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Apptoza Inc.

Mainframe Data Masking Specialist

Toronto, ON, Canada

Contract

Within 25 km of Vaughan · About 22.9 km from the city centre

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Job details

Job type: Contract
Apply by: Nov 15, 2026
Posted: Oct 16, 2026

Original job description

Mainframe Data Masking Specialist*

Toronto, ON Hybrid (2 days per week in-person at Toronto office preferred)

Skills: Compliance : Data Privacy~Mainframe DB2 - Application Development~Data Architecture and Modeling

Experience Required: 8-10

Role Descriptions:

Detailed Job Description:

We are looking for an experienced Mainframe Data Masking Specialist to support data privacy and masking initiatives within Mainframe environments. The candidate will work extensively with z/OS, COBOL, JCL, DB2, VSAM datasets, and Mainframe utilities to analyze, transform, and mask sensitive information while preserving data integrity and application functionality.

The ideal candidate should have strong expertise in Mainframe file structures, COBOL copybooks, record layouts, EBCDIC data formats, batch processing, and automation utilities. Experience with data masking projects is an added advantage.

Top 3 Required Skills:

Strong Mainframe experience with z/OS, COBOL, JCL, and DB2.

Hands-on experience with Mainframe datasets, VSAM, file formats, COBOL copybooks, and record layouts.

Strong troubleshooting experience with batch jobs, JCL execution, and Mainframe data processing.

Top 3 Preferred Skills:

Experience with REXX, DFSORT, ICETOOL, or similar Mainframe automation utilities.

Knowledge of EBCDIC, fixed/variable length records, and COMP-3 data structures.

Experience supporting data masking, data privacy, or data transformation initiatives.

Education Requirements:

Bachelor's degree in Computer Science, Information Technology, Engineering, or equivalent experience.

Thanks & regards,

Lakshmi Bhavani ,

Apptoza Inc.

Phone: 678-392-3978 Ext 4640

Phone: 437-291-3224 Ext 1105

Mail id : Lakshmi.bhavani@apptoza.com

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More about this job

Responsibilities

Analyze, transform, and mask sensitive data in mainframe environments while preserving data integrity and application functionality. Support data privacy and masking initiatives using z/OS, COBOL, JCL, DB2, VSAM datasets, and mainframe utilities.

Requirements

Requires 8–10 years of experience and strong expertise in z/OS, COBOL, JCL, DB2, mainframe datasets, VSAM, file formats, copybooks, and record layouts. A bachelor's degree in Computer Science, Information Technology, Engineering, or equivalent experience is required; experience with mainframe automation utilities and data masking or privacy initiatives is preferred.

Skills

z/OS
COBOL
JCL
DB2
Mainframe Data Masking
VSAM
Mainframe Datasets
COBOL Copybooks
Record Layouts
Batch Processing
JCL Troubleshooting
REXX
DFSORT
ICETOOL
EBCDIC
Data Privacy

Visa sponsorship

Not detected in the job text

Hiring contact

Lakshmi Bhavani

Hiring contact email

Lakshmi.bhavani@apptoza.com

Keywords

Mainframe Data Masking
Data Privacy
Data Transformation
z/OS
COBOL
JCL
DB2
VSAM
Mainframe Datasets
Mainframe Utilities
COBOL Copybooks
Record Layouts
EBCDIC
Fixed-Length Records
Variable-Length Records
COMP-3
Batch Processing
Batch Job Troubleshooting
REXX
DFSORT
ICETOOL
Data Integrity
Application Functionality
Data Architecture and Modeling
Mainframe File Structures

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