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Mainframe z/OS Specialist

On-site Lisbon, Portugal

Company Description

Alter Solutions Portugal is an IT Consultancy Company, promoter of Digital Transformation, part of the Alter Solutions Group, created in 2006, in Paris.

In 2022, Alter Solutions joined the act digital group, constituting a global community of talent in Technology, with presence in thirteen countries: Germany, Belgium, Brazil, Canada, United States of America, Mexico, Morocco, Spain, France, Luxembourg, Poland, Portugal and Serbia. Also in 2023, we were certified as a Great Place to Work©.

In Portugal, we partner with over 120 clients and a team of over 500 people, working in projects for industries as diverse as banking, insurance, transportation, aviation, energy, and telecom.

Headquarters of the Nearshore IT center, Alter Solutions Portugal has a dedicated team of around 30 specialized professionals, integrated into projects with several internationally renowned clients.

Job Description

We are looking for experienced professionals to join a new team specializing in Mainframe z/OS for an exciting international project. This team will be responsible for developing and maintaining solutions in complex environments, ensuring system performance and stability.

Responsibilities:

  • Develop and maintain JCL scripts and Icetool utilities.
  • Work with IFPF and REXX for process automation and optimization.
  • Manage and monitor workloads using TWS and SDSF.
  • COBOL programming for application development and maintenance.
  • Work with DB2 databases, including queries and optimization.
  • Operate in Software AG environments, utilizing Natural, Adabas, and Natural-DB2.
  • Implement solutions with webMethods EntireX for system integration.
  • Develop and maintain applications using NaturalOne from Software AG.
  • Ensure code quality and adherence to best development practices.
  • Communicate with international teams for requirement alignment and deliverables.

Qualifications

  • Proven experience in Mainframe z/OS system development and maintenance.
  • Proficiency in JCL and Icetool.
  • Strong knowledge of IFPF and REXX.
  • Experience with TWS and SDSF.
  • COBOL programming expertise.
  • Knowledge of DB2 databases.
  • Experience in Software AG environments, including Natural, Adabas, Natural-DB2, and webMethods EntireX.
  • Familiarity with NaturalOne from Software AG.
  • Fluency in English (mandatory).
  • Availability for remote work, with possible sporadic travel to Europe at the beginning of the project.

Additional Information

Source: the employer's careers page. Last checked 2026-10-27. Posted 2025-02-20.

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