Mainframe Assembler Developer
Vienna , VA
Experience: 0
Category: Information Technology
Contractor Work Model: Remote
Brand: System One
Job ID: 351383
Date Posted: 05/28/2026
Shortcut: http://jobs.systemone.com/X5S6iL
Job Title: Senior Mainframe Assembler Programmer
Location: Remote
Pay Rate: Open to W2 and established 1099's
Position Type: Multiyear Contract
Candidates must be eligible to work in the US without sponsorship and must live in the US
The position focuses heavily on IBM mainframe technologies and requires deep hands-on expertise in COBOL, Assembler, DB2, CICS, JCL, and batch processing.
Candidates must have a minimum of 10 years (ideally closer to 15 years) of professional experience and recent, hands on experience with Assembler, COBOL, and CICS.
Requirements
• MUST have extensive Assembler, CICS and COBOL
• Strong preference for this developer to have experience within an Agile environment
• Working with FIS OPF (Open Payments Framework), their ACH processing platform (Any experience FIS Connex experience is a bonus – “not required”)
• Minimum 10 years experience with COBOL, DB2, Command-Level CICS, JCL, Batch and TSO/ISPF
• Strong technical coding skills with a proven track record of adherence to process
• Familiarity with SDLC - Software Development Life Cycle
• Demonstrates an understanding of FIS systems and the financial services industry (big plus)
• Analyze, define and document technical design for data, workflow, logical processes, hardware and operating systems environment, interface with other systems, internal and external controls and output
• Design and code new application solutions; integrate changes to existing solutions
• Develop and maintain solution documentation
• Maintain and monitor systems/applications after implementation
• Prepare test data; conduct unit and string testing; debug code and systems components
• Troubleshoot and resolve application/solution problems
• Conduct research and analysis; make recommendations
• Working knowledge of application development including determining, developing, testing, and implementing system requirements; designing, coding, debugging applications
• Basic skill resolving conflicting requests and meeting changing requirements
• Effective database and presentation software skills
• Effective organizational, planning and time management skills
• Effective research, analytical, and problem solving skills
• Effective skill analyzing and organizing problems or work processes for technical solutions
• Effective skill designing and deploying new, upgraded and/or existing systems
• Effective skill in systems analysis, workflow, or procedural analysis
• Effective skill troubleshooting and resolving technical problems
• Effective verbal and written communication skills
• Serena ChangeMan ZMF source packaging/management tool experience (nice to have).
• Development experience with IBM Mainframe Assembly language, with heavy use of the Concept 14 macros set add-on product (nice to have).
System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
#M-
#LI-
Ref: #851-Rockville-S1
-
Assembler
Riverdale, New Jersey
Job Title: Assembler Location: Riverdale, New Jersey Type: Contract To Hire Compensation: $17.00 - $20.25 hourly Contractor Work Model: Onsite – onsite Hours: 2nd Shift (4PM to 12:30AM) Responsibilities Assemble and test new and developing product line...
Date Posted: 04/22/2026 Recommended
-
Senior Mainframe Engineer
Merrifield, VA
Job Title: Senior Mainframe Engineer Location: remote Pay rate: open to W2 and established 1099s Position type: multiyear contract We are currently seeking a Senior Mainframe Programmer/Support Analyst with a minimum of 10 years of professional experie...
Date Posted: 05/14/2026 Recommended
-
Mechanical Assembler
Elmira Heights, NY
Job Title: Mechanical Assembler Location: Elmira Heights, NY Type: Direct Hire Compensation: $20.00 - $23.00 Contractor Work Model: Onsite Hours: 40.0 Responsibilities Perform highly skilled maintenance, installation, repair, and troubleshooting work i...
Date Posted: 05/15/2026 Recommended
-
Assembler
Wall, New Jersey
Job Title: Assembler Location: Wall, New Jersey Type: Contract Compensation: $19 hourly Contractor Work Model: Onsite Hours: Monday-Friday | 11:00 pm to 6:30 am Assembler Job Duties: Setup/Operate/Troubleshoot production machinery Document activities a...
Date Posted: 05/20/2026 Recommended
-
Assembler
Wall, New Jersey
Job Title: Assembler Location: Wall, New Jersey Type: Contract Compensation: $19 hourly Contractor Work Model: Onsite Hours: Monday-Friday | 6:30 am - 3:00 pm Assembler Job Duties: Setup/Operate/Troubleshoot production machinery Document activities acc...
