Sr. Software Engineer, Fullstack Build a safer world with us, one incident at a time.Ambient.ai is the category creator and leader in Agentic Physical Security. Powered by Ambient Pulsar, the first reasoning Vision-Language Model purpose-built for physical security, our platform seamlessly integrates with existing security cameras and physical access control systems to unify monitoring, access control, threat assessment, response, and investigations through an always-on reasoning layer that augments security operators with superhuman capabilities. The results: 95% fewer false alarms, investigations 20x faster, and 10x faster response.The momentum speaks for itself: we doubled new ARR in FY26, we process 200M+ video hours per day, and have delivered results for world-class customers including Cisco, ServiceNow, SentinelOne, TikTok, Bayer, and MoMA. That kind of momentum creates an environment where great people thrive, and it shows: we recently ranked #71 out of 500 on the Forbes best startup employers list.Founded in 2017 and backed by Andreessen Horowitz, Y Combinator, and Allegion Ventures, Ambient.ai is on a fast-paced journey to fulfill our mission: prevent every security incident possible.Ready to learn more? Connect with us on LinkedIn and YouTubeAbout the role:We’re looking for a Full Stack Engineer to help build and scale the core systems that power Ambient.ai’s real-time AI security platform. In this role, you’ll work on software that ingests, processes, and interprets massive volumes of video and event data in real time - transforming raw signals into actionable intelligence for some of the world’s largest enterprises.You can expect to regularly take on technically challenging problems in a fast-moving, collaborative environment and to see your work deployed in mission-critical customer environments.What you'll do:Build and maintain full stack features using React, TypeScript and PythonPartner with product and design to translate user needs into intuitive interfaces and high quality workflowsCreate and maintain APIs and backend services. This includes working with data flows between edge devices, cloud services and client applicationsOptimize performance across the stack with a focus on responsiveness, reliability and scalabilityContribute to architectural decisions including data storage, caching, service boundaries and partitioningReview code, mentor other engineers and promote strong engineering practicesWork with cloud infrastructure, CI/CD pipelines and modern DevOps toolingParticipate in planning, design reviews and cross-team collaborationWhat you'll bring:BS in Computer Science or equivalent field with a programming backgroundAt least 4+ years of experience building scalable and available web services.Strong experience working with at least one of the Object-oriented Programming Languages, like Python, Django, and React.js, would be requiredExpertise in APIs (REST / GraphQL), general web backend design principles, relational databases (MySQL / Postgres), streaming pipelines, pub-sub systems, and indexing systemsWrite clean and maintainable codeDesign and implement complex systems including communication between several services (pub-sub paradigm, microservices architecture)Manage service reliability, including any cloud operations work (AWS, Google Cloud)Experience with Redis, Kafka, RabbitMQ, ActiveMQ, or similar tools/technologies will be highly preferredExperience building SaaS product offerings will be a huge advantage.Why join us:We are creating an entirely new category within a 120+ billion-dollar physical security industry and looking for team members who are also passionate about our mission to prevent every security incident possibleWe have an impressive customer roster of F500 companies, including Adobe, SentinelOne, and TikTokRegular Full-time employees receive stock options for the opportunity to share ownership in the success of our companyWe offer flexible time off to rest and recharge, including Winter Break (time off between Christmas and New Year’s for most roles, depending on customer demand)The latest tech and awesome swag will be delivered to your doorEnjoy a full range of opportunities to connect with your awesome co-workersWe love to hike, are foodies, and love music! Check out our most recent Ambient Spotify PlaylistWe’ve found that in-person time meaningfully supports collaboration, creativity, and team alignment. Our talent, engineering, product, design, and marketing teams work from our Redwood City office three days a week. All other Bay Area employees join on Fridays to stay connected and close out the week together.Ready to learn more? Connect with us onLinkedIn| YouTubeWe’ve found that in-person time meaningfully supports collaboration, creativity, and team alignment. Our talent, engineering, product, design, and marketing teams work from our Redwood City office three days a week. All other Bay Area employees join on Fridays to stay connected and close out the week together.#LI-HybridAmbient.ai is proud to be an Equal Opportunity Employer. Ambient does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender identity, gender expression, national origin, ancestry citizenship, age, physical or mental disability, legally protected medical condition, family care status, military or veteran status, marital status, registered domestic partner status, sexual orientation, genetic information, or any other basis protected by local, state, or federal laws. Ambient is an E-Verify participant.