Freelance Mainframe Applications Developer Jobs in Georgia

Job Description:
Brokerage is a leading global financial services firm providing a wide range of investment banking, securities, investment management and wealth management services. We advise, originate, trade, manage and distribute capital for governments, institutions, and individuals. As a market leader, the talent and passion of our people are critical to our success. Together, we share a common set of values rooted in integrity, excellence, and a strong team ethic. We provide you with a superior foundation for building a professional career where you can learn, achieve, and grow.
Enterprise Technology & Services (ETS) delivers shared technology services for the Firm, supporting all business applications and end users. ETS provides capabilities for all stages of the firm's software development lifecycle, enabling productive coding, functional and integration testing, application releases, and ongoing monitoring and support for over 3,000 production applications.
The Enterprise Z Security team in ETS is responsible for engineering and managing various mainframe authentication and authorisation systems. This position is for a senior engineer in the Tooling and Project team responsible for designing and executing projects aligned to TopSecret security products and other platform integration solutions. The ideal candidate will be working closely with other infrastructure teams (CICS, Systems Programming, Db2, etc.) and business supporting technologists. The candidate should have strong analytical, organisational and communication skills. The role requires periodic on-call support and maintenance outside of normal working hours as needed to support and resolve security issues.
Duties and responsibilities will include, but are not limited to, the following:
• Engineering support of MS Enterprise Z Mainframe Security products (CA/Broadcom-TSS, CA/Broadcom-Compliance Manager, IBM-RACF, IBM-ZSecure suite, TSS Admin Express) and project initiatives
• Design/support the Firm's Enterprise Z mainframe initiatives related to encryption, authentication, and authorisation (Kerberos, Digital Certificates, Encryption, Pass tickets, and entitlement provision)
• Interaction with technology teams such as Systems Programming, DBA, CICS/MQ Support, etc.
• Scheduling/coordination and post-implementation validation of software/OS upgrades/patches
• Leverage new technology features within new releases of security software products currently installed and integrate them into our environment.
• Develop technical solutions to business problems based upon security best practices.
• Develop automation, tooling, reports, utilities, and batch programs.
• Troubleshoot and track issue tickets with various vendors.
• Participate in an on-call rotation and address questions/issues.
• Coordinate with the Security Management team to review security proposals and assess technical feasibility.
Qualifications Required:
• College graduate with 5+ years of related work experience on the mainframe
• Experience with Mainframe security software configuration/ internals (Broadcom/CA-TSS)
• Ability to program in a command Mainframe batch and reporting languages (C, JCL, and REXX)
• Experience with distributed technology (such as UNIX, USS file systems)
• Experience with z/OS utilities and facilities (such as ISPF, TSO, SDSF, JES)
• Experience with database technology (such as Sybase, DB2, SQL)
• Capable of working independently with limited oversight
• Good project planning, organisation, time management skills, and ability to multitask
• MS Office business application experience (Excel, Word, Access, PowerPoint)
• Excellent verbal and written communication skills
• Must be a team player and foster a team-first environment and culture
Desired:
• Knowledge of PKI and experience working with the implementation and support of digital certificates, Kerberos, SSL, and SSH. Knowledge of PERL, shell scripting, OpenSSL, and SSH.
• Systems Programming skills (such as SMP, SYS1 datasets, assembler language programming)
• Mainframe Network knowledge
• Experience with middleware (such as MQ Series, etc.).