Home
Jobs
OneSource Consulting
Mainframe Developer

Mainframe Developer

On site

Paris, France

Senior

Full Time

17-11-2025

Share this job:

Score my CV

Skills

Databases

Job Specifications

Job Title: Mainframe Developer (COBOL / PACBASE / CICS / DATACOM-DB2 Expert)

Languages: French (Mandatory), English (Professional proficiency)

Description

Seniority: 8+ years of experience

Mission:

• Participate in detailed functional analysis and contribute to functional workshops and specification drafting.

• Study technical feasibility and estimate workloads for development tasks.

• Design and develop software components using COBOL, PACBASE, CICS, and DATACOM/DB2.

• Optimize and structure DATACOM / DB2 databases for performance and scalability.

• Conduct prototyping, detailed technical analysis, and associated development work.

• Perform unit testing, integration testing, and validation with detailed documentation.

• Contribute to code reviews, technical documentation, and industrialization of components.

• Provide corrective and evolutionary maintenance for existing applications.

• Support production incident resolution (Level 2/3).

Mandatory Skills

• COBOL (Expert)

• PACBASE (Expert)

• CICS (Expert)

• DATACOM / DB2 (Expert)

Contract Details

Start Date: 14 November 2025

Duration: Initially 6 months (Possible extension)

Sector: IT

Work Conditions

Location: 75001 Paris, France

Remote: No (On-site only)

About the Company

OneSource is a pan European based recruitment, employment agency founded in response to the market demands for more flexible, cost-effective, tailored recruitment solutions. It aims at providing high-quality services to provide the best outcomes in the recruitment and employment of personnel from a diverse set of business sectors. In today's highly competitive and ever-changing IT market, hiring the right candidate can make the difference between success and failure of any mission-critical project. We can navigate you throu... Know more