Full-Stack Engineer (Founding Engineer) – Advertising x AI

Full-Stack Engineer (Founding Engineer) – Advertising x AI Full-Time | Remote or London We’re BARK.LONDON – Most Innovative Global Performance Marketing Agency of The Year 2025, working with the best ecommerce brands in the world. Now, we're building a new product to modernise the insights experience powering the growth of the world’s biggest brands. We’re looking for an exceptional full-stack engineer to join us full-time as the first dedicated engineer on the project. This is a rare opportunity to own the build of a real product, from MVP through scale, alongside a proven team of creatives, strategists, and data scientists. Who we’re looking for This role is for you if you: Build like a founder. You think in bets, ship fast, sweat the details, and are an exceptional individual contributor. Live and breathe the online AI and marketing scene – you’re experimenting with tools and models before they trend. Know how to create beautiful, intuitive-to-use web applications without bloated teams or endless roadmaps. Think in systems: front-end, back-end, APIs, hosting, auth, and analytics – you stitch it all together fast and clean. Care about performance, UX, and making things feel right. Can demonstrate excellence in previous work: side projects, MVPs, or anything you’ve built. That’s more valuable to us than resumes. What you’ll be working on A real product (not a prototype) that helps our agency continue to innovate and serve our ecommerce brands in a new way, directly helping them improve ROI. Modern features like: full LLM integration, dashboards, creative reporting, management, and asset generation. A modular, fast-to-deploy tech stack that supports rapid iteration. Direct collaboration with the founder and small team to define product, ship features, and talk to users weekly. Requirements Excellent communication skills. Full-stack excellence from frontend to backend, database, AI tooling, and deployment. A public body of work or side projects (GitHub, portfolio, X threads, indie apps, etc.) Deep curiosity and activity in AI tools, agents, automation, and LLM frameworks Comfortable shipping solo and owning end-to-end dev Bonus: experience building internal tools, marketing tech, or anything in ecommerce/ads What you get Salary: Competitive, based on experience Location freedom: Remote-friendly Impact: Build something real and used by real brands from day one Backing: We’re profitable, fast-growing, and work with top brands in the space To Apply Please send your GitHub and ideally x.com profile as part of your application - a resume alone will not be considered. This isn't just another job. This is for someone who wants to own the build of something defining. You already live in the AI x builder ecosystem, and you're looking for the right team, timing, and opportunity to make a dent. If that’s you – reach out with a short note, links to your work, and tell us what you're excited to build next.