Mainframe Developer - Remote

YO AI Labs

Atlanta, GA

Remote job

Job Description

COBOL Developer – Remote

Role Type: Contractor
Location: Remote

Role Overview

We are seeking experienced COBOL Developers to contribute their expertise to a high-impact customer project focused on training and improving next-generation AI systems. In this role, you will apply your deep knowledge of COBOL, mainframe environments, and legacy systems to evaluate technical content, document business logic, and provide expert feedback.

No prior AI experience is required—your COBOL and mainframe expertise is what matters most.

Key Responsibilities

Analyze and interpret existing COBOL codebases, workflows, and business logic.
Develop clear and accurate documentation of COBOL programs, system processes, and technical requirements.
Review and evaluate COBOL code, pseudocode, and project scenarios for accuracy and completeness.
Identify edge cases, ambiguities, potential defects, and areas requiring clarification.
Annotate COBOL scripts and technical content to support the development of high-quality AI training datasets.
Design and review test cases and scenarios representing real-world COBOL and mainframe applications.
Provide expert guidance on legacy system architecture, integrations, and dependencies.
Collaborate with project coordinators and technical experts through clear written and verbal communication.
Ensure all submitted technical materials meet high standards of accuracy, consistency, and completeness.
Support projects involving legacy-system modernization, migration, integration, or transformation where applicable.

Required Qualifications

Proven professional experience as a COBOL Developer or Mainframe Developer.
Strong proficiency in COBOL programming and legacy application environments.
Experience working with mainframe systems and related technologies.
Strong understanding of complex legacy codebases, business rules, and system workflows.
Excellent analytical and problem-solving skills.
Ability to explain complex technical concepts clearly and accurately.
Strong technical writing and documentation skills.
Exceptional attention to detail.
Ability to work independently and manage multiple deliverables in a remote environment.

Preferred Qualifications

Experience with large-scale mainframe migration, modernization, or integration projects.
Familiarity with JCL, DB2, CICS, VSAM , or other common mainframe technologies.
Experience reviewing or documenting legacy enterprise applications.
Experience creating technical test scenarios or validating business logic.
Experience working with distributed or remote technical teams.
Prior experience contributing domain expertise to AI, data, or machine-learning projects is a plus, but not required.

Skills

COBOL
Mainframe Development
Legacy Systems
JCL
DB2
CICS
VSAM
Code Analysis
Technical Documentation
Business Logic Analysis
Test Case Design
Problem Solving
Attention to Detail
Technical Communication
Remote Collaboration

Apply

Vacancy posted 7 days ago

Similar jobs that could be interesting for youBased on the Mainframe Developer - Remote in Atlanta, GA vacancy

