116 net engineer jobs at 68 companies in Middletown, DE

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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
2w
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Senior .NET Developer
Crum Lynne or Chicago or Reston or Boca Raton
$90k-$150k/yr RemoteFull Time
TransUnion
TransUnionNYSE: TRU: Provides global credit reporting and risk management information solutions.
5+ YOE5+ years building enterprise .NET applications, strong architecture and database skills, Agile experience, cloud and CI/CD familiarity, Bachelor's degree or equivalent experience.
C#, ASP.NET MVC, ASP.NET Web API, .NET Framework, .NET Core, .NET 5, .NET 6, Microsoft Visual Studio, SQL Server, PostgreSQL, AWS, Autofac, Ninject, Unity, CI/CD
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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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Senior Software Engineer-.Net
Baltimore, Maryland, United States
$110k-$120k/yr HybridFull Time
InVita Healthcare Technologies
InVita Healthcare Technologies: Software for blood, donation, and forensic life-saving operations.
5+ YOEBachelor's degree and 5+ years .Net experience with WinForms, C# or VB.NET, SQL Server, Entity Framework; experience with GIT, Jira, Bitbucket; strong communication and troubleshooting skills.
.Net, WinForms, C#, VB.NET, SQL Server, Entity Framework, GIT, Jira, Bitbucket, DevExtreme, Infragistics, Telerik
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26-2285: .Net Developer - Baltimore, MD
Baltimore, Maryland, United States
$70k-$100k/yr OnsiteFull Time
Navitas Business Consulting
Navitas Business Consulting: Provides digital transformation and IT solutions for government agencies.
5+ YOEBachelor's in CS/Engineering, 5+ years software engineering with expert .NET Core and C#, AWS and SQL/data warehousing experience, ability to lead architecture and mentor staff.
.NET Core, C#, Azure, AWS, SQL, Microsoft Excel
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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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AWS Senior .NET Modernization Engineer
Baltimore, Maryland, United States
OnsiteFull Time
Aligned Technology Group
Aligned Technology Group: Provides AWS-focused cloud consulting and managed technology services.
5+ YOE5+ years with C# and .NET; experience with .NET Framework and .NET Core/.NET 8; modernizing legacy enterprise applications; REST APIs, SQL Server, Git, Agile; strong communication and problem-solving.
.NET Framework, .NET Core, .NET 8, C#, ASP.NET, Docker, Kubernetes, Amazon EKS, SQL Server, Git, Terraform, CloudFormation, AWS CDK, AWS
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Lead .Net Platform Engineer (Payments Ingestion) - Senior Vice President
New Castle or Tampa
$156k-$234k/yr HybridFull Time
Citi
CitiNYSE: C: Providing global banking, investment, and wealth management services.
Hands-on .Net engineering for high-throughput payment platforms, microservices, Kafka, Oracle/MongoDB, cloud-native (OpenShift/AWS), Kubernetes/Docker, CI/CD, Jenkins, and platform leadership; AI/ML integration and strong stakeholder communication.
.Net, React, Kafka, Oracle, Microsoft SQL, MongoDB, Spring MVC, Spring Boot, REST APIs, Jenkins, Gradle, Maven, Grafana, OpenShift, AWS, Kubernetes, Docker, GitHub Copilot, Gemini, LLMs, JVM, CI/CD, TDD, Python, Pinecone, Weaviate, LangChain, AutoGen, COBOL, Assembler, C++
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Lead .Net Platform Engineer (Payments Ingestion) - Senior Vice President
New Castle or Irving
$156k-$234k/yr HybridFull Time
Citi
CitiNYSE: C: Global diversified financial services holding.
10+ YOE10+ years .Net experience, microservices, Kafka, Oracle/MongoDB, cloud-native (OpenShift/AWS), Kubernetes/Docker, CI/CD (Jenkins, Gradle/Maven), JVM performance tuning, API design, secure engineering, Agile/SAFe. Bachelor's required; Master's preferred.
.Net, REST APIs, Spring MVC, Spring Boot, Kafka, Oracle, Microsoft SQL, MongoDB, OpenShift, AWS, Kubernetes, Docker, CI/CD, Jenkins, Gradle, Maven, Grafana, GitHub Copilot, LLMs, Gemini, JVM, Python, Pinecone, Weaviate, LangChain, AutoGen, COBOL, Assembler, C++, React
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.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
2mo
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Senior .NET Azure AI Developer - Baltimore, MD
Baltimore, Maryland, United States
$100k-$203k/yr OnsiteFull Time
Accenture Federal Services
Accenture Federal ServicesNYSE: ACN: Provides technology and consulting services to U.S. federal agencies.
10+ YOE10+ years experience; strong C#/.NET; extensive Azure services; AI/ML with Azure tools; RESTful APIs; DevOps with Azure DevOps; Docker; IaC with Bicep.
