Senior Change and Release Manager

About the role

Ensono is seeking an experienced professional to lead change and release management for its zOS, AIX and AS400 platforms. The role involves overseeing the full lifecycle of platform software changes, ensuring stability, compliance and continuous improvement.

Key responsibilities

• Globally run the zOS, AIX and AS400 operating system platform release and test management.
• Act as central point to plan platform software change requests, creating related roadmaps and timelines.
• Provide and maintain packaging environment and software inventory for other teams.
• Execute test planning and coordination with engineering teams, including test plans, orders, sign‑off calls and reports.
• Work within change management methodology and procedures to deliver a final stable product to operations.
• Coordinate deployment of fixes and single distributions for platform products.
• Ensure compliance and audibility for software components according to internal SDLC/QAP/MER/ICC processes.
• Provide continual improvement to platform release and test management processes.
• Ensure quality, security, reliability and compliance of solutions by applying digital principles and functional/non‑functional requirements.
• Build observability into solutions, monitor production health, resolve incidents and remediate root causes.
• Learn new technologies and practices, reuse strategic platforms and standards, evaluate options and make sustainable decisions.

Required profile

• Minimum 10 years of experience in IT services.
• Basic system knowledge of IBM zOS mainframe, AIX or AS400 (appreciated, not mandatory).
• ITIL knowledge, especially Release, Test and Change Management (appreciated, not mandatory).
• Strong change management and test management knowledge.
• Personal skills: teamwork, initiative, efficiency, friendliness, ability to work under pressure, precision.
• Customer‑focused demeanor with good manners and networking skills.
• Excellent communication skills in English.

Required skills

• IBM zOS
• AIX
• AS400
• ITIL