Sr. Java Script SDK Engineer

Role Overview: As a Senior JavaScript Engineer at AdPushup, you will be responsible for engineering the core JavaScript product, focusing on a high-performance script that operates on customer websites. This role will involve working at the intersection of browser internals, web performance, and backend services to design systems that handle billions of impressions per month. Your expertise in Vanilla JS will be instrumental in optimizing ad delivery and layout in real-time. Key Responsibilities: - Own the design and development of the client-side JavaScript engine to optimize ad delivery and layout - Collaborate with Product, Revenue, and Ad Ops teams to identify and implement new revenue-driving features - Participate in LLD and HLD discussions for frontend and backend initiatives - Conduct code reviews, drive engineering best practices, and resolve production issues - Mentor junior engineers on technical architecture and performance tuning - Contribute to process improvements, automation, and observability - Support project management efforts for high-quality, timely delivery of initiatives Qualifications Required: - 6 to 10 years of experience in frontend-focused product engineering, with a focus on production systems - Proficiency in JavaScript, particularly vanilla JS and modern browser APIs - Expertise in designing resilient, high-performance client-side code - Experience with Node.js, Express.js, and TypeScript - Deep understanding of web security, HTTP protocols, and cross-browser compatibility - Knowledge of system design principles, scalability, and performance trade-offs - Familiarity with code versioning tools and CI/CD workflows Additional Details about AdPushup: AdPushup is an award-winning ad revenue optimization platform and a Google Certified Publishing Partner, dedicated to helping web publishers increase their revenue using innovative technology and ad ops expertise. The company values expertise, ownership, and collaboration, offering a work culture that encourages growth and success. Joining AdPushup means working on technically challenging problems, making impactful engineering decisions, and enjoying a supportive and transparent environment that values learning and autonomy.,