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Wilmington • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Wilmington • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Wilmington • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Wilmington • 50 milesRemote · Hybrid · Onsite · Field · All Environments

67 net c developer jobs at 44 companies in Wilmington, DE

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Senior .NET Developer

Philadelphia, Pennsylvania, United States

OnsiteFull Time

Amyx

Amyx: Provides IT and management services to federal government agencies.

5+ YOEUS citizen with 5+ years .NET experience, expertise in C#, ASP.NET, MVC, Angular, SQL/Oracle, unit testing, and Azure DevOps; ability to obtain NACLC and DoD 8570/8140 certifications preferred.

ASP.NET Web Forms, ASP.NET MVC, C#, Angular, Oracle Database, Informatica PowerCenter, HTML, JavaScript, TypeScript, jQuery, Ajax, Entity Framework, Angular Material, Infragistics, Kendo UI, DevExpress, xUnit, nUnit, MS Tests, Jasmine, JEST, .NET Framework 4.8, .NET Core, Microsoft Visual Studio, Microsoft VS Code, Azure DevOps Server, SQL, Oracle SQL, PL/SQL, TOAD, Microsoft Team Foundation Server, Microsoft Office Suite

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1w

Sr .NET Developer

King of Prussia, Pennsylvania, United States

$68-$70/hr HybridContract

Cayuse Holdings

Cayuse Holdings: Delivers IT services and mission support to government agencies.

8+ YOE3+ Mgmt8+ years .NET development experience, 3+ years leading teams, strong C#/.NET, RESTful API, SQL Server, Entity Framework, Azure, Git; bachelor's in CS/IT or equivalent.

C#, .NET Framework, .NET Core, .NET 8, ASP.NET MVC, ASP.NET Core, RESTful APIs, SQL Server, Entity Framework, Azure, Git, Azure DevOps, Docker, Kubernetes, Angular, React, Vue.js

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1mo

Lead Software Engineer - C# / .Net

Wilmington, Delaware, United States

$128k-$214k/yr HybridFull Time

M&T Bank

M&T BankNYSE: MTB: Provides retail, commercial, and wealth management banking services.

5+ YOE5+ years systems analysis/application development (or 7+ with associate). Expert C#/.NET experience, RESTful API and service architecture, DevOps/CI/CD familiarity, exposure to Angular, strong analytical and communication skills.

C#, .NET, RESTful APIs, Angular, CI/CD, DevOps, SDLC, Loan IQ, Finastra

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1mo

Backend .NET Engineer

Philadelphia, Pennsylvania, United States

OnsiteFull Time

Comcast

ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.

5+ YOE5+ years backend development with C#/.NET, REST APIs, SQL/EF Core, CI/CD, automated testing, Git, cloud (Azure preferred), spec-first workflows (OpenSpec) and experience mentoring teammates.

C#, Microsoft .NET, ASP.NET Core, ASP.NET Core Web API, SQL, Entity Framework Core, Git, Azure, OpenSpec, GitHub Spec Kit, CI/CD

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3w

Software Developer (.NET/C#) – NAVSUP Programs

Philadelphia, Pennsylvania, United States

HybridFull Time

ITC Defense

ITC Defense: Provides engineering and logistics services to defense organizations.

0+ YOEBachelor's in CS/IT/SE, active or obtainable Secret clearance, 0–4 years development experience, proficiency with C#, ASP.NET MVC, SQL Server, HTML, JavaScript, REST/Web Services, OOP, relational DBs, troubleshooting, and Agile teamwork.

C#, ASP.NET, MVC, SQL Server, HTML, JavaScript, REST APIs, Web Services, WebRoR, EFTS, SCIP, VersionOne, Azure DevOps, Jira

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1w

.Net Application Developer

Philadelphia, Pennsylvania, United States

$95k-$102k/yr OnsiteFull Time

PMHCC

PMHCC: Provides administrative and management services for public behavioral health programs.

3+ YOE3+ years .NET development experience; proficiency with C#, ASP.NET Core/MVC/Web API, Microsoft SQL Server, secure coding and HIPAA compliance; strong communication and problem-solving skills.

C#, ASP.NET Core, Razor Pages, MVC, Web API, HTML, CSS, JavaScript, Microsoft SQL Server, Git, Azure DevOps, Azure Boards, ASP.NET Core Identity, Azure AD (Entra ID), RESTful APIs

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1mo

.NET Full Stack Developer (Onsite Hybrid) (King Of Prussia, PA, US)

King Of Prussia, Pennsylvania, United States

HybridFull Time

NTT DATA

NTT DATA: Global provider of IT and business consulting services.

