Senior Performance Test Engineer with .Net - Grand Rapids, MI jobs in United States
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Capgemini · 4 hours ago

Senior Performance Test Engineer with .Net - Grand Rapids, MI

positionSouthfield, MI
timeFull-time
remoteOnsite
seniorityMid, Senior Level
money$87K/yr - $192K/yr
date7+ years exp

Capgemini is a global business and technology transformation partner, and they are seeking a highly skilled Performance Engineer with deep expertise in .NET application performance tuning and diagnostics. The role involves diagnosing and resolving performance issues, designing and executing performance tests, and collaborating with development teams to optimize performance across cloud and hybrid environments.

ConsultingInformation TechnologyInsurTechIT ManagementSoftware
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H1B Sponsor Likelynote

Responsibilities

Diagnose and resolve performance issues across .NET applications in cloud, on-prem, and hybrid environments using profiling, tracing, and telemetry tools
Design and execute performance tests (load, stress, soak) to validate service-level expectations for latency, throughput, and resource utilization
Analyze distributed traces and telemetry to identify bottlenecks across APIs, caches, messaging, and data layers; provide actionable recommendations
Collaborate with development teams to optimize algorithmic efficiency, concurrency patterns, and resource usage; mentor teams on performance-aware development
Build dashboards and alerts using APM/observability tools (Dynatrace, Datadog, Grafana) to monitor KPIs and detect regressions early

Qualification

.NET applicationsPerformance tuningProfiling toolsAzure Performance ProfilingAPM toolsDistributed tracingCollaborationMentoring

Required

7+ years building/supporting .NET applications (.NET Framework and .NET 6/7/8)
Strong knowledge of CLR internals, GC modes, thread pool behavior, JIT, and async/await execution
Hands-on experience with Azure Performance Profiling, Azure Monitor, Application Insights, and cloud-hosted performance considerations
Proficiency with APM/observability tools such as Dynatrace, Datadog, Grafana, or similar
Familiarity with distributed tracing (e.g., OpenTelemetry) and multi-service trace interpretation

Benefits

Paid time off based on employee grade (A-F), defined by policy: Vacation: 12-25 days, depending on grade, Company paid holidays, Personal Days, Sick Leave
Medical, dental, and vision coverage (or provincial healthcare coordination in Canada)
Retirement savings plans (e.g., 401(k) in the U.S., RRSP in Canada)
Life and disability insurance
Employee assistance programs
Other benefits as provided by local policy and eligibility

Company

Capgemini

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Capgemini is a software company that provides consulting, technology, and digital transformation services.
dateFounded in 1967
location
Paris, Ile-de-France, FRA
people-size10001+ employees
web-link
https://www.capgemini.com

H1B Sponsorship

Capgemini has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2228)
2024 (3016)
2023 (3425)
2022 (4392)
2021 (3311)
2020 (5871)

Funding

Current Stage
Public Company
Total Funding
$4.72B
2025-09-18Post Ipo Debt· $4.72B
1999-04-01IPO

Leadership Team

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Aiman Ezzat
CEO, Capgemini Group
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Anirban Bose
CEO of Americas Strategic Business Unit
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