Front-End & AdTech Site Reliability Engineer (SRE)

A Haymarket Front-End & AdTech Site Reliability Engineer (SRE) is a specialized engineer who bridges the gap between high-performance client-side code and modern cloud infrastructure. In this role, you will own the reliability and performance of our user-facing Vue 3 applications, headless WordPress architectures, and complex AdStack, balancing programmatic monetization via Prebid.js against Core Web Vitals. In this hands-on role you will ensure our web ecosystem is fast, resilient, and optimized at the edge. Responsibilities: Lead development team initiatives to:

• Architect and maintain Cloudflare CDN capabilities (Cache Rules, WAF, Page Rules) to maximize cache-hit ratios.
• Build and deploy serverless solutions using Cloudflare Workers for edge routing and asset optimization.
• Own zero-downtime CI/CD pipelines (e.g., GitHub Actions, GitLab CI) for Vue 3 applications and WordPress.
• Manage GCP infrastructure (Cloud Run, GKE) to ensure scalability and cost-efficiency.
• Optimize client-side monetization architecture (Prebid.js) to minimize bundle size and auction latency.
• Implement OpenTelemetry (OTel) for end-to-end tracing and monitoring of core performance metrics (LCP, INP, CLS).
• Lead blameless post-mortems for performance degradations and outage incidents.

• Minimum of 3+ years, but ideally 6+ years of experience in SRE, DevOps, or Performance-focused Engineering.
• Proficiency in Vue 3 (Composition API) and build tools like Vite.
• Deep understanding of WordPress architecture and the WP REST API/GraphQL.
• Hands-on experience managing Cloudflare (including Workers for senior roles).
• Comfort with GCP (Cloud Run, Storage, GKE) and Terraform.
• Practical experience with Prebid.js and Google Ad Manager (GAM).
• Familiarity with OpenTelemetry for distributed tracing.
• Bachelor’s degree in a related field

Nice To Have Skills

• Experience with hybrid bidding strategies or Prebid Server migration.
• Advanced Linux system administration.
• Experience mentoring teams on performance culture.

Pulled from the full job description

• Tuition reimbursement
• 401(k)
• Health insurance
• 401(k) matching
• Vision insurance
• Dental insurance
• Life insurance, * A competitive compensation package
• The salary range for this position is $150,000 to $160,000. Compensation will be commensurate with experience, skill level, functional and/or industry knowledge, education level, certifications, as well as other qualifications.
• Paid annual vacation, holiday and sick time off
• Comprehensive health plans including medical, dental and vision
• Competitive 401(k) investment options and generous company matching program
• Life insurance
• Commuter benefits
• Employee referral awards
• Tuition reimbursement
• Training opportunities through industry-recognized programs
• A creative and passionate workplace and a fun, collaborative team environment
• Three Week “Work from Anywhere” benefit, to ensure work life balance

Haymarket has its heart and soul in publishing and media. Since the company was founded half a century ago, Haymarket has always prided itself on being a highly creative business, with an unrelenting focus on the quality of the products and the people. The philosophy has always been quite simple: only by having the highest quality individuals can you produce the highest quality products, combining the best in content, design, production and customer services. Globalization is opening up the world further and provides many opportunities for growth. Haymarket has offices around the world and many of the titles are now truly global brands. Haymarket serves a broad spread of business markets, from marketing to medicine to technology along with exhibitions and live events. Predicting the shape of the business in 3, 5, or 10 years is almost impossible; and the unpredictability is part of the appeal. Haymarket aims to be the perfect company to work with or for - we have the processes and attitude that ensure quality and consistency, and an entrepreneurial spirit that makes every day rewarding. As a Certified B Corporation, we’re proud to be part of a community of companies working together for change, and taking part in collective action to advocate for a shared goal of a global economy that benefits people and the planet. An equal opportunity employer, Haymarket Media does not discriminate in hiring or terms and conditions of employment because of an individual’s race, color, religion, gender, gender identity, national origin, citizenship, age, disability, sexual orientation, marital status, or any other protected category recognized by state, federal, or local laws. Beware of fraudulent activity where individuals are contacting job seekers claiming to represent Haymarket Media. Please note that only emails from @haymarketmedia.com are legitimate. When applying for roles with Haymarket Media, you will receive an email directly from a member of the Talent Acquisition team or communication through Linkedin.