87 sr net developer jobs at 62 companies in Philadelphia, PA
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Sr .NET Developer
King of Prussia, Pennsylvania, United States
$68-$70/hr HybridContract
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
2d
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Senior .Net Engineer
Philadelphia, Pennsylvania, United States
HybridFull Time
7+ YOERequires 7+ years of full-stack web development, C#, TypeScript, .NET, front-end frameworks, APIs, databases, testing, CI/CD, Docker, Kubernetes, and U.S. citizenship.
C#, TypeScript, .NET Framework, .NET 5+, Angular, React, Vue, nHibernate, Entity Framework, SQL Server, GitHub Actions, Azure DevOps, Docker, Kubernetes, AWS, Azure, HL7, FHIR, EHRs
3w
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Senior .NET Developer
Crum Lynne or Chicago or Reston or Boca Raton
$90k-$150k/yr RemoteFull Time
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
2w
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Senior .NET Developer
Philadelphia, Pennsylvania, United States
OnsiteFull Time
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
2mo
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Backend .NET Engineer
Philadelphia, Pennsylvania, United States
OnsiteFull Time
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
3mo
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Sr. Software Engineer
Philadelphia or New Jersey or Delaware or New York or Maryland or Florida or South Carolina or Texas or Virginia or Georgia
HybridFull Time
FreedomPay: A fast-growing payments and commerce technology delivering secure solutions globally.
7+ YOE7+ years in application development and testing; strong web, SPA, and backend skills; security-focused; Agile experience; strong English communication.
.NET, SQL Server, MVC, jQuery, React, Angular, Redux, TypeScript, JWT, Git, HTML, CSS, Websockets
2mo
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Sr. Software Engineer
Camden, New Jersey, United States
$116k-$127k/yr HybridFull Time
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
2d
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Software Developer / Senior Software Developer (C# / .NET)
Mount Laurel, New Jersey, United States
$120k-$150k/yr RemoteFull Time
5+ YOERequires 5+ years of software engineering experience, C# or Java, .NET, REST APIs, SQL Server, PostgreSQL, Entity Framework, Git, Docker, Azure, and strong analytical and communication skills.
C#, .NET, ASP.NET Core, REST APIs, Entity Framework, Microsoft SQL Server, PostgreSQL, Git, Docker, Microsoft Azure, Azure App Services, Azure SQL, Azure Storage, Azure Functions, Azure Key Vault, Azure DevOps, Docker Compose, OAuth2, OpenID Connect, JWT, Microsoft Entra ID, CI/CD, Object-Oriented Programming (OOP), SOLID Principles, Design Patterns, Unit Testing, Agile/Scrum, Code Reviews, Claude Code
2mo
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Senior AWS .Net Lead (49397)
New Jersey, New Jersey, United States
OnsiteFull Time
8+ YOE8-10 years of experience in software development with .NET, AWS, lead responsibilities; strong C#, ASP.NET, .NET Core; front-end skills (HTML, CSS, JavaScript, React/Angular); mentoring and CI/CD experience.
C#, ASP.NET, NET Core, HTML, CSS, JavaScript, React, Angular, Entity Framework, CI/CD, AWS
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.Net Full Stack
Pennington, New Jersey, United States
$95k-$115k/yr OnsiteFull Time
10+ YOE.NET 8 and Angular experience, 10+ years software development, bachelor in computer science, API and database (SQL Server/PostgreSQL) skills, CI/CD and testing experience, knowledge of authentication (JWT/OAuth).
.NET 8, ASP.NET Core, ASP.NET, Angular, TypeScript, HTML5, CSS3, Bootstrap, Angular Material, JWT, OAuth, SQL Server, PostgreSQL, Docker, Kubernetes, Azure, AWS, Azure DevOps, Jenkins, GitHub Actions, NgRx, RxJS
2mo
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Sr. Full Stack Software Developer (Camden, NJ, US)
Camden, New Jersey, United States
$120k-$150k/yr OnsiteFull Time
10+ YOESenior-level full-stack developer with 10+ years in enterprise environments; strong C#, .NET, REST, front-end tech, SQL Server, security, and architecture leadership.
C#, NET Core, NET Framework, REST, Blazor, HTML5, CSS3, JavaScript, Bootstrap, SQL Server, OAuth2, OIDC, Azure AD/Entra ID, Git, CI/CD, Docker, CQRS
2w
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Lead Full Stack Engineer (.Net, Vue/React) - Fully Remote
United States or Philadelphia
RemoteFull Time
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
5d
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Lead Software Engineer - Murex
Philadelphia or Denver or Cedar Rapids
$111k-$135k/yr HybridFull Time
5+ YOEBachelor's degree or equivalent experience; 5+ years of software engineering; Murex development; Java, .NET/C#, SQL, integrations, ETL, reporting, troubleshooting, and derivatives lifecycle knowledge.
