Staff Software Engineer, Fullstack (Marketing)

Join us as a Founding Software Engineer with extensive full-stack development expertise to shape the future of our innovative AI platform tailored for market due diligence. You will take full ownership of developing features from the ground up—spanning AI-driven backend systems to sleek frontend interfaces utilized by investment professionals in Private Equity, Hedge Funds, Private Credit, and Corporate M&A to guide billion-dollar decisions.About DiligenceSquaredDiligenceSquared revolutionizes commercial due diligence for Private Equity funds. Backed by Y Combinator, we recently secured a substantial Seed round, and our clientele includes some of the largest PE funds globally.The market is valued at over $10 billion annually, with PE funds investing $500,000 to $1 million per report with firms like McKinsey, BCG, and Bain. Our AI solutions provide these services faster, more cost-effectively, and with superior accuracy compared to traditional methods.Our founders have firsthand experience in this domain, having traded these reports while holding senior positions at Blackstone and BCG. We possess profound insights into the workflows and are now focused on automating these processes.Your Responsibilities:Develop new product features and user experiences end-to-end, from database schemas to API endpoints, and integrate them with UI components for our web application and AI Voice Agent.Design and build AI-powered modules from scratch (e.g., market sizing, competitive analysis) that will be integral to our research platform.Establish and manage product foundations across the stack, including AI agent orchestration, voice AI pipelines, interactive data visualizations, application and API performance, and intelligent automations.Incorporate lessons learned from every project into the product development, ensuring continuous incremental improvements (the Law of Compounding is critical, especially for a company founded by investment experts).Qualifications:Minimum of 3 years of professional full-stack development experience.Strong command of React/TypeScript and Python.Experience in developing intelligent systems using LLM platforms (e.g., Anthropic, OpenAI).Extensive hands-on experience with LLMs in production, focusing on building reliable intelligent systems.Proficient with PostgreSQL and SQL database architecture.Familiarity with modern frontend architecture, state management, and API design.

Spotify is seeking a passionate and experienced Senior Fullstack Engineer to revolutionize the Data Experience for our Backstage Portal, an acclaimed internal developer portal (IDP) utilized by teams globally.In the current landscape, data often exists in fragmented silos across various warehouses and transformation tools, disconnected from the collaborative software catalog. Our Data Experience initiative tackles this challenge by seamlessly ingesting dataset metadata and integrating it into Backstage’s Software Catalog, ensuring data is as accessible and well-documented as any software component. As a key contributor, you will influence the architecture and product strategy while developing connectors, APIs, and user interfaces that empower our customers’ data platform teams to minimize manual tasks, enable data owners in dataset management, and assist data consumers in easily locating the information they need.This role is not merely about creating another data catalog; it's about advancing our Portal's mission to provide data practitioners with a low-code experience that is transforming platform engineering for enterprises.

At StubHub, we are dedicated to transforming the live event experience for fans around the world. Whether it’s their first concert or a long-awaited game, we aim to create an unforgettable journey from the moment they seek tickets until they enter the venue. Our commitment extends to our sellers too, from individual fans to large promoters, ensuring StubHub remains the safest and most convenient platform for ticket transactions globally.Join Our Team:We are on the lookout for an exceptional Senior Software Engineer to become a key member of our Platform Runtime team. In this dynamic role, you will be integral in designing, developing, and sustaining a comprehensive suite of SDKs, services, shared packages, and tools that empower our engineering teams, enhancing productivity and operational efficiency across the organization.About the Team:The Platform Runtime team is committed to creating a seamless, high-performance runtime environment that supports numerous services at StubHub. We prioritize implementing best practices to address essential engineering challenges, including configuration management, connectivity, caching, and messaging.Location: Hybrid (3 days in office/2 days remote) – Century City, CA or Aliso Viejo, CA or New York, NYYour Responsibilities:Design and develop SDKs, services, shared packages, and tools to improve engineering efficiency and productivity.Create an intuitive, cross-language performant runtime environment to serve as a foundation for business/customer-facing services.Architect and implement high-performance, scalable services utilized by internal stakeholders.Act as a subject matter expert in distributed caching and messaging, showcasing a profound understanding of relevant design patterns.Collaborate with engineering teams to identify technical inefficiencies and propose scalable solutions and methodologies.Lead initiatives aimed at boosting performance and scalability across our platform.Promote best practices in software development, ensuring high standards of quality and efficiency.

