.NET C# Developer, Senior

Overview

JOB TITLE:

• NET C# Dvelopper, Senior
  
  

LOCATION Fort Belvoir, VA

SALARY: $138,000-$175,000 (Compensation is dependent upon qualifications and experience)

EMPLOYEE TYPE: Full-Time Salary Exempt

Employment in this role is conditional upon successful execution of the contract by the client.

The Work

The .NET C# Developer serves as a technical leader responsible for designing, developing, and maintaining high-quality software applications and systems using the Microsoft .NET framework and C#. This position is instrumental in supporting mission-critical programs and services for government clients, ensuring robust, scalable, and secure solutions by applying advanced programming, analytical, and problem-solving skills. The Developer works independently as well as collaboratively within cross-functional technical teams, mentoring junior staff and championing best practices in software lifecycle management.

This position aligns with Cayuse's core values of Innovation, Excellence, Collaboration, Adaptability, and Integrity by fostering technical solutions that meet customer needs, promoting teamwork, and prioritizing quality in deliverables.

Responsibilities

Key Responsibilities

• Design, develop, test, deploy, and maintain complex .NET applications using C#, ASP.NET (MVC, Web API), and .NET Core.
• Translate business requirements and functional specifications into robust technical solutions.
• Develop and optimize SQL Server database structures, stored procedures, and queries.
• Integrate applications with external systems, APIs, and third-party services.
• Apply secure coding practices in accordance with federal cybersecurity and privacy requirements.
• Implement automated unit, integration, and system tests to validate software functionality.
• Troubleshoot, diagnose, and resolve system defects and performance issues in development and production environments.
• Prepare comprehensive technical documentation, including design documents, deployment guides, and user manuals.
• Collaborate with cross-functional teams including business analysts, testers, and project managers to achieve project objectives.
• Participate in Agile/Scrum ceremonies, contributing to sprint planning, daily stand-ups, and retrospectives.
• Coordinate software releases, deployments, and configuration management in cloud and on-premises environments.
• Continually evaluate and adopt new technologies, tools, and methodologies to enhance software performance and team productivity.
• Ensure solutions comply with Section 508 Accessibility standards, FedRAMP/NIST frameworks, and agency-specific guidelines.
• Other duties as assigned.
  
  

Qualifications

Qualifications - Here's What You Need

The qualifications and skills listed below are intended to provide a general overview of the requirements for this position. However, due to the anticipated nature of the contract and the absence of a finalized task order from the client, this list should not be considered all-encompassing. Additional qualifications, certifications, skills, or experience specific to the client's requirements may be identified and requested upon award of the task order. Candidates should demonstrate flexibility and a willingness to adapt to evolving responsibilities as outlined by the client.

• Eight years of experience in .NET Development (including MS.NET, C#, MVC 4 , and Internet Information Services (IIS) for Windows Server web development).
• Five years of experience with Software Development Life Cycle Process (SDLC).
• Five years of experience with software development Unit Testing, System Testing, Functional Testing, User Acceptance Testing, or other development testing experience.
• Five years of experience in SQL database development stored procedures.
• Five years of experience mentoring junior personnel on proper practices and procedures.
• Five years of experience documenting software defects using a bug tracking system and reporting defects to software developers and project managers.
• Active Top Secret/SCI Security Clearance with SBI and ability to attain SI, TK, G, HCS, and NATO Secret clearance.
• Level II /Intermediate certification.
• Must be able to pass a background check. May require additional background checks as required by projects and/or clients at any time during employment.
  
  

Minimum Skills:

• Exceptional interpersonal skills with the ability to communicate in a clear, professional, and articulate manner.
• Exceptional verbal and written communication skills.
• Excellent organizational, analytical, and problem-solving skills with high-level attention to detail.
• Proven ability to multitask and prioritize in a fast past environment with changing priorities; adaptable to change and a quick learner.
• Must be self-motivated and able to work well independently as well as on a multi-functional team.
• Ability to handle sensitive and confidential information appropriately
• Proficient in MS Office, Word, Outlook, PowerPoint, and Excel.
  
  

Our Commitment To You / Overview Of Benefits

• Medical, Dental and Vision Insurance; Wellness Program
• Flexible Spending Accounts (Healthcare, Dependent Care, Commuter)
• Short-Term and Long-Term Disability options
• Basic Life and AD&D Insurance (Company Provided)
• Voluntary Life and AD&D options
• 401(k) Retirement Savings Plan with matching after one year
• Paid Time Off
  
  

eports to: Program Manager

Working Conditions

• Professional office environment.
• Must be physically and mentally able to perform duties extended periods of time.
• Ability to use a computer and other office productivity tools with sufficient speed to meet the demands of this position.
• Must be able to establish a productive and professional workspace.
• Must be able to sit for long periods of time looking at computer screen.
• May be asked to work a flexible schedule which may include holidays.
• May be asked to travel for business or professional development purposes.
• May be asked to work hours outside of normal business hours.
  
  

Other Duties: Please note this job description is not designed to cover or contain a comprehensive list of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.

Cayuse is an Equal Opportunity Employer. All employment decisions are based on merit, qualifications, skills, and abilities. All qualified applicants will receive consideration for employment in accordance with any applicable federal, state, or local law.

Pay Range

USD $138,000.00 - USD $175,000.00 /Yr.