22 software net jobs at 16 companies in Clayton, DE

5d
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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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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
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++
2mo
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Software Applications Engineer
Aberdeen Proving Ground, Maryland, United States
$115k-$130k/yr HybridFull Time
Entarian
Entarian: Provides mission-critical engineering and technology solutions for government agencies.
5+ YOEDoD Secret clearance; BS in computer science or related field; 5+ years in software applications engineering; strong .NET/C#, MudBlazor, HTML/CSS/JavaScript; API development; Azure/DevOps; security+; hybrid role near Aberdeen Proving Ground, MD.
C#, .NET, MudBlazor, HTML, CSS, JavaScript, OpenXml, ASP.NET Core, Entity Framework Core, SQL, Azure, DevOps, OpenID Connect, OAuth 2.0, Microsoft Entra ID
1mo
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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
1mo
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Software Engineer III- SRE
Wilmington, Delaware, United States
OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
5+ YOEFormal training/certification in software engineering plus 5+ years experience. Proficiency in reliability, scalability, performance, security, automation/CI-CD, networking, observability tools, cloud-native practices, and safe use of enterprise AI-assisted development.
Python, Java Spring Boot, .Net, Grafana, Dynatrace, Prometheus, Datadog, Splunk
2mo
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Senior Software Engineer (Exton, PA, US)
Exton or Philadelphia
HybridFull Time
Bentley Systems
Bentley SystemsNASDAQ: BSY: Software for designing, building, and operating global infrastructure.
BS or MS in computer science or software engineering; strong: C#, .NET Core, OpenID, OAuth; Git; Azure DevOps; Agile (SCRUM); Azure REST APIs/SDKs; OO design patterns; independent contributor without travel.
C#, .NET Core, OpenID, OAuth, Git, Azure DevOps, Azure REST APIs, Azure Services SDKs, Object oriented programming
2mo
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Sr. Principal Cyber Software Engineer
Annapolis Junction or San Antonio or Aurora or Carey
$149k-$235k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
8+ YOEBachelor's degree in computer science, information systems, or network engineering with 8+ years experience; strong C/C++, Java, Python; CNO tools; Windows/.NET and Unix/Linux development.
C, C++, Java, Perl, Python, Visual Studio, NET, Unix/Linux, Makefiles
2w
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Tech Lead Software Engineering Sr Advisor II
Berkeley Heights or Omaha or Wilmington
$186k-$286k/yr OnsiteFull Time
Fiserv
FiservNew York Stock Exchange: FI: Provides financial technology and payment processing services to institutions.
10+ YOE10+ years software engineering experience, strong Java/Spring Boot and cloud expertise, CI/CD and containerization experience, bachelor’s degree or equivalent, experience with AI-assisted development preferred.
Java, Spring Boot, .NET, Angular, Python, Microsoft Azure, Amazon Web Services (AWS), Java Persistence API (JPA), Hibernate, GitLab CI, Jenkins, Kubernetes, OpenShift, Docker, Google Cloud Platform (GCP), OAuth 2.0, JSON Web Token (JWT), transport layer security (TLS)
3d
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Senior Software Engineer
Wilmington, Delaware, United States
HybridFull Time
CSC
CSC: Provides global business administration and compliance solutions.
Strong C#/.NET Core development skills, front-end framework and JavaScript/TypeScript proficiency, experience with Entity Framework Core, SQL Server, Azure Functions, AI-assisted tools, and test automation.
C#, .NET Core, Blazor Server, Blazor WebAssembly, GitHub Copilot, Cursor, Claude Code, Entity Framework Core, SQL Server, Azure Functions, Bootstrap, Playwright, MediatR, Fluxor, Polly, Docker, Kubernetes, Artillery, JMeter, K6, Locust, Azure AI Foundry, Azure OpenAI Service, Git, React, Angular, Vue, JavaScript, TypeScript
4d
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Power Apps Developer - Clearance Required
Crystal City or Aberdeen
$160k/yr HybridFull Time
LMI
LMI: Delivers management, technology, and analytics solutions for federal agencies.
