Product Engineer (Node.Js / React / AdTech) – Contract (6+ Months, Extension Likely)Location: Remote (EU Time Zones)Contract Length: 6 months – strong potential for long-term extensionsStart: ASAPTech Stack: Node.Js, React, APIs, Social/YouTube integrations, AdTech, Creator/UGC discoveryAbout the RoleWe’re looking for a highly experienced Product Engineer to help build a next-generation AdTech platform, supporting categories such as beauty, lifestyle, UGC, and topic-based recommendations for a Euro Retail and Marketing powerhouse.This contract role sits inside a fast-moving, cross-functional product team building internal tools and white-labelled solutions used across wider business units. You’ll be responsible for scoping, designing, and developing features end-to-end — from backend services to polished, user-friendly front-end experiences.This is a hands-on build role, perfect for an engineer with strong product instincts and experience delivering consumer-facing or AdTech-driven discovery systems.Key ResponsibilitiesProduct Engineering & Feature Ownership- Build and evolve a creator discovery solution end-to-end using Node.Js and React- Own product features from concept → prototype → implementation → iteration- Work closely with product managers, data teams, and internal partners to define requirements- Rapidly test, validate, and iterate on user workflows and ranking experiencesAPI & Platform Integrations- Integrate with social-platform APIs (e.G., YouTube Data API, Instagram, TikTok, Pinterest)- Develop services to ingest, enrich, and structure creator data (categories, topics, UGC signals, relevance scoring)- Optimise ingestion and discovery pipelines for performance and scaleAdTech & Recommendation Work- Build components that support advertising partners, sponsorship matching, and creator-brand fit- Implement logic for topic/category classification, recommendation ranking, and metadata structuring- Work on internal tools and white-label solutions used by cross-functional teamsBackend & Frontend Engineering- Build scalable backend services in Node.Js (REST, GraphQL, event-driven services)- Develop polished UIs in React, ensuring high usability and clarity for internal teams- Ensure strong code quality, automated testing, and reliable CI/CDCollaboration & Delivery- Partner closely with engineering leads, PMs, data scientists, and marketing/AdTech teams- Operate in a rapid, iterative environment with short feedback loops- Participate in architectural decisions and contribute to long-term platform direction- Support a healthy engineering culture focused on velocity, clarity, and product impactRequired Experience- 5+ years as a product-focused engineer- Strong hands-on experience with Node.Js and React- Experience integrating with social media APIs (YouTube essential;
Instagram/TikTok/Pinterest a plus)- Experience in AdTech, marketing tech, creator platforms, or discovery/recommendation systems- Experience building internal tools, dashboards, or white-label solutions- Strong product mindset — comfortable owning features, making trade-offs, and shipping iteratively- Ability to translate ambiguous ideas into clear technical plans- Strong communication, stakeholder alignment, and cross-functional collaborationNice to Have- Experience with video/content metadata (categories, beauty, topics, “lookalike” discovery)- Understanding of ranking, scoring, or classification models- Background with UGC/creator ecosystems (YouTube creators, UGC workflows, performance marketing)- Experience with event-driven microservices or data pipelines- GraphQL experience- Experience in high-scale consumer-facing platformsWhy This Role?- High-impact greenfield project- Central to the business’ advertising & creator strategy- Autonomy to shape the product and tech direction- Flexible remote contract with extensions very likely