Mainframe Developer
...Hiring: Mainframe Developer – Remote (Contract) Mode of Interview: In-Person Location: Trenton NJ We are looking for an experienced Mainframe Developer for a remote contract opportunity. Required Skills: COBOL, JCL, NATURAL, ADABAS TSO/ISPF and job scheduling...
Remote work
Mainframe
Contract work
Wall Street Consulting Services LLC
Trenton, NJ
3 days ago
Mainframe Developer
...: 25516042Reference Number: 25-00442Title: Mainframe DeveloperLocation: Wayne, NJ, 07470Posted Date... ...2-9491Company: HAN StaffingRole: Mainframe Developer Location: Wilmington DE-5 days onsite must.-Relocation is okay but NO REMOTE Candidates with mentioned skills please...
Remote work
Mainframe
Relocation
HAN Staffing
Wayne, NJ
4 days ago
Mainframe Systems Programmer
Z/OS Systems Programmer We are seeking someone with a strong background with installation, maintenance, and troubleshooting of z/OS systems, along with expertise in various system components. In order to be considered, you will need to possess deep SMP/E experience,...
Remote work
Mainframe
Calibro Corp.
United States
2 days ago
Mainframe developer IV(Remote, only W2)
...Role: Mainframe Developer IV Location: Cincinnati, OH Duration: Contract Pay Rate: $65- $70/hour on W2 Work Type: Remote TECHNICAL SKILLS Must Have Base SAS Programmer CICS COBOL COBOL Dev, QA Direct experience with AMTrust/AMAdministrator...
Remote work
Mainframe
Contract work
Immediate start
CBTS
Canton, OH
4 days ago
Mainframe Developer
...To support critical government operations, the full-time remote Mainframe Developer will design, code, unit test, and debug enhancements for health claims processing systems while collaborating with a persistent development team. Key responsibilities Design, code, and...
Remote work
Mainframe
Full time
Virtual Vocations Inc
United States
3 days ago
Mainframe developer
...Required Skills: ~8+ years of Mainframe development experience ~ Strong in COBOL, CICS, JCL, SAS, DB2, VSAM, IAM, EZT, ICETOOL, SORT and REXX ~ Need to understand API for integration ~ Need to understand databases and data mapping for different fields...
Remote work
Mainframe
Syntricate Technologies
United States
4 days ago
Mainframe developer-Remote
...Mainframe Developer With Strong VSAM Location: Columbus OH or Remote Duration: 3 Months Rate: DOE US Citizens and those authorized to work in the U.S are encouraged to apply. We are unable to sponsor at this time. Unfortunately, this is not open for third-party...
Remote work
Mainframe
Georgia IT Inc
United States
2 days ago
.NET Developer
...Description Remote ~ Candidates must be located in these states: Arizona, Connecticut,... ...Wisconsin Our client seeks experienced .NET Developers to support a large-scale modernization initiative replacing legacy mainframe applications with modern .NET-based...
Remote work
Mainframe
Contract work
Eliassen Group
United States
3 days ago
Mainframe Developer
...Job Title: Mainframe Developer Location: Remote (AZ or TX) Duration: Contract JD: Develop and maintain core business applications using COBOL, JCL, CICS, and DB2. Design and optimize batch processing, data extraction (DECAL), and reporting...
Remote work
Mainframe
Contract work
VDart Inc
Remote
3 days ago
Mainframe IMS System Programmer (Chandler-AZ/Plano-TX/Jersey City-NJ, Charlotte-NC)
$65 - $70 per hour
...Mainframe IMS System Programmer (Openings: 1 Position) Open for W2 and C2C arrangements (W2 Folks Preferred first) Location: Chandler... ...local folks) Hybrid Schedule: 3 Onsite Days (Tue, Wed, Thur) & 2 Remote Days (Mon, Fri) Duration: 6+ months, extendable Direct...
Remote work
Mainframe
Full time
Local area
3 days per week
PTR Global
Chandler, AZ
3 days ago
Mainframe Developer
...Job Summary: We are seeking a Mainframe Developer to develop, enhance, and support mission-critical applications on IBM z/OS. This role includes batch and/or online transaction processing, database work (DB2/IMS), testing, and production support. Responsibilities...
Remote work
Mainframe
Work experience placement
Macpower Digital Assets Edge
United States
3 days ago
Senior Mainframe Developer
...To support the development of Healthcare Claims applications, the remote Senior Mainframe Developer will design, develop, test, and maintain mainframe systems using COBOL, JCL, DB2, VSAM, CICS, and MQ while collaborating with cross-functional teams. Key responsibilities...
Remote work
Mainframe
Virtual Vocations Inc
United States
1 day ago
Mainframe Assembler Developer
...Title: Mainframe Assembler Developer Location: Hybrid in Addison, TX or Charlotte, NC (3 days in office 2 days remote) Relo candidates are fine We just got a new req with Client for a Mainframe Assembler Developer. Full details are below. We have a call with the...
Remote work
Mainframe
Work at office
RIT Solutions, Inc.
Summit, NJ
4 days ago
DevOps Engineer with Ariba or SAC experience - 100% Remote
...DevOps Engineer The main function of a DevOps Engineer is to design, develop, implement, test, and maintain business and computer applications software or specialized utility programs including mainframe and client/server applications, and major enhancement of existing...
Remote work
Mainframe
The Dignify Solutions, LLC
United States
2 days ago
Senior Hogan IDS Developer
...Title: Senior Hogan IDS Developer Client: Wells Fargo Location: Remote Visa: USC/GC Only Duration: 6+ Months Rate:... ...Ideal candidate will be highly skilled as a Mainframe Engineer with hands on experience with COBOL, JCL...
Remote work
Mainframe
3B Staffing LLC
United States
5 days ago
CyberLife Developer - US
...Mandatory Qualifications:5-7 years of experience as a Cyberlife Mainframe Developer with exceptional skills in software development and... ...or training a plusWork Environment: This position is fully remote within the United States onlyHome base, remote - laptop will...
