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Top Senior Level C# Jobs in Washington DC,

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 will develop and execute test plans for Analog Silicon ASIC devices, manage test software and hardware solutions, ensure quality and compliance, and collaborate with a multidisciplinary team in semiconductor technology testing.
2 Days Ago
USA
Remote
506 Employees
138K-146K Annually
Senior level
506 Employees
138K-146K Annually
Senior level
Big Data • Analytics
The Sr. Software Development Engineer will design, develop, and maintain automation tools for deploying services across regions, collaborating with cross-functional teams to gather requirements, and ensuring reliable deployment practices through innovative automation solutions. They will also provide mentorship to junior team members.
2 Days Ago
US
Remote
2,760 Employees
Senior level
2,760 Employees
Senior level
Artificial Intelligence • Cloud • Fintech • Machine Learning • Mobile • Software
As a Senior Full Stack Engineer, you will design, develop, and maintain scalable web applications and microservices while collaborating with various teams to deliver high-quality solutions. You will own critical applications and contribute to the technical vision and architecture, ensuring reliable and secure solutions.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+39 More
2 Days Ago
United States
Remote
38 Employees
Senior level
38 Employees
Senior level
Healthtech • Software
The Senior Software Engineer, Team Lead will mentor a team of engineers while designing and implementing applications and features that enhance healthcare price transparency. Responsibilities include leading software feature design, developing REST APIs, and ensuring data architecture supports new applications. The role involves collaborating with the CTO and managing data systems related to healthcare and payments.
2 Days Ago
8 Locations
Remote
4,900 Employees
134K-178K Annually
Senior level
4,900 Employees
134K-178K Annually
Senior level
Fintech • Payments
The Software Development Engineer 4 will lead and implement scalable software solutions, collaborate with cross-functional teams, mentor junior staff, and enhance application architecture. Responsibilities include design, code reviews, troubleshooting, and ensuring adherence to industry standards in a remote team environment.
Top Benefits:
401-K
Adoption Assistance
Company Equity
+18 More
2 Days Ago
2 Locations
Remote
Senior level
Senior level
Healthtech
As a Staff Engineer at Rialtic, you will develop core features for the healthcare claims processing platform using Golang and Python, enhance cloud-native systems, collaborate with colleagues across teams, support security audits, and mentor junior developers. Your focus will be on automating processes and improving workflows while adhering to engineering best practices.
2 Days Ago
United States
Remote
185 Employees
Senior level
185 Employees
Senior level
Energy
The candidate will develop, support, and modernize mission-critical applications for DHS. Responsibilities include using Java, Go, and DevOps methodologies to enhance applications, deploying on AWS, and collaborating within Agile teams to implement software solutions.
Top Benefits:
401-K
Commuter Benefits
Company Outings
+19 More
3 Days Ago
United States
Remote
2,825 Employees
111K-138K Annually
Senior level
2,825 Employees
111K-138K Annually
Senior level
Information Technology • Software
The Senior Software Engineer will design, develop, and troubleshoot software programs for enhancements and bug fixes in a MultiValue database environment. Responsibilities include optimizing software design, handling customer issues, mentoring junior team members, and ensuring thorough task completion and documentation.
3 Days Ago
USA
Remote
1,050 Employees
Senior level
1,050 Employees
Senior level
Legal Tech • Software
As a Senior Software Engineer, you will design, develop, and deliver high-quality applications and services, focusing on information governance. You will collaborate with product and quality teams, participate in code reviews, and utilize modern development practices within an Agile environment.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+37 More
3 Days Ago
USA
Remote
26 Employees
Senior level
26 Employees
Senior level
Software
As a Sr Software Engineer, you will design, develop, and support innovative software solutions. Your role includes project analysis, making technical decisions, collaborating in an agile environment, and leading modern implementations while ensuring high performance and proper test coverage.
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