H-1B Visa Senior Mainframe Developer Jobs
Senior Mainframe Developer roles qualify as H-1B visa specialty occupations under USCIS standards, requiring at least a bachelor's degree in computer science or a related field. Financial services, insurance, and government contractors are the heaviest sponsors. Petition cap deadlines and prevailing wage levels vary by location and employer size.
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Get Access To All JobsRole: Mainframe IMS Application DBA
Location: Phoenix, AZ
Duration: Long term
We are seeking an experienced Mainframe IMS Application DBA (IMS DBA Analyst) to manage and support IMS database environments in a high-availability enterprise setting. This role is responsible for database design support, performance optimization, data integrity, and backup/recovery operations for mission-critical applications running on IBM z/OS. This role requires employees to live in or around the Phoenix, AZ area. You will be responsible to be onsite 3 days a week. We will consider candidates who are willing to relocate to the area.
Key Responsibilities:
- Install, configure, and maintain IMS database environments (IMS DB)
- Support and manage different IMS database types:
- Full Function DB
- Fast Path DB
- HALDB (High Availability Large Databases)
- Perform database administration activities:
- Database definition, allocation, and dataset management
- REORGs and space management to maintain performance
- Manage IMS control structures:
- DBD, PSB, ACB libraries, and IMS Catalog
- Execute and support IMS utilities:
- Load / Unload
- Reorganization
- Image Copy
- Recovery utilities (e.g., DFSURGL0, DFSUICP0)
- Monitor database performance and resolve issues:
- Access path inefficiencies
- Space constraints
- Application-related data issues
- Abends and data inconsistencies
- Collaborate with:
- Application development teams (DL/I access, database design)
- IMS System Programmers (performance and tuning)
- Operations teams (batch and online processing)
- Participate in design, development, and implementation of complex databases or maintenance and support of the infrastructure supporting IMS databases, often using new technologies and emerging methodologies.
- Manage multiple, moderately complex projects and may direct activities of a team related to special initiatives or operations. Routine accountability is for technical knowledge and capabilities as a team member or as an individual contributor.
- Design technical solutions to match business application requirements
- Create process flow charts and related procedural documentation.
- Perform database recovery of all types (Image Copy recovery, PIT recovery).
- Provide independent application development support
Required Skills & Qualifications:
- Minimum 7 years of DBA experience supporting IMS databases in a z/OS environment using Sysplexed Data Sharing. Must have knowledge of Full Function, Fast Path, and HALDB databases using Secondary Indexing, Logical Relationships, Sparsing Routines (Assembler), Replication, Compression, Encryption. Database performance and tuning, Database monitoring and troubleshooting, Physical database design and build, Backup and recovery
- Strong experience with IBM z/OS environment
- Hands-on experience as IMS Application DBA (IMS DB)
- Experience with IMS utilities and DB maintenance activities
- Experience troubleshooting:
- Database abends (Uxxx, S0Cxx)
- Data corruption or integrity issues
- Familiarity with:
- JCL, TSO/ISPF, SDSF, REXX
- Batch and online IMS environments (IMS DB/DC)
- IMS Database Administration Utilities, BMC utility and monitoring tools or equivalent.
Preferred Qualifications:
- Experience integrating IMS with:
- DB2, CICS, MQ, and distributed systems
- Experience with performance tools (e.g., OMEGAMON, MainView)
- Exposure to IMS modernization (APIs, z/OS Connect)
- Knowledge of scripting/automation (REXX)
- Experience in large-scale IMS database migrations or consolidation
- Exposure to data replication or data integration solutions
- Experience in regulatory/compliance-driven environments (SOX, PCI, etc.)
- Management procedures and/or tools (ISPW, Service Now). Experience with VISIO a plus.
Role: Mainframe IMS Application DBA
Location: Phoenix, AZ
Duration: Long term
We are seeking an experienced Mainframe IMS Application DBA (IMS DBA Analyst) to manage and support IMS database environments in a high-availability enterprise setting. This role is responsible for database design support, performance optimization, data integrity, and backup/recovery operations for mission-critical applications running on IBM z/OS. This role requires employees to live in or around the Phoenix, AZ area. You will be responsible to be onsite 3 days a week. We will consider candidates who are willing to relocate to the area.
Key Responsibilities:
- Install, configure, and maintain IMS database environments (IMS DB)
- Support and manage different IMS database types:
- Full Function DB
- Fast Path DB
- HALDB (High Availability Large Databases)
- Perform database administration activities:
- Database definition, allocation, and dataset management
- REORGs and space management to maintain performance
- Manage IMS control structures:
- DBD, PSB, ACB libraries, and IMS Catalog
- Execute and support IMS utilities:
- Load / Unload
- Reorganization
- Image Copy
- Recovery utilities (e.g., DFSURGL0, DFSUICP0)
- Monitor database performance and resolve issues:
- Access path inefficiencies
- Space constraints
- Application-related data issues
- Abends and data inconsistencies
- Collaborate with:
- Application development teams (DL/I access, database design)
- IMS System Programmers (performance and tuning)
- Operations teams (batch and online processing)
- Participate in design, development, and implementation of complex databases or maintenance and support of the infrastructure supporting IMS databases, often using new technologies and emerging methodologies.
- Manage multiple, moderately complex projects and may direct activities of a team related to special initiatives or operations. Routine accountability is for technical knowledge and capabilities as a team member or as an individual contributor.
