Senior Fullstack Software Engineer

About Us:At LangChain, we are on a mission to revolutionize the presence of intelligent agents in everyday applications. We provide robust solutions for agent engineering, enabling developers to transform their prototypes into production-ready AI agents that organizations can depend on. Originating as widely embraced open-source tools, we have expanded to also deliver a comprehensive platform for building, evaluating, deploying, and managing agents on a large scale.Our tools, including LangChain, LangGraph, LangSmith, and Agent Builder, are trusted by teams developing real AI products across various sectors, from startups to large enterprises. We are proud that millions of developers utilize LangChain to support AI initiatives at prominent companies such as Replit, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, and 35% of the Fortune 500.Having raised $125M in Series B funding from leading investors like IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we are at an exciting juncture, continuously innovating and expanding our product offerings. Each team member has the opportunity to make a significant impact on our growth and collaborative culture. At LangChain, your contributions can redefine how technology interacts with the real world.About the Role:We are looking for a Senior Fullstack Engineer to join our newly established team focused on developing foundational product features and integrations that enhance user acquisition, foster rapid experimentation, and enable self-service expansion. This pivotal role involves building growth systems from the ground up, working closely with cross-functional teams including product, design, GTM, and analytics to streamline user activation, optimize product offerings, and create a seamless growth narrative for both developers and enterprise clients. This position requires on-site presence five days a week in New York City, San Francisco, or Boston.Your Responsibilities:Engage across our technology stack (React, TypeScript, Python, Go) to develop full-stack product features that enhance growth and user retention.Create adaptable experimentation systems and processes that target a variety of growth metrics.Engage in data-driven, rapid growth experiments throughout the user journey, from onboarding to monetization.Design and implement new onboarding features and enhancements that quicken the user’s time to value.Develop growth mechanisms, including usage-based guardrails, intelligent upgrade prompts, and contextual calls-to-action.Collaborate closely with product, design, GTM, and analytics teams to identify, prioritize, and execute impactful growth initiatives.

About Scribd:At Scribd Inc. (pronounced “scribbed”), we are driven by a mission to ignite human curiosity and foster knowledge sharing. Join our innovative team as we craft a world enriched with stories and insights, democratizing the exchange of ideas through our diverse products: Everand, Scribd, Slideshare, and Fable.This job opening represents a confirmed, active position within our organization.We cultivate a culture where authenticity and boldness thrive; where we engage in meaningful debates and embrace unexpected challenges. Every team member is empowered to take initiative as we prioritize our customers' needs.Our workplace philosophy emphasizes a balance between individual flexibility and community engagement. With our Scribd Flex benefit, employees can collaborate with their managers to choose a work style that suits their personal needs. Key to Scribd Flex is our commitment to intentional in-person interactions, which are vital for fostering collaboration, culture, and connections. Thus, occasional in-person attendance is expected from all Scribd employees, regardless of their remote work location.What do we seek in our new team members? We value “GRIT”—the combination of passion and perseverance toward achieving long-term goals. At Scribd, we recognize the potential this mindset unlocks and encourage our employees to embody a GRIT-ty approach in their work. This means setting and achieving Goals, delivering Results in their responsibilities, contributing Innovative solutions, and positively influencing our broader Team through collaboration and a constructive attitude.Join Our Growth Platform TeamThe Growth Platform team at Scribd empowers marketers, lifecycle teams, and partner channels by providing MarTech solutions that enhance efficiency, enable data-driven decisions, and support scalable user acquisition across our brands: Scribd, Everand, SlideShare, and Fable.Our focus is on building and maintaining robust systems that facilitate campaign execution, optimize landing pages, manage tracking and attribution, and integrate with third-party tools for cross-channel marketing and analytics. We prioritize scalability, performance, and reliability, ensuring our partners have the necessary tools to drive user growth. Our team values collaboration, pragmatic solutions, and a commitment to continuous improvement.

