Product Engineer

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 extensions Start: ASAP Tech Stack: Node.js, React, APIs, Social/YouTube integrations, AdTech, Creator/UGC discovery About the Role We'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 Responsibilities Product 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 experiences API & 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 scale AdTech & 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 teams Backend & 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/CD Collaboration & 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 impact Required 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 collaboration Nice 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 platforms Why 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