3+ YOE3+ years developing SharePoint and Power Platform solutions; proficiency with .NET, C#, PowerShell, SQL Server; bachelor\u0002s degree; active Secret clearance required; strong problem-solving and communication skills.
SharePoint, Power Platform, Power BI, Power Apps, Power Pages, Power Automate, .NET, C#, PowerShell, SQL Server, Vantage
1mo
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AI Solutions Architect
Kennett Square or Pennsylvania
HybridFull Time
Chatham Financial
Chatham Financial: An independent capital markets advisor delivering integrated advice and technology to help clients manage financial risk.
5+ YOEBachelor's in CS/IS/Engineering or equivalent, 5+ years in solutions/enterprise architecture, experience with Azure cloud services, Python, C#/.NET, TypeScript/React, OAuth2/OIDC, LLM integration patterns, CI/CD (GitHub Actions), and strong communication.
Onyx, Python, FastAPI, Azure, App Service, Functions, Cosmos DB, Blob Storage, C#, .NET, PostgreSQL, TypeScript, React, OAuth 2.0, OpenID Connect (OIDC), GitHub Actions, CI/CD, large language model (LLM)
2mo
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CNO Developer
Annapolis Junction, Maryland, United States
$113k-$257k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
6+ YOE6+ yrs OO programming; 6+ yrs Windows/.NET or UNIX makefiles; C, C++, Python; software life cycle; vulnerability analysis; TS/SCI with poly; BS in CS with embedded exp or 6+ yrs embedded exp
C, C++, Python, Go, Rust, Assembly
1mo
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D365 F&O Technical Solution Architect
Denver or Los Angeles or Washington or Troy or New York or Houston or Chicago or Grand Rapids or Owings Mills or Richmond or Raleigh or Boston or San Jose or San Francisco or Austin or Kalamazoo or Spokane or Fort Worth or Atlanta or Orlando or Dallas or Wilmington or Phoenix or San Antonio or Milwaukee or Madison or McLean or Woodbridge or Stamford or Miami or Philadelphia or Charlotte or West Palm Beach or Costa Mesa or St. Louis or Fort Lauderdale or Seattle or Rosemont or Pittsburgh or Tulsa or Cincinnati or Cleveland or Columbus or Akron or Cherry Hill or Tampa or Minneapolis or Anchorage or Salt Lake City or Jacksonville or Boulder or Nashville or Oak Brook or Las Vegas or Indianapolis or San Diego
$158k-$197k/yr OnsiteFull Time
BDO USA
BDO USA: Provides accounting, tax, and business advisory services to organizations.
6+ YOE6+ years technical D365 experience leading projects and teams; proficiency with X++, .NET/C#, SSRS, RESTful APIs, SQL, JSON, ADO/Visual Studio/LCS and D365 F&O implementation technologies; strong analytical and communication skills.
X++, .NET/C#, SSRS, RESTful API Web Services, SQL, JSON, ADO, Visual Studio, LCS, ADO Pipelines, Build Runs (Software Deployable Packages), D365 F&O, Microsoft Dynamics 365, Microsoft Dynamics Finance & Operations, Microsoft Dynamics Business Central, Business Central, Sales Cloud, Service Cloud, Marketing Cloud, Microsoft Finance and Supply Chain Management, Dynamics 365 CRM
3w
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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
2mo
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CNO Analyst/Porgrammer (Fort Meade, MD, Maryland, United States)
Fort Meade, Maryland, United States
$89k-$249k/yr OnsiteFull Time
HII
HIINYSE: HII: Builds naval ships and provides global defense technology solutions.
2+ YOEExperience in one or more of Assembly, C, C++, Java, Perl, or Python; Windows/UNIX environments; TS/SCI with Poly clearance.
Assembly, C, C++, Java, Perl, Python, Visual Studio, .NET, Makefiles, UNIX, Windows, Embedded, Mobile platforms