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As 400 Computer Operator Jobs in Washington (NOW HIRING)

M&J Engineering

CAD Operator

Arlington, VA · On-site

$22.25 - $30.50/hr

M&J is seeking a CAD Operator to provide drafting, design, and technical drawing support for WMATA ... Prepare as-built drawings, design revisions, and redline updates based on field data and ...

Battelle Memorial Institute

Computer Engineer

Chantilly, VA · On-site

$115K - $160K/yr

... as Go or Rust * Apply software development expertise to the analysis of compiled custom operating ... Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, or a related ...

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As 400 Computer Operator information

What is the difference between As 400 Computer Operator vs AS/400 System Administrator?

AspectAs 400 Computer OperatorAS/400 System Administrator
CredentialsTypically requires a high school diploma or equivalent; certifications like IBM Certified System Operator are commonRequires similar certifications plus additional skills in system management and networking
Work EnvironmentOperates on the AS/400 mainframe, monitoring system operationsManages, maintains, and configures the AS/400 system environment
Job ResponsibilitiesRuns scheduled jobs, monitors system performance, handles basic troubleshootingPerforms system setup, troubleshooting, security management, and performance tuning

While both roles work with the IBM AS/400 system, the As 400 Computer Operator primarily monitors and runs scheduled tasks, whereas the AS/400 System Administrator handles system management, configuration, and troubleshooting. The administrator role requires more technical expertise and responsibilities.

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Infographic showing various As 400 Computer Operator job openings in Washington as of August 2026, with employment types broken down into 1% As Needed, 81% Full Time, 14% Part Time, and 4% Contract. Highlights an 79% Physical, 1% Hybrid, and 20% Remote job distribution.

CAD Operator

M&J Engineering

Arlington, VA • On-site

$22.25 - $30.50/hr

Other

Medical, Dental, Vision, Life, Retirement

Re-posted 11 days ago

Job description

Overview
M&J Engineering, D.P.C. is a quality provider of multi-disciplined consulting services with over 300 employees. Since its inception in 2004, M&J has grown into diversified provider of engineering, construction management, construction inspection, technology, and environmental services to a broad range of clients, including federal, state and city/local agencies, private owners, architects, engineers and contractors.
M&J Engineering is a leader in construction management and inspection, ITS, mechanical, electrical, wastewater, water supply, tunnel airport, port, marine/coastal, environmental engineering, and design-build services for both new infrastructure projects and renovations.
M&J bases its employment and personnel decisions on the principles of Equal Employment Opportunity, with the intent to further the Company's Affirmative Action commitment. M&J does not discriminate on the basis of race, color, religion, national origin, sex, sexual orientation, pregnancy, gender identity or expression, age, disability, genetic information, marital status, citizenship status, employment status, veteran or military status, or any other category protected by law. Our Company vigorously pursues opportunities to recruit and develop job candidates who have the desire and potential for becoming qualified employees through our Affirmative Action Plan.
M&J is seeking a CAD Operator to provide drafting, design, and technical drawing support for WMATA's engineering and construction projects under the task order.
Responsibilities
  • Create and update detailed 2D and 3D drawings, plans, and schematics using AutoCAD, MicroStation, or other CAD software as required by WMATA standards.
  • Prepare as-built drawings, design revisions, and redline updates based on field data and engineering markups.
  • Maintain drawing libraries, layer standards, and document control in accordance with WMATA's CAD and records management procedures.
  • Collaborate with engineers, project schedulers, and construction teams to incorporate design changes and ensure drawing accuracy.
  • Support the development of plans for track layouts, facilities, utilities, electrical systems, and civil/structural components.
  • Perform basic quantity take-offs, dimensioning, and layout verification for engineering and construction support.
  • Assist in the preparation of presentation materials, technical graphics, and exhibits for project reports or stakeholder reviews.
  • Ensure all drawings comply with applicable WMATA CAD standards, engineering codes, and safety requirements.
  • Coordinate with other disciplines to ensure consistency and alignment of multi-discipline drawings.
  • Attend required meetings and perform other duties as assigned.

Qualifications
  • A minimum of a bachelor's degree in Drafting, Engineering Technology, or a related field.
  • 5+ years of professional experience in CAD drafting for engineering, architecture, or construction projects.
  • Proficiency in AutoCAD (2D and 3D) and familiarity with MicroStation.
  • Strong understanding of engineering drawing conventions, symbols, scales, and layouts.
  • Experience preparing and maintaining detailed design drawings, schematics, and as-builts.
  • Excellent attention to detail and organizational skills.
  • Ability to interpret engineering sketches, field notes, and markups accurately.
  • Effective communication skills and ability to work collaboratively with technical teams.
  • Experience supporting transportation, government, or public sector clients (WMATA experience is highly desirable).
  • Familiarity with WMATA's CAD standards, design templates, and drawing control systems.
  • Knowledge of engineering disciplines such as civil, mechanical, or electrical design preferred.
  • Certification in AutoCAD or similar CAD programs is desirable.

Benefits
M&J is a leader in providing quality engineering consulting services to a diverse and exciting client base. We attract experienced professionals who understand proactive client service, safety, risk management and loss prevention practices, quality control, teamwork, and the development of younger staff. We seek employees who enjoy their work, desire continuous improvement, and want to contribute to the vision and growth of a quality, employee-owned, professional firm. To all full-time employees we provide a comprehensive package of benefits, including medical, dental and eye insurance, 401(k) retirement plan, life insurance, etc. Salary will depend on experience and credentials.

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