At ClassDojo, our mission is to provide every child around the globe with an education they are passionate about.We began by creating a robust communication network. ClassDojo’s flagship application is the leading tool for communication, seamlessly connecting K-12 educators, students, and families worldwide. Teachers utilize the app to share real-time updates through photos, videos, and messages, ensuring parents feel engaged and involved. Our app is actively utilized in over 95% of U.S. schools, reaching more than 45 million children across 180 countries, supported by a dedicated team of approximately 200 professionals. We are now leveraging this network to provide children with exceptional learning experiences that extend far beyond traditional classroom settings.We prioritize talent density in our hiring process. Our team is composed of exceptionally talented, entrepreneurial, and innovative individuals from across the globe, with backgrounds in education and large-scale consumer internet companies like Instagram, Netflix, Dropbox, Stripe, Uber, and Y Combinator. We strive to cultivate an environment where the most skilled individuals aspire to work. We believe that at ClassDojo, you will achieve your best work and contribute to shaping the future of education.Key Responsibilities:As a Monetization Growth Product Manager, you will spearhead one of the most critical growth initiatives at ClassDojo: developing a consumer revenue engine that aligns seamlessly with user value. You will design and scale monetization experiences that millions of families will choose to pay for and enjoy. Collaborating closely with design, engineering, data science, and marketing teams, you will create and refine high-quality experiments that enhance user satisfaction and drive business success. You will leverage a combination of research, behavioral insights, data analysis, and intuition to refine our subscription offerings, pricing strategies, bundling options, positioning, and conversion pathways. This role entails significant autonomy and ownership, working in partnership with co-founders and product leaders to define and implement long-term strategies. Your focus will be on mastering product development, collaborating across disciplines to deliver innovative and effective solutions to user challenges, and scaling these solutions globally in support of our mission to help every child achieve their full potential.Ideal Candidate:5+ years of experience in growth product management, successfully delivering high-quality, large-scale consumer products across at least two organizations—one with over 1 million users and one that was not a late-stage company.Extensive monetization experience: demonstrated success in driving revenue growth through innovative, user-focused monetization strategies for consumer products.Strategic product thinker with exceptional intuition—capable of uncovering user needs, generating insights, and crafting impactful product strategies.

As a Product Designer on our Growth team, you will play a pivotal role in helping users realize the full potential of Descript, facilitating their early success with our innovative tools. Your expertise in utilizing data will drive the design process, enabling you to create and refine user experiences that seamlessly integrate user needs with tangible business outcomes. We seek designers who thrive in ambiguous situations and excel in collaborative environments. Join us in shaping the future of creative tools!

About AnthropicAt Anthropic, our mission is to develop reliable, interpretable, and steerable AI systems that are safe and beneficial for users and society at large. Our rapidly expanding team consists of dedicated researchers, engineers, policy experts, and business leaders collaborating to create impactful AI solutions.About the RoleAs a Product Manager specializing in Monetization, you will spearhead revenue growth across our diverse product suite, including Claude.ai, Claude Code, Claude Cowork, and Claude Platform. You will work closely with various growth teams concentrated on expanding our reach to specific audiences. Additionally, you will collaborate with a cross-functional team comprising engineers, designers, marketers, and data scientists to devise and implement strategies that enhance growth while upholding our commitment to safety and beneficial AI.

Role Overview Postman is hiring a Senior Software Engineer focused on Monetization for the San Francisco office. This role centers on designing and building new features that support and expand Postman’s monetization efforts. The work directly impacts how users experience and interact with the platform’s paid offerings. What You Will Do Architect and develop features that support revenue growth and user satisfaction Work closely with teams across engineering, product, and design to deliver scalable solutions Ensure that new monetization features maintain high standards for performance and reliability Location San Francisco, California, United States

Join Whatnot as a Fullstack Engineer focusing on Seller Growth. In this role, you'll harness your expertise in both frontend and backend technologies to drive innovative solutions that enhance our seller platform.As a vital member of our team, you will collaborate closely with cross-functional teams to develop features that empower sellers, optimize their experience, and help grow their businesses on our platform.

Join Cloudflare as a Senior Director of Pricing and Monetization, where you will play a pivotal role in shaping our pricing strategies and driving revenue growth. In this hybrid position, you will lead a dynamic team focused on optimizing pricing structures and identifying new monetization opportunities to enhance our market position.Your expertise will help us to develop innovative pricing models that resonate with our customers and align with our business objectives. Collaborate with cross-functional teams to analyze market trends, customer feedback, and competitive pricing strategies to inform our decisions.

