Senior Mainframe Developer (z/OS) – On-Site Jacksonville

Apex Systems; Jacksonville (FL); On-site; USD 100,000 - 140,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

401K with company match

ESPP

HSA

EAP with counseling

Training programs

Career coach

Job summary

Everforth Apex in Jacksonville, FL seeks a Mainframe Developer to design, code, test, and document new functionality on IBM z/OS mainframe systems supporting Prime Brokerage and Professional Clearing applications.

The role covers the full SDLC, production maintenance, and collaboration with cross-functional teams to deliver high-performance, secure solutions. A Bachelor's degree and 3+ years of mainframe development experience are required.

Qualifications

• Bachelor's degree in computer science or related field.
• Minimum 3 years of mainframe software development experience with exposure to prime brokerage, settlements, clearing, margin, or risk applications.
• Expert proficiency in COBOL, JCL, CICS, and DB2.

Responsibilities

• Create high-performance, mission-critical mainframe applications to support business operations.
• Analyze user requirements and translate them into functional software solutions.
• Ensure all developed software applications meet strict performance and security standards.
• Collaborate with other developers to design and deliver scalable, high-performance systems.
• Research new technologies and software development trends to improve existing systems.
• Provide technical support and troubleshoot system issues to ensure operational continuity.
• Write detailed technical documentation for software design and system configurations.

Skills

COBOL

JCL

CICS

DB2

DevOps (Jenkins & Git)

Education

Bachelor's degree in Computer Science or related field

Tools

z/OS

z/VM

z/Linux

IBM System z

Job description

Everforth Apex in Jacksonville, FL seeks a Mainframe Developer to design, code, test, and document new functionality on IBM z/OS mainframe systems supporting Prime Brokerage and Professional Clearing applications.

The role covers the full SDLC, production maintenance, and collaboration with cross-functional teams to deliver high-performance, secure solutions. A Bachelor's degree and 3+ years of mainframe development experience are required.