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Top Senior Level C# Jobs in Washington DC,

7 Days Ago
USA
Remote
660 Employees
Senior level
660 Employees
Senior level
Blockchain • Fintech • Cryptocurrency
As a Staff Software Engineer in the Funding organization, you'll design, build, and support crypto and fiat payment systems, improve development feedback cycles, ensure high standards of code quality, provide mentorship, and lead complex projects while collaborating across teams.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+30 More
7 Days Ago
United States
Remote
2,753 Employees
113K-160K Annually
Senior level
2,753 Employees
113K-160K Annually
Senior level
Fintech • Software
As a Senior RPA Automation Engineer at BILL, you will lead the development and implementation of automation solutions focused on improving financial workflows for small and mid-size businesses. Key responsibilities include assessing RPA infrastructure, establishing automation architecture, developing best practices, and guiding AI/ML pilot projects while mentoring junior developers.
7 Days Ago
United States
Remote
8,768 Employees
210K-315K Annually
Senior level
8,768 Employees
210K-315K Annually
Senior level
Gaming
The Lead Engineer, Mobile SDKs is responsible for designing and developing SDKs for mobile games, improving developer experience, enhancing SDK performance and security, and providing technical leadership to the development team. This role involves managing SDK delivery processes and staying updated on mobile game development trends.
Top Benefits:
401-K
Commuter Benefits
Company Outings
+15 More
7 Days Ago
United States of America
1,069 Employees
Senior level
1,069 Employees
Senior level
Healthtech • Professional Services • Software
The Staff Software Engineer will analyze system specifications, develop high-quality software, mentor other engineers, conduct system analysis, and lead architecture/design efforts. Responsibilities also include enforcing testing standards and reviewing documentation to ensure software support and quality.
7 Days Ago
U.S.
Remote
269 Employees
185K-200K Annually
Senior level
269 Employees
185K-200K Annually
Senior level
Artificial Intelligence • Music • Software
As a Senior Software Engineer II for ML Core, you will define architecture and implement changes for backend services. Responsibilities include optimizing search infrastructure, enabling rapid ML model productionalization, mentoring team members, and managing complex projects across teams.
7 Days Ago
U.S.
Remote
200 Employees
185K-200K Annually
Senior level
200 Employees
185K-200K Annually
Senior level
Consumer Web • Digital Media • Information Technology • Music • Software
The Senior Software Engineer II will define architecture and implement changes across backend services for scalable solutions. Responsibilities include optimizing search infrastructure, advocating system designs, overseeing complex projects, mentoring team members, and adapting to change while focusing on customer experience and project quality.
Top Benefits:
401-K Matching
Commuter Benefits
Company Equity
+20 More
7 Days Ago
USA
Remote
8,150 Employees
Senior level
8,150 Employees
Senior level
Information Technology • Software • Travel
The Senior Software Engineer at Sabre will focus on developing and supporting the SynXis Central Reservation System, ensuring quality, performance, and scalability of systems. The role involves mentoring new engineers, conducting technical training, diagnosing and resolving system issues, and contributing to architectural governance and documentation.
8 Days Ago
United States of America
3,035 Employees
Senior level
3,035 Employees
Senior level
Energy
The Senior Software Engineer will collaborate with product managers and digital teams to develop applications, micro-services, APIs, and distributed systems. Responsibilities include managing cloud resources, supporting digital product management activities, and resolving technical issues.
8 Days Ago
USA
Remote
6,766 Employees
Senior level
6,766 Employees
Senior level
Software
The Technical Lead II in CRM Configuration Backend will design and build systems using Java while mentoring fellow engineers, collaborating with cross-functional teams, solving customer-related challenges, and promoting a diverse and inclusive work environment.
8 Days Ago
United States
Remote
63 Employees
Senior level
63 Employees
Senior level
Software
Cube Dev is seeking a Principal Software Engineer for its Cube Core team to focus on building and maintaining analytics data access technology. Responsibilities include SQL generation, optimizing data storage and retrieval systems for performance, and developing analytics operations management features, all while supporting an open-source community and collaborative development environment.
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