Full Stack Product Engineer at athena-hq | San Francisco

Our Mission:Join us as a Full Stack Product Engineer at AthenaHQ, where we empower global brands through our cutting-edge AI Search platform.We seek an engineer who thrives on product ownership.Work with state-of-the-art technologies, engage directly with customers, and play a key role in shaping our technical architecture and tooling choices.Your day will involve iterating based on customer feedback, scoping new product features, and proactively addressing customer challenges.Technical Stack:Frontend: Next.js App Router, React 19, Motion, Tailwind CSS, and Radix PrimitivesBackend: Node.js, Temporal, Kubernetes, PostgreSQL, OLAPKey Outcomes:Deliver full-stack product features utilizing Next.js and TypeScriptCraft clean and effective database schemas and queriesEstablish durable Temporal workflows for intricate business logicCreate responsive and accessible UI componentsPrioritize performance and user experienceInfluence architectural and technology decisionsCore Competencies:Proficient in Next.js and TypeScriptExperience in building and shipping production applicationsFamiliar with contemporary CSS/UI frameworksUnderstanding of distributed systemsDemonstrates humility while taking pride in workBonus Qualifications:Experience with TemporalFamiliarity with marketing technology and content management systems (CMS)

athena-hq is looking for a Growth Engineer to join the team in San Francisco. This position is in-person and focuses on building and improving solutions that drive user growth and enhance the product. What you will do Develop and launch technical projects that contribute to company growth Use data analytics to spot opportunities and track the results of your work Collaborate with product and engineering teams to make the user experience better Test new tools and methods to refine growth strategies Location This role is based in San Francisco and requires working onsite.

Join athena-hq as a Founding Growth Marketer, where you'll play a pivotal role in our growth strategy and marketing initiatives. This position is designed for a dynamic, results-oriented marketer who thrives in a fast-paced startup environment. You will be responsible for developing and executing innovative marketing campaigns to drive user acquisition and engagement.

Join us in revolutionizing the future of AI by shaping the narrative around document understanding.About the RoleWe are seeking an innovative Full-Stack Engineer dedicated to rapidly delivering AI products. If you thrive in a dynamic environment and are ready to take on diverse challenges, this role is for you. You will be responsible for developing our SaaS platform using Next.js and Python, contributing to open-source frameworks, and collaborating closely with customers to transform visionary ideas into tangible solutions. If you have experience launching AI applications that engage real users and can swiftly transition from concept to execution, we would love to connect.ResponsibilitiesLead front-end and full-stack development for our managed applications and SaaS offerings.Front-end technologies: Next.js, shadcn, react-query, etc.Back-end technologies: Python, Node.js, Kubernetes, Docker, Terraform, cloud services, databases, etc.Develop and maintain features for our open-source frameworks using Python and TypeScript.Collaborate with clients to create proof-of-concept and production-ready solutions.QualificationsMinimum 2 years of experience in full-stack development.Proven track record of launching web applications or new product features from the ground up, successfully moving from prototype to production.Experience in deploying AI/LLM-native applications, encompassing both user experience and core algorithm development.Rapidly iterate on solutions based on customer feedback, driving feature development and engaging in proactive user discovery.Experience in cross-functional teamwork, exemplifying the ability to take on product management responsibilities to scope and design features effectively.Demonstrated ability to scale applications to millions of users.Preferred: Background in machine learning and natural language processing.LocationWe foster a hybrid-friendly culture with our primary operations based in downtown San Francisco.Why Join Us?Meaningful Impact: Contribute to cutting-edge AI products that transform knowledge accessibility.Supportive Environment: Collaborate with a team of dedicated professionals who are passionate about innovation.

