641 csharp jobs at 289 companies in Hempstead, NY

2d
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AI Engineer
Birmingham or Chicago or Fort Lauderdale or New York
$95k-$133k/yr HybridFull Time
OneStream
OneStreamNASDAQ: OS: AI-driven enterprise finance platform for unified planning and reporting.
1+ YOE1-3 years building/deploying production ML solutions, programming in Python/C++/C/CSharp/Java/Rust/Go, BS in CS/DS/EE/CE or equivalent, experience with APIs, cloud (Azure) preferred.
Python, C++, C, CSharp, Java, Rust, Go, Flask, FastAPI, Microsoft Azure
2mo
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.NET Fullstack Senior Developer - HYBRID (Parispanny, NJ, US)
Parsippany, New Jersey, United States
HybridFull Time
NTT DATA
NTT DATA: Global provider of IT and business consulting services.
7+ YOE7+ years enterprise web apps; 7+ years .NET Core full stack; 5+ years C#, Angular, SQL Server; 3+ years GCP Firebase/Firestore; 1+ year OpenShift
DOTNET_CORE, C#, Angular, SQL Server, SSIS, GCP, Firebase, Firestore, Azure DevOps, Git, VS, SonarQube, Netsparker/Invicti, JFrog, Cloud Platform (GCP or Azure), OIDC/JWT, Azure AD
1mo
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Sr. Healthcare Integrations Engineer (Copy)
New York City, New York, United States
$80k-$195k/yr RemoteFull Time
Imagen Technologies
Imagen Technologies: AI-enabled teleradiology practice and diagnostic software provider.
3+ YOEBS or comparable experience; 3+ years healthcare integrations with HL7 and DICOM; familiarity with HIPAA/ISO/SOC2; experience with EMR integrations, Mirth, InterSystems IRIS; programming in JavaScript, Python, C#, Java, or Cache preferred; strong communication and PM skills.
HL7, DICOM, EMR, Mirth, eRAD, Fluency, Studycast, InterSystems IRIS, JavaScript, Python, C#, Java, Cache, HIPAA, ISO, SOC2
1w
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Business Process Analyst, UiPath Developer - Associate/ Assistant Vice President
New York, New York, United States
$100k-$150k/yr HybridFull Time
iCapital
iCapital: A global fintech platform for alternative investment marketplace access.
3+ YOEBachelor's degree,3+ years business process analysis or RPA development,UiPath development experience,REFramework,SQL and API knowledge,experience with enterprise platforms and strong communication skills.
UiPath Studio, UiPath Orchestrator, UiPath Assistant, REFramework, UiPath Process Mining, Celonis, SAP, Salesforce, ServiceNow, SQL, Excel, API, Python, VB.NET, C#, Git, Docker, JIRA, Confluence, Postman, Microsoft Power Platform, AWS, REST, SOAP
2mo
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Software Engineer (C# .NET Framework/SQL Server) - Digitech - Remote
Chappaqua, New York, United States
RemoteFull Time
Digitech Computer
Digitech Computer: Provides billing software and revenue cycle management for EMS.
3+ YOE3-5 years of professional software engineering; strong C#, .NET Framework, SQL Server; remote work ability; Bachelor's in CS or related field.
C#, .NET Framework, SQL Server, Databases, Stored Procedures
3mo
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C# Developer
New York, New York, United States
$100k-$150k/yr OnsiteFull Time
Jefferies
JefferiesNYSE: JEF: Global investment banking and capital markets services provider.
3+ YOE3-5 years of C#/.NET full-stack development; SQL Server; REST/SOAP Web services; Unix/Linux scripting; OOD in .NET; hedge fund knowledge preferred.
C#, .NET, SQL Server, Web API, REST, SOAP, Unix, Linux, T-SQL, Stored Procedures, Geneva
1w
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Senior Director of Enterprise Application Services (EAS)
New York, New York, United States
$145k-$165k/yr HybridFull Time
City of New York
City of New York: Provides municipal services and administration for New York City.
10+ YOE5+ Mgmt10+ years enterprise application development and technology leadership with 5+ years senior leadership; expertise in Microsoft .NET/C#/SQL Server, Azure/AWS, cloud architecture, enterprise architecture, and vendor management; relevant architecture and cloud certifications preferred.
