2w
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Senior Fullstack Engineer
Boulder, Colorado, United States
$135k-$160k/yr HybridFull Time
7+ YOE7+ years software engineering experience, strong C#/.NET and SQL Server expertise, JavaScript familiarity, distributed systems and API design, technical leadership and mentoring.
C#/.NET, SQL Server, JavaScript
2mo
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Senior Software Engineer II of Trading
New York City or Denver or San Francisco
$174k-$210k/yr HybridFull Time
5+ YOE5–8 years software engineering; 5+ years in compiled languages (TypeScript, C#, Java); 2+ years scripting (Python, JavaScript, Ruby); real-time data processing; strong SQL (PostgreSQL/MySQL); CI/CD; cloud platforms (AWS/Azure/GCP); Private Markets/Financial Services experience.
TypeScript, C#, Java, Python, JavaScript, Ruby, WebSockets, Kafka, PostgreSQL, MySQL, CI/CD, Git, GitHub, JIRA, AWS, Azure, GCP
1mo
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Senior Frontend Software Engineer - Ground Software
Laurel or Austin or Greenwood Village
$120k-$190k/yr HybridFull Time
6+ YOERequired: Bachelor's in CS or related, 6+ years frontend experience, deep React and TypeScript, design system and component library experience, Yarn/Babel/Material-UI, Git, REST APIs, mentoring ability, and ability to obtain security clearance.
React, TypeScript, C# .NET, Docker, Kafka, REST, Yarn, Babel, Material-UI, Git, TanStack Query, WebAssembly (WASM), WebGL
3w
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Senior Red Team Operator
Minneapolis or Atlanta or Cincinnati or Cupertino or Portland or New York or Chicago or Englewood or Charlotte or Irving
$133k-$157k/yr HybridFull Time
8+ YOEBachelor's degree or equivalent, 8+ years in information security with offensive security/Red Team experience; expertise in exploit development, offensive tooling, and scripting; strong communication and leadership.
Cobalt Strike, Metasploit, Mythic, Sliver, Python, PowerShell, C/C++, C#, Go, Shell, EDR, XDR, Infrastructure as Code (IaC)
1mo
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Software Engineer (Full Stack)
Denver, Colorado, United States
$125k-$165k/yr HybridFull Time
6+ YOEBA/BS in CS or engineering required; 6+ years software development experience with C#, JavaScript, SQL/T-SQL, REST/.NET Core; experience with web development, React preferred, relational DB and SDLC (Agile/Scrum).
C#, JavaScript, SQL, TSQL, SQL Server, React, .NET Core, .NET, ADO, HTML, XML, ASP, AJAX, REST, Web services, Git, Jira, TeamCity, Octopus
1mo
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Instructional Coordinator - Adjunct - Open Pool
Fort Collins, Colorado, United States
$70-$2k/yr HybridPart Time
5+ YOEMaster's or doctorate in a relevant field, 5+ years professional experience (MBA IC) or equivalent academic experience, proficiency in Microsoft Office, experience delivering supplemental teaching/coaching, ability to work varied hours, and legal US work authorization.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Canvas, Blackboard, Moodle, C#, ASP.Net, PHP, Java, bash, PowerShell, Python, R, JavaScript, HTML, CSS, SQL, NoSQL, UML, AdWords, WordPress, SEO
3w
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Machine Learning Engineer
Cheyenne or Fort Collins or Laramie
$90k-$110k/yr OnsiteFull Time
Master's/PhD or Bachelor's with experience; proficient in Python and PyTorch; experience deploying ML to cloud, edge, or field systems; experience with remote sensing/drone imagery; strong communication and problem-solving skills; valid driver’s license and background checks required.
Python, PyTorch, C#, Azure ML
2w
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Manager, Technology Disputes - Coding
Atlanta or Boston or Chicago or Dallas or Denver or Los Angeles
$115k-$165k/yr OnsiteFull Time
4+ YOEBachelor's in CS/Engineering or similar,4+ years software development/code-review experience,ability to read/write C++,C#,Java,Python,SQL,HTML,strong communication,team management,US work authorization required.
C++, C#, Java, Python, SQL, HTML
5d
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Sr. Digital Engineer
Aurora, Colorado, United States
$88k-$110k/yr OnsiteFull Time
University engineering/automation/robotics or computer science degree (or equivalent), strong programming (C++, C#, Java, Python), OPC UA, PLC programming (Rockwell Studio 5000 Logix Designer), database tech, computerized system validation, and project management skills.
C++, C#, Java, Python, OPC Unified Architecture, Rockwell Studio 5000 Logix Designer, Database systems
2mo
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HW Test Engineer
San Francisco or Boulder
OnsiteFull Time
3+ YOE3+ years hardware/software development; embedded hardware; Python or C#/WPF; PCB bring-up; data logging; travel up to 20%; BS/BA in technical field; manufacturing experience.
Python, C#, WPF, Git, GitHub, Command Line, Homebrew, apt, Soldering, Wiring, I2C, SPI, PCB Bring-up, Data Logging
1mo
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Software Engineer Full Stack (Pricing Engine)
Denver or United States or United Kingdom or Canada or Australia or New Zealand
$83k-$125k/yr HybridFull Time
3+ YOE3+ years building production web applications; strong frontend with Vue.js or React; backend proficiency in C#/.NET (or Java, Kotlin, Go); SQL and AWS (SQS, DynamoDB, S3, ECS, Lambda); testing, AI coding tools, and strong system design and communication.
