Software Engineer

Software Engineer

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JOB_DESCRIPTION.SHARE.HTML

• Engineering
• Westminster, Colorado
• Epsilon
• Entry
• Hybrid
• 10/14/2026
• 169772

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Job Description

Company Description

See how Epsilon powers connected marketing by unlocking the full potential of data and identity.

Epsilon is the leader in outcome-based marketing. We enable marketing that’s built on proof, not promises. Through Epsilon PeopleCloud, the marketing platform for personalizing consumer journeys with performance transparency, Epsilon helps marketers anticipate, activate and prove measurable business outcomes. Powered by CORE ID®, the most accurate and stable identity management platform representing 200+ million people, Epsilon’s award-winning data and technology is rooted in privacy by design and underpinned by powerful AI. With more than 50 years of experience in personalization and performance working with the world’s top brands, agencies and publishers, Epsilon is a trusted partner leading CRM, digital media, loyalty and email programs. Positioned at the core of Publicis Groupe, Epsilon is a global company with over 9,000 employees in over 40 offices around the world.

How You’ll Make an Impact

At Epsilon, we do more than collect and store data. We help some of the world’s biggest brands discover real opportunities inside the data types, delimiters and decimals.

We’re looking for an experienced Software Engineer to help us build innovative and secure data solutions for social media, search, and digital ads within a Big Data environment. In this role, you will use best-in-class engineering approaches and secure data management practices to help process terabytes of data each week, while solving difficult problems using predictive analytics and cutting-edge technologies. Join us and do some truly astounding things.

Better yet, we’re growing fast, which means you can too. From learning new technologies to collaborating with some of the brightest—and kindest—people in the world, there’s a lot to love about a career with us. Join a team where you’re empowered to do epic things and unleash your full potential.

What You’ll Achieve

• Build and maintain complex data solutions for high-volume applications, including new systems.
• Create reusable output and processes as you implement each solution.
• Ensure test coverage in support of our continuous integration environment and to drive code quality.
• Use agile and DevOps methodologies to help drive continuous improvement.
• What is our technology stack? Java, Spring, Hibernate, Scala, Spark, Hadoop, Git, HBase, Unix, Docker, Maven, Ansible, Postgres and migration to AWS is expected down the road. Experience with all is not required, with required experience being detailed in sections below.

Who You Are

What you’ll bring with you:

• B.S. in Computer Science, Computer Engineering, or a similarly related field.
• Strong development practices with prior experience writing and testing code.
• At least two or three years of experience using Java to build applications.
• Hands on experience working in a Unix environment is a must, including writing Unix Shell Scripts.
• Professional exposure with Spring framework, Hibernate, Maven and Git is required.
• Experience with SQL and relational database environments is required.
• Owns a problem to the end, but also proud to share in team’s success.
• Able to do your best work in a team setting and autonomously
• Wants to grow a career with a great company.

Why you might stand out from other talent:

• Experience with Hadoop, Spark, and Scala is a plus.
• Experience with Docker and Kubernetes is a plus.
• Experience with AWS is a plus
• Experience with data modeling, data warehousing, and building ETL pipelines is a plus
• Knowledge of software engineering best practices across the development lifecycle, including agile methodologies, coding standards, code reviews, source management, build processes, testing, and operations is a plus.
• Familiarity with Angular framework, HTML and JavaScript is a plus.

Additional Information

When you join Epsilon, we’ll create something EPIC together. We’re a global leader in data and identity, with deep expertise in digital media, clean rooms, customer data platforms, loyalty and marketing services. Positioned at the center of Publicis Groupe, Epsilon helps brands deliver personalized experiences at scale and build lasting customer relationships by unlocking the full potential of data and identity. Epsilon operates in 30+ countries across EMEA, the Americas and APAC, with more than 8,000 employees.

Check out a few of these resources to learn more about what makes Epsilon so EPIC:

Our Culture: https://www.epsilon.com/us/about-us/our-culture-epsilon

Life at Epsilon: https://www.epsilon.com/us/about-us/epic-blog

Epsilon has five values that define our culture and guide us as we create value for our clients, our people and consumers. We seek candidates who 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 and foster a culture of connection and belonging.
• Empower with accountability. We trust each other to own and deliver on common goals.

Because You Matter

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:

• Time to recharge: Flexible time off (FTO), 14 paid holidays, paid sick time
• Family well-being: Parental/new child leave, childcare & elder care assistance, adoption assistance
• Extra perks: Compreh