Senior Site Reliability & Performance Engineer

DXC Technology is a leading enterprise technology and innovation partner delivering software, services, and solutions to global enterprises and public sector organizations — helping them harness AI to drive outcomes at a time of exponential change with speed. With deep expertise in Managed Infrastructure Services, Application Modernization, and Industry-Specific Software Solutions, DXC modernizes, secures, and operates some of the world's most complex technology estates.

DXC's Insurance Software and BPS (ISB) helps insurers around the world modernize and run their core operations at scale by combining deep industry expertise, proven software platforms, and innovative AI-driven solutions. A global market leader in core insurance platforms, ISB delivers solutions across policy administration, claims, billing, analytics, and digital engagement supporting Life & Annuity, Property & Casualty, and Specialty insurance markets. You’ll directly shape how the world's leading insurers operate by helping to transform the policy, underwriting, and claims systems that millions of people rely on every day.

About The Role

DXC Technology is seeking a Senior Site Reliability & Performance Engineer to improve the reliability, availability, scalability, and performance of complex enterprise applications across modern cloud and legacy environments.

This is a senior, hands-on technical role focused on application reliability, performance engineering, observability, production troubleshooting, and incident response . The ideal candidate has broad experience supporting enterprise applications and cloud environments and can troubleshoot complex issues across application, infrastructure, database, network, and integration layers.

The successful candidate will work closely with engineering, architecture, infrastructure, operations, and customer-facing teams to identify root causes, resolve critical production issues, and implement long-term improvements.

What You´ll Do

• Lead troubleshooting and resolution of complex production reliability and performance issues.
• Analyze applications end-to-end to identify bottlenecks, failures, latency, and scalability issues.
• Drive improvements in reliability through SLIs/SLOs, monitoring, automation, runbooks, and incident reduction initiatives .
• Use metrics, logs, traces, and observability platforms to identify root causes and validate fixes.
• Perform and guide performance profiling, load/stress testing, capacity planning, CPU/memory analysis, database/query tuning, and latency analysis .
• Support enterprise applications across technologies such as Java, .NET, web/UI technologies, and legacy platforms .
• Work across cloud environments such as AWS, Azure, or GCP .
• Lead or actively participate in critical incident response, root-cause analysis, and post-incident reviews.
• Partner across application, infrastructure, architecture, and operations teams to implement durable solutions.
• Drive measurable improvements in application performance, availability, incident recurrence, and MTTR.

Who You Are

• 7+ years of relevant software engineering, SRE, performance engineering, production engineering, or application reliability experience.
• Strong hands-on experience troubleshooting complex enterprise applications in production environments .
• Strong knowledge of performance engineering , including profiling, latency analysis, load/stress testing, capacity planning, and performance tuning.
• Experience with AWS, Azure, or GCP .
• Experience supporting modern enterprise applications such as Java, .NET, web/UI, APIs, or distributed systems .
• Strong experience using observability and monitoring tools , such as Dynatrace or similar platforms, to analyze metrics, logs, and traces.
• Strong understanding of incident management, root-cause analysis, production readiness, and reliability practices.
• Experience troubleshooting across application, database, infrastructure, network, and integration layers.
• Mainframe/COBOL experience is valuable, particularly in environments integrating legacy and modern applications.
• Strong technical leadership and ability to operate independently during high-impact production incidents.
• Excellent English communication skills , with the ability to clearly explain complex technical issues to technical and non-technical stakeholders.
• Must be legally authorized to work in the United States without current or future employer sponsorship.

Work Environment

• If you live within 40 km (25 miles) of a DXC office, you are expected to work onsite at least two days per week.