Senior Software Engineer

Overview

How You’ll Make an Impact

We are seeking an experienced Senior Full Stack Engineer to join our Product Engineering team. This role will work on a team of engineers in all aspects of the software development lifecycle. This person will contribute significantly to both front-end and backend development, maintaining alignment to our quality processes, contributing to component development, and collaborating with the rest of the team for cross-team functionality.

Responsibilities

Additional responsibilities include but are not limited to:

• Contribute to the implementation and maintenance of our platform code and components, spanning both frontend and backend.
• Collaborate with platform, operations, and engineering teams across the organization.
• Ensure features are well-tested, contributing to our continuous integration environment.
• Diagnose performance bottlenecks and solve critical production issues across the entire stack.
• Collaborate in designing solutions using both backend and frontend technologies.

What You’ll Achieve

• Deliver high-performance, low-latency software solutions for our platform.
• Enhance the platform with new technologies and techniques in both frontend and backend areas.
• Ensure robust testing and integration to maintain software quality.
• Identify and solve critical issues to maintain platform performance.

Qualifications

Who You Are:

• What you’ll bring with you:
• Bachelor’s degree in Computer Science or a related field, or equivalent experience, with 5+ years in full stack software development.
• Knowledge of high-performance software and clean architecture principles.
• Experience with Single Page Applications (SPAs) using TypeScript and Angular or other modern frameworks/technologies.
• Strong expertise in backend development with Python or similar languages.
• Experience working on low-latency, high-throughput systems.
• Familiarity with public cloud providers and technologies like AWS, Azure, Kubernetes, and Docker.
• Clear and honest communication are key to success in this role.
• Why you might stand out from other talent:
• Master’s Degree in Computer Science or a related field
• Exposure to working in the Ad Tech industry.
• Experience launching tech products across multiple sectors.
• Comfortable using tech platforms such as Salesforce, Eloqua, Asana, or similar.
• Familiarity with performance metrics and KPIs to assess GTM success.
  

Click here to view how Epsilon transforms marketing with 1 View, 1 Vision, 1 Voice.

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.

Our pillars aren't just words. They're how we show up every day.

• People centricity: We focus on employee well-being in an environment where colleagues truly care about each other.
• Collaboration: We work together, support one another, and collectively achieve goals.
• Growth: There are endless opportunities for growth through learning, development and career advancement.
• Innovation: We drive progress through cutting-edge solutions and forward-thinking approaches.
• Flexibility: We’ve created a balance between work and personal life, and we encourage adaptability to solve problems creatively.

Our values guide us to create value for our clients, our people and consumers.

• Act with integrity
• Work together to win together
• Innovate with purpose
• Respect all voices
• Empower with accountability

These pillars and values are our foundation—shaping our culture, guiding our decisions, and uniting us in common purpose.

Because You Matter

Benefits

As an Epsilon employee, you deserve perks and benefits that put you, your family and your finances first. Our benefits encompass a wide range of offerings, including but not limited to the following:

• Time to Recharge: Flexible time off (FTO), 15 paid holidays
• Time to Recover: Paid sick time
• Family Well-Being: Parental/new child leave, childcare & elder care assistance, adoption assistance
• Extra Perks: Comprehensive health coverage, 401(k), tuition assistance, commuter benefits, professional development, employee recognition, charitable donation matching, health coaching and counseling

Epsilon benefits are subject to eligibility requirements and other terms.

Epsilon is an Equal Opportunity Employer. Epsilon’s 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 [email protected] to request an accommodation.

For San Francisco Bay and Los Angeles Areas: Epsilon will consider for employment qualified applicants with criminal histories in a manner consistent with the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance and San Francisco Police Code Sections 4901-4919, commonly referred to as the San Francisco Fair Chance Ordinance. Applicants with criminal histories are welcome to apply.

#Epsilon

Compensation Range: USD $88,900.00 - USD $165,100.00/Annually. This is the pay range the Company believes it will pay for this position at the time of this posting. Consistent with applicable law, compensation will be determined based on the skills, qualifications, and experience of the applicant along with the requirements of the position, and the Company reserves the right to modify this pay range at any time. Temporary roles may be eligible to participate in our freelancer/temporary employee medical plan through a third-party benefits administration system once certain criteria have been met. Temporary roles may also qualify for participation in our 401(k) plan after eligibility criteria have been met. For regular roles, the Company will offer medical coverage, dental, vision, disability, 401k, and paid time off. The Company anticipates the application deadline for this job posting will be 5/27/2026.