tools to maintain team speed and confidence.Cross-Team ImpactCollaborate with Product, Design, and backend engineering to formulate technical solutions for complex product challenges.Mentor and guide junior engineers, fostering a culture of knowledge-sharing and continuous improvement.

About ApiphanyApiphany stands at the forefront of foundational AI technology for physical product development. Our mission is to empower innovators in industries such as automotive, aerospace, medtech, and energy to convert vast amounts of unstructured technical data into real-time, actionable insights. Supported by prominent investors from Markforged, Databricks, GM, and Character, we are dedicated to changing the landscape of engineering decision-making, transforming complexity into clarity for the world's leading manufacturers.Our sophisticated models are tailored to address the intricacies of engineering and manufacturing, comprehending principles of physics, design specifications, and program constraints. We are a tight-knit team of elite builders from top universities including Stanford, Berkeley, MIT, UW, and CMU, alongside industry leaders from GM, Ford, and Genesis Therapeutics. Our passion lies in revolutionizing hard-tech and collaboratively establishing a category-defining enterprise.About the RoleAs a Senior / Staff Frontend Engineer at Apiphany, you will play a crucial role in designing, building, and enhancing our state-of-the-art web application. You will be tasked with implementing high-quality UI components, developing the next generation of data visualization, ensuring optimal performance, and upholding best practices in frontend development.Your contributions will also include shaping the long-term frontend strategy, mentoring team members, and establishing engineering practices that will support the company's growth. You will work closely with design, backend, and machine learning engineers to transform massive data streams into intuitive and actionable insights for users, ensuring a seamless experience.

About the RoleJoin us as a pivotal member of our frontend engineering team, where you will spearhead the development of exciting new features that enhance our user experience.Your Responsibilities:Design and develop the foundational frontend architecture for innovative products from inception to launch.Quickly prototype and refine features to test ideas and improve user interactions.Set and uphold best practices for code quality, testing, performance, and maintainability.Work in close collaboration with design, product, and backend teams to create a seamless user journey.Play an active role in crucial technical and product decisions as part of our founding engineering team.Guide and mentor upcoming engineers, helping to foster a high-performing frontend team culture.

Why Choose Brex?Brex stands as a pioneering finance platform designed to empower companies to spend wisely and act swiftly across over 200 markets. By seamlessly integrating global corporate cards with innovative banking, spend management, bill pay, and travel software, we enable founders and finance professionals to streamline operations, gain real-time insights, and effortlessly manage expenditures. Our AI-driven automation and exceptional service alleviate the burden of manual expense and accounting tasks, allowing clients to concentrate on their core objectives. Renowned companies such as DoorDash, Coinbase, Robinhood, Zoom, Plaid, Reddit, and SeatGeek trust Brex to handle their financial needs.Joining Brex means pushing boundaries, challenging conventions, and collaborating with some of the industry’s brightest minds. We are dedicated to fostering a diverse team and an inclusive culture, believing that your potential should only be constrained by the size of your dreams. We empower you with the tools, resources, and support to advance your career.Engineering at BrexOur engineering teams are committed to building scalable systems with intention and speed. Spanning Software, Data, Security, and IT, we operate with high autonomy and strong collaboration. We tackle complex technical challenges, take ownership of our outcomes, and pursue excellence in every aspect—from architecture to deployment. At Brex, engineering is a craft, and those who build are poised to become leaders.Your RoleAs a Senior Frontend Engineer, you will engage with the entire Brex technology stack to create and enhance products and features, as well as develop tools to facilitate Brex's scalability. You will have the chance to innovate and push the boundaries of the financial software experience, enabling companies to thrive. Your data-driven and creative thinking will be essential as we prepare to enter 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 role, you will directly influence business outcomes and help define our long-term technical vision while maintaining high standards of quality.Work EnvironmentThis position is located in our San Francisco office, where we promote a hybrid work model that combines the dynamic nature of in-office work with the flexibility of remote work. We currently require a minimum of three coordinated in-office days each week—Mondays, Wednesdays, and Thursdays. Additionally, we offer up to four weeks of fully remote work per year!

