Top C# Jobs in NYC, NY

Reposted 12 Days AgoSaved
In-Office
New York, NY
175K-200K Annually
Junior
175K-200K Annually
Junior
Machine Learning • Business Intelligence
Design and maintain high-performance systems for algorithmic trading, optimizing data pipelines and collaborating with researchers and traders to enhance trading systems.
Top Skills: C++Python
Reposted 3 Days AgoSaved
Remote or Hybrid
New York, NY
Senior level
Senior level
Mobile • Security • Software • Cybersecurity
The Senior Software Engineer will develop and maintain client-side applications, improve installation workflows, and ensure enterprise deployment support for cybersecurity products.
Top Skills: C#JAMFMdmsMicrosoft Endpoint Configuration ManagerMicrosoft IntuneRustWorkspace One
Reposted 13 Days AgoSaved
Hybrid
New York, NY
180K-290K Annually
Senior level
180K-290K Annually
Senior level
Blockchain • Software • Cryptocurrency • Web3
As a Senior Software Engineer, you will design and develop key components of Stellar Core, enhance blockchain technology, and collaborate with engineering teams.
Top Skills: C++Rust
5 Days AgoSaved
Remote
New York, NY
175K-185K Annually
Expert/Leader
175K-185K Annually
Expert/Leader
HR Tech • Legal Tech • Software • Consulting
Lead technical direction for a major product domain, reduce architectural debt, mentor engineers, standardize AI-agent workflows, and design scalable backend solutions integrating LLMs and cloud services. Drive cross-team RFCs, cookbook standards, and adopt agentic AI tooling while balancing security, quality, and delivery.
Top Skills: .NetAWSAzureC#Ci/CdClaude CodeDockerGithub CopilotGoJavaKubernetesLlm ServicesMicrosoft Sql ServerPostgresPython
Reposted 15 Days AgoSaved
In-Office
New York, NY
110K-150K Annually
Senior level
110K-150K Annually
Senior level
Financial Services
Design, build, and maintain scalable .NET/C# full-stack applications and integrations for Private Wealth. Collaborate with business partners, participate in SDLC, address production issues, lead design reviews, optimize platforms, and mentor junior developers while using Agile practices and AI-assisted development tools.
Top Skills: .Net (Including .Net 6+)AngularC#JSONMicrosoft Sql ServerRestSoapXML
Reposted 6 Days AgoSaved
Remote
New York, NY
Senior level
Senior level
Information Technology • Professional Services • Analytics • Consulting
The Senior C# Developer will lead AI enablement by transforming APIs into an Agent Mesh using C# and the MCP, ensuring secure AI interactions through Gravitee management.
Top Skills: .NetC#Gravitee Api ManagementModel Context Protocol (Mcp)Oauth 2.1OpenapiPythonSwagger
17 Days AgoSaved
In-Office
New York, NY
225K-300K Annually
Senior level
225K-300K Annually
Senior level
Fintech • Financial Services
Lead design and global rollout of a high-performance market data and execution Core Platform. Build low-latency ingestion, normalization, distribution, and execution components. Develop tools for quants and traders, own lifecycle from deploy to production profiling and optimization, and collaborate closely with engineers, quants, and traders to iterate on requirements and platform improvements.
Top Skills: Algorithmic Trading SystemsC++Cpu Cache OptimizationLock-Free ConcurrencyLow-Latency NetworkingMarket Data IngestionMemory LayoutMultithreadingOrder Book Construction
17 Days AgoSaved
In-Office
New York, NY
185K-225K Annually
Senior level
185K-225K Annually
Senior level
Fintech • Financial Services
Build and optimize low-latency C++ trading systems used across global venues. Implement exchange connectivity, trading algorithms, testing, monitoring, and performance optimizations. Collaborate with researchers, traders, and engineers to refine requirements, troubleshoot production issues, and deploy reliable, high-performance trading platform components.
Top Skills: C++Exchange SdksFixHTTPKernel BypassPythonRustTlsTypescriptWebsocket
Reposted 17 Days AgoSaved
In-Office
New York, NY
Mid level
Mid level
Information Technology • Software • Consulting
The role involves developing and enhancing trade and position management infrastructure, building interfaces, and participating in trade processing.
Top Skills: .NetC#
Reposted 17 Days AgoSaved
In-Office
New York, NY
815-815 Hourly
Mid level
815-815 Hourly
Mid level
Information Technology • Software • Consulting
The role involves developing server-side C# applications for trading systems, particularly focusing on risk management and derivatives market data.
Top Skills: C#Sql Analysis ServicesSQL Server
Reposted 20 Days AgoSaved
In-Office
New York, NY
260K-260K Annually
Junior
260K-260K Annually
Junior
Financial Services
The C++ Quant Developer will work on fixed income electronic trading systems, focusing on software performance, automated quoting, execution, and risk management.
Top Skills: C++LinuxPython
Reposted 20 Days AgoSaved
In-Office
New York, NY
Mid level
Mid level
Information Technology • Software
Seeking a C++ Developer with at least 3 years of experience in software development, strong database skills, and knowledge of data structures and algorithms.
