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