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Top C# Jobs in Denver & Boulder, CO

Reposted 11 Days AgoSaved
In-Office
Colorado
90K-120K Annually
Junior
90K-120K Annually
Junior
Aerospace • Artificial Intelligence • Hardware • Machine Learning • Software • Defense • Manufacturing
The role involves designing and implementing simulation software for spacecraft using C++ and collaborating on algorithms for orbital mechanics and control.
Top Skills: C++Python
Reposted 19 Days AgoSaved
Remote or Hybrid
Colorado
170K-230K Annually
Expert/Leader
170K-230K Annually
Expert/Leader
HR Tech • Information Technology • Professional Services • Sales • Software
The Senior Backend Engineer will develop core mechanisms for financial planning, lead backend development, mentor peers, and manage the full development cycle.
Top Skills: AWSAws GlueC#JavaMySQLPostgresPysparkScalaSinglestore
Reposted 10 Hours AgoSaved
Remote
Colorado
Senior level
Senior level
Fintech • Software
You will develop and maintain components of the LLVM based toolchain, collaborating with the community while ensuring platform-specific optimizations and tests.
Top Skills: BashC++ClangCmakeGccLlvmPython
Reposted YesterdaySaved
Easy Apply
Remote
Colorado
Easy Apply
Mid level
Mid level
Software
The Core Software Engineer will develop platform technologies, focusing on applications using C++ or Rust, and ship cross-platform libraries.
Top Skills: C#C++RustSwift
Reposted YesterdaySaved
Easy Apply
Remote
Colorado
Easy Apply
160K-240K Annually
Senior level
160K-240K Annually
Senior level
Sports
Design and develop a data platform for sports entertainment, deliver features, maintain code quality, and research new technologies in a collaborative environment.
Top Skills: AWSAzureC++CdkDockerEcsFlinkGCPKafkaKinesisKubernetesTerraform
Reposted YesterdaySaved
Remote
Colorado
128K-176K Annually
Senior level
128K-176K Annually
Senior level
Information Technology • Security • Cybersecurity
As a Senior Software Engineer, you will lead the development lifecycle for Windows Identity features, focusing on low-level Windows programming and product stability, while collaborating across teams to solve complex cybersecurity challenges.
Top Skills: Active DirectoryCC++EdrEppWin32 ApiWindows Os Internals
Reposted 2 Days AgoSaved
In-Office
Colorado
124K-199K Annually
Senior level
124K-199K Annually
Senior level
Fintech • Information Technology • Payments
The Staff Software Engineer will design, build, maintain, and support applications on HP Nonstop platforms, focusing on Visa Debit Processing Switch and related applications. Responsibilities include coding, automating tasks, collaborating with teams, and ensuring system integrity and efficiency.
Top Skills: CCobolEnscribeNonstop SqlPathwayScobolTaclTal
Reposted 2 Days AgoSaved
Remote
Colorado
160K-342K Annually
Senior level
160K-342K Annually
Senior level
Aerospace • Artificial Intelligence • Machine Learning • Robotics • Software
Join the Hivemind perception team to develop software solutions for GPS-denied navigation and object detection. Enhance SDK capabilities, lead design reviews, and mentor engineers.
Top Skills: C++ (11 Or Greater)Ci/CdGitLinuxTest-Driven Development
Reposted 3 Days AgoSaved
Easy Apply
Remote
Colorado
Easy Apply
Senior level
Senior level
Artificial Intelligence • Computer Vision • Cybersecurity
Design and build performance-critical components in C++. Require expertise in multithreaded systems, CI/CD pipelines, and GTK integration, as well as Python scripting.
Top Skills: C++CmakeConanGithub ActionsGtkLinuxPython
Reposted 3 Days AgoSaved
In-Office
Colorado
Mid level
Mid level
AdTech • Digital Media
Design, implement, and optimize scalable backend software solutions. Collaborate with team members and uphold coding standards while troubleshooting and maintaining software performance.
Top Skills: AWSC++GoInfrastructure As CodeKafkaMySQLNode.js
Reposted 4 Days AgoSaved
Remote
Colorado
112K-140K Annually
Senior level
112K-140K Annually
Senior level
Software
The Sr. Software Engineer will develop scalable cloud-native APIs using .NET, lead architectural discussions, and mentor team members while improving core system components.
Top Skills: .Net CoreAWSJavaKubernetesOpentelemetryPostgres
Reposted 6 Days AgoSaved
Remote
Colorado
5-5 Annually
Senior level
5-5 Annually
Senior level
Cloud • Digital Media • Hardware • News + Entertainment • Software
Seeking a Senior Software Developer for developing high-performance distributed systems for media workflows, including video transcoding and content delivery.