Top Skills: CC++
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Reposted 20 Days AgoSaved
In-Office
New York, NY
Mid level
Mid level
Information Technology • Software
The role involves software development utilizing C/C++, with a focus on data structures, algorithms, and database management. It values communication and analytical skills, as well as experience throughout the software development lifecycle.
Top Skills: C++Solr
Reposted 20 Days AgoSaved
In-Office
New York, NY
Mid level
Mid level
Information Technology • Software
The C++ Developer will work on software development, enhance mission-critical software, and manage requirements through the full development lifecycle.
Top Skills: AlgorithmsC++Data StructuresSolr
Reposted 21 Days AgoSaved
In-Office
New York, NY
Senior level
Senior level
Information Technology • Software • Consulting
Seeking a senior C/C++ developer with financial experience to design and implement features for a derivative pricing platform. Responsibilities include project management, bug fixing, and communication with product managers.
Top Skills: C#C++
Reposted 21 Days AgoSaved
In-Office
New York, NY
180K-270K Annually
Senior level
180K-270K Annually
Senior level
Financial Services
Develop low latency algorithmic trading strategies, enhancing systems for market data and order execution while collaborating with investment professionals.
Top Skills: BoostC++GccLinuxStl
Reposted 21 Days AgoSaved
In-Office
New York, NY
180K-270K Annually
Junior
180K-270K Annually
Junior
Financial Services
The role involves enhancing market access systems for low-latency crypto trading, collaborating with traders and systems engineers, and optimizing performance.
Top Skills: C++Ci/CdCloud EnvironmentsLinux
12 Days AgoSaved
Remote
New York, NY
Senior level
Senior level
AdTech • Agency • Marketing Tech
Design, build, and maintain backend workflow orchestration and analyzer integrations for the ECL platform. Manage analyzer state transitions, runtime event handling, and legacy modernization; extract shared .NET libraries, collaborate with integration and QA, and support knowledge transfer.
Top Skills: .Net.Net Framework 4.XAzure Service BusC#Event-Driven MessagingState MachinesWorkflow Orchestration
Reposted 13 Days AgoSaved
Remote
New York, NY
Senior level
Senior level
Artificial Intelligence • Blockchain • Digital Media • Information Technology
Develop and maintain .NET Core trading systems for Linux with service-oriented architecture and multi-threaded processing. Implement async, lock-free structures and distributed systems, write unit and integration tests, optimize SQL queries, design data structures and algorithms, and work with communication protocols (SignalR, gRPC, HTTP). Use PostgreSQL, Docker, and AWS in the deployment stack.
Top Skills: .Net CoreAsp.Net CoreAWSC#DockerGrpcHttp(S)JSONMstestNatsNunitPostgresProtobufSignalrSQLXMLXunit
Reposted 13 Days AgoSaved
Remote
New York, NY
141K-208K Annually
Mid level
141K-208K Annually
Mid level
Database • Analytics
Contribute to and optimize the performance of ClickHouse, assist with debugging, collaborate with teams, and engage with the open-source community.
Top Skills: C++KubernetesTcp/IpUnix/Linux
Reposted 23 Days AgoSaved
In-Office
New York, NY
150K-250K Annually
Mid level
150K-250K Annually
Mid level
Fintech • Financial Services
The C++ Developer will implement, test and deploy features for a high-frequency trading system, optimize performance, and debug issues.
Top Skills: BoostC++GitLinuxStl
Reposted 23 Days AgoSaved
In-Office
New York, NY
175K-275K Annually
Mid level
175K-275K Annually
Mid level
Machine Learning • Software • Financial Services • Quantitative Trading
The engineer will develop low latency trading systems, optimize performance, and improve frameworks. Collaboration with traders and researchers is key.
Top Skills: AssemblyC++LinuxNetwork Protocols
Reposted 14 Days AgoSaved
In-Office or Remote
New York, NY
Senior level
Senior level
Database • Financial Services
Develop and optimize ultra-low-latency, high-performance trading infrastructure in modern C++. Implement and tune order execution, market data connectivity, multi-threaded systems, and risk modules. Profile and benchmark real-time systems, collaborate with quants and traders, and maintain robust, fault-tolerant continuous trading operations.
Top Skills: BenchmarkingCC++High-Performance ComputingLinuxLow-Latency SystemsMarket Data ConnectivityMultithreadingNetworkingOrder EntryPerformance TuningProfilingReal-Time SystemsTcpUdp
Reposted 24 Days AgoSaved
In-Office
New York, NY
Mid level
Mid level
Information Technology • Business Intelligence • Consulting
The C++ Developer will design, develop, and maintain applications, particularly in C++ on Unix, and perform process analysis and improvement.
Top Skills: C++PythonRSQL ServerUnix
Reposted 24 Days AgoSaved
Hybrid
New York, NY
120K-130K Annually
Senior level
120K-130K Annually
Senior level
Fintech • Software • Financial Services
The Senior Software Developer will design high performing, scalable server systems, develop APIs, and enhance web security while working on challenging projects.
Top Skills: C++Distributed SystemsSQLWeb Technologies
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