Demo

Sr. Cross Domain System Engineer (100% onsite)

Akumen, Inc
Washington, DC Full Time
POSTED ON 6/15/2026 CLOSED ON 7/14/2026

What are the responsibilities and job description for the Sr. Cross Domain System Engineer (100% onsite) position at Akumen, Inc?

OVERVIEW:

Akumen Inc. is seeking a highly motivated Senior Cross-Domain System Engineer who is looking to support a critical program within the Department of State and join a fast-paced engineering team.    

 

RESPONSIBILITIES:

Are you analytical and enjoy problem-solving?  Do you want to design tools that will affect an entire organization?  We are looking for a cleared Sr System Engineer who has a strong Linux development background, and an understanding of the Microsoft technology stack. You will be responsible for application automation and development for a highly visible program that will be used at a department-wide level. 

 

The employee will work on-site, at a secure government location during normal business hours in Washington, DC as required by the customer.

 

  • This role will support the development of cross-domain solutions using a variety of frameworks and languages.
  • Participate in, and contribute to, the design and architecture process for cross-domain application architecture for the various cross-domain transfer applications
  •           Perform Linux systems engineering duties such as developing demonstrable proof of concept implementations, integration, and testing across multiple platforms and applications.
  • Create methodological documentation for client requirements with the ability to translate it into the technical design
  • Liaise with engineering personnel familiar with existing product functions for potential integration into an application solution
  • Use existing web-based UI/UX frameworks to create new functionality while retaining a consistent look and feel
  • Database integration (LDAP, Postgres, etc.) and SQL query tailoring experience
  • Develop demonstrable proof-of-concept implementations of the cross-domain applications utilizing architectural design concepts and/or documents
  • Demonstrate proficiency with automated configuration management tools (Puppet, Ansible, Chef)
  • Utilize industry best practices for secure coding to produce applications that reduce attack risk and fail in a secure manner
  • In conjunction with the Certification and Accreditation (C&A) team, implement and provide support for a C&A procedure utilizing existing C&A plans and documentation
  • Implement a test procedure for the cross-domain application(s) utilizing existing documented test plans to ensure verification and validation of the product
  • Work with the customer and vendor to support field deployment and resolve issues

·       Showcase your ability to think through and resolve complex problems in a fast-paced dynamic environment is essential

  • Additionally, the ideal applicant will participate in technical design


QUALIFICATIONS:
 

  • BS degree in a relevant field or additional equivalent work experience
  • Must have a minimum of 6 years of professional experience in system engineering including Linux and Windows environments
  • Proficiency in software development with Java, ‘C’, Python, and bash shell
  • Must have experience with network application development on Linux (preferred) and/or Unix or Windows
  • Must have the ability to debug code modules and profile for performance
  • Superior technical documentation and communication skills
  • Proven record in successful relationship-building with users and stakeholders
  • Possess refined development practices, including documentation and use of source code management tools
  • Ability to build automated processes using well-known languages and frameworks such as PowerShell, CLI, python, YML, JSON, Puppet, Jenkins pipeline, Terraform, Azure Templates, Cloud Formation
  • Linux OS hardening skillS

 

Desired Qualifications:

  • Experience with virtualization platforms in an enterprise context
  • Knowledge of security protocols and fundamentals of secure OS
  • Understanding of cross-domain applications
  • Understanding of IP networking and remote desktop protocols
  • Hands-on experience using RedHat/Centos/Fedora and/or Ubuntu
  • Familiarity with cloud computing (Azure or AWS preferred)

 

CLEARANCE REQUIREMENT:

  • Must have an Active DOD Top Secret clearance, verifiable in JPAS/DISS

 

Salary.com Estimation for Sr. Cross Domain System Engineer (100% onsite) in Washington, DC
$132,618 to $166,412
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