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Top Senior Level C# Jobs in Denver & Boulder, CO

12+ Job Results
2 Days Ago
Greenwood Village, CO, USA
7+ Years of Experience
7+ Years of Experience
Aerospace • Cybersecurity • Defense • Manufacturing
Develop user-facing features for spacecraft operations, translate requirements into code, build APIs, engineer algorithms, write tests and documentation, collaborate with teams, participate in technical design.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+19 More
3 Days Ago
United States
Remote
3,300 Employees
5-7 Years of Experience
3,300 Employees
5-7 Years of Experience
Information Technology • Security • Cybersecurity
Cloudflare is seeking a Senior Software Engineer to work on the development of D1, Cloudflare's first serverless database. The role involves building and defining the future of D1 to enable developers to build full-stack applications. Responsibilities include building full-stack web applications, knowledge of various programming languages, experience operating SaaS applications, designing and building APIs, and a strong understanding of computer science fundamentals.
Top Benefits:
401-K
Child Care Benefits
Commuter Benefits
+45 More
3 Days Ago
Louisville, CO, USA
69 Employees
111K-185K Annually
5-7 Years of Experience
69 Employees
111K-185K Annually
5-7 Years of Experience
Fitness • Software
As a Senior Software Engineer at TrainingPeaks, you will be responsible for creating and supporting sites and services, developing front & backend code, improving system scalability, mentoring junior developers, and driving open team communication. The role involves contributing to product development, architecture/design discussions, and continuous learning.
Top Benefits:
401-K
401-K Matching
Company Outings
+39 More
3 Days Ago
Louisville, CO, USA
269 Employees
111K-185K Annually
5-7 Years of Experience
269 Employees
111K-185K Annually
5-7 Years of Experience
Fitness • Music • Software
As a Senior Software Engineer at TrainingPeaks, you will be responsible for developing and supporting sites and services, improving system scalability, refactoring code, and driving architecture decisions. You will mentor junior developers and contribute to team communication and best practices.
Top Benefits:
401-K
401-K Matching
Company Outings
+39 More
9 Days Ago
USA
Remote
400 Employees
215K Annually
5-7 Years of Experience
400 Employees
215K Annually
5-7 Years of Experience
Cloud • Security • Software • Cybersecurity
Staff Software Engineer role at Red Canary, responsible for building and enhancing the Red Canary platform and products, shipping high-quality SaaS features, collaborating with Product Management, and ensuring 24/7 product support.
Top Benefits:
401-K
Child Care Benefits
Commuter Benefits
+32 More
13 Days Ago
Louisville, CO, USA
2,000 Employees
159K-239K Annually
7+ Years of Experience
2,000 Employees
159K-239K Annually
7+ Years of Experience
Aerospace • Hardware • Information Technology • Robotics
Join Sierra Space as a Principal Software Engineer working on spacecraft flight software. Responsibilities include assessing spacecraft designs, conducting research, estimating costs, providing technical leadership, overseeing subcontracted efforts, and developing embedded flight code. Must have a Bachelor's degree in Computer Science or related field with 14+ years of experience.
Top Benefits:
401-K
401-K Matching
Company-Sponsored Family Events
+28 More
13 Days Ago
Colorado Springs, CO, USA
114 Employees
90K-120K Annually
5-7 Years of Experience
114 Employees
90K-120K Annually
5-7 Years of Experience
Transportation
Join PriceAdvantage as a Software Engineer to work on building new product enhancements and fixing defects in a fast-paced agile development environment. Responsibilities include writing code in both Windows and Web environments, performing tests on new features, and reviewing code written by other Software Engineers. This role has a significant impact on the success of the PriceAdvantage division.
16 Days Ago
Denver, CO, USA
50 Employees
150K-225K Annually
5-7 Years of Experience
50 Employees
150K-225K Annually
5-7 Years of Experience
Agency • Cloud • Mobile • Software
The Senior DevOps Engineer at Focused Labs is responsible for shaping and implementing DevOps best practices, driving organizational transformation, and ensuring successful delivery of complex software projects. They are experts in DevOps methodologies and have extensive hands-on experience with DevOps tools. They also possess excellent leadership and communication skills.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+46 More
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