- Design technical solutions to match business application requirements
- Create process flow charts and related procedural documentation.
- Perform database recovery of all types (Image Copy recovery, PIT recovery).
- Provide independent application development support
Required Skills & Qualifications:
- Minimum 7 years of DBA experience supporting IMS databases in a z/OS environment using Sysplexed Data Sharing. Must have knowledge of Full Function, Fast Path, and HALDB databases using Secondary Indexing, Logical Relationships, Sparsing Routines (Assembler), Replication, Compression, Encryption. Database performance and tuning, Database monitoring and troubleshooting, Physical database design and build, Backup and recovery
- Strong experience with IBM z/OS environment
- Hands-on experience as IMS Application DBA (IMS DB)
- Experience with IMS utilities and DB maintenance activities
- Experience troubleshooting:
- Database abends (Uxxx, S0Cxx)
- Data corruption or integrity issues
- Familiarity with:
- JCL, TSO/ISPF, SDSF, REXX
- Batch and online IMS environments (IMS DB/DC)
- IMS Database Administration Utilities, BMC utility and monitoring tools or equivalent.
Preferred Qualifications:
- Experience integrating IMS with:
- DB2, CICS, MQ, and distributed systems
- Experience with performance tools (e.g., OMEGAMON, MainView)
- Exposure to IMS modernization (APIs, z/OS Connect)
- Knowledge of scripting/automation (REXX)
- Experience in large-scale IMS database migrations or consolidation
- Exposure to data replication or data integration solutions
- Experience in regulatory/compliance-driven environments (SOX, PCI, etc.)
- Management procedures and/or tools (ISPW, Service Now). Experience with VISIO a plus.
See all 135+ H-1B Visa Senior Mainframe Developer Jobs
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Get Access To All JobsTips for Finding H-1B Visa Sponsorship as a Senior Mainframe Developer
Verify your SOC code before applying
Senior Mainframe Developer roles typically file under SOC 15-1252 (Software Developers). Confirm the employer's LCA uses this code before signing an offer. A mismatched code can trigger DOL scrutiny and delay certification.
Target industries with mainframe-dependent operations
Banks, insurance carriers, federal contractors, and healthcare payers run legacy COBOL and z/OS environments that newer graduates can't support. These employers file H-1B petitions annually because qualified candidates are scarce and turnover risk is high.
Check prevailing wage levels using OFLC Wage Search
Mainframe roles often land at wage Level III or IV due to the specialized skill set. Run the OFLC Wage Search for your target metro before negotiating so you know the DOL floor your employer must certify to.
Use Migrate Mate to filter verified H-1B sponsors
Search Migrate Mate to identify employers with confirmed LCA filing history for mainframe and systems developer roles. This filters out employers who list H-1B sponsorship as optional but have no actual filing track record.
Prepare documentation of legacy system experience early
USCIS specialty occupation RFEs for mainframe roles often challenge whether the position requires a degree. Assembling your project history, architecture documents, and employer attestations before filing strengthens the petition against that challenge.
Negotiate cap-gap coverage into your start date
If you're on OPT when you receive an H-1B approval, cap-gap rules extend your work authorization through September 30. Confirm your employer's start date reflects this window so there's no gap between OPT expiry and H-1B activation.
H-1B Visa Senior Mainframe Developer: Frequently Asked Questions
Does a Senior Mainframe Developer role qualify as an H-1B specialty occupation?
Yes. USCIS classifies Senior Mainframe Developer positions as specialty occupations because they require at least a bachelor's degree in computer science, information systems, or a closely related field. The specialized nature of z/OS, COBOL, and JCL environments reinforces the degree requirement, which is the core test USCIS applies. Employers should document this clearly in the petition to reduce RFE risk.
Which industries sponsor H-1B visas most often for mainframe developers?
Financial services, insurance, healthcare payers, and federal government contractors are the most consistent H-1B sponsors for mainframe roles. These sectors run mission-critical legacy systems that require ongoing development and maintenance by specialists. Mainframe skills are rare enough that these employers cannot easily source qualified candidates domestically, which drives their sponsorship activity. Migrate Mate lets you filter employers by verified LCA filing history in this occupation.
What prevailing wage level applies to Senior Mainframe Developer positions?
Most Senior Mainframe Developer roles are certified at DOL wage Level III or Level IV, reflecting the combination of technical depth and seniority. The exact level depends on the job duties, years of experience required, and geographic location. You can verify the applicable wage for any metro using the OFLC Wage Search before evaluating an offer or accepting a position.
Can I use my mainframe work experience to substitute for a bachelor's degree on an H-1B petition?
USCIS allows three years of specialized work experience to substitute for one year of a four-year degree, so 12 years of directly relevant mainframe experience can satisfy the bachelor's degree equivalent requirement. However, the experience must be evaluated by a credentials assessment organization and documented in detail. This path adds complexity to the petition and makes thorough evidence preparation especially important.
How do I identify employers actively sponsoring H-1B visas for mainframe roles?
The most reliable method is reviewing DOL Labor Condition Application disclosure data, which shows which employers have filed LCAs for mainframe and systems developer job titles. This is public record and reflects actual filing intent rather than a recruiting claim. Migrate Mate surfaces this LCA data by employer and occupation, so you can target companies with a real history of sponsoring candidates in this field rather than relying on job postings alone.