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Sr. Java Script / SDK Engineer

Sr. Java Script / SDK Engineer

ADPUSHUP SOFTWARE INDIA PRIVATE LIMITEDlucknow, uttar pradesh, in
14 days ago
Job description

JavaScript / SDK Engineer

About the Company :

AdPushup is an award-winning ad revenue optimization platform and a Google Certified Publishing Partner (GCPP), helping hundreds of web publishers grow their revenue using cutting-edge technology, premium demand partnerships, and proven ad ops expertise. Our team is a mix of engineers, marketers, product evangelists, and customer success specialists, united by a common goal of helping publishers succeed. We have a work culture that values expertise, ownership, and a collaborative spirit.

About This Role :

This is a Senior JavaScript Engineer role with expertise in Vanilla JS. This is an Individual Contributor (IC) role.

Unlike typical UI-focused frontend positions, this role centers around engineering our core JavaScript product - a high-performance script that runs on customer websites . You will work at the intersection of browser internals, web performance, and backend services, designing systems that handle billions of impressions per month.

Your Day-to-Day Responsibilities :

  • Own the design and development of our client-side JavaScript engine that optimizes ad delivery and layout in real-time
  • Collaborate closely with Product, Revenue, and Ad Ops teams to identify and build new revenue-driving features
  • Participate in LLD (Low-Level Design) and HLD (High-Level Design) discussions for frontend and backend initiatives
  • Perform code reviews and drive engineering best practices
  • Help troubleshoot and resolve production issues across browser and server environments
  • Mentor junior engineers and guide them on technical architecture and performance tuning
  • Contribute to improving our development processes, automation, and observability
  • Support project management efforts and ensure high-quality, timely delivery of initiatives

You Should Have :

  • 6 - 10 years of experience in frontend-focused product engineering, with strong contributions to production systems
  • Mastery of JavaScript , especially vanilla JS and modern browser APIs (closures, prototypal inheritance, DOM manipulation, event loop, async patterns)
  • Expertise in designing resilient, high-performance client-side code (not just UI components)
  • Experience with Node.js and Express.js, comfortable working on backend APIs when needed
  • Proficiency with TypeScript and modern ES6+ JavaScript practices
  • Deep understanding of web security , HTTP protocols, and cross-browser compatibility challenges
  • Solid knowledge of system design principles, including scalability and performance trade-offs
  • Familiarity with code versioning tools (Git / SVN) and modern CI / CD workflows
  • Bonus : Exposure to Java, Docker, ReactJS, SQL Server, or NoSQL databases
  • Why Should You Join AdPushup?

    At AdPushup, you’ll :

  • Work on technically challenging problems where your code runs directly on thousands of live websites, impacting real revenue
  • Be part of a fast-moving product company where engineering decisions matter and are felt immediately
  • Grow into a Staff Engineer role as you demonstrate ownership and technical leadership
  • Enjoy a culture that values transparency, autonomy, and learning
  • Collaborate with talented peers who appreciate clean, high-quality engineering
  • Get flexibility to work from home—we care about results, not just hours
  • Have access to catered lunches, plenty of snacks, and a supportive environment
  • Experience direct, honest communication across the company
  • Next Steps

    If you’re passionate about browser internals, JavaScript performance, and designing systems that scale , we’d love to hear from you. This is an opportunity to own the technical direction of our core product, while fast-tracking your career growth.

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    Sr Engineer • lucknow, uttar pradesh, in

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