Senior Software Engineer - Foundation at Front | San Francisco

Join Checkr as an Engineering Manager for our Front End team, where you will lead a talented group of engineers in building innovative solutions that enhance our platform. You will play a pivotal role in shaping the user experience and driving the technical vision for our web applications. If you are passionate about technology, team leadership, and making a meaningful impact, we want to hear from you!

About UsAt salient, we are pioneering the AI infrastructure that will revolutionize financial operations, starting with the automation of intricate workflows in loan servicing.Supported by top-tier investors like a16z and Y Combinator, we have successfully raised $65 million in Series A funding.Achieving an 8-figure Annual Recurring Revenue (ARR) in under two years, we currently serve over 20% of the auto lending industry, efficiently processing millions of customer calls and transactions daily.Our solutions are fully operational with leading financial institutions, going beyond mere proofs of concept.We are rapidly expanding into new segments of financial services!Embrace our vibrant in-person office culture located in San Francisco, CA.Our team is fully integrated with our clients, managing the entire stack, and moving swiftly to introduce modern AI into regulated sectors where accuracy, consistency, and performance are paramount.About the RoleWe are seeking a dedicated Front-End Software Engineer to create dynamic, user-friendly interfaces that empower users to interact with complex data effectively. You will collaborate closely with product, design, and AI teams to develop elegant user interfaces, define frontend architecture, and deliver features that significantly enhance user experiences at scale.As an early and visible member of a nimble engineering team, you will take ownership of features from inception to delivery, contribute to UI strategy, and help mold the future of our products as we expand our offerings beyond voice.What You’ll DoCraft responsive and high-performance user interfaces utilizing React and TypeScriptSimplify complex workflows into user-friendly product experiencesEngage in cross-functional collaboration with product, design, and AI teams to innovate and iterate quicklyContribute to defining frontend architecture and develop reusable UI componentsCreate data visualizations that clarify and make financial data actionableCollaborate with backend engineers for seamless API and service integrationsDeliver clean, testable, and maintainable code in a rapid release cycleChampion the user perspective in product and engineering discussionsWhat You’ll Bring4+ years of experience in developing production-level front-end applicationsProficient in React and TypeScript, with a solid understanding of modern web technologiesDemonstrated ability to translate complex requirements into user-friendly solutions

Why Choose Flux?At Flux, we're redefining the landscape of hardware development by pioneering the world's first AI Hardware Engineer. Our mission is to make cutting-edge hardware design accessible to everyone, transforming the way electronics are conceived and manufactured globally.Role OverviewWe are developing an AI-driven ECAD platform that empowers hardware teams to collaboratively create real, manufacturable electronic components directly in a browser environment. As a Senior Front End Product Engineer, you will play a pivotal role in enhancing the web application experience, focusing on core editor interfaces, collaboration features, and user interfaces designed around AI-powered workflows.Your primary tools will be React and TypeScript, working in close collaboration with design teams and ECAD engineers to ensure our complex, real-time application remains intuitive and efficient for users.We are also open to mid-level candidates who demonstrate significant ownership of similarly intricate products.

OpenAI seeks a Silicon Implementation Engineer specializing in Front End design, based in San Francisco. This role centers on developing advanced silicon solutions that underpin the company’s artificial intelligence initiatives. The position involves close collaboration with fellow engineers to push forward hardware technologies. Key responsibilities Work with engineering teams to design and implement front end silicon components Use technical knowledge to support the advancement of OpenAI’s hardware Contribute to projects that influence the direction of AI hardware development

Join Kiddom as a Senior Front End Software EngineerAt Kiddom, we are revolutionizing education with our innovative platform designed to foster student equity and growth. By integrating high-quality instructional materials with engaging digital learning experiences, we empower schools and districts to take charge of their curriculum. Our platform not only enhances educational outcomes but also provides invaluable data insights for teachers and leaders to refine their instructional strategies and professional development.As a Senior Front End Software Engineer, you will play a key role in crafting impactful product experiences utilized by educators, students, and administrators on a daily basis. Collaborating closely with product managers, designers, and backend developers, you will create scalable and user-friendly front-end systems. This position is perfect for a detail-oriented individual who values craftsmanship and excels in a collaborative, mission-driven environment.

