About this opportunity
Compunnel, Inc. lists this Senior Mainframe Engineer opportunity in merrimack, New Hampshire. Review the employer’s description below for duties, qualifications and application requirements.
Job description
Client is seeking a highly skilled Sr. Mainframe Engineer to join the R4 Responsive Security Master team within Brokerage Recordkeeping Technology. This role supports mission-critical reference data and pricing systems that serve millions of customers. The engineer will work in a hybrid environment, maintaining and enhancing high-volume production platforms across both mainframe and distributed systems. The role emphasizes production stability, incident remediation, application enhancements, and continuous improvement.
Key Responsibilities
Design, develop, maintain, and support large-scale mainframe applications in a high-availability production environment
Provide senior-level production support, including incident investigation, root cause analysis, and remediation
Perform application enhancements and system optimizations to improve performance, reliability, and scalability
Integrate mainframe applications with distributed systems and cloud-based services
Deploy and support software releases across environments following SDLC and change management processes
Execute component-level testing and support end-to-end testing efforts
Apply best practices in software lifecycle management, coding standards, and design patterns
Collaborate closely with business partners, architects, and cross-functional engineering teams
Participate in continuous improvement initiatives and modernization efforts
Ensure system reliability, data integrity, and compliance with enterprise standards
Required Qualifications
Bachelor’s degree in Computer Science or a related field, or equivalent professional experience
Strong hands-on experience in mainframe development and support
Advanced proficiency in:
COBOL
CICS
VSAM
JCL
Mainframe utilities, FileAid, Endevor, schedulers, and debugging tools
Extensive experience with DB2 and strong command of SQL
Solid understanding of testing methodologies and production release processes
Proven ability to troubleshoot complex systems in a fast-paced production environment
Technical Skills
Mainframe Technologies: COBOL, CICS, VSAM, JCL
Databases: DB2, Oracle, SQL
Cloud / Distributed: AWS (support experience preferred)
Preferred / Nice to Have
Experience with distributed systems and cloud computing
Working knowledge of Java
Relevant certifications in mainframe or distributed technologies
Soft Skills
Strong analytical and problem-solving skills
Excellent verbal and written communication abilities
Ability to collaborate effectively across technical and business teams
Comfortable implementing complex solutions in a dynamic, high-volume environment
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Worksite address
merrimack, NH, 03054, US
Who can apply
Review the original listing for work authorization, qualifications and employer requirements.