Senior Full-Stack Engineer

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Wunderkind

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Marketing • Advertising

Wunderkind is a global performance marketing solution powered by AI, data, and identity. It helps brands acquire and retain customers via owned channels at unprecedented scale, identifying significantly more website traffic without relying on cookies. By scaling one-to-one marketing messages through email, text messages, and ads, Wunderkind can drive up to 25% of a company's digital revenue. It is a top paid channel for many clients, regularly outperforming other paid retargeting channels like Google and Meta in scale and return on investment. With a focus on sustainable growth and efficiency, Wunderkind aids over 700 brands in achieving their digital revenue goals with innovative marketing strategies.

📋 Description

• Design, build, and maintain full stack product capabilities across backend services, APIs, frontend interfaces, and internal tools that support Wunderkind Advertising. • Implement supply-side product capabilities such as new placements, trigger logic, refresh behavior, and multi-campaign activation rules across onsite, in-app, and adjacent ad surfaces. • Build frontend and backend workflows that support advertiser and publisher use cases, including segmentation controls, placement configuration, campaign setup, and bulk-edit or operational tooling. • Contribute to demand-side integrations and optimization work, including SSP onboarding, OpenRTB request / response handling, auction logic, curation flows, and traffic-shaping or path-optimization capabilities. • Partner closely with product managers, designers, and engineers to translate roadmap items into clear technical designs, scoped milestones, and production-ready implementations. • Develop reporting and observability capabilities that improve visibility into bids, impressions, inventory, advertiser outcomes, and platform health. • Write clean, modular, testable code and uphold strong engineering standards through code reviews, documentation, and thoughtful system design. • Help shape architecture and delivery decisions around latency-sensitive systems, event-driven workflows, privacy-aware data handling, and operational reliability. • Support production readiness by contributing to monitoring, troubleshooting, incident response, and ongoing platform improvements.

🎯 Requirements

• 5+ years of professional software engineering experience, including substantial hands-on experience in both backend and frontend development. • Strong proficiency in at least one backend language such as Go, Java, or similar, with experience building production APIs, services, and integrations. • Strong proficiency in modern frontend development, ideally with React and TypeScript, including experience building product configuration or operational interfaces. • Experience designing and integrating with RESTful APIs, event-driven systems, and service-oriented architectures. • Ability to model and implement business logic for campaigns, placements, segmentation, reporting, or workflow configuration in a scalable and maintainable way. • Solid understanding of distributed systems fundamentals, production debugging, observability, and performance considerations. • Ability to reason about ad-tech concepts such as supply and demand flows, SSP integrations, OpenRTB, VAST, impression / click tracking, creative metadata, privacy signals, and latency-sensitive request paths. • Experience working with telemetry, analytics, or event streams to power reporting and operational visibility. • Comfort working across the full delivery lifecycle: discovery, technical design, implementation, testing, deployment, and post-launch support. • Strong problem-solving skills, attention to detail, and the judgment to make pragmatic trade-offs in ambiguous environments. • Ability to work independently and autonomously without requiring constant supervision. • Excellent communication and collaboration skills.