Senior Software Engineer - Contingent

Aretum
McLean, VA

This is a contingent position, meaning employment is dependent upon the successful award of the associated contract to Aretum and completion of any required background investigation or security clearance verification. 

About Aretum

Aretum is a mission-driven organization committed to delivering innovative, technology-enabled solutions to our customers across defense, civilian, and homeland security sectors. Our teams work at the intersection of strategy, technology, and transformation, helping agencies solve their most critical challenges. We believe in investing in our people and creating a culture where collaboration, inclusion, and professional growth are at the forefront. 

Job Summary 

Aretum is seeking a skilled and motivated Senior Software Engineer to join our team. As a Senior Software Engineer you will utilize your diverse skillset to support our client across various needs within an Agile development environment.

Due to the nature of our work as a federal consulting organization, employees may be expected to handle Controlled Unclassified Information (CUI) and must adhere to applicable safeguarding and compliance requirements.

Responsibilities

  • Actively participate in the analysis, design, and development of various modernization efforts.
  • Assist with all aspects of the Agile development: gather requirements, lead/participate in standup meetings, write user stories, create tasks, develop code, review backlogs, and work on assigned tasks.
  • Assist developers and lead development efforts with building, maintaining, and enhancing websites and web applications using .NET (C#), Postgres, GraphQL and optionally the MEAN stack.
  • Contribute to CI/CD pipeline development and deployment processes.
  • Support containerization strategies and troubleshoot deployment issues.
  • Plan and implement unit testing into the code and development life cycle.
  • Assist/Review load tests to identify bottlenecks and latency issues.
  • Make recommendations to implement optimizations, enhancements, and fixes.
  • Provide guidance and collaborate closely with a small development team.
  • Review and troubleshoot bugs and identify problem resolutions.
  • Assist and provide guidance to promote various best practices into the software development lifecycle.
  • Bachelor’s degree.
  • Must have at least five years of relevant experience in the areas described below:
    • Building applications with .NET (C#).
    • Experience developing and maintaining GraphQL APIs.
    • Experience working with Postgres and/or MSSQL databases.
    • Experience building/maintaining system data models/schemas.
    • Experience leading development teams as the senior engineer on projects.
    • Experience with Agile methodologies, DevOps, Docker (Containers), and CI/CD pipeline implementations.
    • Experience working independently and in a team environment, providing guidance to more junior developers on the team.
    • Experience engaging with stakeholders and gathering requirements.

Preferred Qualifications 

  • Experience with Microsoft Azure cloud technologies.
  • Experience with MEAN stack (MongoDB, Express, Angular, Node.js) and React.js.

Travel Requirements

This is a remote position; however, occasional travel may be required based on project needs, client meetings, team collaboration events, or training sessions. Travel is expected to be less than 10% and will be communicated in advance whenever possible. 

EEO Statement

Aretum is committed to fostering a workplace rooted in excellence, integrity, and equal opportunity for all. We adhere to merit-based hiring practices, ensuring that all employment decisions are made based on qualifications, skills, and ability to perform the job, without preference or consideration of factors unrelated to job performance. 

As an Equal Opportunity Employer, Aretum complies with all applicable federal, state, and local employment laws. 

We are proud to support our nation’s veterans and military families, providing career opportunities that honor their service and experience. 

If you require reasonable accommodation during the hiring process due to a disability, please contact [email protected] for assistance.

Equal Opportunity Employer/Veterans/Disabled 

U.S. Work Authorization

Applicants must be currently authorized to work in the United States on a full-time basis. This position does not offer sponsorship.

  • Health Care Plan (Medical, Dental & Vision)
  • Retirement Plan (401k)
  • Life Insurance (Basic, Voluntary & AD&D)
  • Paid Time Off
  • Family Leave (Maternity, Paternity)
  • Short Term & Long-Term Disability
  • Training & Development
Posted 2026-02-10

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