Senior Web Developer

About Quantcast At Quantcast, we’re redefining what’s possible in digital advertising. As a global Demand Side Platform (DSP) powered by AI, we help marketers connect with the right audiences and deliver measurable results across the open web. Our foundation is built on cutting-edge measurement and consumer analytics, giving our clients the tools they need to drive success in an ever-evolving digital landscape.

The Role We are looking for a

Senior Web Developer (IC4)

to join our IT Enterprise Applications team. This is a high-impact, senior individual contributor role designed for a "technical athlete" who can move fluidly between complex code and operational architecture. You will own the performance, deployment, and data integrity of

quantcast.com . As an IC4, you aren't just executing tasks; you are architecting the bridge between Marketing’s vision and high-performance engineering. You will lead the transition toward a modern, headless approach, managing a stack that includes Builder.io (CMS), Google Tag Manager (GTM), and Salesforce. While your background may be in traditional web technologies, a key component of this role is the

proactive willingness and ability to learn how to deploy Salesforce Lightning Web Components (LWC)

to unify our front-end and CRM ecosystems.

What You’ll Do Architectural Ownership (40%):

Lead the technical strategy for our headless CMS (Builder.io) and GTM instrumentation. Define standards for custom HTML tags, complex triggers, and data layer governance to ensure high-fidelity marketing analytics. Custom Engineering & LWC (30%):

Develop modular, standalone ES6+ JavaScript. A critical focus will be the development and maintenance of

Salesforce Lightning Web Components (LWC)

(optional but a bonus) to create seamless data bridges between our web presence and Salesforce. DevOps & Automation (20%):

Own and optimize our CI/CD pipelines. You will design and maintain GitHub Actions workflows to automate testing and deployment, ensuring a "fail-safe" global shipping velocity. Strategic Stakeholder Leadership (10%):

Act as a technical consultant to Marketing and Engineering leadership. You will translate high-level business goals into scalable technical specifications and lead the "triage" of complex, cross-system issues.

Key Performance Indicators (KPIs) System Reliability:

Significant reduction in manual deployment errors through advanced automation. Architectural Flexibility:

Successful implementation of custom JS and LWC solutions that bypass standard "out-of-the-box" tool limitations. Data Accuracy:

Perfect synchronization between web interactions (GTM/DataLayer) and downstream Salesforce lead tracking. Execution Velocity:

Measured improvement in the time-to-market for global marketing initiatives.

Who You Are Education:

Bachelor’s Degree or higher in Computer Science, Information Technology, or a related field. Experience:

5+ years of professional web development experience

in a complex, global environment.

(We value expertise and demonstrated impact; if you have 4 years of extraordinary results, we still want to hear from you). Technical Mastery: Advanced JavaScript:

Expert-level ES6+ skills are mandatory. LWC Willingness:

You must have a strong desire to work within the Salesforce ecosystem. Whether you are already an LWC expert or a Senior JS Developer ready to master it,

willingness to own LWC development is key to this role. Headless & MarTech:

Proven experience with API-first CMS platforms (Builder.io preferred) and expert-level Google Tag Manager (GTM) management. Modern DevOps:

Practical experience writing YAML for GitHub Actions and managing automated deployment environments. The "Technical Athlete" Mindset:

You are comfortable debugging a tracking pixel one hour and architecting a global deployment workflow the next. Communication:

Exceptional ability to distill complex technical constraints into clear strategic options for non-technical stakeholders.

Preferred Skills & Certifications Google Analytics/GTM Professional Certification. Experience mentoring junior developers or establishing documentation standards for technical teams.