Date Posted: 05/20/2026 Recommended
-
Assembler
Wall, New Jersey
Job Title: Assembler Location: Wall, New Jersey Type: Contract Compensation: $19 hourly Contractor Work Model: Onsite Hours: Monday-Friday | 3:00 pm - 11:00 pm Assembler Job Duties: Setup/Operate/Troubleshoot production machinery Document activities ac...
Date Posted: 05/28/2026 Recommended
-
Assembler Rework II
Irvine, CA
Individual Contributor in charge of performing, within his / her area of technological specification, tasks in the manufacturing process in accordance with the manufacturing documentation and the time allocated, using the resources available (including...
Date Posted: 05/27/2026 Recommended
-
Mechanical Assembler
Salt Lake City, Utah
Job Title: Mechanical Assembler Location: Salt Lake City, Utah Type: Contract To Hire Contractor Work Model: Onsite Position Summary: The Mechanical Final Assembler is responsible for the mechanical and structural assembly of rail vehicles in accordanc...
Date Posted: 05/14/2026 Recommended
-
Electro-Mechanical Assembler
Perkasie, PA
Job Title: Electro-Mechanical Assembler Location: Perkasie, PA (Onsite) Type: Contract Compensation: $18-$23/hour (depending on experience) Hours: Monday-Friday, 7:00am-3:30pm Overview A growing manufacturing team is hiring Electro-Mechanical Assembler...
Date Posted: 05/04/2026 Recommended
-
Electrical Final Assembler
Salt Lake City, Utah
Job Title: Electrical Final Assembler Location: Salt Lake City, Utah Type: Contract To Hire Contractor Work Model: Onsite As an Electric Final Assembler you are responsible for proper assembly of all wiring and electrical components in the project. You...
Date Posted: 04/30/2026 Recommended
-
Mechanical Assembler
Cranberry Township, Pennsylvania
Job Title: Mechanical Assembler Location: Cranberry Twp, PA Type: Contract-to-Hire Compensation: 21-22/hr Contractor Work Model: Onsite Objective Assemble industrial equipment and machine components by following specifications, drawings, and work instr...
Date Posted: 05/20/2026 Recommended
-
Mainframe Architect
Pittsburgh, PA
Mainframe Architect 100% Onsite (5 Days/Week) Pittsburgh, PA, Cleveland, OH, Strongsville, Birmingham, AL, Dallas, Phoenix, AZ Role Summary The Solution Architect Lead is responsible for designing, testing, and implementing scalable and highly availabl...
Date Posted: 04/15/2026 Recommended
-
Electrical Pre Assembler
Salt Lake City, UT
Job Title: Electrical Pre Assembler Location: Salt Lake City, UT Type: Contract To Hire Compensation: $19.00 - $21.00 per hour Contractor Work Model: Onsite – onsite Hours: 40.0 hours per week Responsibilities Assemble and install electrical wiring, ca...
Date Posted: 05/21/2026 Recommended
-
Full Stack .NET Developer
Pensacola, FL
Full Stack .NET Developer .NET, JavaScript, React, Azure Cloud 10+ yrs of experience Hybrid 3 days a week on-site, Pensacola, FL Hourly Rate: $75-$80/hr. range W2 Multiyear Contract System One has a multi-year contract opening for a senior-level full-s...
Date Posted: 04/02/2026 Recommended
-
Software Engineer Lead
Maryland, MD
Mainframe Engineer Lead REMOTE Contract Industry: Banking / Financial Services Key Responsibilities Consult with engineering teams to evaluate hardware/software interfaces and define system requirements Maintain and enhance software systems and automat...
Date Posted: 04/22/2026 Recommended
-
Software Engineer Lead
Maryland, MD
Software Engineer Lead REMOTE Contract Industry: Banking / Financial Services Key Responsibilities Consult with engineering teams to evaluate hardware/software interfaces and define system requirements Maintain and enhance software systems and automati...
Date Posted: 04/22/2026 Recommended
-
ACF2 Security Administrator
Farmers Branch, TX
Position Title: ACF2 Security Administrator Position Location: PA - Pittsburgh, TX - Dallas, AZ - Phoenix, AL - Birmingham, OH - Strongsville Duration – 6+ months Employment Type - This is for W2 Employment Industry background: Financial / IT Security ...
Date Posted: 03/13/2026 Recommended
-
Business Systems Analyst
Farmers Branch, TX
Tittle: Business Systems Analyst Location: Pittsburgh, PA or Dallas, TX or Birmingham, AL Cleveland, OH or Phoenix, AZ Work Mode : 5 Days Onsite Duration: Contract to Hire Years Of Exp Required: 8+ Years Function of the Group: Revenue support Initiativ...
