Senior .NET Developer

LingaTech

. Developing, supporting, and optimizing large-scale, mission-critical enterprise systems within the Microsoft technology stack.

Posted 4/21/2026contractRemote • 🇺🇸 United StatesSeniorWebsite

Tech Stack

Tools & technologies

ASP.NETAzureCloudMS SQL Server.NETSOAPSQL

About the role

Key responsibilities & impact

Developing, supporting, and optimizing large-scale, mission-critical enterprise systems within the Microsoft technology stack.
Ensuring stability, performance, and scalability.
Driving continuous improvement across infrastructure, integrations, and data exchange standards.
Monitoring operational health and driving ongoing improvements across enterprise systems and supporting technologies.
Leading troubleshooting and resolution of complex, end-to-end issues spanning multiple systems, integrations, and external dependencies.
Identifying, assessing, and mitigating risks across applications, infrastructure, and integrations.
Creating and maintaining architecture, infrastructure, and troubleshooting documentation.
Defining, tracking, and reporting on KPIs for system performance, reliability, and operational effectiveness.
Building dashboards, reports, and executive summaries to communicate system health and performance metrics.

Requirements

What you’ll need

BS Degree from a 4-year accredited college or university
6+ years of experience in full software development lifecycle, including coding, testing, deployment, and maintenance on the Microsoft technology stack
5+ years of experience with .NET Framework (versions 1.1 – 4.6.x)
5+ years of experience developing with ASP.NET
5+ years of experience programming in C#
5+ years of experience working with WCF Web Services
5+ years of experience applying Object-Oriented Development principles and design patterns
5+ years of experience with Microsoft SQL Server, including strong hands-on development and query optimization
5+ years of experience using Visual Studio for development and debugging
5+ years of experience maintaining and enhancing technical documentation
3+ years of experience in IEPD lifecycle management, including developing and documenting IEPDs in alignment with NIEM specifications
3+ years of experience performing ESB migrations, including refactoring SOAP/REST services to support NIEM-conformant messaging without impacting downstream systems
3+ years of experience managing XML namespaces and versioning strategies to ensure backward compatibility during phased migrations
2+ years of experience with .NET Core development
2+ years of experience building and consuming Web APIs
Willingness and ability to provide after-hours production support as needed
Preferred: Experience working with Azure cloud services and infrastructure

Benefits

Comp & perks

Full benefits that cover everything from medical to dental, vision, and beyond.
401k
Term life insurance
Accidental death & dismemberment coverage
Long-term disability
Employee referral program
Training sessions
Employee appreciation events

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

.NET FrameworkASP.NETC#WCF Web ServicesObject-Oriented DevelopmentMicrosoft SQL ServerVisual Studio.NET CoreWeb APIsIEPD lifecycle management

Soft Skills

troubleshootingrisk assessmentdocumentationcommunicationcontinuous improvementperformance monitoringproblem resolutionleadershiporganizational skillsreporting

Certifications

BS Degree