Senior .NET Developer

Clearwaters.IT · Washington, DC · Remote

Posted 6/17/2026 · last confirmed live 8/26/2026

Location: Remote - candidates must live within the United States Description: Seeking a Senior Developer to design, develop, and maintain high-quality software solutions. This role requires expertise in software architecture, coding best practices, and modern development frameworks. The ideal candidate will have a strong background in full-stack development, cloud computing, and Agile methodologies, working closely with cross-functional teams to deliver scalable and efficient software solutions. Job Responsibilities: Participate in creating software development plans and strategies. Design, develop, and maintain scalable, high-performance software applications. Work as part of a team to write a specific section of the program Combine all elements of the program design and test it, ensuring sample data-sets yield output as intended Write clean, efficient, and well-documented code following industry best practices. Maintain and improve the performance of existing software Recommend improvements to existing software programs as necessary Participate in creating software development plans and strategies. Collaborate with architects, product managers, and other developers to define technical requirements and system design. Perform code reviews, mentor junior developers, and enforce coding standards. Develop and maintain RESTful APIs, microservices, and cloud-based applications. Optimize application performance, ensuring high availability, security, and scalability. Implement and maintain CI/CD pipelines, ensuring smooth deployments and automation. Work within Agile/Scrum development teams, participating in sprint planning, stand-ups, and retrospectives. Stay up to date with emerging technologies, advocating for best practices and continuous improvement. Must have experience in developing and implementing algorithms. Requirements Must be a U.S. Citizen or Permanent Resident Must be able to obtain and maintain a Public Trust security clearance Strong verbal and written communication skills in English are required to fulfill client-facing, documentation, and reporting responsibilities Education and Experience: Bachelor’s degree in Computer Science, Software Engineering or a related field (or equivalent experience) and eight (8)+ years of experience in software development 8 years of additional relevant experience may be substituted for education Technology Stack Skill Requirements: Step Functions Cloudwatch RDS Lambda S3 SQS SNS Elastic Container Registry .NET Python Network Load Balancer Application Load Balancer Web Application Firewall DynamoDB Kinesis Data Stream Firehose Required Skills: Strong proficiency in developing solutions in the following programming languages (.NET (backend development), Java, Python, JavaScript, C#, etc.). Experience working with X.12 Medical Claims Processing (835, 837, 277, 275, etc.). Experience with back-end development, including modern frameworks (.NET, etc.). Proficiency in database management (SQL, RBS, MongoDB, or other NoSQL databases). Strong knowledge of the AWS and/or MS Azure cloud platforms and containerization (Docker, Kubernetes). Experience in RESTful API development, microservices architecture, and distributed systems. Strong working knowledge of CI/CD tools (GitHub Actions, GitLab CI/CD). Experience working with GitHub Co-pilot preferred Strong problem-solving, analytical, and debugging skills. Excellent communication and teamwork abilities Strong verbal and written communication skills are preferred Attention to detail and strong excellent customer service skills are preferred Experience working in a Scaled Agile Framework environment (SAFe) Experience working in a DevOps CI/CD environment Experience with software configuration management tools such as Git, Subversion, Jira Proficient with MS Office Suite Experience using Jira for Application Lifecycle Management (ALM) Must be able to create logical and functional software code in a variety of languages using .NET and Python as primary languages Must have experience in understanding and articulating the benefits and risks associated with different coding languages in different functional environments Must have experience reacting to problems and correcting the program as necessary Experience working in a fast-paced, Agile development environment. Proven ability to design and implement scalable, maintainable, and high-performance software solutions. Desired Skills: AWS Developer Certification Benefits Health Care Plan (Medical, Dental & Vision) Retirement Plan (401k, IRA) Life Insurance (Basic, Voluntary & AD&D) Paid Time Off (Vacation, Sick & Public Holidays)

This role is published by Clearwaters.IT on workable. SwiftFit is not the employer and does not accept applications.