Date Posted: 04/30/2026 Recommended
-
Business Systems Analyst
Farmers Branch, TX
Tittle: Business Systems Analyst Location: Pittsburgh, PA or Dallas, TX or Birmingham, AL Cleveland, OH or Phoenix, AZ Work Mode : 5 Days Onsite Duration: Contract to Hire Years Of Exp Required: 8+ Years Function of the Group: Revenue support Initiativ...
Date Posted: 04/30/2026 Recommended
-
I&C Design Engineer
Bellevue, WA
Job Title: Design Engineer Type: Contract Compensation: $52 - $85 hourly Contractor Work Model: Remote Overview: We are seeking a talented and experienced Design Engineer specializing in Instrumentation and Control (I&C) for a contract opportunity with...
Date Posted: 05/26/2026 Recommended
-
Senior IT Analyst
Merrifield, VA
Job Title: Senior IT Analyst Location: remote Pay Rate: open to W2 and established 1099's Position type: multiyear contract This is a long term, remote contracting position for candidates who live in the United States and have a minimum of 10 years of ...
Date Posted: 04/30/2026 Recommended
-
Manager Building Maintenance
Merrifield, VA
Job Title: Manager Building Maintenance Location: Onsite Vienna, VA Pay Rate: Open to Both C2C and W2 options Position Type: Multiyear Contract Description To analyze, determine, and complete building maintenance requirements pertaining to construction...
Date Posted: 05/06/2026 Recommended
-
Electrical, Instrumentation & Controls Engineer
New Castle, Delaware
Job Title: Electrical, Instrumentation & Controls Engineer Location: New Castle, Delaware Type: Direct Hire Compensation: $95000 - $125000 annually Contractor Work Model: Onsite Job Summary: The Electrical, Instrumentation & Controls Engineer is respon...
Date Posted: 04/27/2026 Recommended
-
Security Analyst
Farmers Branch, TX
Security Analyst Pittsburgh, PA, Cleveland, OH, Strongsville, Birmingham, AL, Dallas, TX, Phoenix, AZ Roles & Responsibilities Perform tasks related to mainframe security administration Evaluate and manage ACF2 rules associated with Systemware access A...
Date Posted: 03/16/2026 Recommended
-
Bus Systems Analyst Lead
Farmers Branch, TX
Title: Business Systems Analyst Lead Position Location: Dallas, TX/Pittsburgh, PA/ Cleveland, OH - 5 Days Onsite Function of the Group: Mitigates Risk Initiatives/Projects: The resource will assist with ongoing change requests, automation enhancements,...
Date Posted: 03/09/2026 Recommended
-
Technical Business Analyst
Oklahoma City, Oklahoma
Job Title: Technical Business Analyst Location: Oklahoma City, Oklahoma Type: Direct Hire Experience: 5 Compensation: $90,000.00 - $100,000.00 Contractor Work Model: Onsite – onsite Hours: 40.0 Security Clearance: Not specified Overview We are seeking ...
Date Posted: 05/21/2026 Recommended
-
DCN Electrical Engineer
Houston, Texas
Job Title: DCN Electrical Engineer Location: Houston, Texas Type: Direct Hire Compensation: $100,000.00 - $150,000.00 Contractor Work Model: Hybrid – onsite and remote About the Company Our client is an innovative engineering and technology organizatio...
Date Posted: 05/20/2026 Recommended
-
Senior Technical Business Analyst
Tulsa, Oklahoma
Job Title: Business Analyst Location: Tulsa or Oklahoma City, Oklahoma Type: Direct Hire Compensation: $90,000.00 - $100,000.00 Contractor Work Model: Onsite – onsite Hours: 40.0 Overview We are seeking a highly skilled Technical Data Business Analyst ...
Date Posted: 05/22/2026 Recommended
-
Electrical Designer
Richland, WA
Job Title: Electrical Designer Location: Richland, WA Type: Contract Compensation: $45.00 - $65.00 Contractor Work Model: Onsite – onsite Hours: 40.0 Overview: System One is seeking an Electrical Designer for a 6-month contract with the possibility of ...
Date Posted: 05/20/2026 Recommended
-
DevSecOps Engineer & MBSE Modeler
Rockville, Virginia
DevSecOps Engineer & MBSE Compensation: $140,000 - 150,000 Security Clearance: Secret clearance required to start Must be able to obtain Top Secret Location: Rockville, MD with occasional travel locally (Aberdeen Proving Ground, Pentagon, CARDEROCK) We...
Date Posted: 05/27/2026 Recommended