42 dotnet jobs at 20 companies in Clayton, DE

2mo
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Senior Syteline Developer I
Middle River or Albuquerque or Long Beach or Silver Spring or Denver or Stennis Space Center
$115k-$130k/yr OnsiteFull Time
Rocket Lab
Rocket LabNasdaq: RKLB: Operates launch vehicles and manufactures satellites for space missions.
9+ YOE5+ years ERP/Syteline/LN experience; manufacturing knowledge; SQL/T-SQL; ERP/Manufacturing background; bachelor’s or equivalent.
Infor SyteLine, Infor LN, Factory Track, SQL, T-SQL, Infor Mongoose, .NET, MS SQL Server, DevOps
1mo
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Senior Full Stack Engineer
Broomall or United States
$150k-$175k/yr RemoteFull Time
Xactus
Xactus: Provides verification and credit reporting for mortgage lenders.
7+ YOE7+ years professional software development experience with strong hands-on C#/.NET Framework and SQL Server; experience with Angular, TypeScript/JavaScript, Azure, CI/CD tools; strong communication and problem-solving skills.
C#, .NET Framework, .NET Core, ASP.NET Web Forms, Angular, TypeScript, JavaScript, SQL Server, Azure, Jenkins, Terraform, Terragrunt, HTML, CSS
1w
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Software Engineer III
Aberdeen, Maryland, United States
$120k-$140k/yr OnsiteFull Time
Techximius: Provides specialized IT and engineering services for defense missions.
4+ YOEProven experience with C#, .NET, VB.NET, ASP.NET, JavaScript, SQL; ECM and large-scale data/document migrations; API integrations; SQL Server/Oracle; Bachelor\u0002s degree; able to obtain DoD clearance; 4+ years experience.
C#, .NET, VB.NET, ASP.NET, JavaScript, PowerShell, SQL, SQL Server, Oracle, Hyland OnBase, Unity API, Brainware, ViewStar (Global360), Xamarin, Git, Enterprise Content Management (ECM)
9h
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Sr. Product Analyst - IT
Houston or Warrenville or Chicago or Baltimore or De Pere or Kennett Square
$114k-$127k/yr HybridFull Time
Constellation Energy
Constellation EnergyNASDAQ: CEG: Produces carbon-free electricity and supplies energy to customers.
5+ YOEBachelor's degree in computer science or related field with 5–8 years of relevant experience, or 9–12 years of relevant work experience; Agile, IT project leadership, application support, and strong analytical skills required.
C#, .NET, ASP, DevOps, Agile, SaaS, PaaS, IaaS, IP, DNS, DHCP
2d
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Tech Lead
Wilmington, Delaware, United States
HybridFull Time
CSC
CSC: Provides global business administration and compliance solutions.
8+ YOE8+ years designing and developing enterprise C#/.NET applications; strong architecture, cloud-native, EF Core, SQL Server, Git, CI/CD, AI-assisted development and LLM/RAG experience; mentoring and technical leadership skills.
C#, .NET, Blazor, React, Angular, Vue, Entity Framework Core, SQL Server, Git, CI/CD, Azure AI Foundry, Azure OpenAI Service, Azure Functions, Docker, Kubernetes, MediatR, Clean Architecture, CQRS, Fluxor, Polly, Playwright, Artillery, JMeter, K6, Locust, LLMs, RAG
1mo
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Vulcan Asset Management VAM Administrator
Havre De Grace, Maryland, United States
$22-$31/hr OnsiteFull Time
Vulcan Materials Company
Vulcan Materials CompanyNYSE: VMC: Produces construction aggregates, asphalt, and ready-mix concrete.
Bachelor's preferred (or equivalent experience). Strong problem-solving, teamwork, communication skills; experience with Oracle eBS/eAM, data analysis/visualization, project management, programming (Python, Go, JavaScript, PowerShell, C# .NET), SQL databases, Git and CI/CD/DevOps preferred.
