Demo

Senior Python Developer - Contingent

Aretum
Mc Lean, VA Full Time
POSTED ON 4/23/2026
AVAILABLE BEFORE 6/23/2026

Public Trust Eligibility Required

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 Python Developer. As a Senior Python Developer, you will assist in leading the integration of a custom application with other client based systems.

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

  • Work cross-functionally in an Agile environment
  • Build FastAPIs for the display of content
  • Create microservices
  • Work on front-end and back-end code
  • Mentor peers and junior developers in Python design
  • Build ETL processes
  • Work in a highly collaborative environment
  • Juggle multiple tasks at once
  • Work independently and collaboratively as needed
  • Utilize interpersonal skills and strong communication skills
  • Work directly with the Project Manager to support emerging client needs
  • 8 years of solid Python development experience
  • 8 years of overall (OOP) programming experience
  • Bachelor’s Degree (or 2 additional years of experience)
  • API development and integration experience
  • Experience with Microservices
  • Experience with JavaScript and JQuery
  • Experience with Search engines, such as Solr or Elasticsearch
  • Experience designing and developing enterprise Web and Search systems
  • Experience with enterprise database technologies, such as Postgres and MySQL
  • Experience building and managing container technologies such as Docker, Podman, Kubernetes, etc.
  • Comfortable with working with open source-based solutions
  • Familiar with enterprise use of Python
  • Expert in continuous integration/continuous delivery solutions
  • Experience with large-scale AWS based solutions and Terraform
  • Agile environment experience

Preferred Qualifications

  • Bachelor's Degree in computer science, engineering or related field
  • Experience with the federal government
  • Experience with FastAPIs (Highly preferred)

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 hr@aretum.com for assistance. 

Equal Opportunity Employer/Veterans/Disabled 

U.S. Work Authorization

Applicants must be U.S. citizens or currently authorized to work in the United States on a full-time basis. This position supports a federal government contract and requires the ability to obtain and maintain a Public Trust or Suitability Determination, depending on the agency’s background investigation requirements. Sponsorship is not available. 

  • 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 

Salary.com Estimation for Senior Python Developer - Contingent in Mc Lean, VA
$130,520 to $161,644
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