About Us: 

We're TripleLift, an advertising platform on a mission to elevate digital advertising through beautiful creative, quality publishers, actionable data and smart targeting. Through over 1 trillion monthly ad transactions, we help publishers and platforms monetize their businesses. Our technology is where the world's leading brands find audiences across online video, connected television, display and native ads. Brand and enterprise customers choose us because of our innovative solutions, premium formats, and supportive experts dedicated to maximizing their performance.

As part of the Vista Equity Partners portfolio, we are NMSDC certified, qualify for diverse spending goals and are committed to economic inclusion. Find out how TripleLift raises up the programmatic ecosystem at triplelift.com.

The Role: 

We are a dynamic and innovative company with a Java backend stack and a Next.js frontend stack. Our systems operate on a full internet scale, involving running real-time auctions and ad rendering. Our engineering team is committed to delivering high-quality products, and we are looking for a talented Senior Software Engineer to join our team. This role will involve collaborating with product and engineering teams based in NYC.

As a Senior Software Engineer, you will play a crucial role in the development and maintenance of our ad serving JavaScript that renders across a wide variety of publisher pages. You will be responsible for ensuring high performance and compatibility across numerous browsers and devices, handling the complexities of high-scale systems. This role requires an experienced developer who can deliver optimal solutions, troubleshoot and resolve cross-browser compatibility issues, and collaborate effectively with cross-functional teams.

Responsibilities:

• Develop and maintain ad serving JavaScript that renders on a diverse range of publisher pages, ensuring seamless integration and functionality.
• Ensure high performance and compatibility across various browsers and devices, managing the challenges of high-traffic environments.
• Collaborate with cross-functional teams to understand requirements, design robust solutions, and deliver high-quality code.
• Optimize ad serving performance, including load times and responsiveness, to maintain an excellent user experience on all types of publisher pages.
• Troubleshoot and resolve cross-browser compatibility issues, ensuring consistent performance and appearance across different platforms.
• Implement best practices for security, privacy, and performance in ad serving technologies.

Qualifications:

• Minimum of 5 years of professional experience in software development.
• Proven track record of developing high-performance, cross-browser compatible JavaScript applications without relying on frameworks.
• Experience with high-scale systems and managing performance in high-traffic environments.

Technical Skills:

• Expertise in vanilla JavaScript (ES5/ES6+).
• Strong understanding of DOM manipulation and event handling.
• Experience with asynchronous programming (e.g., Promises, async/await).
• Familiarity with browser internals and rendering engines.
• Knowledge of HTML5, CSS3, and web standards.
• Understanding of Web APIs (e.g., Fetch, XMLHttpRequest, Web Workers) and  client-side storage solutions (e.g., LocalStorage, IndexedDB).
• Proficient in using debugging tools and profilers (e.g., Chrome DevTools).
• Familiarity with Content Security Policy (CSP) and other security measures.
• Knowledge of ad-serving technologies (e.g., Google Ad Manager, Prebid.js) and IAB specifications (e.g. VPAID, SafeFrame) is a plus.

Problem-Solving Skills:

• Excellent debugging and problem-solving abilities.
• Experience with performance optimization and memory management in JavaScript.
• Ability to troubleshoot and resolve cross-browser compatibility issues.

Tools & Practices:

• Proficient with version control systems (e.g., Git).
• Familiarity with build tools and task runners (e.g., Webpack, Gulp) is a plus.
• Experience with automated testing frameworks and tools (e.g., Jest, Mocha).
• Understanding of Continuous Integration/Continuous Deployment (CI/CD) pipelines.
• Familiarity with code quality and linting tools (e.g., ESLint, Prettier).
• Experience with package managers (e.g., npm, Yarn).

Soft Skills:

• Ownership mindset and drive for achievement.
• Passion for continuous learning and automation.
• Excellent organization, attention to detail, and time management.
• Independent work ethic and adaptability to fast-paced environments.
• Strong problem-solving, critical thinking, and collaborative skills.
• Openness to feedback and growth mindset.

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