About StackAIStackAI is a revolutionary no-code AI workflow platform that enables businesses to construct, implement, and expand AI-driven workflows without requiring extensive machine learning expertise. With a growing user base and increasing enterprise adoption, our goal is to democratize access to large language models (LLMs), empowering every business operator—beyond just developers. Supported by Y Combinator and top-tier investors, we are laying the groundwork for the AI-driven future of work.The RoleAs a Senior Full Stack Engineer, you will be instrumental in defining the product and technical architecture at StackAI. Your responsibilities will span the entire technology stack, from crafting scalable backend systems to creating stunning and user-friendly frontend interfaces, and incorporating advanced AI models into our platform. This role offers significant impact, as you will work closely with the founding team, take charge of essential product features, and shape the engineering culture of a rapidly evolving startup.We seek exceptional 10X engineers—innovative builders who can consistently deliver results in a dynamic environment, remain inquisitive, and excel in diverse roles.ResponsibilitiesIn this role, you will:Build and own the entire platform, from backend services and APIs to frontend interfaces.Create robust, scalable backend systems utilizing Python and FastAPI (or similar), with optimized databases (SQL/NoSQL).Design and maintain high-quality user interfaces using React, Next.js, TypeScript, and Tailwind CSS, ensuring polished, intuitive, and responsive user experiences.Integrate new AI models and features into our products for seamless performance and enhanced value.Manage StackAI’s landing and product pages to establish benchmarks for clarity, design, and quality.Collaborate across the stack to connect backend services with frontend applications seamlessly.Engage with design, product, and customers to refine product direction and prioritize user needs.Stay at the forefront of full-stack technologies, promoting best practices and innovative solutions.Assist with customer support as needed; every team member contributes to user satisfaction.

About the TeamThe ChatGPT Enterprise team at OpenAI operates within the B2B Applications organization, dedicated to tailoring ChatGPT for large-scale business applications. Our mission is to create an effortless experience that allows users to access the same product for personal and professional use, while addressing the specific needs of enterprises, including robust security protocols, administrative controls, regulatory compliance (e.g., HIPAA/FINRA), and geographic data residency requirements. Our roadmap encompasses three primary workstreams: enterprise controls, user engagement & activation, and tailored company-specific products (e.g., Company Knowledge).About the RoleWe are seeking talented full stack engineers to enhance the product experience for ChatGPT, ensuring it becomes an essential tool for teams. This position emphasizes user benefit and activation: crafting collaborative experiences, onboarding methods, and engagement strategies that empower employees to discover and utilize advanced functionalities, such as agents and customized GPT-like workflows.In this role, you will:Develop comprehensive features across frontend, backend-for-frontend, and service layers to enhance team collaboration and work sharing within ChatGPT.Design and implement activation and engagement systems (e.g., product hooks, discovery interfaces, and user rollout processes) to increase adoption among various user groups within an organization.Collaborate cross-functionally with engineers focused on enterprise controls (security, permissions, compliance, data residency) and company knowledge/search to ensure features are launched with appropriate safeguards and enterprise readiness.Work closely with adjacent teams (including API and agent initiatives) to seamlessly integrate agent functionalities into the ChatGPT user interface, ensuring a native, secure, and scalable experience for business applications.

Superhuman embraces a vibrant hybrid working model that perfectly balances focused individual work with collaborative in-person interactions to cultivate trust, innovation, and a robust team culture.About SuperhumanSuperhuman, now empowered by Grammarly, is an innovative AI productivity platform dedicated to unlocking the extraordinary potential within individuals. Our suite of applications seamlessly integrates AI into daily workflows, connecting with over 1 million applications and websites. Our offerings include Grammarly's writing enhancement tools, Coda's collaborative workspaces, Mail's inbox management solutions, and Go, our proactive AI assistant that intuitively understands context to provide timely assistance. Since our inception in 2009, Superhuman has empowered over 40 million users, 50,000 organizations, and 3,000 educational institutions worldwide, enabling them to streamline their tasks and concentrate on what truly matters. Discover more at superhuman.com and explore our core values here.The OpportunityTo fuel our ambitious growth, we are seeking talented Full-Stack Software Engineers to join our engineering teams. As a Full-Stack Engineer at Superhuman, you will be instrumental in developing key components of our product offerings, infrastructure, and features that enhance the writing capabilities of our 40 million users. This role offers a unique opportunity to engage in both Front-End and Back-End development, contributing to highly visible and impactful projects.Our engineers and researchers enjoy the freedom to innovate and drive breakthroughs that directly influence our product roadmap. As we scale our interfaces, algorithms, and infrastructure, the complexity of our technical challenges continues to grow. You can learn more about our technical endeavors on our technical blog.Superhuman is experiencing rapid growth, creating opportunities to join dynamic teams, learn from seasoned professionals, and build innovative products from the ground up. Within our expanding engineering organization, you will find ample room for ownership and a direct impact on user experience.As a Full-Stack Engineer, your responsibilities will include:Rapidly building and deploying code, with the opportunity to deliver significant features within your first few months.Developing and maintaining high-performance Back-End services and creating engaging user interfaces on the Front-End.