About WhopWhop is an innovative financial technology company dedicated to empowering individuals and businesses by facilitating sustainable income streams. Our vision is to establish the largest internet marketplace, where users can create, connect, and transact seamlessly on a unified platform. With Whop, users can accept payments, launch new ventures, and interact with a vibrant community.Currently, Whop processes over $3 billion in annual payouts across 144 countries, with growth accelerating at an impressive rate of approximately 25% month over month.We have secured significant investments from renowned institutional investors, including Insight Partners, Bain Capital Ventures, A*, and Peter Thiel, alongside a recent strategic investment from Tether, the world's leading stablecoin company.Our team consists of passionate and driven young entrepreneurs, with over 75% having started their own businesses prior to joining Whop, including 53 former founders and 30 who scaled their ventures beyond $1 million in revenue. Our product leadership boasts expertise from top-tier firms such as Meta and Robinhood.To learn more about us, please visit whop.com.About the RoleAs a Developer Experience Engineer at Whop, you will play a crucial role in enhancing the engineering team's efficiency and productivity. Your focus will be on streamlining our development processes, improving reliability, reducing technical debt, and optimizing our tooling. We are looking for an individual who is passionate about empowering engineers to achieve 10x effectiveness.What You'll DoDevelop tools to swiftly establish local and remote development environments.Enhance and maintain our continuous integration and continuous deployment (CI/CD) systems.Create tools that support gradual rollouts and enable instant rollbacks.Design agentic engineering systems to accelerate development workflows.Establish dependable staging and testing environments.Collaborate with product teams to ensure smooth testing and debugging experiences.Identify and mitigate technical debt, continually finding ways to enhance team efficiency.What You NeedA minimum of 5 years of experience in a software development role.Proven ability to thrive in a dynamic startup environment with limited information.A strong desire to innovate and continually improve the product.Expertise in delivering fast, reliable software with a high attention to detail.

About IEX At IEX, we are dedicated to innovating technology that propels industries forward. Our journey began with the creation of a stock exchange aimed at providing superior performance for all investors. We firmly believe in the power of technology to create equitable opportunities. Drawing on our experience from establishing a high-performance stock exchange, we are now focused on developing technology that simplifies complexity and accelerates growth in various sectors. Our aspiration is to build a trustworthy, disciplined, and diversified organization. We are committed to creating transformative technology while upholding our integrity, and we are just getting started! About the Role We are seeking a talented Platform Engineer, Development who will be instrumental in designing and constructing high-performance tools and infrastructure that enhance QA testing, simulation environments, and core developer workflows. This role is vital for advancing automation, scalability, and reliability across our engineering teams, significantly influencing how software is built, tested, and deployed. You will play a direct role in fortifying the platform's technical framework by writing clean, efficient code, refining internal tools, and enhancing the developer experience. This hands-on position is ideal for a skilled engineer who thrives on tackling complex technical challenges, debugging intricate systems, and collaborating with diverse teams throughout the organization. What You’ll Do Design, develop, and maintain platform tools for QA testing, simulation, and deployment workflows. Create performant, maintainable systems primarily using Java and C++. Automate deployment processes and enhance tools for Linux environments. Collaborate with QA, Data, and Development teams to elevate testing coverage, reliability, and developer efficiency. Address straightforward bug fixes and contribute to platform-level codebases to ensure stability and usability. Assess new technologies and methodologies to optimize platform performance and enhance the internal developer experience. Produce clear, reproducible documentation and help establish best practices in platform engineering. Work closely with downstream teams to gather requirements, clarify needs, and support platform adoption.

