Legacy Systems

Legacy Systems Developer Jobs

2 jobs found

2d ago

Senior Mainframe Developer

Global KTech Remote 🌍 Remote

Remote

2d ago

$55 - $60/hr Full time Senior CICS COBOL

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Job Description

Remote Senior Mainframe Developer role at Global KTech focused on leading design, development, and deployment of complex mainframe solutions using COBOL, CICS, DB2, and batch processing on IBM z/OS.

Responsibilities

Provide technical governance by defining and enforcing coding standards
Lead thorough code reviews to ensure quality and consistency
Maintain comprehensive documentation for legacy architectures
Develop and deploy complex, secure batch and online programs using enterprise COBOL on IBM zOS
Architect and optimize online CICS applications for ultra low latency, efficient screen layouts, high throughput, and robust error handling
Design relational DB2 schemas, implement high performance embedded SQL, and tune stored procedures, indexes, and queries to remove bottlenecks
Manage and optimize JCL streams, including utilities such as IEBGENER, IDCAMS, and SORT, with automated batch scheduling
Perform advanced root cause analysis, tracing, and performance tuning to maintain high availability using tools like Dump Analysis, Xpediter, InterTest, or File AID
Collaborate with Cloud and Integration Architects to expose core mainframe data and logic to RESTful APIs via zOS Connect or MQ Series

Requirements

Minimum 8 years of professional IBM Mainframe software engineering experience
Proven track record in high volume transactional environments in Financial Services, Healthcare, Logistics, or Insurance
Proficiency in Enterprise COBOL
Experience with JCL
Strong Embedded SQL skills
Assembler knowledge
EZTrieve is a plus
Online Processing CICS
BMS
Maps
TS TD Queues
Program Control
Intercommunication
Data Management
DB2 relational design
SPUFI
DCLGEN
EXPLAIN plan analysis
VSAM
zOS
TSO
ISPF
Endevor
Changeman
Version Control
Debugging
COBOL: 10 years required
CICS: 10 years required
JCL: 10 years required

Technologies

Enterprise COBOL
JCL
Embedded SQL
Assembler
EZTrieve
Online Processing CICS
BMS
Maps
TS TD Queues
Program Control
Intercommunication
DB2
SPUFI
DCLGEN
EXPLAIN plan analysis
VSAM
zOS
TSO
ISPF
Endevor
Changeman
Version Control
Debugging

Engagement details

Location: Remote
Compensation: USD 55 - 60 per hourly
Minimum overall professional experience: 8+ years
COBOL, CICS and JCL require 10 years of experience each
Visa: Any

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2d ago

Data Engineer 894

Global Service Resources Remote 📍 California Remote

Remote

2d ago

$55 - $60/hr Contract Business Systems Data Analysis Data Cleansing

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Job Description

Remote Data Engineer contractor role for LA County offering a 40 hour work week, with a 12 month assignment and a strong likelihood of extension or direct hire. Compensation sits at USD 55 to 60 per hour. This position is fully remote, backed by a supportive IT team and cross‑agency collaboration.

Benefits

Remote, contract role with a 12‑month assignment and a high chance of extension or possible direct hire
Compensation: USD 55–60 per hour, 40 hours per week
Health Insurance at a Discounted Rate
5 paid Sick Days after 90 days of employment

Responsibilities

Work under the direction of an IT Manager or agency personnel to extract, analyze, map, convert, profile, cleanse, transform, validate, and load data from multiple legacy systems into the target solution while maintaining data integrity and reconciliation
Define data requirements, support cross‑agency coordination, and ensure converted data meets the needs of business users
Coordinate across organizational units, assist with planning and communication of data conversion activities, and help identify issues to maintain clear information flow among stakeholders
Facilitate knowledge transfer or training so staff can understand and work with converted data

Requirements

Minimum of three (3) years of experience supporting field mapping, crosswalk analysis, and data validation during conversion efforts, including troubleshooting data quality issues such as blob-size anomalies and variable-length errors
Strong knowledge of legacy systems, flat files, mainframe‑extracted data, and structured or unstructured datasets
Experience supporting data mapping and crosswalk analysis across organizations and vendors, with ability to interpret legacy formats and data dictionaries
Understanding of data conversion requirements such as retention needs, cutover sequencing, and identifying required data elements; familiarity with ETL processes, reconciliation, encrypted file validation, SFTP structures, and source‑to‑target relationships; ability to document extraction logic and validation rules; effective cross‑organization coordination; ability to resolve data inconsistencies and quality issues
Knowledge of government data retention guidelines
Three (3) years of experience participating in organization coordination activities, including file reviews and data dictionary prioritization, and working with encrypted test files and regulated data
Three (3) years of experience working with legacy and relational data technologies such as mainframe environments, DB2, FOCUS, Oracle, and Microsoft SQL Server
A bachelor's degree in computer science, information systems, data science, engineering, or a closely related field; additional qualifying experience may be substituted for the required education on a year‑for‑year basis

Technologies

DB2
FOCUS
Oracle
Microsoft SQL Server
SFTP
Mainframe

E‑Verify

All employees are required to comply with E‑Verify. The check will be conducted by the employer to verify employment eligibility.

About Global Service Resources

Global Service Resources is a national recruiter for IT and Healthcare professionals across the continental United States. We specialize in government and private short term, per diem, and long‑term contracts. Based in Burbank, CA, we pride ourselves on offering competitive contract positions and a strong team culture. We continuously source candidates to ensure priority submissions for future openings.

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Legacy Systems Developer Jobs

Senior Mainframe Developer

Data Engineer 894

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