7+ YOE7+ years experience; strong C#, ASP.NET Core, .NET Framework, SQL/T-SQL and Microsoft SQL Server; Angular (v14-18), HTML/CSS3/Bootstrap/jQuery; microservices, Docker, Kubernetes; REST APIs and TDD practices.

C#, ASP.NET Core 8, .NET Framework, MVC, Web API 2.0, T-SQL, SQL, Microsoft SQL Server, PostgreSQL, Angular, HTML, Bootstrap, jQuery, CSS3, Docker, Kubernetes

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1mo

.NET Application Support Engineer

Ashburn or Harrisburg or Pennsauken

OnsiteFull Time

TransCore

TransCore: Provides electronic tolling and intelligent traffic management solutions.

3+ YOE3+ years supporting or developing .NET applications, strong C# debugging, PowerShell scripting, IIS management, T-SQL/MS SQL proficiency, and experience with monitoring and automation; bachelor’s degree or equivalent.

C#, .NET Core, .NET Framework, ASP.NET MVC, Web API, PowerShell, IIS, T-SQL, Microsoft SQL Server, Event Viewer, Serilog, Log4Net, Azure, Google, AWS, Docker, Azure DevOps, Jenkins, GitHub Actions, Jira

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2w

Software Developer

Exton or Philadelphia

RemoteFull Time

CAP Index

CAP Index: Provides data-driven crime risk forecasting and security management solutions.

5+ YOE5+ years professional software development experience with C# and .NET; experience with React, TypeScript, SQL Server, PostgreSQL, Docker, testing tools, and CI/CD; bachelor's degree or equivalent experience preferred.

C#, .NET, React, SQL Server, PostgreSQL, ASP.NET Core, Entity Framework Core, TypeScript, Testcontainers, Playwright, Docker, Docker Compose, GitHub Actions, xUnit, Bicep, Azure Container Apps, Kubernetes

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Lead Full Stack Engineer (.Net, Vue/React) - Fully Remote

United States or Philadelphia

RemoteFull Time

CoverGo

CoverGo: No-code insurance platform for life, health, and P&C insurers.

8+ YOE2+ Mgmt8+ years full-stack experience, 2+ years leading teams, proficiency with .NET Core/C#, GraphQL, MongoDB, Docker, JavaScript and Vue.js/React, cloud platforms, TDD and DDD, strong communication and problem-solving.

.NET Core, C#, GraphQL, MongoDB, Docker, JavaScript, Vue.js, React.js, AWS, Azure, Google Cloud

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1mo

Senior Software Engineer

Lake Forest or Houston or Philadelphia

$124k-$207k/yr HybridFull Time

AVEVA

AVEVA: Industrial software for engineering and operational performance management.

Strong software development in C# (.NET) or Node.js; hands-on Microsoft Azure cloud experience; CI/CD, DevOps, container experience; knowledge of cloud architecture, networking, and secure development practices.

Microsoft Azure, C#, .NET, Node.js, CI/CD

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2mo

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2mo

Sr. Software Engineer

Camden, New Jersey, United States

$116k-$127k/yr HybridFull Time

Subaru of America

Subaru of America: Distributes automobiles and services in the United States.

6+ YOE6+ years full stack development with .NET/C#, REST APIs; Dynamics 365/Dataverse; Azure; Power Platform; SDLC/DevOps; Bachelor's degree.

.NET, C#, SQL Server, REST APIs, Azure, Microsoft Dynamics 365, Dataverse, Power Apps, Power Automate, Azure DevOps, Git, CI/CD

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1mo

Software Developer

Conshohocken or Portland

OnsiteFull Time

Suvoda

Suvoda: Software for clinical trial randomization and patient data collection.

Bachelor's degree; experience with IRT preferred; prior work with C#, .NET, SQL Server; familiarity with Web-Services, MVC, and Entity Framework; strong attention to detail and teamwork skills.

Interactive Response Technology (IRT), C#, .NET, SQL Server, Web-Services, Model View Controller (MVC), Entity Framework (EF)

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2d

Junior Software Engineer

Philadelphia, Pennsylvania, United States

$75k-$95k/yr HybridFull Time

Ballard Spahr

Ballard Spahr: Provides comprehensive legal advice and litigation services to organizations.

