Full-Time

Mainframe System Programmer

Updated on 8/1/2026

Deadline 7/20/27
AMERICAN SYSTEMS

AMERICAN SYSTEMS

1,001-5,000 employees

IT and engineering services for government

Compensation Overview

$120k - $140k/yr

No H1B Sponsorship

McLean, VA, USA

In Person

US Citizenship, US Top Secret Clearance Required

Category
IT & Security (1)
Required Skills
TCP/IP
Agile
Mainframe Computing
REST APIs
DevOps

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Requirements
  • All candidates must be United States citizens.
  • Proven system programmer experience managing, maintaining, and configuring Virtual Telecommunications Access Method and application programming interface as part of Systems Network Architecture for an IBM mainframe environment.
  • Demonstrated system programmer experience managing, maintaining, and configuring TCP/IP.
  • Experience working with z/OS systems, including z/OS 2.4, and Pageant encryption setup and configuration.
  • Experience with SSH, TLS, SFTP, FTP network communication protocols.
  • Experience participating as a subject matter expert in meetings with Information Assurance to assist in documenting security controls.
  • Experience using IBM Multi-Factor Authentication, CL/SuperSession or another multi-session product, IODF, and BMC Control-M.
  • Strong analytical skills and attention to detail.
  • Excellent written and verbal communication skills to communicate with key stakeholders, process owners, and customers to manage expectations, eliminate gaps, and ensure success.
  • Ability to work independently and as part of a team.
  • Must be able to pass a federal background investigation and obtain a Public Trust.
Responsibilities
  • Provide 24x7/365 remote support services and on-premises response as needed.
  • Use IBM SMP/E software product installation and maintenance utilities.
  • Use IBM Job Control Language and utility programs such as IEBGENER to maintain z/OS software products.
  • Use IBM file structures including HFS, ZFS, and PDS, TSO ISPF panels, IBM SDSF or an equivalent independent software vendor product, and IBM DFSMS data storage.
  • Provide technical consulting and analysis of new technologies, implementation strategy, and impact to production.
  • Independently diagnose and resolve trouble calls in technical areas.
  • Develop and implement technical documentation and technical specifications in accordance with established requirements and schedules.
  • Review proposed policy, regulation, and procedural changes to determine their impact on the area of responsibility.
  • Develop on-the-job training programs for new technology and software package developments.
  • Participate in Agile project management and a DevSecOps culture as required.
Desired Qualifications
  • A bachelor's degree in information systems or a related field is preferred.

AMERICAN SYSTEMS delivers information technology and engineering services to U.S. government clients as an employee-owned government contractor. It focuses on IT and enterprise services, software development, and systems engineering, with offerings such as legacy systems migration, mobile app development, and user experience design. The company operates primarily for federal agencies, including the Intelligence Community, by winning government contracts to support national security initiatives and mission-critical programs. Its employee-owned structure aligns workforce interests with company success, differentiating it from typical contractor firms by giving employees a stake in outcomes and accountability in delivering technical and engineering solutions to national security and IT needs.

Company Size

1,001-5,000

Company Stage

N/A

Total Funding

N/A

Headquarters

Chantilly, Virginia

Founded

1975

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Simplify Jobs

Simplify's Take

What believers are saying

  • Epsilon added 400-plus employees and expanded managed IT and cybersecurity reach.[15]
  • Federal demand for Zero Trust, monitoring, and AI-resistant security supports pipeline growth.[15]
  • Large defense programs and contract vehicles provide recurring revenue opportunities.[13][11]

What critics are saying

  • Federal budget delays directly stall task orders, recompetes, and new awards.[13][11]
  • Large acquisitions create integration, culture, and contract-transfer execution risk.[15]
  • Intelligence and defense customers punish any AI governance or cyber failure immediately.[15][1]

What makes AMERICAN SYSTEMS unique

  • 100% employee-owned since 2015, aligning workforce incentives with contract execution.[1][14]
  • Mission-critical federal contractor spanning IT, engineering, test, and training services.[2][10]
  • ConnectGPT and perfect CMMC Level 2 signal disciplined, secure AI adoption.[15][3]

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

Paid Vacation

Paid Sick Leave

401(k) Retirement Plan

Professional Development Budget

Tuition Reimbursement

Company News

GlobeNewswire
Sep 8th, 2025
AMERICAN SYSTEMS Completes Acquisition of Epsilon, Inc.

CHANTILLY, Va., Sept. 08, 2025 (GLOBE NEWSWIRE) -- AMERICAN SYSTEMS, a leading provider of mission essential and information engineering services to federal customers, today announced the acquisition of Epsilon, Inc. (Epsilon), a managed IT and cybersecurity leader headquartered in Weaverville, NC. The acquisition will result in more than 400 new employees joining AMERICAN SYSTEMS, further increasing the company’s scale and capabilities.This transaction marks the largest acquisition in AMERICAN SYSTEMS’ 50-year history. The addition of Epsilon’s multi-tenant service delivery model, its broad geographical footprint, and its federal and commercial market expertise brings significant new capabilities and economies of scale to AMERICAN SYSTEMS. This expanded capability enables AMERICAN SYSTEMS to even better address the rapidly evolving needs of existing and new customers across sectors as the company partners with them to accelerate mission outcomes and increase efficiency."Acquisitions are an important element of our growth strategy, and we work hard to ensure that we select companies that are a good fit for us, both strategically and culturally,” said John Steckel, AMERICAN SYSTEMS’ President and CEO

WashingtonExec
Sep 8th, 2025
AMERICAN SYSTEMS Buys Epsilon

AMERICAN SYSTEMS buys Epsilon.

Washington Technology
Sep 2nd, 2025
Tech, finance and operations leadership moves across the market

He succeeds Brian Neely, who retired after two decades as American Systems' CIO.

WashingtonExec
Aug 26th, 2025
Srinivas Rautwar Named AMERICAN SYSTEMS CIO

AMERICAN SYSTEMS has promoted Srinivas Rautwar to chief information officer, effective Aug. 25.

WashingtonExec
Aug 24th, 2025
AMERICAN SYSTEMS Earns CMMC Level 2 Certification with Perfect Score

The certification strengthens AMERICAN SYSTEMS' ability to safeguard Controlled Unclassified Information and mitigate the risk of cyberattacks and data breaches.