At StubHub, we are dedicated to transforming the live event experience on a global scale. Our goal is to create delightful journeys for fans, from their initial search for tickets to the moment they enter the venue. We ensure that both fans and sellers, whether they are individual ticket holders or promoters of major tours, find StubHub to be the safest and most convenient platform for ticket transactions.We are on the lookout for a Software Engineer II to join our dynamic mobile engineering team, which is focused on developing AI-powered consumer experiences that will redefine our marketplace. This innovative team is reimagining how fans discover, evaluate, and purchase live events through highly personalized and intelligent mobile interactions. Instead of merely enhancing existing workflows with AI, we are creating new mobile-first interaction models powered by cutting-edge intelligent systems.As a key member of this team, you will collaborate closely with product managers, designers, backend developers, and AI specialists to bring early-stage initiatives from concept to production. You will have significant ownership over user-facing experiences utilized by millions of fans worldwide.This role offers the chance to work with high autonomy, allowing you to move quickly and play a pivotal role in defining the future of consumer interaction at StubHub.

Join Justworks as a Senior Developer Experience Engineer, where you will play a pivotal role in enhancing our developer experience, streamlining workflows, and fostering innovation. You will collaborate closely with cross-functional teams, ensuring developers have the tools and resources they need to thrive. Your expertise will directly impact the efficiency and satisfaction of our engineering teams.

Join mark43 as a DevOps Engineer focused on enhancing our Developer Experience. In this role, you will collaborate with cross-functional teams to streamline processes, improve system reliability, and foster innovation within our development environment. You will be instrumental in automating deployment pipelines, managing cloud infrastructure, and ensuring high availability of our services.

About ArtemisAt Artemis, we are at the forefront of a transformative shift where traditional finance is seamlessly integrating with digital finance. As a leader in this space, we are building an open data platform that consolidates and standardizes crucial metrics for blockchains, tokens, and stablecoins.Our solutions are trusted by industry giants such as Visa, Circle, Tether, Grayscale, and Franklin Templeton, and our mission is to empower individuals globally to become world-class investors in digital finance.Who We AreInspired by the resilience and determination of explorers like Ernest Shackleton, we are a dedicated team of professionals from diverse backgrounds including traditional finance and crypto. Our culture is founded on passion, mental fortitude, and the drive to tackle challenging problems. Join us if you're ready to make an impact!

At StubHub, we are on a transformative journey to elevate the live event experience globally. Whether it's a person's first ticket purchase or their hundredth, our mission is to provide enjoyment and satisfaction from the moment they start their search until they enter the venue. We also cater to our sellers, from fans listing a single ticket to promoters of major tours, ensuring StubHub is the safest and most convenient platform for millions of users worldwide.Join us as a Software Engineer II, where you will be instrumental in designing and developing cutting-edge technologies and intricate features. In this role, you will face significant challenges and contribute to innovative solutions that drive our success. We seek individuals with a proactive attitude and a passion for problem-solving. Your career here will involve diverse projects aligned with business needs, and we value versatility, a growth mindset, and enthusiasm for tackling new challenges. Location: Hybrid (3 days in office/2 days remote) – New York, NY About the Team: The Consumer Experience (CX) team is dedicated to enhancing the product experience for fans discovering, buying, and selling tickets through our web and mobile platforms. We are committed to fulfilling StubHub’s mission to be the leading global destination for live events by crafting engaging experiences for millions of fans daily. Our focus is on understanding user needs and delivering both short-term and long-term feature innovations that are effective and enjoyable. With operations in over 60 regions and 30 languages, we prioritize a personalized experience for every user. Our cross-functional team collaborates on product, design, engineering, and data, fostering a culture of innovation through diversity of thought and transparency.

