Hybrid Mainframe Migration Engineer – COBOL, Java, Assembly

Posted 31 minutes ago

Apply now

About the role

  • Mainframe Migration Engineer working on modernization projects for German client. Analyzing codebases and supporting transitions to modern architectures in a remote role based in Portugal.

Responsibilities

  • Join a high-impact Mainframe Modernization project for a major enterprise client in Germany
  • Migration of large-scale legacy Mainframe systems for a leading German enterprise
  • Analyzing and refactoring existing COBOL and Assembly codebases
  • Supporting the transition to Java-based modern architectures
  • Operating across hybrid environments where legacy and modern systems coexist during the migration window
  • Active migration engineering with real complexity, tight timelines, and collaboration with international teams across Portugal and Germany

Requirements

  • Mid to Senior level — 5+ years of experience in software engineering with direct involvement in Mainframe environments
  • Strong hands-on experience with at least two of the following: COBOL, Java, Assembly — depth in all three is a significant differentiator
  • Proven experience in Mainframe migration or modernization projects — you understand the complexity of migrating business-critical legacy systems, not just reading the code
  • Ability to analyze, document, and modernize existing legacy codebases — including understanding undocumented or poorly documented systems
  • Comfortable operating in hybrid environments where Mainframe and modern stacks coexist
  • Strong problem-solving skills in complex, low-tolerance-for-error contexts
  • Able to onboard fast and contribute immediately — this project requires minimal ramp-up time
  • English B2+ — working language for collaboration with international teams and German client stakeholders
  • Willingness to travel to Porto approximately once a month when project needs require it

Job title

Mainframe Migration Engineer – COBOL, Java, Assembly

Job type

Experience level

Mid levelSenior

Salary

Not specified

Degree requirement

No Education Requirement

Tech skills

Location requirements

Report this job

See something inaccurate? Let us know and we'll update the listing.

Report job