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48 sr net developer jobs at 31 companies in Lancaster, PA

6d
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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
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1w
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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
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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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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
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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
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1mo
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Check out this job at Deloitte, Senior Full Stack .Net Developer
Gilbert or Lake Mary or Mechanicsburg
HybridFull Time
Deloitte
Deloitte: Provides professional audit, consulting, advisory, and tax services.
Bachelor's or equivalent; Agile experience; C#, .NET 8.0+, Microsoft SQL Server 2022+, Angular 18+, TypeScript 5.4+; GitLab or Harness CI/CD; Active Top Secret clearance; hybrid work near Gilbert, Lake Mary, or Mechanicsburg; travel 0-10%; U.S. work authorization required.
C#, .NET 8.0, Microsoft SQL Server 2022, Angular 18, TypeScript 5.4, GitLab, Harness, Amazon Web Services, Okta, Grafana, Rafay, Power Platform
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3w
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Sr. Software Developer
Mechanicsburg, Pennsylvania, United States
$100k-$105k/yr OnsiteContract
Connected Logistics
Connected Logistics: Provides IT and logistics services for government defense agencies.
10+ YOE10+ years professional software development experience; strong expertise with C#, VB.NET, .NET 8+, ASP.NET Core, JavaScript and modern front-end frameworks, SQL/Entity Framework, microservices, messaging, Git; U.S. citizen with current T3 investigation; onsite work required.
C#, VB.NET, .NET 8+, ASP.NET Core, JavaScript, React, Angular, SQL, Entity Framework, NServiceBus, RabbitMQ, Git
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2mo
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Software Engineer Sr, Level 3
King of Prussia, Pennsylvania, United States
OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Experience with object-oriented development (Java, JavaScript/Node.js, .NET/C#), familiarity with GitLab, Kubernetes, Docker, Rancher, CI/CD and testing practices; US citizen able to obtain and maintain TS/SCI clearance.
Java, JavaScript, Node.js, .NET, C#, GitLab, Kubernetes, Docker, Rancher, git, Jenkins
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2w
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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
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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
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1mo
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MuleSoft Developer II
Harrisburg, Pennsylvania, United States
HybridFull Time
PSECU
PSECU: Member-owned credit union providing banking and financial services.
5+ YOE5+ years software development; strong MuleSoft, .NET (C#), and JavaScript experience; experience with MuleSoft CloudHub, API-led design and OpenAPI (OAS); REST, JSON/XML, DataWeave; CI/CD and Git; Bachelor's in Computer Science/Engineering required.
MuleSoft Anypoint Platform, Mule 4, MuleSoft CloudHub, API Manager, Exchange, Runtime Manager, .NET, C#, JavaScript, OpenAPI Specification (OAS), DataWeave, CI/CD, Git, REST, JSON, XML
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1w
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Software Engineer II
Wilmington, Delaware, United States
OnsiteContract
CTG
CTG: Provides IT services and digital transformation solutions to businesses.
5+ YOE5+ years software development with Angular and .NET, C#, Azure, DevOps and CI/CD experience; strong SOLID and testing practices; ability to lead modernization and mentor junior developers.
Angular, .NET Framework, .NET Core, C#, Web APIs, Entity Framework Core, Microsoft SQL Server, Azure, DevOps, CI/CD, GitLab, ASP.NET Web Forms, PrimeNG, Kendo UI
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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
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2w
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Lead Site Reliability Engineer
Wilmington or Jersey City or Singapore
$152k-$215k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
5+ YOE5+ years SRE experience, 10+ years in regulated industry preferred; cloud experience (AWS/Azure/GCP); programming (Python/Java/.Net); observability and CI/CD tool experience; incident leadership and mentoring skills.
AWS, Azure, GCP, Python, Java Spring Boot, .Net, Grafana, Dynatrace, Prometheus, Datadog, Splunk, Jenkins, GitLab, Terraform, ECS, Kubernetes, Docker
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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)
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5d
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Principal Software Engineer
Lititz or United States
OnsiteFull Time
Listrak
Listrak: SaaS platform for unified retail marketing and cross-channel automation
12+ YOE12+ years software engineering experience; expert in scalable distributed systems, full-stack development, front-end frameworks, cloud-native apps, and technical leadership.
Vue.js, TypeScript, JavaScript, HTML, CSS, C#, .NET, Java, AWS, Kafka, Spark, Hadoop, Presto, GitHub Copilot, Claude Code, Codex
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4d
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Angular/NodeJS Engineer
Harrisburg or United States
$85k-$117k/yr RemoteFull Time
Syms Strategic Group
Syms Strategic Group: Provides IT and professional services to federal government agencies.
8+ YOE8+ years software development with Java and/or NodeJS, hands-on Angular, AWS cloud experience, RESTful API design for healthcare EDI, Git/GitHub, unit/integration testing, US citizenship and ability to obtain Public Trust clearance.
Java, NodeJS, Angular, C#, .Net, AWS, API Gateway, Lambda, S3, CloudWatch, Docker, ECS, EKS, Git, GitHub, JIRA, JUnit, Jest, Microsoft Teams, Electronic Data Interchange X.12 (EDI), XML, JSON
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3w
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Manufacturing IT Support Engineer
Blue Ball, Pennsylvania, United States
$90k-$100k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
8+ YOE.Net Core/.Net Framework, ASP .Net, VB.Net, SCADA, SQL, Oracle, ServiceNow experience; stakeholder management, incident triage, SLA adherence; bachelor in computer science and 8+ years experience preferred.
.Net, .Net Core, .Net Framework, ASP .Net, VB.Net, SCADA, SQL, Oracle, ServiceNow
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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
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5d
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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
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