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