Randstad Digital Americas · 13 hours ago
Principal Mainframe Software Engineer
Merrimack, NH
Contract
Onsite
Lead/Staff
$63/hr - $64/hrRandstad Digital Americas is seeking a Principal Mainframe Software Engineer to enhance the stability and performance of their Client tax processing platform. The role involves providing technical leadership, translating business needs into technology solutions, and ensuring operational excellence through strong engineering practices.
Information Technology & Services
Responsibilities
Deep hands?on expertise with COBOL, JCL, VSAM, CICS, batch/online processing, IOM, and enterprise batch scheduling tools
Extensive experience designing, engineering, and optimizing mainframe applications
SQL proficiency across DB2, Oracle, and/or Postgres with strong data analysis and performance debugging skills
Proven experience modernizing legacy mainframe systems and integrating with distributed or cloud architectures
Ability to research, architect, and deliver sophisticated end?to?end technical solutions
Strong Agile background with the ability to mentor teams and influence technical direction
Outstanding analytical, debugging, and cross?functional collaboration skills
Bachelor's degree or equivalent experience in Computer Science Engineering
Qualification
Required
Deep hands-on expertise with COBOL, JCL, VSAM, CICS, batch/online processing, IOM, and enterprise batch scheduling tools
Extensive experience designing, engineering, and optimizing mainframe applications
SQL proficiency across DB2, Oracle, and/or Postgres with strong data analysis and performance debugging skills
Proven experience modernizing legacy mainframe systems and integrating with distributed or cloud architectures
Ability to research, architect, and deliver sophisticated end-to-end technical solutions
Strong Agile background with the ability to mentor teams and influence technical direction
Outstanding analytical, debugging, and cross-functional collaboration skills
Bachelor's degree or equivalent experience in Computer Science Engineering
Lead and contribute to architecture design initiatives that shape mainframe and hybrid-platform solutions
Define and implement application and system-level architectures for high-performance, resilient mainframe environments
Recommend development tools, testing frameworks, and engineering methodologies to improve quality and efficiency
Ensure production readiness, quality assurance, performance, and compliance with enterprise standards
Author comprehensive documentation including architecture diagrams, integration specs, and modernization playbooks
Lead full project lifecycle planning and execution for large-scale, cross-platform initiatives
Identify engineering risks and drive mitigation strategies to ensure system resilience
Serve as a senior liaison to business and technology partners, translating requirements and resolving technical issues
Champion production stability by proactively monitoring, diagnosing, and resolving system issues, driving root-cause analysis, and ensuring 24/7 reliability
Benefits
Medical
Prescription
Dental
Vision
AD&D
Life insurance offerings
Short-term disability
401K plan
Company
Randstad Digital Americas
Randstad Digital is a trusted digital enablement partner that facilitates accelerated transformation for businesses by providing global talent, capacity, and solutions across specialized domains.
Founded in 1984
10001+ employees
Funding
Current Stage
Late StageLeadership Team
Graig Paglieri
CEO, Randstad Digital Americas
Pascal de Hesselle
SVP, Executive Client Partner - Technology, Media & Telecom
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