About RainAt Rain, we are pioneering the future of payments on a global scale. Our dedicated team of innovative builders and seasoned founders is committed to making stablecoins practical for everyday transactions. With our advanced infrastructure, we facilitate card transactions, cross-border payments, B2B transactions, remittances, and much more. By collaborating with fintech companies, neobanks, and various institutions, we empower them to deliver solutions that are not only global but also inclusive and efficient. Join us to create significant change at a rapidly growing company backed by leading investors in the fintech, crypto, and SaaS sectors, including Sapphire Ventures, Norwest, Galaxy Ventures, Lightspeed, and Khosla. If you are driven, curious, and eager to contribute to a borderless financial future, we want to connect with you.Our PhilosophyWe embrace a culture of openness and flat hierarchies, allowing you to develop in a role that aligns with your aspirations. All team members, regardless of their position, are encouraged to explore ideas and influence the direction of the company.Role OverviewAs a Fullstack Software Engineer at Rain, you will play a pivotal role in developing our rewards and co-brand platform. Your responsibilities will include maintaining, enhancing, and building third-party rewards programs, primarily in collaboration with our major league sports partners, and integrating new payment solutions into these applications. You will take charge of the technology stack and code that underpins our rewards and co-branded payment initiatives.Key ResponsibilitiesContribute significantly to the technical and product roadmapDevelop products across our stack utilizing React, Typescript, NextJS, Tailwind, and NodeJS, focusing on RewardsLead architectural decisions and drive the technical roadmap as we scaleEngage with smart contracts across multiple blockchain networksQualificationsProficiency in JavaScript, React, Typescript, NextJS, Tailwind, NodeJS (experience in a subset of these technologies is acceptable)A passion for building, including personal projects that showcase your skillsThis role is suited for candidates with 4+ years of experience; compensation will be aligned with your backgroundPreferred QualificationsExperience in fintech (particularly with neobanks or card issuance is a plus)Familiarity with decentralized applications (dApps)

As the Director of Platform Development at versant3, you will lead innovative projects that shape the future of our technology platform. You will collaborate with cross-functional teams to define strategies and drive the execution of platform enhancements. Your vision will help us deliver exceptional solutions that meet the needs of our clients and drive business growth.

At CLEAR, we are pioneering the future of secure identity. Our mission is to enhance safety and convenience in both physical and digital experiences. With over 38 million members and a rapidly expanding network of partners worldwide, our secure identity platform is revolutionizing how individuals live, work, and travel. Whether at airports, stadiums, or in everyday situations, CLEAR is committed to providing seamless experiences for our members. As a recognized leader in digital and biometric identification, CLEAR is dedicated to minimizing friction during ID checks for our members. We are in search of a talented Senior Software Engineer to contribute to the development of next-generation products that extend beyond traditional ID solutions, empowering our members to harness the full potential of a connected digital identity. In this role, you will engage in the design, implementation, testing, and deployment of applications that enhance our platform, ensuring that member privacy and security remain paramount.

Join our dynamic team at counsel as a Senior Fullstack Software Engineer, where you will play a pivotal role in designing and developing cutting-edge applications. You will collaborate with cross-functional teams to build scalable and efficient software solutions. This is an opportunity to leverage your expertise in both front-end and back-end technologies to create impactful products.

Role Overview Sigma Computing is growing its engineering team in New York City. The Senior Fullstack Software Engineer will help shape how users explore and interact with data. This role focuses on building technology that makes data more accessible and intuitive for a broad audience. What You Will Do Work on complex problems to create interactive experiences for data warehouse users, making analysis and exploration easier. Use modern programming languages and tools, including Rust, Go, GraphQL, and Kubernetes, throughout the development process. Build infrastructure to support Sigma Computing's cloud application. Develop algorithms and techniques that improve performance and interactivity in a multi-tenant cloud environment. Design and implement new features and technologies for a rapidly expanding user base. Collaborate across backend, frontend, design, product, customer support, sales, and marketing teams to deliver a strong product.

Cloaked is a pioneering privacy startup focused on restoring consumer confidence in the management of personal data. Our mission centers around building an internet that prioritizes user needs, with personal privacy and opt-in consent at its foundation. Our innovative product functions as a virtual “cloak”, allowing users to navigate any website—be it Facebook, Amazon, or others—while providing the option to share complete, partial, or no personal information according to their preferences.

