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Top Senior Level C# Jobs in Philadelphia, PA

255+ Job Results
17 Days Ago
USA
Remote
2,000 Employees
138K-254K Annually
Senior level
2,000 Employees
138K-254K Annually
Senior level
Healthtech • Machine Learning • Social Impact • Software
The Senior Software Engineer in Data Tools will enhance tools for managing healthcare data, creating insights for various teams, and ensuring data governance. Responsibilities include integrating data models with open source tools, developing data ingestion pipelines, and innovating data validation methods.
Top Benefits:
401-K
Company Equity
Company Outings
+33 More
18 Days Ago
United States
Remote
148 Employees
Senior level
148 Employees
Senior level
Information Technology • Other
As a Senior Software Developer at Concurrency, you'll design modern custom solutions, collaborate with internal and customer teams, contribute to full life cycle development, and drive process improvements while advocating for a positive customer experience. Your role will involve leveraging your expertise in Azure and various web technologies.
Top Benefits:
401-K
Company Outings
Dental Insurance
+12 More
18 Days Ago
2 Locations
Remote
2,000 Employees
116K-184K Annually
Senior level
2,000 Employees
116K-184K Annually
Senior level
Beauty • eCommerce • Food • Pet • Retail
The Sr. Software Developer will work as part of an agile team to design, develop, and maintain enterprise-grade software solutions primarily using the Microsoft .NET stack. Key responsibilities include full lifecycle application development, software testing, performance tuning, and ensuring compliance with standards.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+45 More
19 Days Ago
United States
Remote
201 Employees
125K-175K Annually
Senior level
201 Employees
125K-175K Annually
Senior level
Artificial Intelligence • Healthtech • Information Technology • Machine Learning • Natural Language Processing • Software • Analytics
The Full Stack Software Engineer will design and develop custom web and mobile applications, manage complex cloud solutions on AWS, write maintainable code, implement best practices, and provide technical mentorship to junior engineers. They will ensure solutions meet customer requirements and maintain high standards in software development while collaborating with team members throughout the development lifecycle.
Top Benefits:
401-K
401-K Matching
Dental Insurance
+29 More
20 Days Ago
United States
Remote
18 Employees
Senior level
18 Employees
Senior level
Security • Software • Cybersecurity
The Software Architect will define software architecture aligned with business goals, select technologies, design solutions, and lead the development of large-scale software systems. Responsibilities include mentoring engineers, collaborating with teams, and ensuring code quality while staying updated with industry trends.
20 Days Ago
USA
Remote
64 Employees
160K-180K Annually
Senior level
64 Employees
160K-180K Annually
Senior level
Cybersecurity
The Windows Endpoint Engineer will design, develop, test, and deploy features for Stairwell's endpoint agent on Windows. Responsibilities include building infrastructure to test and monitor agents, managing project priorities, and ensuring the overall quality and functionality of software within a Windows environment.
21 Days Ago
United States
Remote
30 Employees
Senior level
30 Employees
Senior level
Software • Design
The Senior Full-Stack Developer at GivingData will develop and maintain web applications, utilizing React and C#/ .NET for server-side logic. Responsibilities include translating requirements into code, building responsive UIs, and managing databases while working closely with teams to meet project goals.
21 Days Ago
8 Locations
Remote
97 Employees
Senior level
97 Employees
Senior level
Blockchain • Gaming • Software • Virtual Reality • Metaverse
The Senior Unity Engineer will take ownership of large features, ensuring quality and performance within Decentraland, and mentor other developers while collaborating closely with the creative team to align technical implementation with project vision.
21 Days Ago
2 Locations
Remote
132 Employees
Senior level
132 Employees
Senior level
Software
As a Staff Solutions Architect, you'll work with prospects to evaluate their applications for Temporal’s platform, educate them on its technical benefits, and help increase adoption within customer organizations. You'll serve as the technical liaison between customers and the growth team, ensuring optimal use of Temporal’s capabilities.
21 Days Ago
USA
Remote
1,100 Employees
Senior level
1,100 Employees
Senior level
Security • Software • Cybersecurity
As a Senior Software Engineer in Test at KnowBe4, you will develop and implement highly scalable testing frameworks to meet quality, performance, and reliability standards. Responsibilities include developing automated testing software, providing technical direction, defining solutions to complex problems, and acting as a team lead for projects. Minimum qualifications include 5+ years of experience in software engineering and automation, building automation frameworks at scale, implementing REST/GQL test frameworks, and working with various technologies and tools.
Top Benefits:
401-K
Adoption Assistance
Company Outings
+19 More
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