Vue.js, React, C#, .NET, Java, Kotlin, Go, SQL, AWS, SQS, DynamoDB, S3, ECS, Lambda, Copilot, Cursor, Claude Code, Memcached, Redis, Jira, Confluence, Postman, Bruno, CI/CD
2mo
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Senior C++/C# Software Engineer
Centennial, Colorado, United States
$100k-$140k/yr OnsiteFull Time
Bachelor's in computer science or related, strong experience with C++ or C#, familiarity with .NET and database design, problem solving and communication skills, interest in finance domain and legacy code maintenance.
Visual Studio Professional, .NET, C++, C#, Entity Framework, Microsoft SQL Server, MSTest, Moq, GitHub Copilot, Git, Azure DevOps, PowerShell
3w
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Staff Software Engineer
Denver or Austin or United States
$150k-$160k/yr HybridFull Time
10+ YOE10+ years software development experience with deep mobile expertise; Bachelor’s or equivalent; production React Native, TypeScript, Swift and/or Kotlin experience; native iOS/Android and CI/CD knowledge; strong communication and technical leadership.
React Native, TypeScript, Swift, Kotlin, Angular, C#, SQL, Git, Xcode, Android Studio
1mo
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IT Support & Systems Analyst
Longmont or Niwot
$70k-$95k/yr OnsiteFull Time
10+ YOE10+ years IT experience; administer Windows/Linux servers, networking (VLANs, VPNs, TCP/IP, DNS, DHCP), IAM (Active Directory, Duo), Rapid7 SIEM, GitLab; develop/maintain apps with VB.NET, C#, Python, PowerShell, SQL, PHP; on-call availability; must meet ITAR eligibility.
Active Directory, Duo Federal 2FA, PaperCut, Zoom, Infor CloudSuite Industrial ERP, Rapid7 SIEM, Windows Server, Linux, Ubiquiti, SonicWall, BarTender Designer, GitLab, VB.NET, C#, Python, PowerShell, SQL, PHP
6d
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Senior Software Engineer (.NET)
Aurora, Colorado, United States
$135k-$140k/yr OnsiteFull Time
4+ YOE4+ years relevant experience with .NET/C#/MVC/JavaScript/SSIS/T-SQL; full-stack web development, Agile experience, strong SQL and UI skills; Master's or Bachelor's degree alternatives noted.
.NET, C#, MVC, JavaScript, SSIS, T-SQL, JQuery, HTML, CSS, SQL, Web Services
4w
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Senior Site Reliability Automation Engineer
Denver or Raleigh
HybridFull Time
7+ YOE7+ years in software/site reliability/platform/DevOps roles; strong software development in Python, PowerShell, TypeScript, JavaScript, Java or C#; experience with CI/CD, AWS and/or Microsoft Azure, production troubleshooting, RCA, and building automation and observability.
Python, PowerShell, TypeScript, JavaScript, Java, C#, CI/CD, AWS, Microsoft Azure, Datadog, Dynatrace, Splunk, New Relic, Microsoft Azure Monitor, Amazon CloudWatch
1w
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SIL Architect
Broomfield, Colorado, United States
HybridFull Time
7+ YOE5+ MgmtBachelor's or equivalent plus extensive enterprise integration experience; 7+ years delivering integration solutions and 5+ years in technical leadership; expertise in cloud-native integration, APIs, event-driven architectures, CI/CD, and modern engineering practices.
Microsoft Azure, C#, .NET, SQL, NoSQL, CI/CD, DevOps, Infrastructure as Code (IaC), Kafka, Azure Integration Services, API Management, Service Bus, Event Grid, Logic Apps, Azure Functions, Domain-Driven Design (DDD)
2mo
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Software Engineer
Denver, Colorado, United States
$70k-$145k/yr OnsiteFull Time
2+ YOEBachelor's in Computer Science; 2+ years in software development; experience with C#, Angular/JS, HTML5, CSS3, SQL, GitHub; SDLC; Azure; EF; strong communication.
C#, Angular, HTML, CSS, SQL, GitHub, Azure, Entity Framework, ASP.NET
2mo
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Sr AI Enablement Engineer
Bellevue or Boston or Boulder or Chicago or Denver or Los Angeles or New York City or San Francisco or San Jose or Seattle or Ventura
$125k-$229k/yr OnsiteFull Time
8+ YOE8+ years software engineering experience, 1-2+ years on AI systems, Bachelor's/Master's or equivalent, strong Python and familiarity with C#, SQL, TypeScript/React, experience with LLMs, RAG, vector DBs, and enterprise AI platforms.
LangChain, LlamaIndex, Semantic Kernel, Azure AI Search, vector databases, Microsoft Copilot, Microsoft Copilot Studio, Anthropic Claude, Python, C#, SQL, TypeScript, React
2mo
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Senior Application Developer
Aurora, Colorado, United States
$85k-$95k/yr HybridFull Time
2+ YOESenior developer for identity and access management; design, develop, and support secure, multi‑system web apps with identity/authentication integrations.
ASP.NET, NodeJS, MVC, TypeScript, Angular, Vue, React, MySQL, Oracle, MSSQL Server, Java, Python, Ruby, C#