Oracle eBS, eAM, Python, Go, Javascript, PowerShell, C# .NET, SQL Server, SQLite, T-SQL, Microsoft Excel, Tableau, Git, CI/CD, DevOps
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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Senior Syteline Developer I
Long Beach or Albuquerque or Middle River or Silver Spring or Littleton or Stennis Space Center
$115k-$130k/yr OnsiteFull Time
Rocket Lab
Rocket LabNASDAQ: RKLB: Designs and builds launch vehicles and satellite systems.
5+ YOE5+ years experience (or bachelor's +5 yrs; 9+ yrs w/o degree), Infor SyteLine/LN and Factory Track experience, T-SQL/SQL proficiency, manufacturing process knowledge, ERP customization and integration skills.
Syteline, LN, Factory track, Infor Mongoose Framework, .NET, MS SQL server, T-SQL
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
1w
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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 .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++
3mo
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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
2w
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Software Engineer
Philadelphia, Pennsylvania, United States
$65k-$102k/yr HybridFull Time
Noblis
Noblis: Nonprofit science, technology, and strategy firm supporting government missions.
0+ YOEBachelor's in engineering discipline; 0–3 years developing in C, C++, and/or C#; active or ability to obtain DoD Secret clearance; US citizenship and valid/obtainable US passport; ability to travel 10–20%.
Microsoft Visual Studio, Git, Microsoft Visio, Microsoft Access, Microsoft .NET Framework, C, C++, C#, SQL
2mo
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Design Specialist II
Atlanta or Des Moines or Charleston or St. Petersburg or Oklahoma City or Virginia Beach or Chicago or Huntsville or Wilmington or Westwood or Milwaukee or Charleston or Jackson or Columbus or Boston or Kansas City or Nashville or Grand Rapids or Charlotte or United States
RemoteFull Time
TELUS Health
TELUS HealthToronto Stock Exchange: T: Digital health and wellbeing solutions for individuals and organizations.
5+ YOE5+ years IT or system configuration/implementation experience; mandatory SQL skills (MS SQL Server Management Studio bonus); ability to read/interprete object-oriented code (Java, C#, Python); strong troubleshooting, technical analysis, and communication skills.
SQL, MS SQL Server Management Studio, Java, C#, Python, ASP.NET
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
1w
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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 federal government agencies.
3+ YOE3+ years SharePoint/Power Platform development experience, bachelor\u0002s degree, proficiency in .NET/C#/PowerShell/SQL Server and Microsoft Power Platform, active Secret clearance required.
.NET, C#, PowerShell, SQL Server, Microsoft SharePoint, Microsoft Power BI, Microsoft Power Apps, Power Pages, Power Automate
2w
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Senior Full Stack Data Engineer
West Chester, Pennsylvania, United States
OnsiteFull Time
Comcast
ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.
7+ YOEBachelor's preferred,5+ years full-stack/data engineering experience (7+ preferred),backend and frontend development,Power BI dashboards,API and microservices,Oracle/Mongo DB,Cloud Foundry,GitHub,ELK,Agile with Jira.
Power BI, Jira, Smartsheet, Java, Python, Node.js, React, Angular, Tailwind CSS, DotNet, REST, API Gateway, Mongo DB, Cloud Foundry, GitHub, GitHub Actions, ELK, Agentic AI, Open Spec SDD
1mo
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Lead AI Engineer
Berkeley Heights 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; 8+ years with Java/Spring Boot and microservices; 5+ years technical leadership; 4+ years CI/CD and cloud/container experience; 3+ years building LLM-powered applications; bachelor's in CS/engineering or equivalent.
Java, Spring Boot, .NET, Angular, Python, GitLab CI, Jenkins, OpenShift, Kubernetes, Docker, AWS, Azure, Google Cloud Platform, Anthropic Claude, OpenAI, M365 Copilot, OAuth2, JWT, TLS
3mo
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Lead Site Reliability Engineer
Wilmington, Delaware, United States
OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
5+ YOE5+ years software engineering experience; expertise in reliability, observability, CI/CD, containers; strong programming skills; able to lead incidents and mentor engineers.
Python, Java, .NET, Docker, Kubernetes, Terraform, Grafana, Dynatrace, Prometheus, Datadog, Splunk, Jenkins, GitLab
1w
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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