Mainframe Developer

About Atos Group

Atos Group is a global leader in digital transformation with approximately 56,000 employees and annual revenue of approximately €7.2 billion, operating in 54 countries under two brands: Atos for services and Eviden for products and systems. The Group provides tailored AI-powered, end-to-end solutions for all industries and is committed to a secure and decarbonized future.

About Eviden

Eviden is the Atos Group brand for hardware and software products, operating in 36 countries across advanced computing, cybersecurity products, mission-critical systems and vision AI. Eviden provides innovative and eco-efficient solutions in AI, computing, security, data and applications.

Job Description

• Design, develop and support complex, large-scale enterprise mainframe applications in high-volume production environments.
• Execute technical work for assigned mainframe applications, including system design, batch and online architecture, prototype development, coding and performance optimization.
• Collaborate with business users, customers, internal stakeholders and technical product managers to improve platform stability, scalability and operational capabilities.
• Lead and enforce mainframe engineering best practices, including code reviews, JCL standards, version control, CI/CD implementation, release management and production support processes.
• Implement automated and scalable deployment solutions across development, QA, UAT and production mainframe environments.
• Troubleshoot and resolve complex system issues and provide strategic technical recommendations.
• Design and implement resilient, secure and high-performing mainframe solutions.
• Guide technical direction, contribute to modernization initiatives and support long-term platform roadmap planning.
• Mentor junior engineers and use operational metrics to drive continuous improvement and performance optimization.

Qualifications

• At least 5 years of experience with mainframe technologies including COBOL, JCL, CICS, DB2, VSAM, IMS, MQ Series and z/OS.
• Experience with batch processing, online transaction systems, production support, debugging and performance tuning.
• Experience with tools such as Abend-AID, File-AID, IBM Debug Tool, Tivoli, Splunk, Dynatrace and Kibana.
• Experience with RESTful API integration, Kafka/event-driven systems, ITIL processes and scheduling tools such as Control-M.
• Exposure to cloud and mainframe modernization concepts is an advantage.

Atos is committed to diversity and inclusion and to creating a fair work environment.