Join our dynamic team at gumloop as a Senior Full Stack Engineer, where you will play a pivotal role in shaping our technology landscape.Take ownership of end-to-end feature development: design, implement, test, deploy, and maintain your creations in production.Collaborate closely with users to swiftly transform feedback into actionable improvements, achieving results within hours, not days.Develop and manage scalable front-end and back-end solutions that maintain speed and reliability as user traffic increases.Contribute to the growth of the team by reviewing pull requests, providing context, and mentoring junior engineers.

At CreatorIQ, we are dedicated to revolutionizing creator-led growth, empowering over 1,300 global brands and agencies to thrive.Our mission is to humanize businesses while amplifying the impact of individuals. Guided by our core values—intentionality, excellence, collective journey, and humanity—we have been recognized as one of the best workplaces by various programs, including BuiltIn LA and NY. Our growth story includes being named one of the Fastest-Growing Companies in North America by Deloitte Technology Fast 500™ for four consecutive years, and being highlighted as a leader in IDC MarketScape: Worldwide Influencer Marketing Platforms for Large Enterprises in 2025, among others. Our flexible work model fosters collaboration and innovation, accommodating diverse working styles.Join us in our exciting journey. Become a vital part of our dynamic team and help transform the industry!Senior Full Stack Engineer, Creator RecruitWe are looking for a talented Senior Full Stack Engineer to enhance our Creator Tools team. Your contributions will significantly improve user experiences and help us develop scalable solutions for our expanding platform.The ideal candidate will possess a strong background in frontend frameworks, solid backend development skills, and a collaborative spirit suited for a fast-paced environment. You should be ready to take ownership of features, contribute to architectural decisions, and maintain high coding standards.The Creator Tools team is responsible for developing all user-facing features on our platform, directly impacting the lives and livelihoods of creators who utilize our tools to earn and sustain their businesses.From payment processing and social authentication to e-commerce solutions and campaign workflows, we enable the full creator experience. Every feature you develop and enhancement you implement is integral to delivering a seamless, intuitive platform that empowers creators to grow and earn with confidence.This role allows you to make an immediate and meaningful difference in the lives of creators who rely on our platform to pursue their passions.

Krew is revolutionizing the credit-servicing industry with the most advanced AI-driven credit-servicing agents. Backed by Long Journey Ventures and a roster of strategic angel investors, including notable figures like Ryan Hoover, Charlie Songhurst, and Michael Jones, we are a highly skilled team comprised of alumni from prestigious organizations such as Figure Robotics, Optiver, and the United Nations.Our omnichannel agents are already supporting over 100,000 consumers on their journey to financial wellness, and we aim to address more than $1 trillion in consumer delinquencies globally, adopting a compassionate and human-centric approach to financial health.Job Overview:We are in search of a talented Full Stack Engineer who is a key member of our technical team. You will thrive in a fast-paced environment and appreciate the value of high-quality code while collaborating with a forward-thinking team.Key Responsibilities:Develop and implement front-end interfaces using Next.jsCreate and maintain backend APIs and services that drive our AI agents and operational tools, primarily utilizing Python (FastAPI)Deliver user-facing features from concept to deployment, ensuring seamless integration across data models, APIs, and UIEnhance system reliability, observability, and performance throughout the tech stackCollaborate closely with design, operations, and compliance teams to ensure the delivery of secure and compliant featuresConduct testing, enforce high code quality standards, and engage in design and code review discussionsContribute to the evolution of our engineering standards and product development processesMinimum Qualifications:Minimum of 2 years of full-time professional experience in full-stack engineeringProficiency in backend development using Python or GoDemonstrated commitment to code quality through testing, code reviews, and documentationPreferred Qualifications:Experience in FinTech, Risk Management, or Compliance is advantageous but not required