Why Join Harvey?At Harvey, we are revolutionizing the landscape of legal and professional services — not just incrementally, but through a comprehensive transformation. By harnessing cutting-edge agentic AI, a robust enterprise platform, and profound industry expertise, we are redefining how critical knowledge work is performed for generations to come.This is an exceptional opportunity to contribute to the creation of a transformative company at a pivotal moment. With over 1,000 customers across 58 countries, a solid product-market fit, and outstanding investor backing, we are rapidly scaling and pioneering a new category in real-time. The challenges are ambitious, the standards are high, and the potential for personal, professional, and financial growth is unparalleled.Our team consists of talented, driven, and passionate individuals dedicated to our mission. We work swiftly, with intensity, and take genuine ownership of the issues we face — from initial concepts to enduring outcomes. We maintain close connections with our customers — from leadership to engineers — collaborating to address real challenges with urgency and care. If you flourish in uncertainty, strive for excellence, and wish to shape the future of work alongside a team that elevates the standard, we encourage you to join us in building something great.At Harvey, we are crafting the future of professional services today — and we are just getting started.Role OverviewAs a Staff Software Engineer specializing in Frontend Development at Harvey, you will take the lead on engineering initiatives that shape the user experience across our diverse product suite: Assistant, Vault, Workflows, and our integrations with Microsoft Word and Outlook. You will also spearhead frontend engineering for innovative products currently in development at Harvey. Our team is composed of highly skilled, motivated, and empathetic engineers. We ensure that everything we create meets high standards — from design and architecture to code and communication. If this aligns with your ethos, this role could be an excellent fit for you.This position is based in San Francisco, CA, with a hybrid work model available, and we offer relocation assistance to new hires.What You'll DoDesign and develop new user interfaces for legal professionals and organizations to collaborate effectively with AI.Lead the development of comprehensive UI features for Assistant, Vault, Workflows, our Word/Outlook add-ins, and upcoming Harvey products — managing everything from project scoping and design reviews to implementation, launch, and continuous improvement.Create polished, high-performance interfaces using React and TypeScript, enhanced with TailwindCSS, ensuring seamless interactions, efficient state management, and robust error handling.Architect reusable components and design patterns to streamline development processes and enhance product quality.

Role Overview Sigma Computing builds a high-performance platform focused on modern data architecture. The engineering team is growing and looking for a Staff Software Engineer - Frontend in San Francisco, CA. This role centers on developing features that make data accessible and usable for a wide range of users. What You Will Do Design and build responsive user interfaces using current front-end technologies. Take ownership of major product components from early concept through launch. Work closely with product managers, UX designers, and backend engineers to introduce new features and technologies that improve the product and simplify the experience for users without technical backgrounds. Apply expertise in front-end development to create visualizations for structured and unstructured data. Develop methods to boost application performance and interactivity. Work with modern frontend frameworks, including React, GraphQL, TypeScript, and Node.js.

Join the Engineering Crew at IvoAt Ivo, our engineers are the architects of innovation. As pioneers in the legal tech sphere, we have introduced:• An AI agent that seamlessly integrates with MS Word for effortless editing [2023]• Revolutionary embedding models that enhance agentic retrieval-augmented generation [2023]• Cutting-edge large-scale legal fact extraction tools powered by LLMs [2024]• An intuitive legal assistant for precise contract database searches [2024]• Innovative clustering techniques for legal documents [2025]• Advanced deviation analysis to uncover hidden risks in contracts [2025]• Merging contracts with amendments for seamless time series tracking [2025]Your RoleAs a Senior/Staff Frontend Software Engineer, you will create delightful user experiences through your expertise in frontend technologies.Your responsibilities will include:• Designing real-time, collaborative interfaces infused with AI capabilities• Writing high-performance UI code that stands out• Crafting frontend components that work harmoniously with LLM-powered agents• Collaborating with a diverse team, including designers and lawyers, to transform legal workflows in the age of AIOur MissionEvery major business has a legal team, and these lawyers are often overwhelmed by 80-hour work weeks and tight deadlines. Until recently, technology has offered little relief.At Ivo, we harness the potential of LLMs to restore balance to the lives of these legal professionals. Our goal is to develop an AI-native platform that alleviates legal burdens. Users love our software – with an impressive 85% trial win rate, we are making a tangible difference in the industry, and we are just beginning.

About Ivo Inc. Ivo Inc. builds legal technology for the future of contract work. The engineering team has delivered several firsts in the industry, including: An AI agent that integrates with MS Word for streamlined document editing (2023) Migration from traditional embedding models to agentic RAG systems (2023) Large-scale legal fact extraction using large language models (2024) A legal assistant that searches extensive contract databases with accuracy (2024) Clustering related legal documents to improve workflow efficiency (2025) Automated deviation analysis to identify hidden risks in large contract sets (2025) Tools for merging contracts and amendments into composite contracts, changing how legal professionals work (2025) Role Overview: Senior Frontend Software Engineer This role focuses on building user experiences that legal professionals rely on every day. As a Senior Frontend Software Engineer, the work centers on creating interfaces that are both intuitive and powerful. What You Will Do Design a dynamic, real-time interface powered by AI Write efficient, high-performance UI code Develop frontend components that connect seamlessly with LLM-powered agents Work closely with designers, legal experts, and engineers to shape the future of legal technology Our Mission Legal teams often face long hours and repetitive contract reviews, with little help from traditional technology. Ivo aims to change that by building an AI-native platform that automates routine legal tasks. The platform is trusted by users and holds an 85% trial win rate, the highest in the market. The team is committed to making a real difference for legal professionals. Who Thrives Here Engineers who care deeply about code quality and want their work to matter Location San Francisco