HUD builds infrastructure to support reinforcement learning training data and evaluation, serving advanced AI agents. The team is also developing a marketplace for these resources, working with leading AI labs, Fortune 500 companies, and startups. Backed by $15 million from top investors, HUD is part of Y Combinator's W25 cohort. Role overview This Full-Stack Engineer position emphasizes front-end expertise and user experience. The role involves developing features that span both client and server sides, with a focus on building intuitive, high-quality interfaces for HUD's core products. What you will do Build and launch product features across the stack, ensuring a seamless experience from front-end to back-end. Translate product and design requirements into polished, user-friendly interfaces. Optimize application performance for responsiveness and compatibility across browsers. Develop and maintain backend services and APIs that support key product functions. Work directly with customers to understand workflows and use feedback to improve the product. Requirements Experience owning products end-to-end and working across the stack. Ability to learn new technical concepts quickly, such as through competitive programming or similar challenges. A portfolio of shipped products, side projects, or live demos that highlight front-end skills. Background in early-stage startups and comfort working independently in changing environments. Familiarity with modern AI tools and an understanding of large language models (LLMs). Clear communication skills for remote collaboration across time zones. Bonus experience Exceptional portfolio in UI/UX, interaction design, or creative engineering. Experience with reinforcement learning, post-training, or model training workflows. Knowledge of product analytics tools and experimentation methods such as A/B testing. HUD values technical ability and growth potential over years of experience. Ambitious candidates are encouraged to apply.

Key Responsibilities:Take charge in designing and implementing our flagship product, ensuring a top-notch user experience.Innovate by prototyping and iterating new feature sets, leveraging cutting-edge AI technologies.Establish technology best practices and conduct research for future platform enhancements.Contribute to the growth of our product team by hiring, mentoring, and fostering talent.Analyze high-quality datasets from Fortune 500 clients to provide actionable insights for our customers.

Join Our Team as a Front-End Engineer:Are you passionate about anime and eager to create cutting-edge tools for the anime and video game industry? We are looking for a skilled Front-End Engineer to collaborate with our talented team at spellbrush. In this role, you will design and develop sophisticated front-end applications using React and TypeScript, ensuring that our user interfaces are responsive and engaging.Ideal Candidates Will:Embrace the Anime AestheticIf you're an anime enthusiast, you'll have the chance to explore innovative possibilities within the industry. Your love for the genre will drive your creativity as you contribute to our projects.Thrill in Building Complex Single-Page Applications (SPAs)Our applications are interaction-heavy and dynamic, resembling tools like Photoshop and Blender more than standard SaaS applications. A strong desire to explore canvas, WebGL, and possibly WebGPU will set you apart!Possess a Strong Design SenseLarge SPAs come with unique UI/UX challenges. We're in search of someone with a keen eye for design, capable of crafting tasteful UI layouts, seamless user experiences, and engaging microinteractions.Thrive in a Small, Agile Team EnvironmentWith a compact team of three dedicated frontend engineers, you will have the opportunity to work closely with some of the world's leading AI researchers, integrating advanced models into your stunning interfaces. We value the speed and efficiency of in-person collaboration, and we have offices in both Tokyo (downtown Akihabara) and San Francisco. Visa sponsorships are available.

The Trade Desk is looking for a Senior Front End Software Engineer to join the Deal Desk team. This group builds web interfaces that support the company’s products and works on projects that require both creativity and strong technical skills. Collaboration is central to the team’s approach, with engineers, designers, and product managers working together to solve challenges and improve the product. What you will do Design and build user interfaces for Deal Desk products using current front-end frameworks and tools Collaborate with engineers, designers, and product managers to deliver features that enhance the user experience Take part in shaping the direction and architecture of web applications Maintain high standards for code quality and reliability through solid engineering practices Locations This position is available in Irvine, New York, San Francisco, San Jose, and Ventura.

Join DepthFirst AI as a Product EngineerAt DepthFirst AI, we recognize software as the cornerstone of modern civilization, yet we are aware of the vulnerabilities that jeopardize its security and resilience. Our mission is to combat these threats through innovative solutions.We are pioneering AI technology that autonomously detects and resolves critical software vulnerabilities. Our advanced security AI agents are designed to discover zero-day vulnerabilities across extensive customer codebases and popular open-source software.Our founding team boasts expertise from leading companies like DeepMind, Databricks, Square, and Faire, and we seek talented individuals eager to explore the crossroads of AI, security, and infrastructure.Your Role:We are looking for an experienced Product Engineer with a focus on front-end development to spearhead the creation of our groundbreaking AI-native platform. This platform autonomously identifies and rectifies software vulnerabilities in code, currently serving a diverse array of large clients. You will play a vital role in shaping the product, understanding user needs, and reinventing security practices for organizations.Responsibilities:Product Development: Design and develop AI-driven products that address significant challenges, helping companies prevent major leaks.Performance Optimization: Own front-end performance and ensure our website exceeds industry standards for speed and responsiveness.Technology Utilization: Utilize Next.js, React, and the latest web development methodologies to build robust, scalable, and high-performance solutions.Impactful Work: Contribute to a product that addresses a critical issue, with large clients already uncovering significant vulnerabilities shortly after implementation.

