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Freelance Mainframe Applications Developer Jobs in Washington

Help Desk Specialist

Arlington, VA · On-site

$45K - $50K/yr

Provide first and second-tier technical support to end users for PC, server, and mainframe ... Coordinate with network services, software systems engineering, and applications development teams ...

Responsibilities Peraton is seeking a Senior Software Test Engineer to join our team of qualified ... Experience with IBM Mainframe or Unisys Mainframe applications and operations * Market knowledge of ...

... DevOps, and product owners to ensure automation aligns with release goals * Provide guidance and ... Experience with IBM Mainframe or Unisys Mainframe applications and operations * Experience with the ...

Senior Software Test Engineer

Lanham, MD · On-site

$80K - $128K/yr

Responsibilities Peraton is seeking a Senior Software Test Engineer to join our team of qualified ... Experience with IBM Mainframe or Unisys Mainframe applications and operations * Market knowledge of ...

Senior Software Test Engineer

Lanham, MD · Hybrid

$110K - $143K/yr

Responsibilities Peraton is seeking a Senior Software Test Engineer to join our team of qualified ... Experience with IBM Mainframe or Unisys Mainframe applications and operations * Market knowledge of ...

... DevOps, and product owners to ensure automation aligns with release goals * Provide guidance and ... Experience with IBM Mainframe or Unisys Mainframe applications and operations * Experience with the ...

Senior Software Test Engineer

Lanham, MD · Hybrid

$110K - $143K/yr

Responsibilities Peraton is seeking a Senior Software Test Engineer to join our team of qualified ... Experience with IBM Mainframe or Unisys Mainframe applications and operations * Market knowledge of ...

... DevOps, and product owners to ensure automation aligns with release goals * Provide guidance and ... Experience with IBM Mainframe or Unisys Mainframe applications and operations * Experience with the ...

... DevOps, and product owners to ensure automation aligns with release goals * Provide guidance and ... Experience with IBM Mainframe or Unisys Mainframe applications and operations * Experience with the ...

Responsibilities Peraton is seeking a Mid-Level Software Test Engineer to join our team of ... Experience with IBM Mainframe or Unisys Mainframe applications and operations * Market knowledge of ...

Responsibilities Peraton is seeking a Mid-Level Software Test Engineer to join our team of ... Experience with IBM Mainframe or Unisys Mainframe applications and operations * Market knowledge of ...

Responsibilities Peraton is seeking a Mid-Level Software Test Engineer to join our team of ... Experience with IBM Mainframe or Unisys Mainframe applications and operations * Market knowledge of ...

Job#: 3046406 Mainframe Engineer Location: Merrifield, Virginia (Hybrid) Role Overview This ... applications, and infrastructure platforms. Technical Skills: * IBM System Automation for z/OS

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Infographic showing various Freelance Mainframe Applications Developer job openings in Washington as of August 2026, with employment types broken down into 49% Full Time, 3% Part Time, 5% Temporary, and 43% Contract. Highlights an 80% In-person, and 20% Remote job distribution.

Help Desk Specialist

TechFlow, Inc.

Arlington, VA • On-site

$45K - $50K/yr

Full-time

Re-posted yesterday


Job description

TechFlow Inc. is an employee-owned company delivering mission-critical technology, engineering, and mission support services to federal government customers. We are seeking a Help Desk Specialist to support a critical DOD program - powering the platform that securely collects, analyzes, reports, and exchanges data from Transportation Security Equipment. In this role, you will serve as a front-line resource for end users, providing responsive technical support to ensure the continued availability and performance of mission-critical systems. You will work alongside systems administrators, cybersecurity personnel, and government stakeholders in a dynamic, highly technical government setting.

Hybrid Remote: (Must have the ability to attend in person meetings Northern VA/DC Metro area)

Key Responsibilities

  • Provide first and second-tier technical support to end users for PC, server, and mainframe applications and hardware.
  • Respond to and diagnose problems through structured discussions with users, including problem recognition, research, isolation, and resolution.
  • Utilize problem management databases and help desk ticketing systems to track and resolve issues.
  • Coordinate with network services, software systems engineering, and applications development teams to restore service and identify root causes.
  • Escalate complex problems to appropriate personnel and follow through to resolution.
  • Assist in evaluating business problems and recommending vendor software packages and solutions.
  • Support the evaluation, implementation, and testing of end-user computing packages, equipment, and prototypes.
  • Consult with client management and staff regarding PC and LAN systems issues and recommend corrective actions.

Compensation: - $45,000 - $50,000 annually, commensurate with experience and qualifications.