Senior .NET SDET / QA Automation

Job Title: Senior .NET SDET / QA Automation

Work Location & Reporting Address: Irvine, CA 92618 Onsite-Hybrid

Contract duration: 12 Months

MAX VENDOR RATE: $50/hr

Interview Process (Is face to face required?): Virtual

Must Have Skills:

C#.NET

HTML CSS Javascript

Selenium with C#

Nice to Have Skills:

Handson experience with Github Copilot

Autosys experience

Detailed Job Description:

We are seeking a highly skilled Senior .NET SDET / QA Automation Lead with extensive experience in designing, modernizing, building, and scaling large-scale enterprise test application solutions. The ideal candidate will possess deep expertise in automation framework architecture, cloud validation, API testing, data validation, and AI-assisted quality engineering across complex distributed systems. This role required strong technical leadership, hands-on automation development, and ability to drive quality engineering strategies across multiple product teams.

Key Responsibilities

Provide technical architecture and engineering leadership for complex enterprise automation solution for applications built on the Microsoft technology stack.

Define automation test architecture, technical direction, engineering standards, and modernization roadmaps for enterprise platforms.

Design and develop scalable enterprise automation solutions and services using C#, .NET Core / modern .NET, ASP.NET, Web API, and related frameworks.

Drive improvements in application performance, reliability, observability, scalability, and production supportability.

Troubleshoot complex application, database, integration, and production issues and provide long-term architectural solutions rather than tactical fixes.

Drive API and service validation using REST/SOAP APIs, Postman and SOAP UI.

Perform backend data validation using SQL.

Integrate automation suites into CI/CD pipelines using Gitlab CI, Jenkins and Github Actions leveraging Docker and Kunernetes for scalable test execution.

Design and implement cloud-based and serverless solutions using AWS services such as Lambda, S3, SQS, SNS, RDS, and ECS.

Provide architecture and engineering oversight across UI, services, integration, database, and cloud components.

Support modern front-end technologies including Angular and React integrated with .NET-based backend services.

Establish effective application logging, diagnostics, and case/transaction-level observability to improve production troubleshooting.

Collaborate with engineering and support teams on production support, root-cause analysis, release management, and operational improvements.

Lead technical design reviews, code reviews, architecture discussions, and engineering best practices.

Mentor junior and mid-level engineers and provide technical guidance across development teams.

Participate in technical interviews and support engineering talent development.

Champion appropriate use of AI-assisted software engineering tools to improve developer productivity, code quality, documentation, analysis, and engineering efficiency.

Partner with business and technology stakeholders to translate functional requirements into scalable and maintainable technical solutions.

Preferred Qualifications

10+ years of experience in Software Development Engineering in Test (SDET), software development experience, Test Automation, with significant experience in Quality Engineering.

Strong track record designing and modernizing large-scale enterprise automation solutions.

Extensive hands-on experience with the Microsoft .NET ecosystem.

Experience modernizing legacy desktop/client-server applications into modern web or service-based architectures.

Experience designing enterprise authentication and SSO solutions.

Experience supporting business-critical production applications and resolving complex production issues.

Strong SQL skills and proven experience in Data Validation testing.

Strong understanding of cloud, API, integration testing.

Experience leading geographically distributed or cross-functional engineering teams.

Strong analytical, troubleshooting, communication, and stakeholder-management skills.

Minimum Years of Experience: 10+ years

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