We are seeking a highly skilled and experienced Lead Senior Staff Software Engineer specializing in front-end fundamentals to join our innovative team at The Trade Desk. In this role, you will lead the development of cutting-edge front-end solutions that enhance user experience and drive our product's success. You will collaborate closely with cross-functional teams, guiding junior engineers and fostering a culture of excellence in software development.

About UsAt Parallel, we are pioneers in web infrastructure, empowering businesses in sales, marketing, insurance, and software development to create state-of-the-art AI agents. Our innovative products grant flexible and robust programmatic access to the web.With a remarkable funding of $130 million from leading investors including Kleiner Perkins, Index Ventures, Spark Capital, Khosla Ventures, First Round, and Terrain, we are on a mission to redefine the web for AI applications. Join our exceptional team of engineers, designers, marketers, and researchers as we embark on this exciting journey.About YouYou are a skilled front-end developer with expertise in modern frameworks and a passion for crafting maintainable and user-friendly interfaces. Your experience includes working with TypeScript, contemporary CSS, Vercel, and headless CMS platforms like Sanity.Your understanding of responsive design, web performance, and accessibility principles is solid. You are adept at reading API documentation, collaborating with backend teams, and creating intuitive developer tools. Familiarity with data visualization or technical documentation is an added advantage.The RoleAs Parallel continues to grow, we seek an experienced front-end development lead to elevate our web properties from their initial versions to outstanding platforms that cater to our expanding customer base.Your primary focus will be on designing, building, and enhancing the web experiences that showcase the capabilities of our powerful APIs. You will concentrate on three key properties:Parallel.ai — our marketing sitePlatform.parallel.ai — our developer dashboard and playgroundDocs.parallel.ai — our technical documentation hubResponsibilitiesOversee web deployment and hosting operations across our digital assetsCollaborate with product and marketing teams to craft engaging web experiences that effectively communicate Parallel's core messages and product featuresWork closely with developer relations and deployed engineers to create demos and documentation that simplify complex technical concepts for developers.

We are seeking a passionate Front-end Developer who is eager to blend creativity with technical skills. In this role, you will be responsible for translating UI/UX design wireframes into code, bringing the visual aspects of our applications to life. You will collaborate closely with our UI/UX designers to bridge the gap between aesthetic design and functional implementation, actively contributing to both to define the application's appearance and performance.

Join DoorDash as a Front-End Web Developer specializing in B2B Marketing Technology. In this role, you will collaborate with a passionate team to design and implement innovative web solutions that enhance user experience and drive business growth. Your expertise in front-end technologies will help shape the future of our marketing tools and platforms.

About HallidayHalliday is an innovative blockchain company and product lab dedicated to establishing a unified, cross-chain payments ecosystem. Our flagship offering, Halliday Payments, is a state-of-the-art platform that simplifies onramping, swapping, and executing on-chain actions for users. Built on the advanced Workflow Protocol, our products eliminate the need for manual smart contract coding, allowing groundbreaking applications to be deployed in hours rather than years.With backing from prominent investors like a16z and #Hashed, Halliday collaborates with leading developers such as ApeChain, Story Protocol, and DeFi Kingdoms to deliver seamless experiences for both developers and users. Our diverse team comprises alumni from esteemed institutions including Stanford, Harvard, and industry leaders such as Compound, Meta, and Netflix.About the RoleAs a Frontend Engineer at Halliday, you will play a pivotal role in crafting user-centric products that shape the future of blockchain payments. You will design and implement high-performance, intuitive interfaces that streamline on-chain transactions for millions of users. This is a unique opportunity to work with cutting-edge technology alongside a talented team committed to transforming how individuals interact with blockchain.Your ResponsibilitiesDevelop User-Facing Applications: Create responsive, high-performance frontend applications using React and TypeScript that engage with blockchain networks, payment systems, and DeFi protocols, all while ensuring an exceptional user experience.Establish Core Infrastructure: Build scalable components, design systems, and testing frameworks that underpin our payments platform and developer tools.Contribute to Developer Tools: Enhance Halliday's public SDKs and APIs, facilitating seamless integration of blockchain payments into various applications.Collaborate Cross-Functionally: Work closely with product, design, engineering, and partnerships teams to deliver innovative solutions that address real user challenges and enhance product adoption.Pursue Technical Excellence: Proactively identify and implement enhancements to improve performance, accessibility, security, and code quality across our frontend stack.Innovate User Experience in Web3: Challenge the status quo by developing intuitive solutions that simplify complex on-chain actions for users.QualificationsFrontend Expertise: Minimum of 2 years of experience in building production-ready frontend applications utilizing React and TypeScript. You are passionate about writing clean, maintainable code and have a strong focus on user experience.

