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DE_Mainframe Engineer_Modernization - UC - GDSF02

Location:  Bengaluru
Other locations:  Primary Location Only
Salary: Competitive
Date:  Dec 4, 2025

Job description

Requisition ID:  1663579

At EY, we’re all in to shape your future with confidence. 

We’ll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go. 

Join EY and help to build a better working world. 

 

Legacy Modernization - Gen AI Developer

 

The Opportunity
We are the only professional services organization who has a separate business dedicated exclusively to the financial services marketplace. Join the Digital Engineering Team, and you will work with multi-disciplinary teams from around the world to deliver a global perspective. Aligned to key industry groups including Asset Management, Banking and Capital Markets, Insurance and Private Equity, Health, Government, Power and Utilities, we provide integrated advisory, assurance, tax, and transaction services. Through diverse experiences, world-class learning, and individually tailored coaching, you will experience ongoing professional development. That’s how we develop outstanding leaders who team to deliver on our promises to all of our stakeholders, and in so doing, play a critical role in building a better working world for our people, for our clients, and for our communities. Sound interesting? Well, this is just the beginning. Because whenever you join, however long you stay, the exceptional EY experience lasts a lifetime.
We are seeking a Mainframe Application Development Engineer with experience in Banking Domain at EY GDS. The successful candidate will be responsible for designing and implementing solutions that support EY's efforts in enhancing and maintaining client workloads, with a focus on legacy systems and legacy modernization. Collaboration with development teams will be essential to build, deploy, and manage applications that align with business objectives and enhance our Banking services. Additionally, there will be opportunities to support EY's efforts in modernizing client workloads from legacy systems. This is a fantastic opportunity to be part of a leading firm whilst being instrumental in the growth of a critical service offering.
EY Digital Engineering is a unique, industry-focused business unit that provides a broad range of integrated services that leverage deep industry experience with strong functional capability and product knowledge. The Digital Engineering (DE) practice works with clients to analyse, formulate, design, mobilize and drive digital transformation initiatives. We advise clients on their most pressing digital challenges and opportunities surround business strategy, customer, growth, profit optimization, innovation, technology strategy, and digital transformation.  We also have a unique ability to help our clients translate strategy into actionable technical design, and transformation planning/mobilization.  Through our unique combination of competencies and solutions, EY’s DE team helps our clients sustain competitive advantage and profitability by developing strategies to stay ahead of the rapid pace of change and disruption and supporting the execution of complex transformations.
Your Key Responsibilities
-    Designing/ maintaining mainframe applications, supporting mainframe modernization activities.
-    Participate in all aspects of analysis, design, coding testing & implementation
-    Participate in application assessment, discovery, roadmap development and application modernization.
-    Working in Agile methodology.
-    Work with vendor teams from IT, Ops & Business.
-    Analyse business requirements; write functional and minor development specifications.
-    Code solutions that meet the business requirements in a timely and accurate manner.
-    Follow and improve existing coding standards and best practices.
-    Must have significant experience developing applications under an onshore-offshore model.
-    Capability to approach problems as challenges and deal with them positively and constructively.
Sets an example for team members in the following manner: hard work, a focus on client delivery, preparedness, organization, a positive attitude and respect for others.
Primary Skills / Must have
Technical skills:
-    Must demonstrate strong technical and business leadership skills.
-    Strong Cobol, CICS, JCL, VSAM, DB2 experience.
-    Experience in Version Controller Tools like ENDEVOR, CHANGEMAN, ISPW, GIT; Scheduling Tools: CA7, Control-M, OPC.
-    Experience in MQ and DB2 stored procedure.
-    Experience in creating/consuming data in relational database environments (preferably DB2, SQL).
-    Experience in mainframe modernization (e.g., migrating to Azure, AWS, or hybrid systems), R-Lanes such as Rewrite, Rehost or Refactor.
-    Experience in Data Migration from Mainframe to Cloud/On-prem solutions
-    Working experience in one or more of the following technologies – Cloud (Azure/AWS/GCP), Java, Python
-    Strong analytical skills, ability to interpret business requirements and produce functional and technical  
design documents.
Professional skills:
-    Detail oriented, ability to turn deliverables around quickly with high degree of accuracy.
-    Good time management skills – ability to prioritize and multi-task, handling multiple efforts at once.
-    Strong written and oral communications skills are a must.
-    Strong desire to understand and learn domain.

Secondary Skills / Desired skills
-    Experience in PL/I, IMS.
-    Knowledge/experience in developing and using Generative AI solutions.
-    Knowledge of microservices architecture or API integration with mainframe.
-    Familiarity with cloud-based DevOps tools (Jenkins, GitHub Actions, Azure DevOps).
-    Languages like Python, Java, .Net, C, C++.
-    Knowledge of Native stored procedures.
-    Experience in the financial/banking industry.

Preferred Qualifications:
-    Experience: 5-10 years of hands-on experience in the solutioning and delivery of applications hosted in Mainframes. Exposure to modern technologies like Cloud, Java, Python, GenAI.
-    Certifications: Azure Developer/DevOps Associate or Azure AI Engineer Associate
-    Agile Methodologies: Familiarity with Agile development practices and methodologies.
-    Problem-Solving: Strong analytical skills with the ability to troubleshoot and resolve complex issues.
Education:
Degree: Bachelor’s degree in Computer Science, Engineering, Information Technology, or a related field, or equivalent practical experience
What we offer
EY Global Delivery Services (GDS) is a dynamic and truly global delivery network. We work across six locations – Argentina, China, India, the Philippines, Poland and the UK – and with teams from all EY service lines, geographies and sectors, playing a vital role in the delivery of the EY growth strategy. From accountants to coders to advisory consultants, we offer a wide variety of fulfilling career opportunities that span all business disciplines. In GDS, you will collaborate with EY teams on exciting projects and work with well-known brands from across the globe. We’ll introduce you to an ever-expanding ecosystem of people, learning, skills and insights that will stay with you throughout your career. 
•    Continuous learning: You’ll develop the mindset and skills to navigate whatever comes next. 
•    Success as defined by you: We’ll provide the tools and flexibility, so you can make a meaningful impact, your way. 
•    Transformative leadership: We’ll give you the insights, coaching and confidence to be the leader the world needs. 
•    Diverse and inclusive culture: You’ll be embraced for who you are and empowered to use your voice to help others find theirs. 

 

EY | Building a better working world

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