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OPEN

COBOL Developer

OPEN

. Develop and maintain COBOL applications for the banking information system.

Posted 10/9/2026full-timeNantes • FranceMid-LevelSeniorWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in COBOL and Mainframe development, with a strong focus on maintaining and enhancing banking applications. Proficient in analyzing functional requirements and ensuring compliance with quality and security standards in a highly regulated environment.

Highest-signal resume keywords
COBOL DevelopmentIBM z/OS EnvironmentsJCLDB2CICS

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills
COBOLMainframe DevelopmentCorrective MaintenanceEvolutionary MaintenanceUnit TestingTechnical Specification WritingProduction Incident ResolutionAgile MethodologiesApplication Delivery ProcessesQuality Assurance
Soft Skills
Analytical SkillsService OrientationInterpersonal SkillsTeam SpiritOwnership
Tools & Technologies
TSO/ISPF
Industry Keywords
Banking SectorRetail BankingRegulatory ComplianceFunctional Requirements AnalysisTechnical Documentation

About the role

Key responsibilities & impact
  • Develop and maintain COBOL applications for the banking information system.
  • Participate in analyzing functional requirements with business teams.
  • Implement functional enhancements for critical applications related to accounts, lending, savings, and payment services.
  • Ensure the quality, reliability, and performance of developments.
  • Provide corrective and evolutionary maintenance for existing applications.
  • Write detailed technical specifications.
  • Perform unit testing and participate in user acceptance testing campaigns.
  • Analyze and resolve production incidents.
  • Contribute to the technical documentation of applications and processes.
  • Participate in Agile ceremonies, project committees, and design workshops.
  • Collaborate with business, functional, technical, and international teams.
  • Comply with quality and security standards, as well as regulatory requirements applicable to the banking sector.
  • Participate in code reviews and continuous improvement initiatives.
  • Ensure traceability of changes and production releases.
  • Participate in OPEN communities of practice, share best practices, and support junior colleagues.

Requirements

What you’ll need
  • Degree in computer science, software engineering, or a related field.
  • At least 4–5 years of experience in COBOL/Mainframe development.
  • Methodical approach, analytical skills, and a strong service orientation.
  • Comfortable working in complex, business-critical, and highly regulated environments.
  • Able to independently take ownership of technical assignments.
  • Excellent interpersonal skills and a strong team spirit.
  • Minimum English proficiency at C1 level required.
  • Excellent command of COBOL.
  • Good knowledge of IBM z/OS environments.
  • Proficiency in JCL, DB2, CICS, and TSO/ISPF.
  • Significant experience in corrective and evolutionary maintenance of Mainframe applications.
  • Ability to analyze and resolve production incidents.
  • Good understanding of development lifecycles and application delivery processes.
  • Experience in the banking or financial sector, ideally in retail banking.

Benefits

Comp & perks
  • Comprehensive support, including communities of practice, technical coaching, and certification training.
  • Strategic projects within a leading banking group.
  • Close support from managers and technical mentors.
  • Career development opportunities leading to roles such as Technical Lead, Mainframe Expert, or Project Manager.
  • A collaborative, dynamic, and supportive work environment.