Senior Mainframe Modernization Lead, AWS ProServe

Amazon Web Services (AWS); Madrid; On-site; EUR 90,000 - 130,000; Full time

Job summary

Amazon Web Services (AWS) is seeking a Delivery Consultant to guide customers through design, implementation and management of AWS solutions, ensuring business objectives are met.

You will lead end-to-end migration assessments across enterprise estates, map dependencies, design waves, and advise on risk, using best practices and well-architected principles.

The role requires collaboration with stakeholders, travel up to 50%, and deep knowledge of mainframe modernization and cloud-native options.

Qualifications

• 5+ years with mainframe tech (z/OS, COBOL, JCL, CICS, IMS, Db2, VSAM)
• Experience delivering mainframe migration or modernization (re-host, re-platform, refactor)
• Experience in solution design/architecture including cloud and networks
• OO languages (Java, C#)
• Experience with large, customer-facing projects

Responsibilities

• Lead assessment and discovery of customer mainframe estates, including portfolio analysis and modernization readiness evaluation
• Design and implement modernization solutions on AWS—replatforming, refactoring to cloud-native services, and automated code transformation approaches
• Provide deep technical guidance on mainframe technologies and their AWS equivalents throughout project delivery
• Collaborate with customer architects, development teams, and business stakeholders to define migration waves, prioritise workloads, and manage cutover risk
• Act as a trusted advisor on mainframe modernization trends, including AI-assisted code transformation, automated testing strategies, and incremental migration patterns
• Share knowledge within the organisation through mentoring, training, and creating reusable artifacts such as modernization playbooks and reference architectures

Skills

Mainframe tech

Migration

Cloud design

OO languages

Stakeholder mgmt

Education

Bachelor's degree

Tools

AWS Transform

AWS Mainframe Modernization

Blu Age

Rocket Enterprise Server

Job description

Amazon Web Services (AWS) is seeking a Delivery Consultant to guide customers through design, implementation and management of AWS solutions, ensuring business objectives are met.

You will lead end-to-end migration assessments across enterprise estates, map dependencies, design waves, and advise on risk, using best practices and well-architected principles.

The role requires collaboration with stakeholders, travel up to 50%, and deep knowledge of mainframe modernization and cloud-native options.