Full Stack Engineer 4 - Mainframe Engineer

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

Job summary

Capital One in Riverwoods, Illinois seeks a Lead Mainframe Engineer to maintain a mixed batch and online mainframe infrastructure with top-tier availability. You will work across Parallel Sysplex and utilize Omegamon to monitor performance while supporting disaster recovery using GDPS and implementing mainframe encryption for data at rest and in flight.

You will also manage file transfers (SFTP/FTPS/NDM), develop comprehensive technical docs, and participate in an Agile environment using Jira

Qualifications

• Bachelor's degree in Computer Science or related field.
• 4+ years software engineering experience.
• 3+ years with mainframe technologies (COBOL, CICS, VSAM, JCL, DB2) and Mainframe RESTful API.
• 3+ years with mainframe tools (ISPF/TSO, IBM File Manager, Z Workload Scheduler, batch utilities).
• Experience with GDPS, Omegamon, and security/encryption for data in transit/rest.

Responsibilities

• Maintain and support a mixed batch and online mainframe infrastructure with high availability.
• Monitor system health using mainframe tools like Omegamon and manage performance.
• Support disaster recovery technologies (GDPS) to ensure resiliency.
• Implement mainframe encryption for data at rest and in flight.
• Manage file transfers (SFTP/FTPS/NDM) and document system configurations.
• Collaborate in an Agile environment using Jira and Confluence.

Skills

COBOL

CICS

VSAM

JCL

DB2

Mainframe RESTful API

Omegamon

GDPS

Endevor

ChangeMan

ISPF/TSO

Python on z/OS

Mainframe Encryption

SFTP/FTPS

Education

Bachelor's degree in Computer Science or related field

Tools

Endevor

ChangeMan

ISPF/TSO

Omegamon

GDPS

Job description

# Full Stack Engineer 4 - Mainframe EngineerCapital OneFull-timeRiverwoods, IllinoisUSD 179,400 - 204,7000 viewsPosted September 22, 2026## Job DescriptionOverview:We are seeking an experienced Lead **Mainframe** Engineer to join our team. This role focuses on supporting mixed batch and online **mainframe** infrastructure environments, maintaining high availability, and ensuring system resiliency. You will work across core **mainframe** technologies, performance monitoring, disaster recovery, data encryption, and file transfer protocols while supporting payment systems compliance and technical documentation.What You’ll Do:- Maintain and support a mixed batch and online **mainframe** infrastructure environment, ensuring high availability across **Parallel Sysplex** complexes.- Utilize **mainframe** monitoring suites (such as **Omegamon**) to track system performance and health.- Support disaster recovery technologies, including **GDPS**, to maintain system resiliency.- Implement and manage **mainframe encryption** technologies and solutions for data both at rest and in flight.- Manage file transfer protocols including **SFTP**, **FTPS**, and NDM (Connect Direct).- Develop comprehensive documentation for system designs, processes, and configurations.- Ensure compliance with industry regulations and standards to maintain the integrity and security of payment systems.- Collaborate in an Agile project environment using **Jira**.## 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 experience in software engineering (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 3 years of experience with Sysplex complexes- At least 3 years of experience with **COBOL**, **CICS**, **VSAM**, **JCL**, **DB2**, or **Mainframe RESTful API** technologies- At least 3 years of experience with **mainframe** tools and utilities (**IBM File Manager**, **IBM Z Workload Scheduler**, batch schedulers, **IBM Batch Utilities**, **ISPF**, or **TSO** menu functions)Preferred Qualifications:- 10+ years of experience supporting a mixed batch and online **mainframe** infrastructure environment- 5+ years of experience with highly available Sysplex complexes- 5+ years of experience with **mainframe** monitoring suites, such as **Omegamon**- 5+ years of experience with **COBOL**, **CICS**, **VSAM**, **JCL**, **DB2**, or **Mainframe RESTful API** technologies- 3+ years of experience with **Mainframe** Disaster Recovery technology, such as **GDPS**- 3+ years of experience with **mainframe encryption** technologies for data at rest or data in flight- 3+ years of experience with file transfer protocols, such as **SFTP**, **FTPS**, and NDM (Connect Direct)- 3+ years of experience with source code and version control packages, such as **Endevor** or **ChangeMan**- 3+ years of experience developing comprehensive technical documentation for designs, processes, and system configurations- 3+ years of experience with payment systems compliance, industry regulations, and payment security standards- 3+ years of experience working in an Agile environment using **Jira** and team collaboration software such as **Confluence**- 2+ years of experience with Database Administrator tasks in **DB2**- 2+ years of experience with **x509** certificate management on z/OS- 2+ years of experience with payment gateways and credit card processing systems- 2+ years of experience with **Python** on z/OS- Experience participating in **mainframe** modernization journeys- Experience mentoring junior team members or technical staff## How to ApplyApply directly through the application link above