Senior Software Engineer

This role will report to the Engineering Manager and collaborate closely with product engineers, product managers and solution architects, participating in design reviews and code reviews., * Be at the forefront of innovation: Contribute to the development of a cutting-edge digital marketing platform, utilizing the latest technologies like AWS, Micronaut Framework, and potentially even exciting new tools like Databricks.

• Make a real difference: Your work will directly impact millions of users and contribute to the success of our platform.
• Grow your skills: Gain valuable experience in managing production support and release processes, deepening your knowledge of DevOps and cloud technologies.
• Live our values: Join a company that prioritizes Trust, Innovation, and Excellence, fostering a collaborative and rewarding work environment.
• Accelerate your career: This role offers a clear path for growth within the engineering organization, with opportunities to take on increasing responsibility and leadership.
• Become a well-rounded engineer: Develop a diverse skillset encompassing software design, development, automation, deployment, and production support.

• Bachelor’s degree in computer science or a related field and 5+ years of professional software development experience
• Strong Java skills and object-oriented programming experience
• Experience with Agile methodologies
• Experience with production support and release management
• Familiarity with AWS or other cloud platforms
• Experience with AWS serverless applications development
• Experience with Micronaut or Spring Frameworks
• Experience with Apache Spark
• Knowledge of DevOps tools like Jenkins and GoCD
• Exposure to infrastructure automation tools like Terraform
• Familiarity with AI-assisted development tools such as Cursor, GitHub Copilot, or Claude - using them to accelerate coding, code review, debugging, and documentation
• Working knowledge of LLM/AI integration patterns - prompt engineering, tool/function calling, RAG (retrieval-augmented generation), or building agentic workflows using frameworks such as LangChain, LangGraph, Spring AI, or AWS Bedrock
• Experience or interest in responsible AI practices - understanding model limitations, hallucination risks, and applying human-in-the-loop review patterns in production systems

Why you might stand out from other talent:

• Experience with UI technologies like Angular
• Experience with GCP or Azure
• Experience with Scala & Databricks
• Experience with Docker, or Kubernetes
• Hands-on experience building or shipping AI-powered features (chatbots, intelligent search, classification, summarization, or recommendation systems)
• Experience with AWS Bedrock, OpenAI, Anthropic Claude, or Vertex AI APIs
• Familiarity with vector databases (Pinecone, pgvector, OpenSearch) for semantic search or RAG pipelines
• Experience evaluating and fine-tuning LLM outputs for accuracy, safety, and cost efficiency

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: 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., 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. 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 7/28/2026.

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.