Lead Developer (Backend)

Overview

Epsilon is building the next-generation Retail Media Network (RMN) platform to power onsite advertising at scale, leveraging our industry-leading ad tech platform that already delivers billions of offsite ads across the open web. Our vision is a unified platform that seamlessly supports both onsite and offsite advertising with low latency, high throughput, and high reliability.

How Youll Make An Impact

• Lead the design and development of high-performance, distributed backend services for ad delivery and optimization.
• Collaborate with product, platform, and operations teams to integrate new capabilities into the platform.
• Improve system performance, fix production issues, and eradicate bottlenecks across the stack.
• Partner with DevOps / SRE to evolve CI / CD, monitoring, and performance tuning.
• Contribute to frontend integrations (SPAs, dashboards, tools) when needed, ensuring seamless workflows for internal and external users.
• Mentor and guide other engineers through design reviews, code reviews, and technical planning.

What Youll Achieve

Who You Are

Nice to Have

Why Join Us

Youll be at the forefront of building a next?generation advertising platform that combines the speed and sophistication of programmatic ad serving with the personalization and commerce power of retail media. Your work will directly shape how millions of users experience advertising across top retailers and brands.

Base Salary

$98,000 - $182,000

Benefits

Equal Opportunity Employer

Epsilon is an Equal Opportunity Employer. Epsilons policy is not to discriminate against any applicant or employee based on actual or perceived race, age, sex or gender (including pregnancy), marital status, national origin, ancestry, citizenship status, mental or physical disability, religion, creed, color, sexual orientation, gender identity or expression (including transgender status), veteran status, genetic information, or any other characteristic protected by applicable federal, state or local law. Epsilon also prohibits harassment of applicants and employees based on any of these protected categories. Epsilon will provide accommodations to applicants needing accommodations to complete the application process. Please reach out to LeaveofAbsence@epsilon.com to request an accommodation.

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