Job Specifications
Overview
How You'll Make an Impact
Epsilon is building the next generation Retail Media Network (RMN) platform to power onsite advertising at scale, using services from our industry-leading platform that already serves billions of offsite ads across the open web. Our vision is a unified platform for both onsite and offsite ads, delivering low-latency, high-throughput performance across the board. We're looking for a Senior Software Engineer to join our Core Platform Engineering team, someone with a self-starter mindset who thrives with minimal direction, can quickly grasp business and technical goals, and takes ownership from concept through delivery. This is a high-impact role where you'll shape the architecture, optimize performance, and ensure our systems are built for scale, reliability, and innovation.You'll 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.
What You'll Achieve
Design, implement, and maintain high-performance, low-latency services for advertising.
Collaborate with product, platform, and operations teams to integrate new capabilities into the platform.
Optimize system performance, fix production issues, and eliminate bottlenecks across the stack.
Contribute to frontend integrations (SPAs, dashboards, tools) when needed, ensuring seamless workflows for internal and external users.
Partner with data engineering teams to design and integrate event tracking, analytics, and reporting pipelines.
Champion code quality, testing standard processes, and CI/CD automation.
Deliver critically important enhancements enabling fast, accurate, and scalable ad delivery.
Build robust, future-proof services and interfaces that empower rapid feature development.
Improve system observability, monitoring, and fault tolerance.
Who You Are
What You'll Bring with you :
Bachelor's degree in Computer Science or related field (or equivalent experience).
6+ years of experience in backend and/or full stack software development.
Strong backend expertise in Java, with experience in high-performance, distributed systems.
Experience with streaming platforms (e.g., Kafka, Kinesis, Pulsar).
Proficiency with relational databases (SQL) and NoSQL data stores.
Understanding of low-latency, high-throughput architectures and clean software design principles.
Experience building SPAs with TypeScript and modern frameworks (Angular, React, or similar).
Why you might stand out from other talent :
Master's degree or 10+ years software engineering experience.
Experience in ad tech, especially ad serving, RTB, or programmatic platforms.
Familiarity with cloud-native environments (AWS, Kubernetes, Docker).
Experience with large-scale event tracking, data pipelines.
Click here to view how Epsilon transforms marketing with 1 View, 1 Vision, 1 Voice.
Base Salary: $80,250 - $133,750
Actual compensation within the range will be dependent upon, but not limited to the individual's skills, experience, qualifications, location and application employment laws. The salary pay range is subject to change and may be modified at any time.
Additional Information
When You Join Us, We'll Create Something EPIC Together
Epsilon is a global data, technology and services company that powers the marketing and advertising ecosystem. For decades, we've provided marketers from the world's leading brands the data, technology and services they need to engage consumers with 1 View, 1 Vision and 1 Voice. 1 View of their universe of potential buyers. 1 Vision for engaging each individual. And 1 Voice to harmonize engagement across paid, owned and earned channels.
Epsilon's comprehensive portfolio of capabilities across our suite of digital media, messaging and loyalty solutions bridge the divide between marketing and advertising technology. We process 400+ billion consumer actions each day using advanced AI and hold many patents of proprietary technology, including real-time modeling languages and consumer privacy advancements. Thanks to the work of every employee, Epsilon has been consistently recognized as industry-leading by Forrester, Adweek and the MRC. Epsilon is a global company with more than 9,000 employees around the world.
Epsilon Has a Core Set Of 5 Values That Define Our Culture And Guide Us To Create Value For Our Clients, Our People And Consumers. We Are Seeking Candidates That Align With Our Company Values, Demonstrate Them And Make Them Meaningful In Their Day-to-day Work
Act with integrity. We are transparent and have the courage to do the right thing.
Work together to win together. We believe collaboration is the catalyst that unlocks our full potential.
Innovate with purpose. We shape the market with big ideas that drive big outcomes.
Respect all voices. We embrace differences a
About the Company
Epsilon is a global data, technology and services company that powers the marketing and advertising ecosystem.
The world’s leading brands use Epsilon to harmonize consumer engagement across their paid, owned and earned channels, leveraging capabilities that include data, identity resolution, customer data platforms, clean rooms, digital media, retail media, site personalization, direct mail, loyalty, email marketing and measurement.
By applying artificial intelligence against privacy-centric consumer recognition–embedded...
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