Full Stack Engineer 4 - Mainframe DB2 DBA

MainframeMaster; Illinois; Hybrid; USD 179,000 - 205,000; Full time

Job summary

Capital One in Riverwoods, Illinois seeks a Lead Software Engineer - Mainframe DB2 to join and lead our database engineering and software operations team. You will help build, modernize, and maintain secure, scalable DB2 data platforms powering core banking systems.

You will provide leadership, design complex DB2 configurations, mentor peers, drive performance tuning, disaster recovery, and data protection initiatives including Pervasive Encryption, while collaborating with application teams in

Qualifications

• Bachelor's degree in CS or related field.
• 4+ years software engineering experience.
• 2+ years cloud platforms (AWS, GCP, Azure) exposure.
• 3+ years COBOL/JCL and mainframe utilities (ISPF/TSO).
• 3+ years DB2 performance tools and mainframe DR/security experience.

Responsibilities

• Provide technical leadership for DB2 administration across mainframe environments.
• Design and support complex DB2 configurations, migrations, and DR plans.
• Collaborate with dev teams on query tuning and workload optimization.
• Drive data protection, including Pervasive Encryption for DB2 datasets.
• Integrate distributed/cloud connectivity with mainframe DB2 and RESTful APIs.

Skills

Mainframe DB2

Cloud Platforms

DB2 Tuning

Pervasive Encryption

REST APIs

Agile/Jira

Mainframe Security

COBOL/JCL

z/OS Python

Education

Bachelor's Degree in CS

Tools

ISPF/TSO

Omegamon for DB2

Endevor

CICS

VSAM

Job description

# Full Stack Engineer 4 - Mainframe DB2 DBACapital OneFull-timeRiverwoods, IllinoisUSD 179,400 - 204,7000 viewsPosted September 22, 2026## Job DescriptionOverview:We are looking for a Lead Software Engineer - **Mainframe** DB2 to join and help lead our database engineering and software operations team. Our team brings together experts across systems architecture, software development, database administration, and **mainframe** platform engineering. This role is critical to our success, focusing on building, modernizing, and maintaining highly reliable, secure, scalable, and resilient DB2 data platforms and integration software that power our core banking and payment processing systems.What You’ll Do:- Provide technical leadership and guidance for database administration activities across core **mainframe** DB2 environments, ensuring maximum availability, security, and performance.- Design, implement, and support complex DB2 database configurations, system migrations, disaster recovery plans, and resiliency frameworks.- Collaborate with application development teams to perform query tuning, workload optimization, and database design reviews using performance monitoring tools.- Drive data protection and security initiatives, including the implementation and management of **Pervasive Encryption** and dataset security standards for DB2 platforms.- Integrate distributed and cloud connectivity solutions with **mainframe** DB2 systems to support modern architecture, RESTful API integrations, and application modernization efforts.- Develop and maintain technical documentation for system configurations, operational processes, and architectural designs.- Partner with cross-functional teams in an Agile environment to support batch and online processing systems, payment compliance, and system enhancements.## Requirements & SkillsBasic Qualifications:- Bachelor's Degree or higher in Computer Science or a related quantitative field (Statistics, Economics, Operations Research, Analytics, Mathematics, Engineering)- At least 4 years of professional software engineering experience (Internship experience does not apply)- At least 2 years of experience with public cloud platforms (**AWS**, **GCP**, **Azure**), cloud-based productivity tools, or virtualization technologies- At least 4 years of experience with **IBM DB2** on **mainframe** platforms- At least 3 years of experience with **mainframe** utilities (**IBM File Manager**, **IBM Z Workload Scheduler**, **IBM Batch Utilities**, **ISPF**, or **TSO**)- At least 3 years of experience with DB2 performance tools (such as **Omegamon for DB2**, **Query Workload Tuner**, **Query Monitor**, **IBM Performance Expert**, or **IBM Admin Tool Suite**)Preferred Qualifications:- 6+ years of experience as an Application Database Administrator or Systems Database Administrator- 5+ years of experience with distributed and cloud connectivity to **IBM DB2**- 4+ years of experience with **Pervasive Encryption** for **IBM DB2** or datasets- 5+ years of experience with DB2 performance tools (such as **Omegamon for DB2**, **Query Workload Tuner**, **Query Monitor**, **IBM Performance Expert**, or **IBM Admin Tool Suite**)- 3+ years of experience with **mainframe** application disaster recovery and system resiliency planning- 3+ years of experience with **RACF**, **ACF2**, or **Top Secret** security management- 2+ years of experience with x509 certificate management on z/OS- 3+ years of experience with payment gateways, payment security standards, and credit card processing systems- 3+ years of experience working in an Agile environment using **Jira** and team collaboration software such as **Confluence**- 3+ years of experience developing technical documentation for system designs, processes, and configurations- 5+ years of experience with **COBOL** programming and **JCL**- 3+ years of experience with **VSAM** file systems and dataset structures- 3+ years of experience with **CICS** transaction processing systems- 2+ years of experience with **Python** on z/OS or **Mainframe RESTful API** technologies- 3+ years of experience with source code and version control packages (such as **Endevor** or **ChangeMan**)- Experience participating in **mainframe** modernization initiatives- Experience mentoring junior database administrators or technical team members## How to ApplyApply directly through the application link above