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Urgent! Mainframe Security Expert Job Opening In Colombia, Colombia – Now Hiring Ditech Group

Mainframe Security Expert



Job description

+6 years of experience

Modality: Relocation to Spain.

Advanced English (C1)

Mainframe Security Service – Operational Security Expert

Job Description

We are seeking an
Operational Security Expert
to join our
Mainframe Security Service Team
, responsible for maintaining and strengthening security across multiple mainframe environments.

The role involves managing approximately
60 security databases
across various partitions and customers.

Given the critical nature of the mainframe systems, this position requires a
meticulous, process-oriented professional
with a strong sense of responsibility and attention to detail.

The selected expert will work within a
cross-functional security team
that values collaboration and solidarity.

The team oversees firewall configurations, Socks proxies, and related infrastructure components, ensuring compliance, audit traceability, and adherence to established security protocols.

Key Responsibilities

  • Maintain, review, and enhance
    z/OS (STS) security rules
    .

  • Deploy
    IAM solutions
    , including
    Multi-Factor Authentication (MFA)
    , across all partitions managed by the PRODSEC team.

Strong RACF expertise is mandatory; prior IAM/MFA experience is not required.

  • Design and implement
    access-based security models
    aligned with both business and technical profiles.

  • Optimize workflows related to security requests outside the IAM framework.

  • Define and implement
    least-privilege models
    for users and administrators.

  • Support the
    global deployment of 2FA
    for all mainframe access.

  • Prepare
    technical documentation, security reports, and activity tracking
    .

  • Manage specific topics end-to-end in coordination with the
    Mainframe Security PMO
    .

  • Participate in
    steering committees, audits, and compliance reviews
    (IG, IBM, CAC, etc.).

Requirements

  • Proven expertise in
    RACF (Resource Access Control Facility)
    and
    mainframe operational security
    .

  • Solid knowledge of
    z/OS environments
    , preferably within large-scale or multi-client contexts.

  • Strong analytical and organizational skills, with a high level of rigor in following processes.

  • Experience in
    security architecture, access management, or infrastructure improvement
    is a plus.

  • Proactive and collaborative mindset, capable of working in cross-functional teams.

  • English fluency
    is required;
    French proficiency
    is a plus.

Ideal Candidate Profile

We are looking for a
Mainframe Security Expert
with deep knowledge of
RACF
and
z/OS
, capable of managing and securing complex mainframe ecosystems.

The ideal candidate is
methodical, detail-oriented, and adheres strictly to security procedures
, ensuring system integrity, audit compliance, and operational continuity across all managed environments.


Required Skill Profession

Other General



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    Unlock Your Mainframe Security Potential: Insight & Career Growth Guide


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