Sr Mainframe Developer / Engineer

Vytwo; Dallas (TX); On-site; USD 110,000 - 140,000; Full time

Job summary

Vytwo is seeking a data-focused professional to partner with business stakeholders, QA, and engineering teams to understand data requirements, source systems, and data delivery needs. You will translate requirements into data models, mappings, and test data specifications for validation and modernization efforts.

The role emphasizes testing strategies, data quality, and governance across batch and real-time movements, including mainframe data, DB2, and SQL environments.

Qualifications

• Bachelor's degree or equivalent practical experience in a related field.
• Strong experience in data analysis, data architecture, database design, test data management, quality engineering, or software delivery.
• Proficiency writing and optimizing SQL queries for data discovery, validation, reconciliation, and troubleshooting.
• Experience analyzing relational databases, mainframe data structures, files, batch jobs, APIs, and downstream data consumers.
• Ability to translate business rules and system behavior into clear data requirements, mappings, and test data needs.
• Strong communication skills and collaboration across Agile teams.

Responsibilities

• Partner with business stakeholders, Product Owners, SMEs, analysts, and development teams to understand business processes, data requirements, source systems, data mappings, and data consumption needs.
• Translate business requirements, processes, and rules into logical and physical data models, source-to-target mappings, and data integration specifications.
• Define and implement test data strategies that support functional, regression, integration, performance, automation, and modernization testing needs.
• Design and govern reusable test data patterns, test data provisioning approaches, masking strategies, synthetic data solutions, and environment refresh processes.
• Demonstrate strong understanding of data modeling principles, including entities, attributes, relationships, schemas, primary and foreign keys, indexes, constraints, and overall database design.
• Read, interpret, and analyze Entity Relationship Diagrams, database schemas, data dictionaries, and end-to-end data flow diagrams to identify data dependencies and business impact.
• Perform data discovery, analysis, and data mining across multiple databases, tables, files, and source systems using SQL, Easytrieve, and other data query and extraction tools.
• Validate data quality, integrity, consistency, and accuracy by analyzing data relationships, transformation logic, reconciliation results, and business rules across systems.
• Develop an understanding of data movement and integration patterns, including real-time and batch processing, event-driven architectures, APIs, messaging queues, data pipelines, and file-based interfaces.
• Collaborate with architecture, development, testing, and operational teams to support data analysis, problem resolution, impact assessments, test automation enablement, and system modernization initiatives.
• Ensure test data solutions comply with data privacy, data protection, retention, classification, and regulatory requirements for sensitive customer and financial data.
• Document data models, test data design patterns, source-to-target mappings, provisioning processes, standards, and best practices for repeatable enterprise use.

Skills

COBOL

CICS

DB2

DB2 utilities

SQL

JCL

MVS Utilities

CA7 Scheduling

Education

Bachelor's degree in Computer Science, Information Technology, Data Management, Engineering, or related field

Tools

CA7 Scheduling

Easytrieve

SPUFI

VSAM

Job description

Banking Experience is must. Credit Card experience is huge plus.

10+ years experience is a must.

TECHNICAL SKILLS

Must Have:

• COBOL
• CICS
• DB2
• DB2 utilities
• SQL JCL
• MVS Utilities
• Experience doing Production Support Use of CA7 Scheduling tool

Nice To Have:

Banking Domain Knowledge, Strong experience in data analysis, data architecture, database design, test data management, quality engineering, or software delivery. Proficiency writing and optimizing SQL queries for data discovery, validation, reconciliation, and troubleshooting. Experience analyzing relational databases, mainframe data structures, files, batch jobs, APIs, and downstream data consumers.

LOCATION: Minneapolis, MN 55343

Key Responsibilities

• Partner with business stakeholders, Product Owners, SMEs, analysts, and development teams to understand business processes, data requirements, source systems, data mappings, and data consumption needs.
• Translate business requirements, processes, and rules into logical and physical data models, source-to-target mappings, and data integration specifications.
• Define and implement test data strategies that support functional, regression, integration, performance, automation, and modernization testing needs.
• Design and govern reusable test data patterns, test data provisioning approaches, masking strategies, synthetic data solutions, and environment refresh processes.
• Demonstrate strong understanding of data modeling principles, including entities, attributes, relationships, schemas, primary and foreign keys, indexes, constraints, and overall database design.
• Read, interpret, and analyze Entity Relationship Diagrams, database schemas, data dictionaries, and end-to-end data flow diagrams to identify data dependencies and business impact.
• Perform data discovery, analysis, and data mining across multiple databases, tables, files, and source systems using SQL, Easytrieve, and other data query and extraction tools.
• Validate data quality, integrity, consistency, and accuracy by analyzing data relationships, transformation logic, reconciliation results, and business rules across systems.
• Develop an understanding of data movement and integration patterns, including real-time and batch processing, event-driven architectures, APIs, messaging queues, data pipelines, and file- based interfaces.
• Collaborate with architecture, development, testing, and operational teams to support data analysis, problem resolution, impact assessments, test automation enablement, and system modernization initiatives.
• Ensure test data solutions comply with data privacy, data protection, retention, classification, and regulatory requirements for sensitive customer and financial data.
• Document data models, test data design patterns, source-to-target mappings, provisioning processes, standards, and best practices for repeatable enterprise use.

Required Qualifications

• Bachelor's degree in Computer Science, Information Technology, Data Management, Engineering, or a related field, or equivalent practical experience.
• Strong experience in data analysis, data architecture, database design, test data management, quality engineering, or software delivery.
• Proficiency writing and optimizing SQL queries for data discovery, validation, reconciliation, and troubleshooting.
• Experience analyzing relational databases, mainframe data structures, files, batch jobs, APIs, and downstream data consumers.
• Ability to translate business rules and system behavior into clear data requirements, mappings, and test data needs.
• Strong communication skills with the ability to explain complex data concepts to technical and non-technical stakeholders.
• Experience working in Agile delivery environments and collaborating across product, engineering, quality, architecture, and operations teams.

Preferred Skills & Technologies

Databases

• DB2
• SQL Server
• Oracle
• PostgreSQL

Data Analysis & Query Tools

• SQL
• Easytrieve
• SPUFI
• Basic understanding of COBOL, JCL, and VSAM datasets

Banking Domain Knowledge (Preferred)

• Experience working within banking, payments, credit card, deposits, lending, or customer/account data domains.
• Understanding of core banking platforms, transaction processing flows, customer and account hierarchies, and regulatory reporting requirements.
• Ability to trace, analyze, and map data across upstream and downstream applications, databases, files, APIs, and enterprise data platforms.
• Familiarity with batch and real-time processing architectures and the movement of data across interconnected banking systems.
• Experience with enterprise test data management platforms, data masking, synthetic data generation, data subsetting, and automated data provisioning is preferred.
• Understanding of data governance, data classification, retention requirements, and regulations governing the storage, transmission, and protection of sensitive customer and financial data.

Flexible work from home options available.