Microsoft .NET, C#, ASP.NET MVC, Web API, SQL Server, Azure, Azure App Service, Azure SQL Database, Azure Functions, Azure DevOps, Azure Active Directory, Azure Kubernetes Service (AKS), Microsoft Dynamics 365, Microsoft Power Platform, Power Apps, Power Automate, Power BI, Python, Node.js, PostgreSQL, Redis, Docker, Kubernetes, Linux, Git, NUnit, Selenium, SIEM
2mo
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Software Engineer II
Totowa, New Jersey, United States
$87k-$147k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
2+ YOEBachelor's in CS/CE with 2+ years software development or equivalent, experience with C++, C#, Python, RTOS (RedHat/RTLinux), electronic warfare systems, integration testing, and ability to obtain Secret clearance; U.S. person required.
C++, C#, Python, RedHat, RTLinux, TestStand, LabVIEW
3w
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Quantitative Developer
New York, New York, United States
$165k-$250k/yr OnsiteFull Time
Millennium Management
Millennium Management: Global alternative investment firm managing diverse investment strategies.
3+ YOE3+ years as a financial engineer/data scientist/quant developer; strong Python and/or C++, Java, C#; SQL and PL-SQL/T-SQL; experience with Airflow, ETL, Linux, GitHub, CI/CD; Ph.D. or Masters in a quantitative field.
Python, C++, Java, C#, Airflow, SQL, PL-SQL, T-SQL, Linux, GitHub, CI/CD, ETL
2w
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FTSE Software Engineering & Data Engineering Opportunities
Charlotte or New York City
OnsiteFull Time
London Stock Exchange Group
London Stock Exchange GroupLondon Stock Exchange: LSEG: Provides financial market infrastructure and global data analytics services.
Experience with Java/Python/C++/C#, cloud platforms (AWS/Azure), CI/CD and automation, AI-assisted development tooling, strong problem-solving, and a bachelor's in CS/Engineering or equivalent experience.
Java, Python, C++, C#, AWS, Azure, CI/CD, AI-assisted development tooling
4w
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Lead Software Engineer - C#/.Net - Trading industry exp-Neovest
New York, New York, United States
$152k-$215k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
5+ YOE5+ years applied software engineering experience, hands-on C#/.NET development, capital markets/trading domain knowledge, cloud-native and multithreaded application experience, message-distribution (RabbitMQ/Kafka), CI/CD and secure resilient design, and experience leading teams and adopting AI-assisted engineering practices.
C#, .NET, RabbitMQ, Kafka
1mo
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Senior Systems Test Engineer (Hybrid)
Wayne, New Jersey, United States
$106k-$180k/yr HybridFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
4+ YOEBachelor's degree (or equivalent) with ~4 years experience; ability to obtain Secret clearance and U.S. person/citizen requirement; experience with LabVIEW, TestStand, C#, RF test instrumentation; developing test procedures and instrument drivers.
LabVIEW, TestStand, C#, Network Analyzer, Spectrum Analyzer, Signal Generator
1mo
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Vice President, Lead Software Engineer
New York, New York, United States
$208k-$210k/yr HybridFull Time
Morgan Stanley
Morgan StanleyNYSE: MS: Global financial services firm providing investment and wealth management.
3+ YOEMaster's in Software/Computer Engineering or related; 3+ years Java/Scala development experience; proficiency with Java, SQL, JSON, Spring, Scala, Python, C#, Sybase, and Agile; knowledge of data structures and algorithms.
Java, SQL, JSON, Agile, Sybase, Treadmill, Spring, Scala, Python, C#
1mo
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Distinguished AI Engineer (Agentic AI Platform)
San Francisco or McLean or Cambridge or San Jose or New York City
$294k-$335k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: Financial services offering credit cards, banking, and loans.
6+ YOEBachelor's or Master's in CS/Engineering/AI with 6–8+ years building and deploying scalable AI/ML systems; strong programming in Python/Go/Scala/Java and experience with agentic frameworks, cloud platforms, and LLMs.