About CodeRabbitAt CodeRabbit, we are at the forefront of innovation, dedicated to developing cutting-edge human-machine collaboration systems. Our mission is to revolutionize software development through the creation of advanced AI-driven code reviewers that enhance productivity and efficiency. By integrating sophisticated language models with human creativity, we strive to redefine the standards of software quality and development speed.The RoleWe are seeking a talented Design Engineer who will act as a pivotal link between design and front-end engineering. This role involves taking ownership of our marketing website's implementation and evolution. You will engage in hands-on design work, produce high-quality code, and collaborate closely with our marketing and content teams to bring various campaigns, landing pages, and web experiences to fruition.Reporting to the Head of Design, you will collaborate with a dedicated product design team, external agency partners, and key stakeholders across marketing, content, growth, and developer relations. This position offers significant autonomy, ideal for someone proficient in both Figma and coding, who thrives on seeing their work brought to life in a live environment.Your ResponsibilitiesWebsite Management & Development• Lead the front-end development of coderabbit.ai, creating and deploying new pages, sections, and engaging interactive features using our Next.js 15 / TypeScript / Tailwind CSS technology stack.• Transform design ideas from Figma mockups, sketches, or your own concepts into high-quality, production-ready code.• Implement dynamic animations, transitions, and interactive elements utilizing GSAP, Framer Motion, and WebGL/Three.js that enhance the website experience while ensuring optimal page speed and adherence to core web vitals.• Enhance and maintain our front-end component library to ensure uniformity and reusability across all marketing platforms.Marketing & Campaign Contributions• Collaborate with marketing and content teams to design and construct landing pages, campaign pages, product announcements, and conversion-oriented experiences.• Rapidly prototype and deploy web assets for product launches, events, and growth initiatives independently.• Develop and maintain reusable page templates that enable the marketing team to operate more efficiently.• Assist with visual content creation, including social media graphics, blog illustrations, email templates, and simple motion graphics as needed.

Key Responsibilities:Take a pivotal role in designing and executing our flagship software product.Develop prototypes and iterate on new features that integrate cutting-edge AI technologies.Establish best practices in technology and explore future enhancements for our platform.Mentor current and upcoming members of our engineering team.Analyze high-quality datasets from Fortune 500 companies to generate valuable insights for our clients.

Why Join ivo?At ivo, we recognize that contract negotiation is not only time-consuming but also a costly aspect of the contract lifecycle. Despite advancements in technology, the process remains challenging and has not significantly improved since the era of fax machines.With the advent of large language models, we now have the capability to address numerous contract negotiation issues at scale. Our top-tier product boasts an impressive 85%+ head-to-head trial win rate and is trusted by leading companies worldwide.Position Overview:We are seeking a talented Design Engineer to become a pivotal member of our San Francisco team. As our first Design Engineer, you will have the unique opportunity to influence the direction of ivo’s product, enhance user experiences, and develop our overarching design strategies. You will collaborate closely with leadership and engineering teams to craft intuitive, user-centered designs that fulfill our customers' needs. A balance of product design and front-end engineering expertise is ideal for this role.Your Responsibilities:Contribute significantly to the entire design and creative process.Gain a deep understanding of our product to craft industry-leading user experiences.Develop our front-end framework and advocate for a reusable component system.Work alongside our founders to establish product strategy and prioritize the roadmap through a design perspective.Maintain high-quality standards while ensuring rapid delivery.

Important NoticeThis is a full-time, on-site position located in San Francisco (Presidio), where you will work in our office five days a week.Candidates must be residents of the Bay Area or willing to relocate prior to starting.We require valid US work authorization, and we are open to sponsoring an O-1 visa for exceptional candidates.Role Overview: Senior Full Stack Engineer (Back-End)Your ResponsibilitiesIn this role, you will develop and deploy full-stack features from backend APIs to the user interfaces that enhance user interactions on a daily basis.As part of a small team of roughly 15, you will not only implement new features but also influence key architectural decisions that will support scaling our system to handle significantly increased loads.You will collaborate closely with our CTO on various initiatives, including:Establishing and managing sandbox environments for agent code execution, ensuring security, resource limits, and process isolation for thousands of concurrent sessions.Designing deployment and migration processes for a Cloudflare Workers and Fly.io architecture, incorporating blue-green deployments and canary testing.Implementing end-to-end instrumentation for real-time workloads, including SSE streaming and task queues.Delivering new backend features, tool integrations, and memory indexing, with immediate impact on real users.Minimizing operational overhead through effective logging, monitoring, and incident response tools tailored for our scale.Your innovative ideas!Technology StackWe leverage a range of technologies including TypeScript, Cloudflare Workers, Durable Objects, Hono, Drizzle ORM, Postgres, Zod, SST, Vercel AI SDK, Docker, React, and Vite.Candidate ProfileEssential QualificationsA minimum of 5 years of engineering experience developing and maintaining backend systems in a production environment, with on-call responsibilities.Proficient in TypeScript with a strong preference for backend development, while also being capable across the entire stack.