Murex, MxML, SQL Server, Oracle, SSIS, AWS Glue, SSRS, Microsoft Excel, Visual Studio, Git, Bitbucket, Maven, Jenkins, Nexus, SQL Management Studio, NUnit, Docker, OpenShift, Kubernetes, Java, .NET, C#, Python, Swagger, OpenAPI, Kafka, REST APIs, Spring Framework, J2EE, Control-M, Kiro, Microsoft Windows Server, Linux, Unix, Excel VBA
1mo
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Lead Power Platform Developer
Philadelphia, Pennsylvania, United States
HybridFull Time
10+ YOE10+ years Microsoft Dynamics 365 and Power Platform experience, hands-on Java/Python/.NET development, CCaaS/Omnichannel familiarity, bachelor's degree, strong project leadership and communication skills; Dynamics 365 certification preferred.
Microsoft Dynamics 365, Microsoft Power Platform, CCaaS, Omnichannel, Java, Python, .NET
1mo
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Dynamics 365 Developer (Remote Opportunity)
Philadelphia or Pennsylvania or United States
RemoteFull Time
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
3w
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Experienced Software Developer
Philadelphia, Pennsylvania, United States
$124k-$237k/yr HybridFull Time
5+ YOE5+ years building enterprise applications using C#/.NET, cloud-native (Azure), microservices, SQL/NoSQL, Kubernetes/Docker, LLM/RAG experience, strong design and communication skills.
C#, .NET, C++, JavaScript, Microsoft Azure, SQL, NoSQL, Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), Model Context Protocol (MCP), Agent2Agent (A2A), Semantic Kernel, Microsoft AI Foundry, Microsoft Agent Framework (MAF), GraphRAG, Kubernetes, Docker, CI/CD
2mo
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MES Software Engineer/Data Analyst
Breinigsville, Pennsylvania, United States
$110k-$176k/yr OnsiteFull Time
6+ YOEBS+8 yrs or MS+6 yrs in relevant field; experience developing and supporting MES platforms; programming in SQL, Python, C#, JavaScript, .NET; knowledge of REST APIs, OPC UA, MQTT, PLC/SCADA integrations; AI/ML and manufacturing analytics experience.
Siemens Opcenter, Rockwell FactoryTalk, Ignition, AVEVA/Wonderware, SAP ME/MII, Tulip, Critical Manufacturing, Apriso, SQL, Python, C#, JavaScript, .NET, REST APIs, OPC UA, MQTT, PLCs, SCADA, IoT, AWS, Azure, Google Cloud, SPC
1w
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Senior Software Developer
Philadelphia or United States
$110k-$135k/yr RemoteFull Time
5+ YOE5+ years professional software development, BS preferred, strong experience with Angular, .NET Core/ASP.NET Core, C#, TypeScript, JavaScript, HTML/CSS, PostgreSQL, API design, OOP and architecture.
Angular, ASP.NET Core, C#, PostgreSQL, TypeScript, JavaScript, HTML/CSS
3d
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Senior Integration Developer
Whitemarsh Township, Pennsylvania, United States
HybridFull Time
7+ YOEBachelor’s degree or equivalent; 7+ years in software design and development, 5+ years on cloud platforms and .NET, and hands-on Boomi integration and API Management experience. Azure, Boomi certification, and B2B/EDI experience preferred.
Boomi, Boomi API Management, Epicor Eclipse ERP, SAP, CRM, Microsoft Azure, C#, OAuth 2.0, Jira, Confluence, XML, JSON, XSLT, SQL, CSV, SFTP, HTTPS, EDI, DevOps, CI/CD, Agile, Scrum
2w
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Front-End Developer
Miami or Delaware or Atlanta or Philadelphia or Austin or Houston or Dallas or Salt Lake City or Phoenix or Charlotte
HybridFull Time
5+ YOE5+ years software development experience with C#, .NET 10, ASP.NET, SQL Server, DDD, CI/CD (Azure DevOps), PowerShell, containerization (Docker), Linux/Windows; mentoring and enterprise application experience required.
C#, .NET 10, ASP.NET, SQL Server, Entity Framework, Dapper, Azure DevOps, PowerShell, Linux, Windows Server, Docker, React, Python, WebSockets, SignalR, RabbitMQ, Kafka, Azure Service Bus, Git, Blazor Server
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