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Top Senior Level C# Jobs in Washington DC,

4 Hours Ago
USA
Remote
132 Employees
Senior level
132 Employees
Senior level
Biotech
As a Full-Stack Developer, you will design, develop, test, and maintain software applications for the medical industry, ensuring compliance with standards. Key responsibilities include working with technologies such as C#, .NET, SQL, Java, and AWS, while also following best practices in software development, quality assurance, and problem-solving.
6 Hours Ago
US
Remote
279 Employees
Senior level
279 Employees
Senior level
Payments • Software
The Senior Cloud Solutions Engineer at InvoiceCloud is responsible for designing and implementing high-availability cloud solutions, managing security and scalability, and optimizing costs. The role requires hands-on engineering, leadership in technical domains, and collaboration across teams while contributing to the company’s SaaS applications modernization and security architecture.
7 Hours Ago
United States
Remote
2,506 Employees
99K-117K Annually
Senior level
2,506 Employees
99K-117K Annually
Senior level
Healthtech
The Sr Software Engineer will design, develop, and test software applications, acting as a liaison with business analysts and clients. Responsibilities include producing unit test cases, maintaining coding standards, and completing software components on schedule. Collaboration with teams and effective communication are vital.
7 Hours Ago
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 and solutions, integrating multiple technologies, overseeing implementations, mentoring teams, and collaborating with project managers to ensure alignment with business goals and successful delivery.
Top Benefits:
401-K
Company Outings
Dental Insurance
+12 More
8 Hours Ago
United States
Remote
93 Employees
150K-160K Annually
Senior level
93 Employees
150K-160K Annually
Senior level
eCommerce
The Senior Full Stack Software Engineer leads software development tasks, mentors team members, and collaborates with cross-functional teams. Responsibilities include efficient software design, development, automated testing, and applying UI design principles to create responsive applications. This role requires oversight and coding on both front-end and back-end technologies.
12 Hours 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, you'll build APIs to enhance media planning for advertising campaigns. Collaborating across teams, you'll ensure robust methodologies and reliable data pipelines while serving major brands and publishers in the advertising sector.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+59 More
13 Hours Ago
United States
Remote
85 Employees
110K-135K Annually
Senior level
85 Employees
110K-135K Annually
Senior level
Healthtech • Other • Software
As a Senior Software Developer, you'll perform full-stack development for web and mobile applications, engaging throughout the development lifecycle. You'll drive software architecture decisions, mentor junior developers, and ensure high-quality, scalable solutions in a collaborative team environment.
Top Benefits:
401-K
Company Outings
Dental Insurance
+12 More
20 Hours Ago
USA
Remote
300 Employees
140K-170K Annually
Senior level
300 Employees
140K-170K Annually
Senior level
Artificial Intelligence • Healthtech • Information Technology • Machine Learning
As a Lead Software Engineer, you will drive the implementation of TrueCost, focusing on coding, troubleshooting, and integrating solutions for clients. Responsibilities include developing features, building interfaces, conducting code reviews, and collaborating with QA and product teams. You will also mentor junior developers and ensure adherence to coding standards and practices.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+37 More
20 Hours 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.
20 Hours Ago
USA
Remote
19,994 Employees
Senior level
19,994 Employees
Senior level
Artificial Intelligence • Information Technology • Machine Learning • Software • Virtual Reality • Analytics
Seeking a Staff Engineer in QA Automation with 5+ years of experience in manual and automation testing roles. Must be proficient in Java, C#, Python, and JavaScript, with strong hands-on experience in various automation tools and frameworks. Familiarity with test planning, agile methodologies, and a passion for exceeding client expectations.
20 Hours Ago
USA
Remote
19,994 Employees
Senior level
19,994 Employees
Senior level
Artificial Intelligence • Information Technology • Machine Learning • Software • Virtual Reality • Analytics
Seeking a Staff Engineer for QA Automation with 5+ years of experience in manual and automation testing roles. Must be proficient in Java, C#, Python, JavaScript scripting and have strong hands-on experience with various automation tools and frameworks. Knowledge of test planning and agile methodologies is required.
20 Hours Ago
United States
Remote
76 Employees
Senior level
76 Employees
Senior level
Information Technology • Software • Cybersecurity
The Full Stack Developer will support the Small Business Administration by programming complex systems, recommending redesigns, analyzing feasibility, and developing specifications. The role involves solving programming issues and utilizing knowledge of system software and management practices to produce multifaceted applications for various sectors.
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