Mainframe Database Administrator

Trumbull, CT, us on site Until 8/22/2026 H-1B sponsor history First posted February 23, 2026 Last posted February 23, 2026
Job description

Tech Tammina LLC

Production support experience in database administration of DB2, ADABAS, Natural, IMS & CA-Datacom

Production support of all database issues and integration jobs

Production support for DB2 & Direct Connect

Provide on-call 24/7 Incident Response to database issues from production monitoring tools, Command Center personnel and Application Development Analysts

Generate DDM for ADABAS

Optimize DB2 resource utilization by tuning queries (static and dynamic), making appropriate index recommendations and configuration parameter changes

DB2 Connect 64-bit client installs

Handle IMS Resource Lock Manager messages

Participate in Disaster Recovery Exercise

Continuously monitor database performance and take steps pro-actively to ensure a good database performance

Installation, testing and deployment of IMS maintenance and upgrades

Installation, testing and deployment of z/OS OEM software maintenance and upgrades

Installation, testing and deployment of DB2 and/or CICS maintenance and upgrades

Installation, testing and deployment of CA-Datacom maintenance and upgrades

Create policies, standards and procedures for the database system support and usage

Interface with external partners, customers and vendors

Knowledge of IMS system internals

Knowledge of, and experience using IMS commands to start and stop IMS, alter bufferpools, perform recovery, list threads and determine their status, and manipulate IMS connections with other subsystems (including CICS, IMS, DB2 and other database systems)

Knowledge of mainframe infrastructure to include experience or familiarity with IBM mainframe tools and jobs: TSO, JCL, SDSF, ISPF, CICS, IMS/DB, IMS/DC DB2, z/OS, WLM SMP/E, IDCAMS, IEBCOPY, DBCTL

Job Status: Full Time 

Eligiblity: GC or US Citizens

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Contact: 703-349-1214

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About this role

Summary

Support mainframe databases, optimize performance, handle upgrades, and interface with partners.

Job title

Mainframe Database Administrator

Experience level

production support experience

Industry

it services

Location requirements

Trumbull, CT, US; on-site; no remote work

Salary

Not specified

Visa sponsorship

H-1B sponsor history

Management role

No

Skills & keywords

Required skills

DB2ADABASNaturalIMSCA-DatacomJCLTSOISPFSDSFWLMSMP/EIDCAMSIEBCOPYCICSz/OS

Preferred skills

IMS system internalsmainframe toolsdisaster recovery

Specializations

DB2ADABASNaturalIMSCA-Datacom
Locations

Structured locations inferred from the posting.

Trumbull, CT 06611, USA

On-site City