Sr. Mainframe Systems Programmer
About The Position
This is a remote position involving close collaboration with a small, specialized technical team supporting the CFIUS data center in Somerset, New Jersey, which services OSS Classic (fTelcordia) products. We are seeking a Senior Mainframe Systems Programmer to join a collaborative team supporting Ericsson's IBM z/OS-based mainframe infrastructure. The team manages mainframe hardware and software platforms, maintains software currency, and ensures systems remain reliable, secure, and high performing. In this role, you will work alongside experienced mainframe professionals to implement new technologies and support an internal community of Ericsson application developers and testers — enabling solutions used by Tier 1 telecommunications carriers across North America.
Requirements
- U.S. Citizenship is required
- At least 10 years of hands-on z/OS experience, with current expertise aligned to z/OS 3.1
- Deep knowledge of z/OS architecture, RACF security administration, and SMP/E maintenance and software management
- Proven experience leading mainframe migration and upgrade projects
- Strong analytical and problem-solving skills in complex technical environments
- Demonstrated expertise in performance tuning and capacity planning
Nice To Haves
- Experience with Connect:Direct is a plus
- Strong communication skills and ability to collaborate effectively across teams
- Self-directed research ability with a proactive, solutions-focused approach
- Eagerness to learn and adapt in a dynamic environment
Responsibilities
- Provide technical leadership across all aspects of the z/OS platform, ensuring high availability, performance, and security
- Collaborate with a small, specialized engineering team to deliver critical infrastructure initiatives
- Lead evaluation, installation, customization, and migration efforts for new z/OS releases and components
- Troubleshoot complex technical issues and drive resolution across integrated mainframe environments
- Ensure compliance with internal IT policies, standards, and security requirements
- Optimize system performance through capacity planning and performance management
- Support and upgrade key z/OS subsystems: JES2 (including local exits), TSO/ISPF (including local customizations), RACF, SMS, HCD, and SMF/RMF
- Design, implement, and manage RACF security environments, including day-to-day administration and strategic enhancements
Benefits
- Annual bonus
- Choice of three medical plan options
- Dental plan option
- Company credits towards medical and dental premiums
- 401(k) Plan with automatic 3% company contribution
- Company match for 401(k) contributions
- Company credits for basic life insurance and basic accidental death and dismemberment coverage
- Company credits for short-term and long-term disability coverage
- Option to participate in Ericsson’s Stock Purchase Plan
- Minimum of 15 days of accrued vacation
- Up to 3 personal days per year
- 11 annual holidays
- 8 hours of volunteer time
- 80 hours of sick time annually
- Up to 16 weeks of paid maternity leave
- 6 weeks of parental or adoption leave at 100% of pay
- Financial wellness programs
- Educational assistance
- Matching gifts
- Recognition programs
Stand Out From the Crowd
Upload your resume and get instant feedback on how well it matches this job.
What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