Complete is dedicated to transforming compensation into a strategic advantage for the most impactful companies globally. We're revolutionizing compensation processes by moving away from outdated spreadsheets to modern, efficient systems. Our solutions encompass comprehensive compensation cycle planning, leveling, total rewards statements for employees, and interactive candidate offers, among other features!Why Join Us at Complete?We understand that effective compensation strategies are vital to a company's success and represent one of its largest expenditures. Many enterprises struggle to develop and implement a solid compensation strategy, which can lead to significant financial and operational inefficiencies. We believe that innovative compensation approaches are the key to sustainable success.Complete is proudly supported by Accel and Y Combinator, and we are fortunate to have esteemed advisors like Will Larson (CTO of Carta), Eric Sagar (COO of Plaid), and Mathilde Collin (CEO of Front).About Our Team We are passionate builders focused on delivering quality. We believe that 21st-century software should be intuitive and require minimal training. Our culture is characterized by low ego and rapid execution. Success doesn't come from large teams but from focused efforts. Our tight-knit team of fewer than 10 people combines exceptional product and business expertise, allowing us to compete effectively in the market. This is your opportunity to join us at a pivotal moment!⭐ Our clientele ranges from innovative startups like Linear and Brex to established public companies like Roblox, and we are continually adding remarkable names to our roster. We thrive in a collaborative environment at our San Francisco office, located near Embarcadero BART, where we work together in person 4-5 days a week. We believe that bringing top talent together in a creative space is the fastest route to success.Your RoleAt this exciting juncture, we are seeking Senior or Staff Engineers to help us scale towards $XXM+ in ARR. Ideal candidates are those who are proactive, enjoy working with urgency, and have a strong focus on customer outcomes. You will have the opportunity to make significant contributions in three key areas:Ownership: We are looking for experienced individuals who can take charge of projects and drive them to successful completion.

About SprigSprig is revolutionizing experience research with its AI-driven successor to traditional survey tools such as Qualtrics, Medallia, and SurveyMonkey. We envision a future where experience research is efficient, smart, and seamlessly integrated into the product development process.Our mission is to simplify deep customer understanding, making it continuously accessible. With Sprig, product teams transition from guesswork to clear insights, utilizing AI to unveil critical data, streamline workflows, and empower teams to deliver outstanding customer experiences in real-time.Renowned companies like Notion, Figma, Coinbase, and TripAdvisor leverage Sprig to foster deeper customer relationships. We are rapidly scaling towards $100M ARR, introducing innovative AI-driven features, and broadening our influence among the world’s leading companies.If you thrive on ambitious concepts, fast-paced growth, and the chance to reshape an entire industry, we invite you to connect with us.About the RoleAs part of Sprig's mission, we are assembling a top-tier product experience platform that empowers leading businesses to gain comprehensive insights into user interactions with their products at scale. The Core team is responsible for the complete experience of developing studies and deploying them across client applications using an installable client-side SDK.Our fullstack engineers play a crucial role in designing and implementing features across a JavaScript SDK client, managing APIs that handle thousands of requests per second, and creating an intuitive user interface for study creation. You will oversee web application releases and SDK versions across multiple platforms, prioritizing an optimal developer experience for thousands of developers utilizing our tools.Your contributions will reach millions of users globally.This position is based in San Francisco, requiring three days of in-office work.

P-160 About Us At Databricks, we are dedicated to empowering data teams to tackle some of the most challenging problems in the world — from transforming the next mode of transportation into a reality to expediting the development of medical innovations. We achieve this by developing and operating the leading Data Intelligence Platform, enabling our customers to leverage profound data insights that enhance their operations. Founded by engineers with a customer-centric approach, we eagerly embrace every opportunity to confront technical challenges, whether it involves designing next-generation UI/UX interfaces for data interaction or scaling our services and infrastructure across millions of virtual machines. Our journey is just beginning. As a Senior Full Stack Software Engineer, you will collaborate with your team and product management to simplify data insights for our users. We seek engineers who are customer-focused and capable of overseeing the entire product lifecycle, extending beyond mere technical execution. You will lay the groundwork for creating robust, scalable, and delightful products. Below are examples of experiences you will design for our customers, facilitating the complete project lifecycle from data loading and results visualization to statistical model creation and production deployment: User-friendly workflows for creating, configuring, and managing large-scale compute clusters, networks, and data sources. Develop, deploy, test, and upgrade intricate data pipelines, featuring powerful visual data graphs. Streamlined onboarding and management for all organizational members to adopt a data-driven approach. Exceptional SQL-centric data exploration and dashboarding experience on Databricks. An interactive environment for collaborative data projects at scale, with a straightforward path to production.

