Mainframe Technical Architect - Freelance (M/F)

Collective.workHaute-GaronneEURESpublished 10/29/2026
Must-have:JavaCloudSenior
Machine translation — original language: French.Show original

CONTEXTAs part of the modernization of an information system, we are looking for a senior Technical Architect / Integration specialist to support the transition from a Mainframe environment to Java / Cloud architectures.

MISSIONS

  • Contribute to the design and evolution of the IT architecture, in connection with the business and technical teams
  • Lead the integration between the existing Mainframe environment and the target applications (Java / Cloud)
  • Analyze the existing setup and identify points of attention related to batch processing and data access
  • Define and support migration or cohabitation trajectories between environments
  • Provide your expertise and recommendations to the project teams, and guarantee the consistency of technical choices

TOOLS & ENVIRONMENT

  • Mainframe
  • COBOL
  • DB2
  • Java
  • Cloud

WORKING CONDITIONS

  • Mission location: Toulouse
  • 2 days of remote work per week
  • Start date: ASAP
  • Professional English mandatory
  • Required seniority: 8 to 10 years minimum of experience
  1. Minimum 8 years of experience in technical architecture and/or integration (senior profile)
  2. Good understanding of the Mainframe environment and its key concepts (COBOL, DB2, batch processing), without the need to be a highly specialized expert
  3. Knowledge of Java and Cloud environments, or a strong interest in these subjects
  4. Ability to grasp general concepts rather than exclusive mastery of a single technology
  5. Strong interpersonal skills, pedagogical approach, and ability to work with various stakeholders