About HappyRobotHappyRobot is pioneering the AI-native operating system for the real economy—an innovative platform that seamlessly integrates intelligence with actionable outcomes. By harnessing real-time insights, specialized AI agents, and a coordinating intelligence, we empower enterprises to manage intricate, mission-critical operations with genuine autonomy.Our AI OS continuously accumulates knowledge, optimizes processes at every level, and adapts over time. We're initially focusing on supply chain and large-scale industrial operations, where resilience, speed, and ongoing enhancement are paramount—liberating humans to concentrate on strategic thinking, creativity, and other high-value pursuits.Discover more about our vision in our Manifesto. HappyRobot has successfully secured $62M in funding to date, including a recent $44M Series B round in September 2025. Our esteemed investors include Y Combinator (YC), Andreessen Horowitz (a16z), and Base10, who share our commitment to transforming enterprise operations. We are channeling this investment into assembling a world-class team—individuals with unwavering determination, exceptional problem-solving abilities, and a passion for pushing boundaries in a dynamic, high-pressure environment. If this resonates with you, we invite you to join us at HappyRobot.About The RoleAt HappyRobot, Full Stack Engineers take charge of significant components of the product and infrastructure from start to finish.We are seeking creators who thrive in uncertain environments, have a profound appreciation for their craft, and desire authentic ownership over their creations.

About Tacit Tacit is an early-stage deep tech startup based in San Francisco, focused on hardware that changes how people interact with computers. Backed by General Catalyst, Khosla Ventures, and Greylock Partners, the team brings experience from Stanford, BrainGate, Oculus, and Tesla. The company is committed to solving complex engineering problems to deliver new products that push the boundaries of human-computer interaction. Role Overview The Full-Stack Software Engineer will help turn ambitious ideas into real products, working across Tacit's software stack. This role involves taking features from initial concept through to deployment and shaping user experiences that support the company’s mission. What You Will Do Develop the internal product stack to improve workflows and prototypes across devices and companion clients. Build and expand internal applications for demos and data collection, supporting idea testing and user experience validation. Prototype new features for human-computer interaction, iterate with test users, and refine until the experience feels seamless. Design and run product experiments, including A/B tests and feedback loops, to quickly gather insights and guide product direction. Streamline data collection and participant experiences, including setup flows, session reliability, metadata capture, monitoring, and labeling. Develop demo features that showcase real-time sensing and inference in engaging, reliable ways. Find and implement integrations that improve team workflows and efficiency. Create and improve automated testing and release systems, such as CI/CD pipelines, smoke tests, and regression checks, to support frequent updates. Work closely with machine learning, hardware, and industrial design teams to define requirements, deliver results, troubleshoot, optimize, and ensure reliability. Qualifications Strong skills in Python (FastAPI, Pydantic; experience with pandas or numpy) and modern TypeScript/React. Experience building production backends (APIs, data models, reliability, observability) and delivering features for end users. History of shipping multiple products from start to finish.

Join Campfire as a Full Stack Engineer and play a pivotal role in transforming the accounting software industry. Based at our San Francisco headquarters, this in-office position invites you to collaborate closely with our talented team five days a week. About CampfireAt Campfire, we are driven by our mission to revolutionize accounting software, offering innovative solutions to startups and mid-sized tech companies. As proud graduates of Y Combinator's Summer 2023 cohort, we have secured support from esteemed investors like Foundation Capital and are witnessing rapid growth in our customer base.Your Role As a key member of our engineering team, you will be instrumental in designing and building our mission-critical software that enhances customer experiences. What We’re Looking ForWe seek an individual who: Possesses a strong foundation in Python, NextJS/React, and Tailwind.Thrives in a fast-paced, agile environment with minimal structure.Values autonomy, is self-motivated, and can effectively lead projects to completion. Ideal CandidateYou're driven not just by the prospect of a job, but by the desire to tackle challenges head-on. You're passionate about developing user-centric solutions and eager to collaborate, learn, and grow within a dynamic startup culture. How to ConnectIf you believe you’re the right fit, we want to hear from you! Share your journey with us and let’s discuss how you can contribute to igniting change at Campfire.‍ BenefitsWe offer exceptional benefits including 100% premium coverage for employees and 80% for dependents, along with comprehensive healthcare and dental options.