Join Hive as a Senior Frontend Software Engineer!At Hive, we are at the forefront of cloud-based AI solutions, dedicated to revolutionizing the way organizations understand, search, and generate content. Trusted by some of the world's most innovative companies, we empower developers with a suite of top-tier, pre-trained AI models, handling billions of customer API requests each month. Our robust software applications, fueled by proprietary AI models and datasets, are paving the way for groundbreaking use cases in content moderation, brand protection, sponsorship measurement, and context-based advertising.With over $120M raised from esteemed investors such as General Catalyst, 8VC, Glynn Capital, Bain & Company, and Visa Ventures, Hive is proud to employ a diverse team of over 250 talented individuals across our offices in San Francisco, Seattle, and Delhi. If you're ready to shape the future of AI, we want to hear from you!About the RoleAs a Senior Frontend Software Engineer, you will play a pivotal role in developing our Hive Data and Hive Enterprise products. Collaborating closely with designers, product owners, and fellow engineers, you will create innovative user interfaces that define our platforms. Utilizing the latest web technologies, including React, Redux, Webpack, and ES6, you will deliver exceptional user experiences. Given our small, agile team, you will have the opportunity to iterate rapidly and make impactful software design decisions regarding product features. We seek candidates with a strong technical foundation who are passionate about frontend technologies and thrive in a dynamic, fast-paced environment.

At Lassie, we are revolutionizing the healthcare industry with our AI-driven solutions designed for medical practices.With over a million health practices spending more than $100 billion annually on administrative staff, the demand for efficient solutions has never been greater. The ongoing effects of COVID-19 have left many offices understaffed, leading to frustrated patients dealing with unanswered calls and confusing bills.We envision a future where AI seamlessly manages the operations of medical offices, handling administrative tasks and serving as the interface for patient interactions.Founded by Steijn Pelle, who propelled Robinhood and Coinbase to substantial revenue milestones, and Frédéric Renken, a former engineer and product pioneer at Superhuman, we are infusing consumer product expertise into healthcare and transforming the way doctors and patients engage.About the RoleWe are seeking a design-oriented Senior Frontend Software Engineer to develop a robust control plane for our powerful AI agents that manage billing and medical records. Your work will impact real patients and practices, as you create interfaces that inspire trust and ease of use.Emphasizing a consumer-friendly approach to healthcare software, we prioritize elegance and meticulous attention to detail. Your contributions will encompass various aspects including onboarding, human-in-the-loop review, and tools that empower practice owners to gain insights into their operations.You Are a Great Fit If You…Pursue excellence and are willing to refine your work until it achieves greatnessTake pride in crafting software that is fast and intuitiveSeek to maximize your impact through automation and effective processesPossess strong foundations in JavaScript and browser APIsShare our belief that healthcare software should be as delightful as consumer applicationsSome of Our Notable AchievementsDeveloped a synchronization engine utilizing encrypted SQLite in the browser, facilitating 100ms response times for healthcare payments and patient ledgersImplemented systems that significantly reduce the paperwork burden by thousands of hours each month

About WorkWhileAt WorkWhile, we are dedicated to empowering workers to earn a better living and enhance their quality of life. With over 80 million Americans relying on hourly jobs that often come with unpredictable schedules, low wages, and limited benefits, financial stability is often out of reach.We are transforming the landscape of frontline work by fostering a more flexible and efficient labor market. Utilizing advanced AI technology, the WorkWhile platform enables businesses to swiftly access high-quality talent. Our workers enjoy same-day pay, complimentary telehealth services, opportunities for skill enhancement, and the freedom to select shifts that align with their expertise and schedules.With an ambitious goal to align incentives and rectify inefficiencies within the labor market, we are on a mission to disrupt the $650 billion staffing and recruiting industry. Supported by Khosla Ventures and recognized on the Inc. 5000 for 10x growth, WorkWhile is redefining the future of work.

Join Mindlance as a Lead Frontend Engineer and take the next step in your career by leading innovative frontend development projects. We are looking for a creative and driven individual who excels in building user-friendly interfaces and enjoys collaborating with cross-functional teams. You will be responsible for designing and implementing high-quality web applications, optimizing performance, and ensuring a seamless user experience.

