John Callahan
Demonstrated ability to deliver a wide variety of solutions on the IBM i platform Proven track record of... | 18 Burke Drive, Farmingdale, United States
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John Callahan’s Emails jo****@fi****.com
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John Callahan’s Location 18 Burke Drive, Farmingdale, United States
John Callahan’s Expertise Demonstrated ability to deliver a wide variety of solutions on the IBM i platform Proven track record of engaging management, operations, peers, subordinates, and vendors to determine and document business requirements and objectives, architect appropriate solutions to the problem at hand, and organize projects by identifying and prioritizing tasks for given resources. Expert RPG programming knowledge Advanced SQL experience. DDL database design and implementation. DML Familiar with COBOL, shell scripting, and able to work in open source languages (python, Javascript) Advanced knowledge of IBM i system features and APIs for security, networking and management .
John Callahan’s Current Industry Fiserv
John
Callahan’s Prior Industry
Bis Banking Systems
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Arnhold And S Bleichroeder
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Freeman Securities
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C And K Consultants
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Stonehenge Resources
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International Fidelity Insurance
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Iat Insurance
|
Fiserv
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Work Experience
Fiserv
Senior Application Support Professional
Wed Jun 01 2022 00:00:00 GMT+0000 (Coordinated Universal Time) — Present
Iat Insurance
Senior Software Developer
Mon Oct 01 2018 00:00:00 GMT+0000 (Coordinated Universal Time) — Wed Jun 01 2022 00:00:00 GMT+0000 (Coordinated Universal Time)
International Fidelity Insurance
Senior Programmer Analyst
Sat Nov 01 2008 00:00:00 GMT+0000 (Coordinated Universal Time) — Sat Sep 01 2018 00:00:00 GMT+0000 (Coordinated Universal Time)
Stonehenge Resources
Consultant
Sun Jun 01 2008 00:00:00 GMT+0000 (Coordinated Universal Time) — Sat Nov 01 2008 00:00:00 GMT+0000 (Coordinated Universal Time)
C And K Consultants
Consultant
Mon Apr 01 2002 00:00:00 GMT+0000 (Coordinated Universal Time) — Tue Jan 01 2008 00:00:00 GMT+0000 (Coordinated Universal Time)
Freeman Securities
VP, Information Systems
Thu May 01 1986 00:00:00 GMT+0000 (Coordinated Universal Time) — Fri Mar 01 2002 00:00:00 GMT+0000 (Coordinated Universal Time)
Arnhold And S Bleichroeder
Senior Programmer Analyst
Sun Jan 01 1984 00:00:00 GMT+0000 (Coordinated Universal Time) — Wed Jan 01 1986 00:00:00 GMT+0000 (Coordinated Universal Time)
Bis Banking Systems
Senior Programmer
Fri Jan 01 1982 00:00:00 GMT+0000 (Coordinated Universal Time) — Sun Jan 01 1984 00:00:00 GMT+0000 (Coordinated Universal Time)Skills
Languages
John Callahan Email Addresses
FAQ About John Callahan
-
John Callahan is located at
18 Burke Drive, Farmingdale, United States -
John Callahan is a
Demonstrated ability to deliver a wide variety of solutions on the IBM i platform Proven track record of engaging management, operations, peers, subordinates, and vendors to determine and document business requirements and objectives, architect appropriate solutions to the problem at hand, and organize projects by identifying and prioritizing tasks for given resources. Expert RPG programming knowledge Advanced SQL experience. DDL database design and implementation. DML Familiar with COBOL, shell scripting, and able to work in open source languages (python, Javascript) Advanced knowledge of IBM i system features and APIs for security, networking and management . Fiserv -
John Callahan currently works in the
Fiserv -
John Callahan specializes in
Demonstrated ability to deliver a wide variety of solutions on the IBM i platform Proven track record of engaging management, operations, peers, subordinates, and vendors to determine and document business requirements and objectives, architect appropriate solutions to the problem at hand, and organize projects by identifying and prioritizing tasks for given resources. Expert RPG programming knowledge Advanced SQL experience. DDL database design and implementation. DML Familiar with COBOL, shell scripting, and able to work in open source languages (python, Javascript) Advanced knowledge of IBM i system features and APIs for security, networking and management . -
John Callahan speaks the following languages:
No languages available. -
John Callahan has prior experience in the following industries:
Iat Insurance , International Fidelity Insurance , Stonehenge Resources , C And K Consultants , Freeman Securities , Arnhold And S Bleichroeder , Bis Banking Systems -
John Callahan has the following professional experience:
Fiserv , Iat Insurance , International Fidelity Insurance , Stonehenge Resources , C And K Consultants , Freeman Securities , Arnhold And S Bleichroeder , Bis Banking Systems . -
You can view John Callahan’s
LinkedIn profile at LinkedIn URL. -
John Callahan’s work email addresses are
[email protected] . -
John Callahan works at
Fiserv
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