Company description Publicis Sapient is a digital transformation partner helping established organizations get to their future, digitally enabled state, both in the way they work and the way they serve their customers. We help unlock value through a start-up mindset and modern methods, fusing strategy, consulting, and customer experience with agile engineering and problem-solving creativity. United by our core values and our purpose of helping people thrive in the brave pursuit of next, our 20,000+ people in 53 offices around the world combine experience across technology, data sciences, consulting, and customer obsession to accelerate our clients’ businesses through designing the products and services their customers truly value. Overview We are looking for a Senior Backend Engineer with strong Java expertise and a Site Reliability Engineering (SRE) mindset to own, maintain, and evolve critical production systems. This role combines hands-on backend development with deep responsibility for system reliability, performance, and operational excellence across customer-facing applications. You will work on legacy and modern Java systems, actively modernizing components while ensuring high availability and stability in production environments. Responsibilities Your Impact Design, develop, and maintain backend services using Java, Struts, and Hibernate/JPA. Refactor and modernize legacy Java modules to improve performance, scalability, and maintainability. Own production reliability by ensuring high availability, resilience, and fast recovery of critical systems. Troubleshoot complex production issues, perform root cause analysis, and implement long-term fixes. Define, track, and improve SLIs, SLOs, and error budgets for key services. Collaborate closely with QA, DevOps, and infrastructure teams to ensure safe, predictable releases. Drive improvements in observability, automation, and operational readiness. Backend Engineering (Java) Develop and enhance backend components using Core Java, J2EE, Struts (1.x/2.x), and Hibernate. Design and optimize SQL queries, ORM mappings, and data access layers. Apply best practices for code quality, performance tuning, and secure coding. Identify architectural and code-level bottlenecks and propose pragmatic improvements. SRE & Production Reliability Ensure stability, reliability, and performance of large-scale, customer-facing applications. Monitor application health using logs, metrics, traces, and alerts. Participate in on-call rotations, actively reducing incident frequency and MTTR. Lead or contribute to incident response, postmortems, and preventive actions. Improve system resilience through better capacity planning, alerting, and failure handling. Operational Excellence & Automation Automate repetitive operational tasks using scripts and tooling. Enhance CI/CD pipelines to support safer deployments and rollbacks. Improve logging, dashboards, and alerting rules to strengthen observability. Create and maintain runbooks, operational documentation, and knowledge bases. Qualifications Required Skills & Experience 5–8 years of experience in backend engineering and production support roles. Strong hands-on experience with: Java (Core Java, J2EE) Struts (1.x or 2.x) Hibernate / JPA Solid knowledge of relational databases (Oracle, MySQL, PostgreSQL). Proven experience supporting production systems with real on-call responsibility. Strong debugging, log analysis, and performance tuning skills. Experience with Linux/Unix environments and shell scripting. Familiarity with monitoring and observability tools (Splunk, ELK, Prometheus, Grafana). Experience working with CI/CD tools (Jenkins, GitLab CI, GitHub Actions). Preferred Qualifications Exposure to cloud platforms (AWS, Azure, or GCP). Experience with Docker and Kubernetes. Practical understanding of SRE concepts: SLIs, SLOs, error budgets, incident management. Experience modernizing legacy Java applications. Familiarity with messaging systems (Kafka, RabbitMQ) or caching (Redis, Memcached). Additional information As part of our dedication to an inclusive and diverse workforce, Publicis Sapient is committed to Equal Employment Opportunity without regard for race, color, national origin, ethnicity, gender, protected veteran status, disability, sexual orientation, gender identity, or religion. We are also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, you may contact us at hiring@publicis.sapient.com