102 net developer engineer jobs at 63 companies in Middletown, DE

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Senior .Net Developer
Chicago or Crum Lynne
$90k-$150k/yr HybridFull Time
TransUnion
TransUnionNYSE: TRU: Provides global credit reporting and risk management information solutions.
5+ YOE5+ years software development with strong .NET and SQL Server experience, cloud (GCP/Azure/AWS) familiarity, DevOps and container experience; bachelor's in CS/STEM preferred.
.NET Framework, Microsoft SQL Server, Google Cloud, GCP, Azure, AWS, Kubernetes, Docker, OneTru, DevOps, Continuous Deployment, Infrastructure as Code, Automated Testing, Automated Configuration Management
1mo
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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
3d
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Sr .NET Developer
King of Prussia, Pennsylvania, United States
$68-$70/hr HybridContract
Cayuse Holdings
Cayuse Holdings: Tribally-owned provider of IT and professional services.
8+ YOE3+ Mgmt8+ years developing with Microsoft technologies, 3+ years leading teams, strong C#/.NET, ASP.NET, REST API, SQL Server, Entity Framework, Azure, Git, and Agile experience; Bachelor's or equivalent.
C#, .NET Framework, .NET Core, .NET 8, ASP.NET MVC, ASP.NET Core, SQL Server, Entity Framework, Microsoft Azure, Git, Azure DevOps, Docker, Kubernetes, Angular, React, Vue.js
2d
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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
3w
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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
1mo
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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
1mo
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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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.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
1mo
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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
1mo
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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
4w
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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
1mo
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.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
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
2mo
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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
2w
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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
1w
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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
1w
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AFS Developer
Baltimore, Maryland, United States
$45-$56/hr HybridFull Time
State of Maryland
State of Maryland: Provides public governance and services for Maryland residents.
7+ YOE7+ years designing, developing, testing, implementing and maintaining application or systems software; experience with Microsoft Dynamics 365, X++, AOT, .NET, C#, Visual Studio, Power Automate, Power BI, and SSRS.
X++, AOT, Power Automate, Robotic Process Automation (RPA), .NET, C#, Visual Studio, Power BI, SSRS, Microsoft Dynamics 365, Microsoft Excel
1mo
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Software Developer
Philadelphia, Pennsylvania, United States
$92k-$154k/yr HybridFull Time
AVEVA
AVEVA: Industrial software for engineering and operational performance management.
3+ YOE3+ years software/product development; degree in engineering, computer science, math, or physics; experience with C#/.NET, C++, JavaScript; strong debugging, communication, and design skills.
C#/.NET, C++, JavaScript
2mo
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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
1mo
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Software Engineer
Baltimore, Maryland, United States
$85k-$130k/yr HybridFull Time
Campbell & Company
Campbell & Company: An investment management firm providing quantitative multi-strategy trading and portfolio management.
3+ YOEBachelor's in CS or equivalent experience; 3+ years developing in C#/.NET; 3+ years with SQL Server/Oracle; working knowledge of Python; experience with CI/CD, source control, automated testing; strong design, analytical, and communication skills.
.NET, C#, Python, ASP.NET, SQL, SQL Server, Oracle, CI/CD, Apache Airflow, FIX, Bloomberg API, Microsoft WCF, Microsoft MSMQ, Microsoft Service Bus, Microsoft Windows Services, Microsoft Active Directory (AD)