Compunnel Inc.
Tandem Developer (Full Time)
⭐ - Featured Role | Apply direct with Data Freelance Hub
This role is for a Tandem Developer with 7-15 years of experience in BASE24/Connex implementation, strong proficiency in C TAL COBOL, Unix/Linux, and familiarity with payment switch architecture. Contract length exceeds 6 months; location is on-site in multiple cities.
🌎 - Country
United States
💱 - Currency
$ USD
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💰 - Day rate
Unknown
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🗓️ - Date
October 17, 2025
🕒 - Duration
More than 6 months
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🏝️ - Location
On-site
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📄 - Contract
Fixed Term
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🔒 - Security
Unknown
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📍 - Location detailed
Alpharetta, GA
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🧠 - Skills detailed
#POSTMAN #Linux #Scripting #GIT #Shell Scripting #Version Control #JCL (Job Control Language) #Unix
Role description
Job Title: Tandem Developer
Multiple Work Location: Berkely Heights, NJ/Wilmington DE/ Alpharetta GA/Omaha, NE/Kansas City, KS/Coral Springs FL
Job Type: Both Fulltime and Contract (Only W2)
Job Description:
• Tandem Implementation
• 7-15 years strong experience in deploying configuring customizing and supporting switches like BASE24 or Connex
• Strong experience in BASE24 Connex development and implementation
• Proficiency in C TAL COBOL SCOBOL and Unix Linux shell scripting
• Handson experience with payment simulators and transaction testing tools eg Postman Asset
• Deep understanding of ISO8583 SOAPXML and payment switch architecture
• Familiarity with key management HSM messages and EMV transaction flows
• Experience with version control tools like Git
Mandatory Skills : JCL,Mainframe Enterprise Cobol,VSAM,Mainframe DB2,Mainframe Admin,Z/OS,Mainframe - COBOL/JCL/DB2,Mainframe COBOL
Good to Have Skills : JCL, Z/OS, VSAM, Mainframe DB2
Job Title: Tandem Developer
Multiple Work Location: Berkely Heights, NJ/Wilmington DE/ Alpharetta GA/Omaha, NE/Kansas City, KS/Coral Springs FL
Job Type: Both Fulltime and Contract (Only W2)
Job Description:
• Tandem Implementation
• 7-15 years strong experience in deploying configuring customizing and supporting switches like BASE24 or Connex
• Strong experience in BASE24 Connex development and implementation
• Proficiency in C TAL COBOL SCOBOL and Unix Linux shell scripting
• Handson experience with payment simulators and transaction testing tools eg Postman Asset
• Deep understanding of ISO8583 SOAPXML and payment switch architecture
• Familiarity with key management HSM messages and EMV transaction flows
• Experience with version control tools like Git
Mandatory Skills : JCL,Mainframe Enterprise Cobol,VSAM,Mainframe DB2,Mainframe Admin,Z/OS,Mainframe - COBOL/JCL/DB2,Mainframe COBOL
Good to Have Skills : JCL, Z/OS, VSAM, Mainframe DB2