About the RoleJoin us as a Full Stack Engineer at nash, where you will be instrumental in crafting, enhancing, and scaling our innovative product offerings. Collaborate closely with our CTO, co-founder, and dedicated engineering and product teams to spearhead the development of new features across our technology stack, elevating both the user experience on the frontend and the robustness of our backend systems. This is a unique opportunity to be part of nash during a pivotal growth phase, as we create solutions for enterprises and small to medium businesses across the logistics value chain.Key ResponsibilitiesDesign, develop, and manage scalable web applications throughout the entire stack.Create and optimize responsive and high-performance user interfaces.Build and maintain backend services and APIs that fuel our platform.Collaborate with product, design, and engineering teams to quickly build, test, and iterate on features within our existing platform.Diagnose and resolve production issues across our systems, ensuring reliability and performance.Promote best practices in code quality, testing, and maintainability.Independently and collaboratively tackle complex technical challenges.QualificationsA minimum of 4 years of experience in building and deploying full-stack web applications.Proficient in React (or similar frontend frameworks) and Python.Experience with GraphQL, RESTful APIs, and database management (SQL and NoSQL).Strong grasp of modern frontend development principles, including TypeScript, React, component-driven architecture, and contemporary tooling.Familiarity with cloud platforms (AWS, GCP, or Azure) and best practices for deployment.A passion for delivering exceptional user experiences and developing scalable backend systems.Excellent problem-solving capabilities and the ability to work autonomously in a dynamic environment.Preference for candidates located in the Bay Area, as nash operates a hybrid-first product team with an office in San Francisco.Startup experience is a plus, but not mandatory.Bonus: Experience with Flask, SQLAlchemy, WebSockets, and integration-heavy systems.

Join Plaud as a Senior Full Stack Engineer and contribute to innovative software solutions that make a difference. This role offers the opportunity to work in a dynamic environment where you will collaborate with cross-functional teams to design, develop, and implement web applications.

Join our dynamic team at Plaud as a Full Stack Engineer, where you will play a crucial role in designing and developing innovative web applications. We are looking for a talented engineer who is passionate about technology and eager to solve complex problems in a collaborative environment.

At Siftstack, we are revolutionizing the development, testing, and operation of modern machines. Our innovative platform empowers engineers with real-time observability over high-frequency telemetry, effectively eliminating bottlenecks and facilitating faster, more dependable development.Founded by a team of experts from SpaceX, Google, and Palantir, Siftstack was inspired by our experience with pioneering projects like Dragon, Falcon, Starlink, and Starship. Our mission-critical infrastructure is designed for precision and scalability, meeting the highest demands of reliability in engineering.As an early-stage engineer at Siftstack, you will not only write code, but you will also play a pivotal role in defining our architecture, shaping our product, and cultivating a culture focused on addressing real engineering challenges. If you thrive on tackling complex technical problems and want to build foundational systems that support intricate machines, we'd love to hear from you.

About LightfieldLightfield is a groundbreaking AI-powered CRM that dynamically organizes your email, calendar, and meeting interactions. By capturing every engagement, it transforms them into actionable insights: accounts, tasks, follow-ups, and critical context, ensuring that nothing is overlooked.We are revolutionizing CRM from the ground up. Rather than constraining teams with inflexible systems, Lightfield evolves through understanding how businesses truly operate, automating processes, and revealing insights that foster growth. We are dedicated to creating the CRM platform of our dreams: quick, smart, and genuinely supportive.Backed by renowned investors including Greylock, Lightspeed, and Coatue, our team has a rich history of innovation, having previously developed Tome, a generative AI presentation tool that serves over 25 million users. Our diverse backgrounds include experience with Llama, Instagram, Facebook Messenger, Pinterest, Google, and Salesforce.About the RoleWe are in search of a talented, imaginative, and adaptable Full Stack Engineer who is excited about the opportunity to create scalable, high-performance features and systems that provide exceptional AI product experiences.At Lightfield, our engineers take on projects from concept to realization, collaborating interdepartmentally to push the boundaries of applied AI systems development. You will partner with a skilled team to deliver industry-leading solutions and help shape the future of Lightfield's product and technical vision.Your ResponsibilitiesWork closely with product leaders to identify customer challenges, define requirements, and execute solutions.Develop and manage full-stack product features and systems from end to end, ensuring reliability, scalability, and performance.Create observability metrics to facilitate seamless operations, proactive issue resolution, and ongoing enhancements.Guide and mentor team members, engage in code reviews, and contribute to cultivating our engineering culture and practices.Play a role in building a world-class engineering team through recruitment, mentorship, and knowledge sharing.Your QualificationsA minimum of 3 years of software development experience, with a solid foundation in both front-end and back-end technologies.Proven experience in building scalable, high-performance systems capable of managing complex customer workflows and extensive data processing.A keen interest in Large Language Models (LLMs) and their applications in real-world scenarios.