Join WRITER: The Future of AI-Powered WorkAt WRITER, we're revolutionizing the workplace with our cutting-edge AI solutions. Our mission is to augment human capabilities through superintelligence, enabling seamless collaboration between IT and business teams to drive transformative outcomes. Our comprehensive platform empowers renowned organizations such as Mars, Marriott, Uber, and Vanguard to create and deploy AI agents powered by WRITER's enterprise-grade LLMs. With a valuation of $1.9B and support from top-tier investors like Premji Invest, Radical Ventures, and ICONIQ Growth, WRITER is solidifying its status as a frontrunner in the enterprise generative AI landscape.Founded in 2020, we have established offices in San Francisco, New York City, Austin, Chicago, and London. Our dynamic team is fueled by a passion for innovation, and we are eager to welcome talented builders and thinkers to help shape the future of work with AI. Position OverviewWe are looking for a talented fullstack Software Engineer to join our engineering team, focusing on the development of sophisticated AI-driven agent systems. These systems will autonomously execute workflows and manage complex tasks, significantly enhancing productivity across enterprise applications. As a key contributor, you will design, develop, and scale next-generation AI agents that integrate seamlessly with enterprise data and services to address real-world challenges. Collaboration with cross-functional teams will be essential in transforming intricate agent concepts into fully operational systems.‍ Key ResponsibilitiesArchitect, implement, and sustain scalable, secure agent-driven services and systems leveraging modern AI frameworks.Build and enhance robust infrastructure and high-throughput APIs, concentrating on critical agent capabilities such as memory management, communication protocols, skills, intelligent decision-making, security, and workflow oversight.Integrate agent functionalities with backend services, data repositories, vector databases, search/retrieval systems, and third-party APIs.Work closely with product managers, AI researchers, data engineers, and UX teams to convert high-level agent use cases into resilient, production-ready software.Ensure the reliability, monitoring, and observability of all agent components, including metrics, logging, CI/CD processes, and fault tolerance.Participate in architectural design discussions and conduct thorough code reviews to maintain high-quality standards.

About N1:N1 is an innovative blockchain network that is hyper-performant and horizontally scalable. Our mission is to facilitate trustless computing at the scale of the internet, revolutionizing the way digital interactions occur.Our talented team comprises individuals with diverse backgrounds from prestigious institutions such as Harvard, Carnegie Mellon University, DFINITY, VMWare, and Galaxy Digital. We are proud to be supported by leading investment firms like Founders Fund, Kraken Ventures, SALT, and Amber Group.Position Overview:We are excited to invite a Full-Stack Software Engineer Intern to join our dynamic engineering team. This full-time role will involve the development of robust front-end, server-side, and database applications, with a primary focus on blockchain technology. Ideal candidates should be detail-oriented, innovative, and possess a strong product mindset. You will take ownership of enhancing our web platforms and internal tools, ensuring they are user-friendly, secure, and high-performing.

About Sei LabsAt Sei Labs, we are pioneers in developing open-source technology for the high-performance Sei Blockchain, the first EVM Layer 1 blockchain designed for parallelization and industry-scale performance. Our unique optimizations enable Web3 applications to achieve Web2 levels of scalability and efficiency, fostering the widespread adoption of digital assets.Our talented teams are composed of industry veterans from leading companies like Google, Goldman Sachs, Robinhood, Nvidia, and Databricks, all dedicated to onboarding the next billion users into a thriving ecosystem of applications.Having raised over $30 million from prestigious investors such as Jump Crypto, Multicoin Capital, Coinbase Ventures, Distributed Global, Hudson River Trading, and Flow Traders, we are positioned for significant growth.Discover more about us on our website and explore our documentation.About the RoleSei Labs is on the lookout for a Fullstack Software Engineer to help redefine the future of Web3 by enabling innovative, impactful applications across the Sei Blockchain. In this role, you will collaborate with a team at the leading edge of blockchain technology, working closely with our ecosystem partners to develop state-of-the-art decentralized applications (dApps) that span various Web3 domains—from decentralized exchanges (DEXs) and gaming to decentralized physical infrastructure networks (DePin), artificial intelligence, and more. If you thrive in a fast-paced, community-oriented environment and are passionate about continuous learning and rapid development, this is an exceptional opportunity to expand the frontiers of decentralized technology.