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.Net Developer

Xenith Solutions

Salary not specified
Jan 1, 2026
Leesburg, VA, US
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Xenith Solutions is seeking to deliver high-quality software solutions to Federal / Civilian, Defense, and Intelligence organizations by supporting their legacy and modernized systems with custom software and database application capabilities.

Requirements

  • Experience with the following: .NET Core, Legacy .NET, Dapper, Entity Framework (or any other ORM), C-Sharp, Typescript, JavaScript, REST, XML, JSON, and Web APIs. Correlated Java technologies are a plus. HTML, CSS, etc.
  • Understanding of the suite of AWS Developer tools: SQS, S3 at a minimum
  • Familiarity integrating with cloud-based services such as Salesforce, SharePoint, ServiceNow, etc.
  • Advanced Experience using SQL to access/administer/develop PostgreSQL databases. MySQL and SQL Server are a plus
  • Advanced experience with object-oriented design and development (OODD), Service Oriented Architecture (SOA)
  • Experience designing, developing and maintaining scalable and efficient web applications using .NET Core, React, and Web API. Angular a plus
  • Experience understanding, applying modern development patterns and practices

Responsibilities

  • Participating in Agile Scrum ceremonies (e.g., sprint planning, daily stand-ups, sprint review, retrospectives)
  • Developing and maintaining software applications, ensuring adherence to coding standards and best practices
  • Collaborating with cross-functional teams to deliver releasable software increments
  • Working closely with customers and stakeholders to understand requirements and deliver solutions that meet their needs
  • Designing, developing and implementing custom software and database application capabilities for a variety of legacy and modernized systems with limited oversight
  • Support release planning with conceptual design and development / refinement of software engineering guidelines
  • Analyzing complex project-related problems and creating innovative solutions involving scheduling, technology, methodology, tools and solution components

Other

  • Must be a U.S. Citizen with the ability to pass CBP background investigation, criteria include but is not limited to: 3 year check for felony convictions, 1 year check for illegal drug use, 1 year check for misconduct such as theft or fraud
  • College degree (B.S.) in Computer Science, Software Engineering, Information Management Systems or a related discipline
  • Professional Experience: at least seven (7) years related technical experience, with software design, development and implementation in a Windows Environment
  • Excellent written and verbal communication skills
  • Strong collaboration skills and desire to work within a team