About DelveDelve is pioneering an AI-native platform that revolutionizes compliance by transforming tedious manual tasks into seamless automated workflows.As the fastest-growing compliance company on the market, Delve empowers hundreds of organizations to reclaim countless hours (including clients like Lovable, 11x, WisprFlow) by removing busywork and allowing teams to concentrate on what truly matters — building securely.Supported by prominent investors including Insight Partners, General Catalyst, and Y Combinator, we have recently secured a $32M Series A funding round and are rapidly scaling our operations!Our diverse team comprises former founders, Olympic medalists, and engineers from top institutions such as OpenAI, Stanford, MIT, and Berkeley. We are on a mission to eliminate busywork for humanity, starting with compliance.About the RoleWe are seeking a talented Full Stack Engineer to take ownership of critical product features from inception to deployment. You will utilize technologies such as React, TypeScript, Node.js, and Postgres to develop features that enhance AI-driven workflows and core user experiences.You will receive high-level product direction and will be entrusted to scope, design, and implement effective solutions swiftly and independently. This position is ideal for someone who can navigate ambiguity, proactively overcome obstacles, and deliver results without waiting for perfect specifications.What You’ll DoDevelop full-stack product features across our core application and AI-powered workflowsConvert high-level product objectives into tangible backend and frontend solutionsMake informed decisions about speed, scope, and user experience without requiring excessive guidanceCollaborate closely with engineers and product teams during sprints to ensure rapid advancement and alignmentEngage with all parts of the stack: React, Next.js, Node.js, Postgres, ORM ToolsWhat We’re Looking For2–4 years of experience in building full-stack products within production environmentsProficiency in both frontend and backend technologies — React, TypeScript, TailwindCSS, Node.js, PostgresCapability to take ownership of a problem statement and drive the solution through to deploymentUnderstanding of when to act quickly, when to seek clarification, and when to refine detailsTeam-oriented mindset with no ego or drama — just focused execution and sound judgmentWhy In-Person SF Matters...

About ApiphanyApiphany is a cutting-edge AI company dedicated to advancing physical product development. We enable innovators across sectors such as automotive, aerospace, medtech, and energy to convert vast amounts of unstructured technical data into real-time, actionable insights. Supported by prominent investors including Markforged, Databricks, GM, and Character, our mission is to redefine engineering decision-making, transforming complexity into clarity for leading manufacturers.Our models are tailored to address the intricacies of engineering and manufacturing, comprehending physics principles, design specifications, and programming constraints. We are a compact, elite team of builders from Stanford, Berkeley, MIT, UW, and CMU, complemented by industry veterans from GM, Ford, and Genesis Therapeutics. Together, we are passionate about revolutionizing hard-tech and establishing a category-defining enterprise.About the RoleDevelop AI-powered manufacturing applications:Create full-stack solutions that seamlessly integrate real-time AI models for predictive maintenance, anomaly detection, defect classification, and process optimization.Engineer for complexity and scale:Design and implement resilient, distributed systems capable of managing large-scale data pipelines, streaming industrial sensor data, and real-time AI inference.Integrate with factory-floor systems:Collaborate with IIoT, MES, SCADA, PLCs, and edge computing to deploy AI models that engage with manufacturing processes instantaneously.Bridge AI and human decision-making:Craft intuitive, high-performance interfaces that empower operators, engineers, and managers to interpret AI-driven insights and take decisive action.Own the full-stack:Build and optimize front-end applications (React, TypeScript, etc.) and backend services (Python, Node.js, or similar), ensuring cohesive end-to-end experiences.Ship in real-world production environments:Deploy software that operates in factories, on edge devices, or in the cloud, adhering to the constraints of industrial infrastructure.Iterate quickly in a high-uncertainty domain:Prototype, test, and refine solutions based on direct user feedback and real-world performance metrics.