Senior Support Engineer(Java+React)

Job Description
As a
Senior Support Engineer (Java + React)
, you will be responsible for ensuring the stability, performance, and continuous improvement of critical enterprise applications built on Java back-end services and React front-end interfaces. You will work closely with development teams, product owners, and infrastructure partners to troubleshoot complex issues, deliver high‑quality support, and contribute to application enhancements that drive business outcomes.

Your Impact

• Provide advanced technical support for Java-based backend services and React front-end applications.
• Troubleshoot production issues across the full stack, including APIs, UI components, integrations, databases, and cloud infrastructure.
• Monitor application performance, identify bottlenecks, and implement optimizations.
• Collaborate with engineering teams to drive root cause analysis (RCA) and implement long‑term fixes.
• Support application releases, patches, hotfixes, and environment maintenance activities.
• Maintain and improve system documentation, including technical runbooks, architectures, and support workflows.
• Ensure alignment with security, compliance, and governance requirements.
• Partner with business stakeholders to understand issues, replicate defects, and recommend improvements.
• Automate recurring support tasks to increase operational efficiency.
• Contribute to code reviews, minor bug fixes, and enhancements as needed.
• Stay informed on emerging technologies in Java, React, cloud services, and application management to bring best practices to the team.

Qualifications

• 5+ years of experience in application support, software engineering, or system analysis in an enterprise environment.
• Strong hands-on experience with: Java (Spring, Spring Boot, RESTful services) (Hooks, state management, component lifecycle)
• Proven experience troubleshooting full-stack applications in production environments.
• Proficiency with SQL, debugging tools, log analysis, and monitoring platforms (e.g., Splunk, Datadog, Grafana).
• Experience using incident management and ticketing tools (ServiceNow, Jira, etc.).
• Strong understanding of ITIL processes (Incident, Problem, Change Management) and experience applying ITIL best practices in day-to-day operations.
• Strong understanding of CI/CD pipelines and source control (Git, GitHub, Azure DevOps).
• Knowledge of cloud platforms (AWS, Azure, or GCP) and their impact on application performance and reliability.
• Experience with performance tuning, scalability analysis, and resolving complex production issues. Solid analytical thinking, problem-solving, and communication skills.
• Ability to work in a fast-paced environment managing multiple priorities

Set Yourself Apart With

• Experience in DevOps practices (pipelines, automation, containerization, Kubernetes).
• Knowledge of application security best practices, vulnerability remediation, and secure coding principles.
• Familiarity with microservices architectures and message queues (Kafka, RabbitMQ).
• Exposure to Agile methodologies and cross-functional engineering teams.
• Certifications in Java development, cloud platforms (AWS/Azure/GCP), or ITIL.

Additional Information

• An inclusive workplace that promotes diversity and collaboration.
• Access to ongoing learning and development opportunities.
• Competitive compensation and benefits package.
• Flexibility to support work-life balance.
• Comprehensive health benefits for you and your family.
• Generous paid leave and holidays.
• Wellness program and employee assistance.

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

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.