Senior Software Engineer

Company Description See how Epsilon powers connected marketing by unlocking the full potential of data and identity. Overview Join a team of passionate engineers building the next generation of a high-performing digital marketing platform! As a Senior Software Engineer, you'll play a key role in designing, developing, and automating the release process of our software applications. This is a fantastic opportunity to leverage your expertise in Java, Agile methodologies, and DevOps practices to drive innovation and deliver exceptional user experiences. 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. Responsibilities 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. Qualifications What you’ll bring with you: 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 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 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 LeaveofAbsence@epsilon.com 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. #LI-NK1 Compensation Range: USD $102,700.00 - USD $189,800.00/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 11/9/2026.