C#, .NET, ASP.NET Core, Microsoft Azure, Azure Functions, Azure OpenAI, Azure ML, Cognitive Services, RESTful APIs, SQL, Cosmos DB, Docker, Kubernetes, Terraform, Bicep, Azure DevOps, Git, Python, Node.js, Angular, React, SQL Server, PostgreSQL, Cosmos DB
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.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
3mo
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Sr. Full Stack .NET Software Engineer (IT@JH University Information Systems)
Baltimore, Maryland, United States
$86k-$150k/yr RemoteFull Time
Johns Hopkins University
Johns Hopkins University: A private research university providing higher education and clinical healthcare.
6+ YOEBachelor's in a related field and 6+ years related experience; strong Microsoft .NET/C#, SQL, Git, Windows/Linux/Docker skills; experience with web frameworks (Vue.JS), cloud (AWS/Azure), testing, documentation, and mentoring/leading junior staff.
Microsoft .NET, C#, SQL, Git, Gitflow, Microsoft Windows, Linux, Docker, Vue.JS, JavaScript, AWS, Azure, XML, XSL, JSON, HTML, CSS, SQL Reporting Service, .NET Framework, .NET Core, ASP.NET, ASP.NET MVC, Web API, VB.NET, T-SQL, AI coding agents
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Distinguished Engineer - Delivery (Remote)
Baltimore, Maryland, United States
$185k-$343k/yr RemoteFull Time
CareFirst BlueCross BlueShield
CareFirst BlueCross BlueShield: Provides health insurance coverage and administrative healthcare services.
10+ YOE10+ years software engineering experience with 5+ years in senior/technical lead roles; Bachelor's in CS or related; TriZetto Facets, Azure and AWS experience; expertise in Java, Python, C#, .NET, Node.js, React, Angular; strong communication and leadership.
TriZetto Facets, Azure, AWS, Java, Python, C#, .NET, Node.js, React, Angular, Electronic Medical Records (EMR)
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Test Engineer 3
Newark, Delaware, United States
$122k-$203k/yr OnsiteFull Time
Hologic
HologicNASDAQ: HOLX: Develops medical technology for women's healthcare and diagnostics.
2+ YOEDesign and develop manufacturing test equipment and software; perform verification/validation; experience with electro-mechanical systems, PCB/soldering, analog/digital electronics, sensors; programming (C/C++, .NET, LabVIEW, Visual Basic, PLC); SolidWorks; knowledge of FDA and manufacturing quality methods.
Microsoft Office, SolidWorks, C, C++, .NET, LabVIEW, CVI, Visual Basic, PLC Ladder Logic
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Lead Full Stack Engineer (.Net, Vue/React) - Fully Remote
Baltimore or United States
RemoteFull Time
CoverGo
CoverGo: No-code insurance platform for life, health, and P&C insurers.
8+ YOE2+ Mgmt8+ years full-stack experience, 2+ years in a lead role, proficiency with .NET Core,C#,GraphQL,MongoDB,Docker,Javascript,Vue.js/React.js,cloud platforms,testing,security and performance optimization.
.NET Core, C#, GraphQL, MongoDB, Docker, Javascript, Vue.js, React.js, AWS, Azure, Google Cloud
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Full Stack Engineer
Broomall, Pennsylvania, United States
$100k-$120k/yr RemoteFull Time
Xactus
Xactus: Provides verification and credit reporting for mortgage lenders.
3+ YOE3+ years professional software development with C#/.NET and SQL Server; experience with ASP.NET Web Forms, Angular, TypeScript/JavaScript; exposure to .NET Core and Azure; strong communication and problem-solving; US work authorization required.
C#, .NET Framework, .NET Core, ASP.NET Web Forms, Angular, TypeScript, JavaScript, SQL Server, Azure, Azure Devops, Terraform, Terragrunt, HTML, CSS
1mo
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Principal Solutions Engineer
Malvern, Pennsylvania, United States
HybridFull Time
Crane NXT
Crane NXTNYSE: CXT: Provides industrial technology for secure payments and product authentication.
5+ YOE5+ years software development experience in retail payments with expertise in POS integration, remote teamwork, Microsoft .NET Framework & Linux, C++/C#/Java, REST API and data exchange specifications.
Microsoft .NET Framework, Linux, C++, C#, Java, REST API
3w
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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
1mo
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CRM Developer
Cockeysville or Hunt Valley
$115k-$125k/yr HybridFull Time
Sinclair
SinclairNASDAQ: SBGI: Operates television stations and produces news and sports programming
5+ YOEBachelor's in CS/IS, 5+ years software engineering/CRM development (3+ years Dynamics 365), strong .NET/C#, SQL, JavaScript/TypeScript, Power Platform, Azure, REST/SOAP integrations, and collaboration skills.
Microsoft Dynamics 365 CRM, Microsoft Dataverse, Microsoft Power Platform, Microsoft Power Apps, Microsoft Power Automate, Microsoft Power BI, .NET, C#, SQL Server, T-SQL, JavaScript, TypeScript, HTML, CSS, REST APIs, SOAP, Azure Functions, Logic Apps, Service Bus, Azure DevOps, Git, Microsoft Graph, Microsoft Entra ID (Azure AD), Angular, React, CI/CD, Codex, ChatGPT, CoPilot, Foundry