Top Skills: .Net CoreC#C++GraphQLGrpcLinuxMySQLPostgresRest ApisSQL ServerWebrtcWebsockets
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Reposted 6 Days AgoSaved
Easy Apply
Remote
Colorado
Easy Apply
15-150 Annually
Mid level
15-150 Annually
Mid level
Artificial Intelligence • Information Technology • Internet of Things
As an AI Tutor - Objective-C, you will review and improve AI-generated Objective-C code, ensuring correctness and adherence to best practices while solving development challenges.
Top Skills: CocoaFoundationObjective-CUikit
7 Days AgoSaved
Remote
Colorado
Senior level
Senior level
Cloud • Security
As a Senior C# Software Engineer, you'll be part of a collaborative team developing software for cloud-hosted and on-premises applications, focusing on the full software development lifecycle and mentoring junior members.
Top Skills: .Net CoreAngularAWSAzureC#GitMs SqlRest ApisSoapTypescript
7 Days AgoSaved
In-Office or Remote
Colorado
30-70 Hourly
Mid level
30-70 Hourly
Mid level
HR Tech • Other • Professional Services
The AI Software Engineer will train large-language models, compare code snippets, and provide feedback to improve AI-generated code. Requires strong C++ skills and attention to detail.
Top Skills: C++
7 Days AgoSaved
In-Office or Remote
Colorado
30-70 Hourly
Mid level
30-70 Hourly
Mid level
HR Tech • Other • Professional Services
Help train large-language models to write production-grade code by comparing, ranking, repairing, and refactoring AI-generated code, while providing feedback for reinforcement learning.
Top Skills: C
7 Days AgoSaved
In-Office or Remote
Colorado
30-70 Hourly
Mid level
30-70 Hourly
Mid level
HR Tech • Other • Professional Services
Join our team to help train large-language models by evaluating and improving AI-generated code, leveraging your coding and communication skills.
Top Skills: C#
7 Days AgoSaved
In-Office
Colorado
100K-200K Annually
Mid level
100K-200K Annually
Mid level
Financial Services • Cryptocurrency
The C++ Application Developer will work on trading system infrastructure, improving performance, developing features, and maintaining the test framework. Collaboration and clear code production are key responsibilities.
Top Skills: Automated C++ TestingC++JenkinsLinux/UnixMulticast NetworkingTcp/IpVersion Control SystemsWebsocket
10 Days AgoSaved
In-Office
Colorado
130K-204K Annually
Senior level
130K-204K Annually
Senior level
Digital Media • Gaming • Internet of Things • News + Entertainment • Retail • Business Intelligence • Cybersecurity
Design, build, and support the video advertising platform. Responsible for the software development lifecycle while collaborating with cross-functional teams and mentoring junior engineers.
Top Skills: AgileC++Db DesignNetwork ProgrammingPythonSdlc
11 Days AgoSaved
Easy Apply
Remote
Colorado
Easy Apply
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 11 Days AgoSaved
Remote
Colorado
117K-163K Annually
Senior level
117K-163K Annually
Senior level
Software • Financial Services
The Lead Software Engineer will develop software, mentor peers, ensure software quality, and create architectural approaches while guiding development teams.
Top Skills: .NetAi/CopilotAzureC#Node.jsReactTerraformTerragruntVb.Net
Reposted 11 Days AgoSaved
In-Office
Colorado
150K-235K Annually
Senior level
150K-235K Annually
Senior level
Digital Media • Gaming • Internet of Things • News + Entertainment • Retail • Business Intelligence • Cybersecurity
The Lead Software Engineer will oversee the software development lifecycle of a high-performance Ad Server, collaborating with stakeholders, mentoring junior engineers, and ensuring quality and timeliness of releases.
Top Skills: C++Db DesignGoNetwork Programming
Reposted 11 Days AgoSaved
Remote
Colorado
Senior level
Senior level
Fintech • Software
Develop backend services and APIs, improve existing solutions, create automated tests, and collaborate with the team while ensuring code quality and documentation.
Top Skills: Apache KafkaAsp.NetAWSC#Entity FrameworkGitGraphQLGrpcHTTPNatsNoSQLNunitRabbitMQRedisSoapSQLTcpXunit
Reposted 15 Days AgoSaved
Remote
Colorado
Senior level
Senior level
Information Technology
Design and develop scalable services/APIs using C#/.NET/.NET Core, collaborate during SDLC, mentor junior engineers, and ensure code quality.
Top Skills: C#,.Net,.Net Core,Linux,Aws,Azure,Docker,Kubernetes,Kafka
Reposted 17 Days AgoSaved
Remote
Colorado
Senior level
Senior level
Artificial Intelligence • Software
Design high-performance C++ libraries for automated PCB design challenges, mentoring peers and shaping technical direction while collaborating with experts in various fields.
Top Skills: C++CudaPython
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