Senior Site Reliability & Performance Engineer

Job Description:

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.

At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We're committed to fostering an inclusive environment where everyone can thrive.

If you are an applicant from the United States, Guam, or Puerto Rico

DXC Technology Company (DXC) is an Equal Opportunity employer. All qualified candidates will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, pregnancy, veteran status, genetic information, citizenship status, or any other basis prohibited by law. View postings below .

We participate in E-Verify. In addition to the posters already identified, DXC provides access to prospective employees for the Federal Minimum Wage Poster, Federal Polygraph Protection Act Poster as well as any state or locality specific applicant posters . To access the postings in the link below, select your state to view all applicable federal, state and locality postings. Postings are available in English, and in Spanish, where required. View postings below.

Postings Link (https://mandatoryview.com/?licenceid=c38a7700-5aa2-48a3-b95a-22e6e1fb0721&producttype=onlineapplicant)

Disability Accommodations

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Please note: DXC will respond only to requests for accommodations due to a disability.

Recruitment fraud is a scheme in which fictitious job opportunities are offered to job seekers typically through online services, such as false websites, or through unsolicited emails claiming to be from the company. These emails may request recipients to provide personal information or to make payments as part of their illegitimate recruiting process. DXC does not make offers of employment via social media networks and DXC never asks for any money or payments from applicants at any point in the recruitment process, nor ask a job seeker to purchase IT or other equipment on our behalf. More information on employment scams is available here .