Senior Fullstack Engineer (FE-focused) — Monetisation Team (f/m/d)

About UsPet Media Group (PMG) is a scale-up that acquires, launches, and develops market-leading pet marketplaces globally, with over 1.5 million animals finding new homes through our platforms every year. We currently operate in 6 countries (UK, Sweden, Netherlands, Italy, Spain, and most recently the US) — all within just 5 years of launching. Here's one of our apps: Pets4Homes.co.ukThe way pets find new loving homes has remained largely unchanged for centuries. We're on a mission to change that through innovative technology — and increasingly, through the intelligent use of AI. We're a young and ambitious team who have built unicorns before (e.g. Avito), backed by some of Europe's leading investors (e.g. Verdane and Otiva — early backers of Klarna, CAIA, Apotea, and Easypark).Who are we looking for?We're expanding our Monetisation team and looking for an FE-focused full stack engineer to help us build great products in the payment processing & value-added services space, and improve the user experience in the payment domain.We're not just looking for a strong engineer — we're looking for someone who actively uses AI tools as part of their daily workflow: whether that's using LLMs to accelerate development, exploring AI-powered tooling for testing, code review, or product ideation, or simply staying genuinely curious about where the technology is heading.We expect roughly 6 years of engineering experience, ideally with our current tech stack — and a mindset that sees AI as a multiplier, not a buzzword.RequirementsWe're a fast-growing scale-up. We want engineers who build fast, fail fast, and learn fast. You don't need to be a world-class expert in every tool we use — but you do need a critical, open mindset, strong JavaScript proficiency, and a genuine enthusiasm for AI-assisted development.Core (required):Building apps with TypeScript, Next.js, Node.js & ReactUnderstanding of GraphQL and its usage in large systems with multiple consumersExperience with frontend testing tools and testing strategiesExperience with relational databases like PostgreSQLActive use of AI tools (e.g. Claude, Cursor, Codex, ...) in your day-to-day engineering work — we want to hear how you use themBonus (helpful & appreciated):Experience with payment processing (Stripe, Adyen, Braintree)Experience with search technologies like ElasticsearchExperience with monitoring & observability tools like GrafanaExperience with responsive design & mobile web UXExperience with UI/component frameworks like TailwindExperience evaluating or experimenting with AI coding workflows at team or company levelWorking proficiency in English is required.Our tech stackNext.js, React, Node.js & React Native (TypeScript throughout) GitLab CI/CD Elasticsearch Redis GraphQL & PostgreSQL Knex Docker Serverless with AWS Lambda AWS Grafana BitriseWhat we offerJoin a rapidly growing, already-profitable business with a clear vision and genuine energyA diverse team across Sweden, Germany, Austria, UK, Poland, Portugal, Bosnia, Croatia, Ukraine and EgyptA real opportunity to shape our tech department — and to help define how AI becomes part of how we buildCompetitive compensation and great benefits (remote or in-person) We very much look forward to your application, contact us if you have any questions!