Flex is hiring a Senior Fullstack Software Engineer to join the Risk Engineering team. This position can be based in New York, San Francisco, or remote within the U.S. Role overview This role centers on designing, building, and maintaining applications that support Flex’s risk management efforts. The Senior Fullstack Software Engineer will collaborate closely with teammates to deliver solutions that improve how risk is assessed and managed across the company. What you will do Develop and maintain both frontend and backend components for risk-related applications Work with team members to design features and solve technical challenges Contribute to projects from initial planning through deployment Requirements Experience in both frontend and backend software development Ability to drive projects through the full development lifecycle Interest in building solutions that support risk management

About Pinterest:At Pinterest, we inspire millions globally to explore creative ideas and envision lasting memories. Our mission is to empower everyone to create a life they love, and that journey begins with our talented team.Join a workplace where innovation thrives, passion drives growth, and every unique experience is celebrated. With a culture that embraces flexibility, we enable you to do your best work and build a fulfilling career.As a part of Pinterest's vibrant community of over 500 million users and 300 billion ideas saved, our Machine Learning engineers play a pivotal role in crafting personalized experiences that empower Pinners to create their ideal lives. With a nimble team of just over 4,000 employees worldwide, we provide unparalleled access to extensive data and opportunities to contribute to large-scale recommendation systems.Within the Monetization ML Engineering team, you will bridge the gap between the aspirations of Pinners and the offerings of our partners. In this pivotal role, you will lead the vision for advancing the machine learning technology stack in our Ads division.

At Plaid, we envision a future where financial interactions are seamless and empowering. Our mission is to revolutionize how individuals manage their finances through innovative tools and experiences utilized by thousands of developers. We support millions in achieving healthier financial lives by enabling connections to their financial accounts through the apps they love. Collaborating with leading companies such as Venmo, SoFi, and many Fortune 500 firms, our network encompasses over 12,000 financial institutions across the U.S., Canada, the UK, and Europe. Established in 2013, our headquarters is in San Francisco, with additional offices in New York, Washington D.C., London, and Amsterdam.As a Senior Fullstack Software Engineer at Plaid, you will play a pivotal role in shaping the future of financial access. You will design and develop robust systems and engaging user experiences that facilitate millions of connections to their finances. Your expertise will span the entire technology stack, allowing you to create scalable backend services and APIs while also delivering intuitive frontend experiences that bring our solutions to life.This position is perfect for engineers who thrive on alternating between backend problem-solving and frontend design, and who are eager to amplify their influence across both domains. You will work collaboratively with product managers, designers, and fellow engineers to deliver reliable, secure, and user-friendly products. At Plaid, you will take ownership early, contribute to key architectural decisions, and witness your contributions impacting millions of users.

Woflow is an innovative technology startup dedicated to developing cutting-edge products and solutions for the rapidly evolving on-demand economy. Our flagship offering is a comprehensive platform that empowers our clients to seamlessly request and obtain structured merchant data, including menus, images, and store details, through a blend of web applications and public APIs. At the core of our operations, advanced machine learning and artificial intelligence models work in tandem with an automated distributed workforce management system. Proudly, we are recognized as the world's first Merchant Data Platform.We cater to a diverse clientele, including food delivery services, online ordering systems, and e-commerce marketplaces, providing the robust data infrastructure necessary for their growth and scalability.As a Senior Fullstack Engineer at Woflow, you will play a pivotal role in guiding the evolution of our products and the overall direction of the company. Your day-to-day responsibilities will involve planning innovative features, owning product development from inception to completion, and collaborating with the operations team to address and resolve customer concerns. To excel in this role, a passion for coding, meticulous attention to detail, and a commitment to delivering projects with pride are essential.Key Responsibilities:Collaborate across the technology organization, including engineering, product, and devops/data science teams, to deliver cohesive and successful products.Engage directly with the operations team to ensure our data infrastructure remains efficient and effective.Commit to providing an exceptional user experience by writing clean, maintainable, and efficient code.Thrive in a fast-paced, agile environment where your contributions will directly impact our success.Required Qualifications:A minimum of 5 years of professional software development experience.A strong passion for coding and a continual desire to learn and grow.Proven ability to deliver projects with exceptional attention to detail.Preferred Qualifications:Experience with Ruby on Rails.Proficiency in React.Familiarity with Apollo, GraphQL, and web crawling technologies.

Join Patreon as a Senior Fullstack Engineer focused on enhancing our community features. In this pivotal role, you will work collaboratively to design, develop, and maintain innovative solutions that empower creators and foster engagement within our platform. Your expertise in both front-end and back-end technologies will be essential in driving impactful projects that resonate with our user base.

