Sr. Mainframe Application Developer

Our Company

At Teradata, we believe that people thrive when empowered with better information. That's why we built the most complete cloud analytics and data platform for AI. By delivering harmonized data, trusted AI, and faster innovation, we uplift and empower our customers-and our customers' customers-to make better, more confident decisions. The world's top companies across every major industry trust Teradata to improve business performance, enrich customer experiences, and fully integrate data across the enterprise.

What You'll Do

Teradata is looking for a skilled Mainframe Developer to join our Customer Developer Tools (CDT) organization. This role is critical in supporting and evolving our mainframe-based connectivity solutions, ensuring reliability, performance, and seamless integration with Teradata Vantage systems.

Key Responsibilities

• Build, maintain, and support Teradata mainframe connectivity solutions and utilities
• Diagnose and resolve complex customer issues, including APAR development and SMP/E packaging and maintenance
• Analyze and synthesize customer mainframe environments to reproduce and troubleshoot issues in lab environments
• Profile system, network, and application performance using tools such as SDSF and SMF
• Collect, analyze, and debug system dumps using IPCS and related tools (e.g., XDC)
• Understand and work within mainframe security frameworks including RACF, Top Secret, and ACF2
• Develop and maintain JCL and REXX scripts for build automation, testing, and performance validation
• Read, understand, and maintain shared assembly code across multiple products
• Collaborate with cross-functional teams, including architects, product managers, and support engineers

Specialized Responsibilities (Legacy / Transitional Systems)

While Teradata continues to modernize its platform, this role may include work on highly specialized legacy systems:

• Contribute to and maintain a large-scale assembly-based codebase (TDP) requiring advanced debugging and system-level understanding
• Support integration with CICS and IMS transaction environments
• Assist in ensuring stability and backward compatibility as legacy systems are phased out

Who You'll Work With

You will work closely with engineering, support, and customer teams to diagnose complex issues, enhance existing systems, and contribute to modernization efforts as legacy components transition over time.

What Makes You a Qualified Candidate

• 8-10 years of experience in IBM z/OS mainframe environments
• Hands-on experience with SMP/E, APAR creation, and maintenance workflows
• Proficiency in JCL and REXX scripting
• Experience with dump analysis and debugging tools such as IPCS
• Familiarity with performance monitoring tools (SMF, SDSF)
• Solid understanding of mainframe security models (RACF, Top Secret, ACF2)
• Ability to troubleshoot complex distributed and mainframe-integrated systems
• Strong analytical and problem-solving skills

What You'll Bring

• Experience with C and C++ is a strong plus
• Exposure to mainframe assembly language (ability to read and understand required; deep expertise is a plus)
• Experience with CICS and IMS integration
• Familiarity with database connectivity systems or the Teradata ecosystem
• Experience working in hybrid environments involving mainframe and cloud systems

Why We Think You'll Love Teradata

We prioritize a people-first culture because we know our people are at the very heart of our success. We embrace a flexible work model because we trust our people to make decisions about how, when, and where they work. We focus on well-being because we care about our people and their ability to thrive both personally and professionally. We are committed to actively working to foster an inclusive environment that celebrates people for all of who they are.

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