Mainframe Tech Lead /Solution Architect IRC300494

GlobalLogic; Kraków; On-site; PLN 180,000 - 280,000; Full time

Job summary

GlobalLogic is engaged to perform a maintenance assessment and advisory for a legacy mainframe COBOL estate, with a focus on discovery, characterization, and a pilot maintenance approach. The engagement emphasizes three-stage current-state analysis and a diagnostic phase, leveraging subject-matter experts and client access to environments.

You will lead technical discovery and present risks and recommendations.

Qualifications

• Deep mainframe experience on COBOL-based estates.
• Hands-on experience with Hitachi VOS-family mainframes and the XDM/DCCM3 and XDM/RD stack (or demonstrable deep equivalence from IBM CICS/IMS-DC and DB2, with willingness to ramp on the Hitachi dialect).
• Proven ability to characterize a multi-million-LOC estate across online, batch, data, and integration tiers and translate it into complexity and criticality assessments.
• Experience defining maintenance or support operating models (roles, SLAs, runbooks, escalation) for legacy systems.
• Able to critically validate AI-generated analysis against source code and SME input before it informs decisions.
• Able to lead technical discovery and deep-dives directly with client subject-matter experts.
• Strong stakeholder-facing communication, including presenting findings and recommendations to senior audiences.

Responsibilities

• Own the technical discovery and characterization of the legacy mainframe COBOL estate.
• Produce complexity, criticality, and maintainability assessments of applications, batch flows, and integrations.
• Map application, data, and batch dependencies to identify risks and single points of failure.
• Oversee AI-assisted analysis and validate machine-generated findings against source and SME input before use.
• Define the proposed target maintenance operating model and support approach.
• Scope and prioritize candidate use cases for a subsequent maintenance pilot.
• Direct the work of the team and consolidate outputs into architectural findings.
• Present assessment outcomes, risks, and recommendations to client and internal stakeholders.

Skills

COBOL mainframes

Hitachi VOS/XDM3

Code estate characterization

Maintenance operating models

AI analysis validation

Technical discovery leadership

Stakeholder communication

Tools

XDM/DCCM3

CICS/IMS-DC

DB2

Job description

Description

The engagement supports a maintenance assessment and advisory for a legacy mainframe environment built primarily on COBOL, running mission-critical batch and online workloads. The objective is to establish a fact-based understanding of the current application estate and its support model, and to define a scoped, low risk maintenance pilot as the basis for a potential longer term managed services engagement.

The initial advisory phase is an assessment structured in three stages: a scope-alignment workshop to agree services, ownership, and boundaries; a current-state assessment of the code estate, data, batch/online flows, operations, and ticket history to establish baselines and pain points; and a pilot-identification stage to prioritize candidate use cases and define objectives and success metrics. The phase is diagnostic in nature - it covers evaluation, characterization, and effort estimation only, with no code remediation or production changes performed during assessment. Success depends heavily on timely access to client subject-matter experts and to the target environment.

Success depends heavily on timely access to client subject-matter experts and to the target environment.

Requirements

• Deep mainframe experience on COBOL-based estates.
• Hands-on experience with Hitachi VOS-family mainframes and the XDM/DCCM3 and XDM/RD stack (or demonstrable deep equivalence from IBM CICS/IMS-DC and DB2, with willingness to ramp on the Hitachi dialect)
• Proven ability to characterize a multi-million-LOC estate across online, batch, data, and integration tiers and translate it into complexity and criticality assessments.
• Experience defining maintenance or support operating models (roles, SLAs, runbooks, escalation) for legacy systems.
• Able to critically validate AI-generated analysis against source code and SME input before it informs decisions.
• Able to lead technical discovery and deep-dives directly with client subject-matter experts.
• Strong stakeholder-facing communication, including presenting findings and recommendations to senior audiences.

Job responsibilities

• Own the technical discovery and characterization of the legacy mainframe COBOL estate.
• Produce complexity, criticality, and maintainability assessments of applications, batch flows, and integrations.
• Map application, data, and batch dependencies to identify risks and single points of failure.
• Oversee AI-assisted analysis and validate machine-generated findings against source and SME input before use.
• Define the proposed target maintenance operating model and support approach.
• Scope and prioritize candidate use cases for a subsequent maintenance pilot.
• Direct the work of the team and consolidate outputs into architectural findings.
• Present assessment outcomes, risks, and recommendations to client and internal stakeholders.

What we offer

Empowering Projects:

• With 500+ clients spanning diverse industries and domains, we provide an exciting opportunity to contribute to groundbreaking projects that leverage cutting-edge technologies. As a team, we engineer digital products that positively impact people's lives.

Empowering Growth:

• We foster a culture of continuous learning and professional development. Our dedication is to provide timely and comprehensive assistance for every consultant through our dedicated Learning & Development team, ensuring their continuous growth and success.

DE&I Matters:

• At GlobalLogic, we deeply value and embrace diversity. We are dedicated to providing equal opportunities for all individuals, fostering an inclusive and empowering work environment.

Career Development:

• Our corporate culture places a strong emphasis on career development, offering abundant opportunities for growth. Regular interactions with our teams ensure their engagement, motivation, and recognition. We empower our team members to pursue their career goals with confidence and enthusiasm.

Comprehensive Benefits:

• In addition to equitable compensation, we provide a comprehensive benefits package that prioritizes the overall well-being of our consultants.

Flexible Opportunities:

• We prioritize work-life balance by offering flexible opportunities tailored to your lifestyle. Explore relocation and rotation options for diverse cultural and professional experiences in different countries with our company.

About GlobalLogic

• GlobalLogic, a Hitachi Group Company, is a trusted digital engineering partner to the world's largest and most forward-thinking companies. Since 2000, we've been at the forefront of the digital revolution - helping create some of the most innovative and widely used digital products and experiences. Today we continue to collaborate with clients in transforming businesses and redefining industries through intelligent products, platforms, and services.