3+ YOE3 years software development experience preferred; hands-on C#/.NET, React/Next.js, JavaScript/TypeScript, SQL, Azure, Power BI/Power Platform, Docker, and CI/CD familiarity; bachelor’s degree preferred.

C#, .NET, React, Next.js, JavaScript, TypeScript, SQL, Power BI, Power Platform, Azure DevOps, Microsoft Azure, Docker, Azure Container Registry (ACR), Azure App Service, Azure Functions, SQL Server Reporting Services (SSRS), Power Apps

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2w

Software Engineer - AI Accelerated Development

Blue Bell, Pennsylvania, United States

OnsiteFull Time

Signant Health

Signant Health: Provides digital evidence generation tools for clinical trial research.

Full-stack .NET (C#/ASP.NET Core) developer with hands-on agentic AI experience, LLM API integration (Anthropic/OpenAI/Bedrock/Azure OpenAI), daily Claude Code use, Python proficiency, and observability for AI features.

.NET, C#, ASP.NET Core, Claude Agent SDK, Claude Code, Anthropic, OpenAI, Bedrock, Azure OpenAI, Qdrant, pgvector, Pinecone, Python, Model Context Protocol (MCP)

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Power Apps Developer - Clearance Required

Crystal City or Aberdeen

$160k/yr HybridFull Time

LMI

LMI: Provides management consulting and digital solutions to government agencies.

3+ YOEActive Secret clearance preferred, 3+ years SharePoint and Power Platform development, .NET/C#/PowerShell proficiency, SQL Server knowledge, Bachelor's degree in CS/IT, strong communication and problem-solving skills.

Microsoft SharePoint, Power Platform, Microsoft Power BI, Microsoft Power Apps, Microsoft Power Pages, Microsoft Power Automate, .NET, C#, PowerShell, SQL Server, Vantage

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1mo

Dynamics 365 Developer (Remote Opportunity)

Philadelphia or Pennsylvania or United States

RemoteFull Time

VetsEZ

VetsEZ: Digital transformation and healthcare IT services for government agencies.

5+ YOEBachelor's degree, 5+ years Dynamics 365 (Customer Service) experience, proficiency with Dynamics 365 customization and development (JavaScript, C#, .NET, Power Platform), Dataverse, Power Apps/Automate, Azure, integrations and APIs.

Microsoft Dynamics 365, JavaScript, C#, .NET, Microsoft Power Platform, Microsoft Dataverse, Microsoft Power Apps, Microsoft Power Automate, Microsoft Azure, Microsoft Logic Apps, Microsoft Azure Functions, APIs, web services, DevOps

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Senior Software Engineer, Medical Device

Newark, Delaware, United States

$107k-$167k/yr HybridFull Time

Hologic

HologicNASDAQ: HOLX: Develops medical technology for women's healthcare and diagnostics.

5+ YOEExpert in .NET/C# and object-oriented design with strong CS fundamentals, multithreading, debugging, CI/CD and software architecture; 5+ years (Bachelors) or 4+ years (Masters) experience; mentoring and technical leadership skills; medical device experience a plus.

.NET, C#, WPF, Java, Android, C++, C, DICOM, HL7, CICD

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2mo

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2mo

Software Engineer Sr, Level 3

King of Prussia, Pennsylvania, United States

OnsiteFull Time

Lockheed Martin

Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.

Experience with object-oriented development (Java, JavaScript/Node.js, .NET/C#), familiarity with GitLab, Kubernetes, Docker, Rancher, CI/CD and testing practices; US citizen able to obtain and maintain TS/SCI clearance.

Java, JavaScript, Node.js, .NET, C#, GitLab, Kubernetes, Docker, Rancher, git, Jenkins

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5d

Application Developer I

Coppell or Fort Washington

OnsiteFull Time

Newrez

Newrez: Provides residential mortgage lending and loan servicing solutions.

1+ YOE1-2+ years full-stack development experience with T-SQL, .NET/C#, JavaScript framework (Angular), APIs, JWT, MSSQL, SSMS; familiarity with SDLC/Agile and cloud platforms.

T-SQL, .NET Framework, C#, JavaScript, Angular, APIs, JWT Token Authentication, MSSQL, SSMS, JSON, XML, ASP.NET, C++, Microsoft Azure, Excel, SQL

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