About Ivo Inc. Engineering Ivo Inc. builds AI-powered tools that reshape how legal teams work. The engineering group drives projects such as: An AI agent for MS Word that assists with document editing (2023) Agentic Retrieval-Augmented Generation (RAG) using imprecise embeddings models (2023) Large-scale legal fact extraction with LLMs (2024) An AI legal assistant for navigating complex contract databases (2024) Clustering legal documents by lineage (2025) Deviation analysis to uncover risks in contract repositories (2025) Tools for merging contracts and amendments into composite documents (2025) Role Overview: Frontend Software Engineer The Frontend Software Engineer will help shape user experiences for Ivo’s AI-driven legal platform. This role focuses on building intuitive interfaces and collaborating across disciplines to rethink legal workflows. Key Responsibilities Develop real-time, collaborative interfaces using AI capabilities Write efficient, high-performance UI code Create frontend components that integrate with LLM-based agents Work closely with designers, legal specialists, and engineers to improve legal processes Our Mission Many corporate legal teams face long hours and heavy workloads. Ivo’s mission is to ease that burden by automating tedious legal tasks with LLMs. Our AI-native platform has earned strong feedback, including an 85% trial win rate, and is making a difference for attorneys. The journey is just beginning. What Sets Ivo Apart Ivo’s engineers focus on practical solutions and thoughtful product development. Those who care deeply about software quality and want to see their work have real impact will find a strong sense of purpose here. Location San Francisco

About KiddomKiddom is an innovative educational platform committed to fostering student equity and growth by integrating high-quality instructional materials with engaging digital learning experiences. Our platform offers exceptional curriculum management capabilities, empowering schools and districts to take charge of their educational content. This results in tailored learning experiences that cater to the unique needs and aspirations of local communities. With detailed insights into teacher and leader performance, Kiddom drives continuous improvement in instructional strategies, school/district programs, and professional development.At Kiddom, we are passionate about revolutionizing education through state-of-the-art technology. Our mission is to create a comprehensive platform that equips educators and learners with advanced tools and data-driven insights. We are seeking a skilled Lead Software Engineer specializing in Frontend development to join our team and spearhead the design and implementation of scalable, frontend-centric solutions.As the Lead Software Engineer - Frontend, you will be pivotal in architecting and delivering full-stack product features with a focus on frontend architecture. Your responsibilities will include defining, building, and optimizing product features and addressing complex challenges at scale. You will collaborate with senior engineers to select optimal tools and technologies while implementing robust, production-ready software solutions.

Join Filevine, a pioneering Legal AI firm revolutionizing legal work with our cutting-edge Legal Operating Intelligence platform. We unite data, documents, workflows, and teams into a cohesive system that enhances clarity and consistency in modern legal practice.With our innovative Legal Operating Intelligence System (LOIS), we empower legal professionals to shift from reactive to proactive operations. LOIS comprehensively analyzes your data to uncover insights, automate complex processes, and provide the clarity needed to excel. Recognized by Deloitte and Inc. as a leader in technological innovation, Filevine is experiencing rapid growth and is proud to be a top player in the industry.Position Overview:We are seeking a talented Senior or Staff Frontend Engineer to take ownership of essential product features across our Word and web applications. In this role, you will establish high standards for user interface quality, influence architectural choices, and collaborate closely with design, backend, and AI engineering teams. Your contributions will directly impact the workflows of thousands of legal teams daily.This is an opportunity for individuals looking for significant ownership, rapid iteration cycles, and substantial influence within one of Filevine’s most technical and user-oriented product areas.

About the Role Hinge Health is hiring a Senior Frontend Software Engineer in San Francisco (HQ). This role focuses on developing user interfaces that help patients engage with digital health tools. The work directly supports the company’s goal of making healthcare more accessible and effective.

Join DEUNA, an innovative startup at the forefront of transforming global commerce with our cutting-edge AI-driven platform, ATHIA. This remarkable orchestration and payments solution empowers enterprises to enhance approval rates, minimize costs, and unlock new revenue streams. As a product developed by a team that has established DEUNA as the fastest-growing Commerce OS in Latin America, ATHIA integrates payment intelligence, checkout optimization, and data orchestration in one powerful package.With extensive integrations across over 300 payment service providers and alternative payment methods, and with more than 20% of Mexico's digital economy leveraging our platform, we streamline global payments through a single integration and centralized reconciliation.As we expand into the U.S. market to cater to the urgent needs of large retailers, marketplaces, airlines, and quick-service restaurants, we invite you to be part of our team and help shape the future of payments!