Senior Backend Developer

Join Us as We Power Live Video Data for AI Atmosfy is the world’s largest live video video map, that's scaling across 150 countries. 100M+ video-mapped locations, continuously updated across 20,000+ cities. This data is already flowing into systems like ChatGPT and Google Gemini, powering a new generation of real-world answers. Check our our partnership launch with OpenAI and how we build with the best at the Atmosfy Advisory Network. What We’Ve Built: Most AI models are trained on a snapshot of the internet. AI needs a live understanding of the physical world. Not just to answer questions, but to recommend, act, and make decisions in real time. Here’s what Atmosfy Atlas Powers. AI agents need live data to act. When an AI knows what’s actually happening, it can move from answering to transacting. “Book the hotel with the best pool scene right now.” “Find the busiest bar nearby and get us in.” Brands need live data to understand demand. If you can see how places look, how busy they are, and how that changes over time, you have a real-time demand signal. AI systems need live data to make real-world decisions. Routing, pricing, staffing, demand allocation. When systems understand what’s happening right now, they can continuously adapt. Atmosfy has build that layer: Every user video becomes structured, location-based data that can be accessed by AI systems to answer real-world questions with live context. Today, Atmosfy powers: 500M+ discovered experiences100M+ video-mapped locations20,000+ cities across 150 countriesTop 100 App Store in 40+ countries, 4.8★ rating across 35K+ reviews Atmosfy Atlas Atmosfy Atlas is the interface for models and platforms to access this data layer. It enables partners to integrate live, location-based video directly into AI systems, search, booking flows, and downstream applications. Atlas is already being used by partners including Expedia, Capital One, SeatGeek, GetYourGuide, Funko, Resy, and Tock. We're backed by Redpoint, Capital One, Industry, Streamlined, Plug & Play, Suntory, DNX, and Global Superstar Kygo. About the Role We're looking for a senior backend engineer to help build the next generation of Atmosfy's consumer platform. You'll work directly with the founder and engineering team to design, build, and ship the systems powering experiences used by millions of travelers and creators around the world. What you'll own: Design, build, and scale backend services in Node.js and PHP that power our iOS, Android, and web platformsOwn core APIs end-to-end — from schema design and implementation through monitoring, performance, and iteration in productionBuild and operate the data and media pipelines behind the world's largest live video map — ingestion, processing, storage, and delivery at global scaleHelp shape new AI-powered consumer experiences from concept to launch, integrating LLMs and ML services into production systemsInstrument what you ship — define the metrics that prove a system works, watch them, and act when they moveImprove reliability, observability, and performance across our infrastructure as we scaleCollaborate closely with frontend engineering to design clean, stable contracts between client and server Key Responsibilities Develop, test, and maintain robust and scalable applications.Write clean, efficient, and well-documented code.Collaborate with front-end developers to integrate user-facing elements with server-side logic.Design and optimize database structures for performance and scalability.Troubleshoot, debug, and resolve software defects and performance issues.Implement security best practices to protect applications from vulnerabilities.Participate in code reviews to ensure code quality and adherence to company standards.Stay up to date with emerging trends, tools, and technologies in PHP development.Contribute to system architecture discussions and technical decision-making. Requirements Proven Experience: 5+ years of professional backend experience with deep expertise in Node.js and PHP (we run both in production — you should be strong in at least one and comfortable working across the two)Node.js Ecosystem: Expertise building production services with Node.js/TypeScript — Express, NestJS, or similar frameworksPHP Frameworks: Experience with Laravel, Symfony, CodeIgniter, or similarDatabase Knowledge: Strong experience with relational databases such as MySQL or PostgreSQL, including schema design and query performance at scaleAPI Development: Proven experience designing, building, and operating RESTful APIs consumed by production mobile and web clientsAI-Native Workflow: You use AI tools (Claude Code, Cursor, or similar) as a core part of how you build, not an occasional assistantVersion Control: Proficiency with Git and collaborative development workflowsFront-End Basics: Working understanding of HTML, CSS, and JavaScript — enough to design clean contracts with frontend engineersProblem-Solving: Strong analytical skills and a bias toward owning problems end-to-end, including after they shipTeam Collaboration: Ability to work effectively in a small, fast-paced team where scope is broad and direction is sometimes ambiguous What You'll Get Competitive salary and meaningful equity in one of the fastest-growing consumer AI companies.Competitive benefits: Full medical, dental, vision benefits from best in class coverage.Build products used across 150+ countries, with the opportunity to see your work reach millions of users worldwide.Help power the future of AI. Atmosfy's technology is used by leading AI platforms including ChatGPT, Gemini, and Google, helping foundation models better understand the physical world.Build alongside category-defining partners including Capital One, Expedia, SeatGeek, Virgin Hotels, GetYourGuide, Funko, and more.Work directly with the Founder & CEO on product strategy, architecture, and the roadmapLearn from an exceptional network of leaders. Work alongside Atmosfy's 40+ member Advisory Board, including senior executives from many of the world's leading technology, travel, media, and consumer companies. Atmosfy is proud to be an Equal Opportunity Employer. We are committed to building a diverse and inclusive workplace and welcome applicants of all backgrounds, experiences, and perspectives. We consider all qualified candidates without regard to race, color, religion, sex, gender identity or expression, sexual orientation, national origin, ancestry, age, disability, veteran status, genetic information, or any other characteristic protected by applicable law. We believe great ideas come from diverse teams and are dedicated to creating an environment where everyone can do their best work.