Senior Software Engineer

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Epsilon, a subsidiary of Publicis Groupe, is seeking a Senior Software Engineer with 7-10 years of experience to design, build, and scale backend systems using Java and Python in an Agile environment. The role emphasizes spec-driven AI-assisted development using tools like Cursor, Claude Code, and Kiro. Responsibilities include developing scalable backend services, applying AI-assisted coding practices, building RAG-based and Agentic AI workflows, leading system design discussions, ensuring code quality, collaborating cross-functionally, and resolving production issues. Requirements include a Bachelor’s or Master’s degree or equivalent experience, strong expertise in Java and Python, backend engineering experience with Java frameworks, experience with build tools and source control, data modeling skills, Unix/Linux proficiency, mandatory experience with AI-assisted development and AI coding tools, hands-on experience with RAG and Agentic AI systems, strong fundamentals in data structures, OOP, design patterns, system design, production backend experience, REST API and microservices knowledge, technical leadership, and Agile/Scrum experience. Preferred skills include frontend exposure (Angular), Databricks, Spark, cloud platforms (AWS, Azure, GCP), DevOps, CI/CD, Docker, Kubernetes, and observability. Benefits include flexible time off, paid holidays, parental leave, childcare assistance, health coverage, 401(k), tuition assistance, commuter benefits, professional development, and more. Salary range is $88,900 to $165,100 annually. Location: Irving, Texas, United States.