Senior Delivery Consultant - Mainframe, AWS Professional ServicesJob ID: | AWS EMEA SARL (Spain Branch)The Amazon Web Services Professional Services (ProServe) team is seeking a skilled Delivery Consultant to join our team at Amazon Web Services (AWS). In this role, you'll work closely with customers to design, implement, and manage AWS solutions that meet their technical requirements and business objectives. You'll be a key player in driving customer success through their cloud journey, providing technical expertise and best practices throughout the project lifecycle.Possessing a deep understanding of AWS products and services, as a Delivery Consultant you will be proficient in leading large-scale portfolio assessment and application disposition for enterprise data centre exit programmes spanning multiple countries and regulatory jurisdictions.

You'll work closely with stakeholders to gather requirements, assess current infrastructure through discovery tooling and application owner interviews, and propose effective migration strategies to AWS — assigning R-strategies (Rehost, Replatform, Refactor, Retire, Retain, Relocate) and designing wave plans that respect dependency groupings, capacity constraints, and regulatory frozen zones.As trusted advisors to our customers, providing guidance on migration best practices, risk mitigation, and innovative solutions, you will be responsible for leading the end-to-end migration assessment process, ensuring adherence to AWS well-architected principles, optimizing wave sequencing, and managing risks throughout the programme lifecycle.The AWS Professional Services organization is a global team of experts that help customers realize their desired business outcomes when using the AWS Cloud. We work together with customer teams and the AWS Partner Network (APN) to execute enterprise cloud computing initiatives. Our team provides assistance through a collection of offerings which help customers achieve specific outcomes related to enterprise cloud adoption.

We also deliver focused guidance through our global specialty practices, which cover a variety of solutions, technologies, and industries.Key job responsibilitiesLeading the assessment and discovery of customer mainframe estates, including application portfolio analysis, dependency mapping,



and modernisation readiness evaluationDesigning and implementing modernisation solutions on AWS — including replatforming, refactoring to cloud-native services, and automated code transformation approachesProviding deep technical guidance on mainframe technologies (COBOL, PL/I, JCL, CICS, IMS, DB2, VSAM) and their AWS equivalents throughout project deliveryCollaborating with customer architects, development teams, and business stakeholders to define migration waves, prioritise workloads, and manage cutover riskActing as a trusted advisor to customers on mainframe modernisation trends, including AI-assisted code transformation, automated testing strategies, and incremental migration patternsSharing knowledge within the organisation through mentoring, training, and creating reusable artifacts such as modernisation playbooks, assessment frameworks, and reference architecturesAbout the teamDiverse Experiences: AWS values diverse experiences. Why AWS?

Amazon Web

Services (AWS) is the world's most comprehensive and broadly adopted cloud platform. We pioneered cloud computing and never stopped innovating — that's why customers from the most successful startups to Integral 500 companies trust our robust suite of products and services to power their businesses.Inclusive Team Culture - Here at AWS, it's in our nature to learn and be curious. Mentorship & Career Growth - We're continuously raising our performance bar as we strive to become Earth's Best Employer.

Achieving success at work should never come at the expense of sacrifices at home, which is why we strive for flexibility as part of our working culture. When we feel supported in the workplace and at home, there's nothing we can't achieve in the cloud.Basic QualificationsSpeak, write, and read fluently in EnglishBachelor's degree in Computer Science, Engineering or a related field,



or equivalent professional or military experience5+ years of hands-on experience with mainframe technologies (e.z/OS, COBOL, PL/I, JCL, CICS, IMS, Db2, VSAM)Experience delivering mainframe migration or modernization projects (e.re-host, re-platform, refactor, replace)Experience in solution design and architecture, including cloud (AWS or equivalent), systems, networking and operating systemsSoftware development experience with object-oriented languages (e.Java, C#)Experience delivering complex, large-scale, customer-facing projects (external or internal)Preferred QualificationsExperience with mainframe modernization tools (e.AWS Transform, AWS Mainframe Modernization, Blu Age, Rocket Enterprise Server)Experience using AI-powered and agentic tools (e.Kiro, Claude Code) to speed up code analysis, transformation and testingExperience migrating mainframe data (e.Db2, VSAM, IMS) to relational databases (e.Amazon Aurora, PostgreSQL)Experience across a wide range of AWS services, including containers and serverless (e.EC2, RDS, EKS, Lambda)AWS Professional level certifications (e.Solutions Architect Professional)Experience with batch modernization, data replication and integration (e.Kafka, Kinesis, Precisely)Experience with CI/CD and DevOps practices for mainframe and modernized applicationsExperience in functional equivalence testing and cutover planning for mission-critical workloadsExperience in financial services, ideally in large-scale migration programmesStrong communication skills with technical and non-technical audiencesProfessional working proficiency in Spanish is a strong advantageAmazon is an equal opportunities employer. Protecting your privacy and the security of your data is a longstanding top priority for Amazon.

Please consult our Privacy Notice ( ) to know more about how we collect, use and transfer the personal data of our candidates.If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit for more information. Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

📌 Senior Delivery Consultant - Mainframe, Aws Professional Services (Madrid)
🏢 Amazon Web Services
📍 Madrid