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Temporary Mainframe Security Engineer Jobs (NOW HIRING)

Stellar IT Solutions

Mainframe Developer

Saint Louis, MO · On-site

$46.50 - $59.75/hr

Mainframe Developer (Senior - Security Remediation) Location: Remote Duration: 6-12+ Months Contract Role Overview We are seeking experienced Senior Mainframe Engineers with deep expertise in legacy ...

Stellar IT Group

Mainframe Developer

Saint Louis, MO · On-site

$47.75 - $61.25/hr

Mainframe Developer (Senior - Security Remediation) Location: Remote Duration: 6-12+ Months Contract Role Overview We are seeking experienced Senior Mainframe Engineers with deep expertise in legacy ...

Palnar

Mainframe, Network Systems Programmer

$56.25 - $71.75/hr

Mainframe Network Engineering will be supporting a firmwide initiative to enable encryption for all ... Partner with mainframe security team to identify and assist with certificates required for ...

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Temporary Mainframe Security Engineer information

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$23K

$139.6K

$174.5K

How much do temporary mainframe security engineer jobs pay per year?

As of Sep 4, 2026, the average yearly pay for temporary mainframe security engineer in the United States is $139,599.00, according to ZipRecruiter salary data. Most workers in this role earn between $116,000.00 and $160,000.00 per year, depending on experience, location, and employer.

What is the difference between Temporary Mainframe Security Engineer vs Temporary Network Security Analyst?

AspectTemporary Mainframe Security EngineerTemporary Network Security Analyst
CertificationsSecurity+, CISSP, Mainframe security certificationsSecurity+, CISSP, Network security certifications
Work EnvironmentMainframe data centers, legacy systemsCorporate networks, cloud environments
Employer & Industry UsageFinancial institutions, government agenciesIT firms, telecom companies, enterprises

Temporary Mainframe Security Engineers focus on securing legacy mainframe systems, while Temporary Network Security Analysts monitor and protect network infrastructure. Both roles require security certifications and are vital in safeguarding organizational data, but they specialize in different technical environments.

Are temporary mainframe security engineers in demand?

Temporary mainframe security engineers are in demand due to ongoing need for cybersecurity in legacy mainframe environments, especially in industries like finance and government. Skills in mainframe security tools, such as RACF or ACF2, and relevant certifications can improve job prospects in this specialized field.

Is security engineering a good career?

Security engineering is a strong career choice for those interested in protecting information systems, with roles like a mainframe security engineer focusing on safeguarding legacy systems. It requires knowledge of security protocols, tools, and certifications such as CISSP or CISA. The field offers high demand, competitive salaries, and opportunities for specialization in areas like network security or compliance.
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Temporary Mainframe Security Engineer jobs near you
Infographic showing various Temporary Mainframe Security Engineer job openings in the United States as of August 2026, with employment types broken down into 86% Full Time, 12% Part Time, and 2% Contract. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution, with an average salary of $139,599 per year, or $67.1 per hour.

Mainframe Developer

Stellar IT Solutions LLC

Saint Louis, MO • Remote

$50 - $60/hr

Contractor

Posted 21 days ago

Job description

Position: Mainframe Developer (Senior - Security Remediation)

Location: Remote

Duration: 6-12+ Months Contract

Role Overview

We are seeking experienced Senior Mainframe Engineers with deep expertise in legacy banking systems to investigate, understand, and safely remediate security vulnerabilities in production‑critical applications. This role requires strong proficiency in COBOL, CICS, DB2, and z/OS, along with the ability to navigate complex, decades‑old financial systems where stability and accuracy are paramount. The ideal candidate will be a hands‑on engineer who can trace vulnerabilities to their root cause, implement secure fixes, and ensure safe deployment without disrupting mission‑critical banking operations.

Key Responsibilities

  • Investigate and analyze security vulnerabilities within legacy mainframe banking applications.

  • Trace issues to their technical root cause and design secure remediation strategies.

  • Modify and enhance COBOL, CICS, and DB2 codebases while ensuring production stability.

  • Collaborate with security, infrastructure, and application teams to validate fixes.

  • Conduct secure coding reviews and enforce mainframe security best practices.

  • Provide production support for remediation deployments, ensuring minimal disruption.

  • Document remediation steps, secure design patterns, and operational improvements.

  • Contribute to strengthening long‑term resilience of legacy banking systems.

Required Skills

  • Strong expertise in COBOL, JCL, CICS, DB2, z/OS.

  • Deep understanding of mainframe application architecture and legacy banking systems.

  • Hands‑on experience with secure coding practices in mainframe environments.

  • Proven ability to remediate vulnerabilities in production‑critical systems.

  • Strong problem‑solving skills and ability to work independently in high‑stakes environments.

Preferred Skills

  • Experience with large‑scale financial or banking applications.

  • Familiarity with mainframe modernization initiatives.

  • Exposure to secure SDLC practices and vulnerability management frameworks.

  • Strong communication skills to bridge security and engineering teams.