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# Hiring: Tandem Developer for Berkeley Heights, NJ (Onsite)

- **Company:** Key2Source INC
- **Location:** Berkeley Heights, NJ, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** C++ (Programming Language), COBOL (Programming Language), Software Debugging, DevOps, Performance Tuning, Scrum Methodology, Software Engineering, SQL Databases, Scripting, Information Technology, Base 24 EPS, ISO 8583
- **Published:** May 15, 2026
- **Apply:** https://www.careerjet.com/jobad/usf016f65729bf0171fd150dbe4eed1601

## About the Role

* 5+ years of experience in Tandem NonStop development (TACL, TAL, COBOL, SCOBOL, C, or C++).
 * Strong experience with ATM/POS transaction processing systems (e.g., Base24, Connex, FIS, NCR).
 * Good knowledge of Enscribe, SQL/MP, Pathway, Guardian, OSS.
 * Familiarity with ISO8583 messaging formats and transaction switching.
 * Experience with debugging and performance tuning in Tandem environment.
 * Strong understanding of financial transaction processing, EFT, and settlement.
 * Excellent problem-solving and communication skills.

Preferred Qualifications:

 * Experience in Base24 classic/Base24-eps environment.
 * Exposure to payments domain, card networks (Visa/MasterCard), and regulatory compliance.
 * Prior experience in Agile/Scrum environments.
 * Knowledge of scripting, automation, and DevOps for Tandem systems.

Education:

 * Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent experience).

## Description

We are seeking an experienced Tandem Developer with strong expertise in HP NonStop (Tandem) systems and ATM applications development/support. The ideal candidate will have hands-on experience in designing, coding, testing, and maintaining ATM transaction applications, along with a deep understanding of financial services systems, payment processing, and transaction switching.


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