Python, Go, Scala, Java, C++, C#, Golang, LangGraph, AutoGen, Semantic Kernal, Semantic Kernel (Microsoft), CrewAI, LlamaIndex, LangChain, AWS, Google Cloud, Azure, Google Cloud Vertex AI, Amazon SageMaker, Azure Machine Learning, K8s, Helm charts, CRDs, SDK, CLI, VectorDBs, RAG, LLM Inference, Similarity Search
1mo
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Infrastructure Engineer — Hyper- V
Woodinville or Palo Alto or New York or New Jersey
OnsiteContract
Redapt
Redapt: Provides integrated data center infrastructure and cloud computing solutions.
5+ YOE5+ years infrastructure engineering experience with enterprise Microsoft Hyper-V, PowerShell automation, Windows Server administration, storage/networking performance analysis, infrastructure automation (DSC/SCCM/Ansible), and a technical bachelor's degree.
Microsoft Hyper-V, PowerShell, WMI, C#, .NET 8, Windows Server, PowerShell DSC, SCCM, Ansible, CI/CD, elbencho, VMFleet, diskspd, fio, Qualys, Microsoft System Center (VMM, SCOM, SCCM), VMware ESXi, KVM, Windows Server Failover Clustering (WSFC), Storage Spaces Direct (S2D), SET
1w
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Model/Anlys/Valid Sr Analyst
New York, New York, United States
$160k-$175k/yr HybridFull Time
Citi
CitiNYSE: C: Providing global banking, investment, and wealth management services.
3+ YOEMaster's in quantitative field and 3 years experience in derivative pricing model development; expertise in interest rate modelling, Monte Carlo and PDE solvers, stochastic calculus, C++ and Python.
C++, C#, .NET, Python, SQL
3mo
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Lead Software Engineer (.Net Engineer)
Jersey City or Dallas
HybridFull Time
DTCC
DTCC: Provides post-trade infrastructure for the global financial services industry
6+ YOEMinimum 6 years of related experience; Bachelor's degree preferred or equivalent experience.
C#, .NET, SQL, Agile, CI/CD, Automated Testing, Distributed Systems, Microservices
3w
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Senior Agentic AI Consultant (Claude Code)
New York City or Arizona or California or Colorado or Delaware or Florida or Georgia or Illinois or Indiana or Massachusetts or Maryland or Minnesota or North Carolina or New Jersey or New York or Pennsylvania or Tennessee or Texas or Utah or Virginia or United States
HybridFull Time, Contract
FDM Group
FDM GroupLondon Stock Exchange: FDM: Provides IT consulting, technical training, and staff augmentation services.
7+ YOE7+ years consulting/technology experience; hands-on Agentic AI and Claude Code experience; deliver AI solutions, multi-agent workflows, RAG, governance, cloud, APIs, and stakeholder engagement in regulated industries (insurance).
Claude Code, Anthropic Claude, Retrieval-Augmented Generation (RAG), Python, TypeScript, JavaScript, C#, Java, AWS, Azure, GCP, Git, CI/CD
4d
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Senior Software Engineer (Insurance Tech)
New York or Chicago
$215k-$230k/yr RemoteFull Time
EvolutionIQ
EvolutionIQ: AI-powered claims guidance platform for insurance carriers.
5+ YOE5+ years engineering experience, strong Python and TypeScript/JavaScript skills, relational database design, experience delivering end-to-end features, comfortable using AI-assisted development tools.
Python, TypeScript, JavaScript, C#, .NET
1w
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Full-Stack Developer
Parsippany, New Jersey, United States
$99k-$115k/yr OnsiteFull Time
Marotta Controls
Marotta Controls: Designs and manufactures precision control systems for aerospace and defense.
3+ YOE3+ years SDLC experience, AWS microservices and cloud migration expertise, Java/Python/C#/Angular/React, RESTful APIs, SQL, Git, Spring/Spring Boot, containerization (Docker,ECS,Kubernetes), Bachelor’s degree, US citizenship required.
Amazon Web Services (AWS), AWS Lamda, Relational Database Service (RDS), Lake Formation, AWS ECS, Docker, Kubernetes, Java, Python, C#, Angular, React, Enterprise SQL, Git, GitHub, Spring Framework, Spring Boot, RESTful APIs, JIRA