About Nooks.ai:Nooks is revolutionizing sales with its AI Sales Assistant Platform (ASAP), designed to streamline tedious tasks so that sales representatives can concentrate on the human aspects of selling, ultimately driving greater sales pipelines. Trusted by thousands of sales professionals, Nooks has significantly contributed to achieving quotas, saving customers countless hours, and generating substantial revenue streams for organizations including Hubspot, Rippling, and Toast.Our high-performing team has successfully raised over $70M from leading venture capitalists, including Kleiner Perkins, marking their first investment in sales technology in over a decade. Over the past two years, we have quadrupled our Annual Recurring Revenue (ARR) and aim to triple it again this year.Learn more at Nooks.ai.About the Role:We are in search of a talented Senior Fullstack Engineer to join our Core Dialer team. This role entails enhancing the core user-facing dialer experience—encompassing dialing, task management, configurations, connected views, smart lists, and browser extensions—while ensuring optimal speed and reliability for our sales teams.Your Responsibilities:Develop and maintain essential dialer features utilized daily by sales representatives.Collaborate closely with design and product teams to deliver polished user experience enhancements.Optimize backend APIs and frontend performance to minimize latency and complexity.Work cross-functionally with Integrations and Voice Infrastructure teams to ensure seamless integration of workflows.Take ownership of dialer experience systems, progressing towards senior leadership within the team.Gain valuable exposure to distributed systems and their integrations.Qualifications:3 to 5 years of engineering experience, preferably in SaaS product development.Proficient in modern frontend technologies (React) and backend frameworks (Node/TypeScript, REST APIs).Strong foundation in data modeling and caching solutions (Postgres, Redis).Passionate about user engagement and agile iteration.At Nooks, we offer competitive compensation for eligible positions, including a base salary, equity, and comprehensive benefits package.

Join Our Team at Triumph ArcadeAt Triumph Arcade, we are revolutionizing mobile gaming by allowing players to wager and win real money, participate in massive multiplayer games, and engage in social tournaments. Our flagship app has rapidly ascended to the top of its App Store category, achieving remarkable month-over-month growth in both revenue and active users. As we continue to expand, we are excited to launch innovative products like Rips, our successful collectibles app that is breaking new ground in the industry.Supported by leading venture capital firms such as Goodwater Capital, General Catalyst, and DraftKings Drive Fund, Triumph Arcade is poised for incredible growth.Your RoleAs a Senior Fullstack Software Engineer on our web development team, you will play a crucial role in driving both revenue and company growth by transforming our successful mobile app into a robust web platform. You will take ownership of our end-to-end web stack, internal tools, and dashboard, building the infrastructure necessary to foster business opportunities. Your initial focus will be to deliver a web version of Rips, setting the groundwork for future web and Android applications. By establishing high standards for this new platform, you will push the limits of what it means to be a leader in our category.Your ResponsibilitiesDevelop and establish our web platform, laying down the foundation and standards for future web and Android applications.Leverage existing backend systems and infrastructure to construct a web version of Rips within a 3-6 month timeframe.Define best practices and standards for React development, with potential opportunities to work on React Native.Oversee the internal tools and dashboard, implementing enhancements that improve team efficiency and facilitate data-driven decision-making.Collaborate with backend engineers to design APIs and data models, contributing to both API architecture and application performance.Enhance user experience through thoughtful motion design, micro-interactions, and responsive design that feels intuitive and native.

Join Zencastr in our mission to amplify voices across the globe. If you're eager to innovate and revolutionize the podcasting landscape, we invite you to be part of our dynamic, fully remote team of forward-thinkers passionate about making a difference one voice at a time.What You’ll Bring:Proficient in Node.js with a solid grasp of JavaScript fundamentals.Strong understanding of computer science principles, including memory management and algorithmic complexity.Aspirations to innovate, whether it’s through entrepreneurial ventures or solving complex tech challenges.Enjoyment in coding with JavaScript or TypeScript.A keen eye for performance optimization in applications.Comfortable navigating both browser environments and Node.js runtimes.A collaborative spirit and strong communication skills.What Makes You Stand Out:A passion for developing high-performance applications.Notable contributions to open source projects.Desire to thrive in a fast-growing startup environment with its inherent challenges.Empathy for end users, driving your advocacy for their needs during the development process.Commitment to maintaining high code quality and best practices in engineering.Why Zencastr?Collaborate with world-class engineers and designers in a fully remote setup.Thrive in an agile, rapidly evolving work environment.Receive equity reflective of your contributions in a profitable company.Enjoy comprehensive health insurance.Face unique challenges supported by talented colleagues.