Software Engineer (JavaScript, Next.js, React)

Company And Culture

Created in 2002 by Marc Eckō, Complex is a leading global youth entertainment network showcasing the evolution of major pop culture categories, including streetwear and style, music, sneakers, and sports. Complex is a juggernaut in the content and culture space, delivering unprecedented global reach.

Complex is the world’s definitive cultural commerce, content, and experiential platform. We have created an all-new operating system built for the next generation, seamlessly integrating discovery, inspiration, community, and shopping. The company represents an expansion of the original vision with a deep understanding of convergence culture and its impact on contemporary society.

Whether through video, long-form editorial, or social content, Complex tells stories that engage dynamic conversation with our communities. Our internet-breaking cover stories document the heroes of culture and take them to the next level through product collaboration and shoppability.

Complex has become experts in creating immersive environments at our IRL experiences and cultural events. ComplexCon is our flagship festival bringing together the world’s most influential brands and artists for an unforgettable weekend of style, sneakers, art, design, food, music, inspiration and more. 

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Join us to help redefine the way people shop, while building a global marketplace that moves at the speed of culture. Complex is committed to building a high performing team that is passionate about what they do and the communities we serve.

Everyone at Complex truly believes in the company and its mission; it’s a requirement for working here. There is synergy within the teams that make Complex what it is, a well-oiled machine. Employees are at the forefront of the company's success because every one of us is given the opportunity to provide suggestions, feedback, and direction.

About The Role

• We’re seeking a Software Engineer to join our Custom & RevTech team to lead the development of custom advertising solutions and optimize our ad tech stack.
• In this role, you’ll build internal tools that help our ad operations and sales teams maximize revenue while ensuring an optimal user experience across our video and display inventory.
• You’ll work closely with product, ad ops, and sales teams to develop and implement revenue-generating solutions.

Who You Are:

• 5+ years of software engineering experience
• Strong proficiency in JavaScript, with a deep understanding of its core principles and minimal reliance on frameworks
• Expertise in Next.js and React, with a deep understanding of modern front-end development principles.
• Experience working in a media, publishing, or adtech environment.

What You Will Do

• Architect and implement custom advertising solutions that integrate with our content management system
• Build and optimize header bidding and ad delivery performance across digital properties and video players
• Develop internal tools and revenue analytics dashboards for ad operations and sales teams
• Lead technical integration of advertising vendors and partners while ensuring compliance with privacy regulations
• Implement and troubleshoot video advertising solutions (VAST/VPAID/SIMID) across platforms
• Create and maintain server-side and client-side ad integrations
• Monitor and improve ad performance metrics and viewability
• Build custom video ad formats and experiences
• Implement consent management and ensure compliance with privacy regulations

Preferred Skills

• Experience with Google Ad Manager (GAM) implementation, API integrations, and troubleshooting
• Proficiency in Google Analytics, Google Tag Manager (GTM), and data layer configurations
• Knowledge of ad-serving technologies, including header bidding and programmatic advertising
• Experience with video advertising standards (VAST, VPAID, SIMID) and video player API integrations
• Skilled in debugging tools (Grafana, Charles Proxy, browser dev tools)
• Understanding of privacy regulations (GDPR, CCPA) and consent management
• Proficiency in A/B testing, ad performance optimization, and brand safety solutions
• Experience with ad-blocking detection and mitigation
• Knowledge of web performance optimization, Core Web Vitals, and SEO impact on advertising
• Experience with IMA SDK and other video advertising SDKs
• Understanding of server-side ad insertion (SSAI)
• Hands-on experience with OTT/CTV advertising implementation

What We Offer

• Best in class health, dental, and vision insurance
• Healthcare FSA 
• Dependent Care FSA 
• Commuter Benefits FSA 
• Short-term/long-term disability and life insurance
• Paid Parental leave
• 401k with 4% match
• Pet Insurance
• Legal and Identity Theft Plans
• Vacation time and sick days

We're an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.

The above statements cover what are generally believed to be principal and essential functions of the job. Specific circumstances may allow or require some incumbents assigned to the job to perform a different combination of duties.

Complex participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S.