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Top Senior Level .NET Developer Jobs in Washington DC,

245 Employees
Senior level
Fintech • Software
The Senior Full Stack Developer will design and develop frontend and backend components of web applications using React, TypeScript, and .NET Core C#. Responsibilities include enhancing existing solutions, collaborating with team members, writing maintainable code, and maintaining CI/CD pipelines.
11 Days Ago
USA
Remote
196 Employees
Senior level
196 Employees
Senior level
Financial Services
The Senior Cloud Solutions Developer will modernize applications for cloud deployment, focusing primarily on software development (80%) and solution architecture (20%). They will solve complex problems, lead technical assessments, and work collaboratively on multiple projects while occasionally traveling to client sites.
12 Days Ago
USA
Remote
530 Employees
Senior level
530 Employees
Senior level
Payments
Lead the development team by providing technical guidance and mentorship. Ensure software quality, collaborate with cross-functional teams to design and maintain applications, and manage deployment activities. Analyze and resolve technical issues while aiding migration of legacy applications to modern Microsoft technologies.
12 Days Ago
United States of America
Remote
1,831 Employees
Senior level
1,831 Employees
Senior level
Edtech
As a Senior Software Engineer, you will optimize and write performance-focused code from scratch, tackling heavy data loads, designing scalable systems, and collaborating across teams. Core responsibilities include developing web services, enhancing system architecture, and writing efficient algorithms.
Top Benefits:
401-K
Adoption Assistance
Company Outings
+15 More
13 Days Ago
United States
Remote
350 Employees
Senior level
350 Employees
Senior level
Mobile • Security • Software • Cybersecurity
The Senior Software Engineer will design and implement features for KeeperChat, optimizing performance across Windows, macOS, iOS, and Android platforms, and collaborate with product teams to meet user requirements. Responsibilities include code reviews, mentoring junior engineers, and staying current with software engineering trends.
Top Benefits:
401-K
Company Equity
Company Outings
+32 More
13 Days Ago
United States of America
Remote
17,673 Employees
90K-188K Annually
Senior level
17,673 Employees
90K-188K Annually
Senior level
Information Technology
As a Senior .NET Application Developer, you will develop and maintain applications using .NET technologies, integrate with AWS services, manage code repositories, and ensure compliance with standards. You will work with large datasets for reporting while collaborating with teams and adhering to Agile methodologies.
Top Benefits:
401-K
Adoption Assistance
Child Care Benefits
+19 More
13 Days Ago
USA
Remote
340 Employees
170K-200K Annually
Senior level
340 Employees
170K-200K Annually
Senior level
Edtech
The Senior Software Engineer at Ignite Reading is responsible for leading software development projects to scale the organization and serve at least 100,000 students. Key responsibilities include assessing technical needs, designing key software projects, partnering with teams to deliver solutions, and supporting the development of the engineering function. Qualifications include 7+ years of software engineering experience, knowledge of modern web development technologies, and experience with Ruby on Rails, Hotwire, Tailwind, and Postgres.
13 Days Ago
USA
Remote
64 Employees
145K-175K Annually
Senior level
64 Employees
145K-175K Annually
Senior level
Fintech • Payments • Financial Services
The role involves developing and maintaining enterprise-scale applications using technologies like .NET/.NET Core and ASP.NET Core Blazor. It requires strong analytical skills, experience in software development, and an ability to adapt to new technologies quickly. The position also entails documenting and maintaining system code.
14 Days Ago
USA
Remote
88 Employees
145K-210K Annually
Senior level
88 Employees
145K-210K Annually
Senior level
Cloud • Software
The Enterprise Cloud Architect at Liatrio will work with enterprise clients to provide transformative cloud solutions. They will design and manage infrastructure as code, work with multiple cloud providers, and mentor engineering teams. The role requires strong communication skills and the ability to engage with C-level executives on business needs.
14 Days Ago
US
Remote
820 Employees
Senior level
820 Employees
Senior level
Information Technology • Software
The Sr. Software Developer will design, develop, and maintain software in collaboration with a team, participate in the SDLC, create high-quality deliverables through Agile processes, and utilize Microsoft SQL Server for database management. Key responsibilities include writing code, conducting unit testing, and optimizing software solutions in the AWS cloud.
Top Benefits:
401-K
Company Outings
Dental Insurance
+13 More
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