Experienced Full Stack Engineer

Required Experienced Full Stack Engineer
As a Fullstack Engineer on the Demand R&D team in our Tel Aviv office, youll play a vital role in building our flagship recommendation products, from the backend services that decide which recommendations to serve to the ad formats and widgets that render them on publisher pages for billions of users.
Youll build features end-to-end across the stack, develop innovative ad formats and high-scale backend services, and use big data and performance metrics to make engineering decisions that impact users, publishers, advertisers, and business performance.
How youll make an impact:
Build features end-to-end: design and develop backend services alongside the client-side code that consumes them, and own them through testing, deployment, monitoring and maintenance
Work on our recommendations ad formats serving and user experience - the backbone of the companys products, standing at the intersection of end-users, publishers and advertisers
Develop and maintain a variety of new & innovative ad formats that reach billions of users and are used by thousands of advertisers (carousel, app install, video ads and many more)
Develop high-scale backend services that serve billions of requests a day, with real emphasis on performance, resilience and observability
Make professional decisions based on big data and performance metrics of billions of users, while putting emphasis on business & page performance KPIs
Build AI agents, skills and workflows that multiply the teams capabilities - automated code reviews, data analysis, production anomaly investigation, feature validation and debugging
Collaborate with the Product, Data and UX teams throughout the company to iterate on the design and implementation of our product
Our tech stack
AI: Claude Code, Codex, Cursor
Backend: Java, Spring, Kafka, MySQL, Cassandra, BigQuery, Kubernetes, Docker, Grafana
Frontend: JavaScript, TypeScript, React, HTML, CSS, Jest, Playwright.