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Top Senior Level C# Jobs in Philadelphia, PA

255+ Job Results
Yesterday
US
Remote
279 Employees
Senior level
279 Employees
Senior level
Payments • Software
The Senior Cloud Solutions Engineer at InvoiceCloud will drive the design and implementation of critical networking solutions, ensuring high availability and security of the SaaS platform. The role involves hands-on engineering, cloud cost management, and working collaboratively within cross-functional teams to meet engineering goals in a fast-paced Agile environment.
Yesterday
United States
Remote
147 Employees
Senior level
147 Employees
Senior level
Cloud • Information Technology • Consulting
The Azure AI Architect will lead the development of AI strategies, design advanced AI solutions, provide technical leadership to engineering teams, and ensure the integration of AI solutions into existing systems. Responsibilities include overseeing data architectures, managing AI projects, mentoring team members, and collaborating with peers to meet business objectives.
Top Benefits:
401-K
Company Outings
Dental Insurance
+12 More
Yesterday
United States
Remote
93 Employees
150K-160K Annually
Senior level
93 Employees
150K-160K Annually
Senior level
eCommerce
The Senior Full Stack Software Engineer will lead software development tasks, mentor team members, and collaborate closely with Product and UI/UX teams to create responsive front-end applications. The role involves developing, testing, and maintaining both front-end and back-end solutions while following Agile methodologies and ensuring software quality and performance.

Featured Jobs

Yesterday
United States
Remote
2,828 Employees
103K-150K Annually
Senior level
2,828 Employees
103K-150K Annually
Senior level
Healthtech
The Senior Software Engineer at Inovalon will design and implement secure, resilient distributed systems, enhance system performance, and lead engineering excellence. Responsibilities include mentoring team members, collaborating with various stakeholders, and ensuring compliance with policies regarding data handling.
2 Days Ago
United States
Remote
400 Employees
Senior level
400 Employees
Senior level
AdTech • Big Data • Digital Media • Marketing Tech • Sales • Software • Data Privacy
As a Senior Backend Engineer on the Audience team at VideoAmp, you will build APIs for media planning in advertising campaigns, collaborate with teams to ensure data accuracy, and implement reliable data pipelines. You'll primarily use Go and Python to develop RESTful APIs and work with cloud technologies like AWS and Kubernetes.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+59 More
2 Days Ago
USA
Remote
19,994 Employees
Senior level
19,994 Employees
Senior level
Artificial Intelligence • Information Technology • Machine Learning • Software • Virtual Reality • Analytics
Seeking an Associate Staff Engineer with 5+ years of experience in manual and automation testing roles. Must be comfortable with scripting in Java, C#, Python, JavaScript and have strong hands-on experience in automation tools like UFT, Selenium, Protractor, and others. Knowledge of test planning and agile methodologies is required.
2 Days Ago
United States
Remote
85 Employees
110K-135K Annually
Senior level
85 Employees
110K-135K Annually
Senior level
Healthtech • Other • Software
TherapyNotes is looking for a Senior Software Developer to build scalable web applications and APIs using Angular and ASP.NET Core. Responsibilities include full-stack development, architecture decisions, and mentoring new developers while adhering to SOA principles in an Agile environment.
Top Benefits:
401-K
Company Outings
Dental Insurance
+12 More
2 Days Ago
US
Remote
654 Employees
150K-162K Annually
Senior level
654 Employees
150K-162K Annually
Senior level
Edtech • Information Technology • Other
As a Senior Backend Engineer, you will modernize the core platform by developing scalable backend services and APIs, collaborating with engineers to deliver high-impact solutions, and optimizing system performance. Your focus will be on modular system design, library development, and utilizing cloud and event-driven architectures.
Top Benefits:
401-K
Child Care Benefits
Company Equity
+17 More
2 Days Ago
United States
Remote
1,155 Employees
165K-225K Annually
Senior level
1,155 Employees
165K-225K Annually
Senior level
Machine Learning • Productivity • Sales • Software
As a Staff Software Engineer at Outreach, you will lead the design and development of solutions for secure data access and access controls, collaborating closely with Product and InfoSec teams to meet customer needs as the company scales.
Top Benefits:
401-K
Commuter Benefits
Company Equity
+42 More
2 Days Ago
United States of America
85,636 Employees
127K-191K Annually
Senior level
85,636 Employees
127K-191K Annually
Senior level
Aerospace • Logistics • Security • Software • Cybersecurity
The Senior Principal Test Engineer at Northrop Grumman designs, develops, and executes test plans for Analog Silicon ASIC devices, focusing on hardware and software solutions to meet test requirements. The role involves overseeing test quality, scheduling, equipment procurement, and ensuring documentation compliance.
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