Remote work
Mainframe
Minimum wage
Full time
DXC Technology
Plano, TX
19 hours ago
Mainframe / COBOL Developer
...I have an opportunity for "COBOL Developer - Brooklyn, NY (Remote till COVID). and I am looking for a candidate who can join Immediately if you... ...new requirements. Strong experience developing in Mainframe environment resolving complex and conflicting design issues...
Remote work
Mainframe
Immediate start
Navtech
New York, NY
2 days ago
Solutions Engineer
...Solutions Engineer (Rocket Zeke) 100% Remote Core Technical Skills In-depth understanding of z/OS, JCL, and system utilities. Familiarity with common mainframe job types, datasets, and execution environments. Knowledge of Zeke architecture...
Remote work
Mainframe
Equiliem
United States
4 days ago
Mainframe CICS Systems Programmer/Engineer - REMOTE
...Mainframe CICS Systems Programmer/Engineer OPEN TO REMOTE EMPLOYEE 12 months+ The Mainframe CICS Systems Programmer/Engineer is responsible for all phases... ...and must be able to interface with application developers and operations teams. The CICS engineer should have...
Remote work
Mainframe
Veterans Sourcing Group, LLC
United States
2 days ago
Remote Mainframe Developer
...Job Description Insight Global is seeking a Mainframe Developer. This person will be responsible for designing, developing, and implementing digital solutions and systems. This role requires technical expertise to architect and code software applications, perform system...
Remote work
Mainframe
Insight Global
United States
2 days ago
Mainframe DB2 Systems Programmer (Chandler-AZ/Plano-TX/Jersey City-NJ, Charlotte-NC)
$65 - $70 per hour
...Mainframe DB2 Systems Programmer (Openings: 1 Position) Open for W2 and C2C arrangements (W2 Folks Preferred first) Location: Chandler... ...folks) Hybrid Schedule: 3 Onsite Days (Tue, Wed, Thur) & 2 Remote Days (Mon, Fri) Duration: 6+ months, extendable Direct client...
Remote work
Mainframe
Full time
Local area
Weekend work
3 days per week
PTR Global
Chandler, AZ
3 days ago
Mainframe Developer - Remote
...Job Description Job Description COBOL Developer – Remote Role Type: Contractor Location: Remote Role Overview We are seeking... ...In this role, you will apply your deep knowledge of COBOL, mainframe environments, and legacy systems to evaluate technical content...
Remote job
Mainframe
For contractors
YO AI Labs
Dallas, TX
7 days ago
Software Engineer IV
...Harness CI/CD Duration: 5 months Remote Position Overview We are seeking a... ...implementation. Key Responsibilities Develop, enhance, and remediate applications... ...remotely with C# developers, mainframe developers, the Scrum Master, and the team...
Remote work
Mainframe
Saxon Global
United States
1 day ago
283374 Mainframe Developer
$100k - $120k
...exploring the opportunity. Job Details:- Role:- Mainframe z/OS System Programmer Salary :- Salary Range- $100,000... ...right to work with the third party directly. Location:- Remote Job Type:- Full Time Hiring Job Description...
Remote work
Mainframe
Full time
Immediate start
Weekend work
SFE
Remote
2 days ago
Senior Mainframe COBOL Developer with Insurance functions
...Senior Mainframe COBOL Developer With Insurance Functions Location: Remote (local to Dallas preferred as candidate can visit the office as and when required). Duration: Longterm Contract • 10+ years of hands on experience developing and supporting mainframe applications...
Remote work
Mainframe
Contract work
Work at office
Local area
E-Solutions
United States
2 days ago
Full Stack Engineer
$49 - $53 per hour
...Title: Remote Full Stack Engineer Location: Remote ( needs to be able to work in EST... ...Must haves: ~3–5+ years as a full stack developer ~ Proficiency with Apex and/ or Java... ...PostgreSQL, MongoDB Atlas, DynamoDB, DocumentDB, Mainframe Event Passing / Messaging: SNS/SQS,...
Remote work
Mainframe
Contract work
Immediate start
Insight Global
Indianapolis, IN
4 days ago
Game Developer
$80k - $90k
...Role: Job Title: Lead Java Full Stack Developer Minimum Qualifications Strong... ...Healthcare Insurance domain experience. Mainframe experience is a plus. Strong... ...problem-solving skills Location: Remote Salary and Other Compensation: The...
Remote work
Mainframe
Hourly pay
Full time
Temporary work
Ascendion
United States
3 days ago
MTS Developer
...ACI MTS Production support Role: MTS Developer Experience: 8–10 Years Location: Atlanta, GA / Remote Key Skills: Strong experience in ACI Money Transfer... .../Linux/AIX, and Unix commands Knowledge of Mainframe (JCL, VSAM) Experience with Oracle, IBM MQ,...
Remote work
Mainframe
Temporary work
Delan Associates, Inc
Remote
more than 2 months ago
Sr Mainframe Systems Programmer
$158.5k - $198k
...are eligible for this position.About this opportunityThis is a remote position involving close collaboration with a small, specialized... ...(fTelcordia) products.We are looking for an experienced Senior Mainframe Systems Programmer to join our z/OS platform software...
Remote work
Mainframe
Temporary work
Casual work
Cradlepoint
New York, NY
1 day ago
Principal z System ISV Infrastructure Software Engineer - Remote
$112.7k - $193.2k
...leader in health care innovation. Our teams develop cutting-edge solutions that help people... ...and optimizing our high-capacity mainframe enterprise infrastructure. Our environment... ...infrastructure.You'll enjoy the flexibility to work remotely * from anywhere within the U.S. as you...
Remote work
Mainframe
Minimum wage
Full time
Work experience placement
Work at office
Local area
Weekend work
UnitedHealth Group
Eden Prairie, MN
4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Mainframe Developer - Remote. Be the first to apply!