CrawlJobs Logo

Senior Software Engineer - mainframe development

mastercard.com Logo

Mastercard

Location Icon

Location:
Denmark , Ballerup

Category Icon

Job Type Icon

Contract Type:
Not provided

Salary Icon

Salary:

Not provided

Job Description:

As part of the Mainframe Services team, you will contribute to the modernization and operational excellence of Mastercard’s core transaction processing systems. This role is critical to ensuring the reliability, scalability, and security of our mainframe infrastructure, which supports billions of transactions globally.

Job Responsibility:

  • Design, develop, and maintain COBOL, JCL, and DB2-based applications on z/OS
  • Collaborate with cross-functional teams to integrate mainframe services with distributed systems
  • Lead modernization efforts including migration to event-driven architectures and API enablement
  • Ensure compliance with Mastercard’s Mainframe Security Technical Standard
  • Participate in daily CRQ syncs and operational reviews
  • Mentor junior engineers and contribute to the SE Guild’s leveling and performance standards

Requirements:

  • 5+ years of experience in mainframe development (COBOL, JCL, DB2)
  • Strong understanding of z/OS architecture and batch processing
  • Experience with file transfer gateways, SFTP protocols, and integration layers
  • Familiarity with Agile methodologies and CI/CD pipelines
  • Ability to work in a global team and communicate effectively across time zones
  • A passion for modernization and continuous improvement

Nice to have:

Knowledge of Mastercard’s Bill Pay Products

Additional Information:

Job Posted:
April 16, 2026

Employment Type:
Fulltime
Job Link Share:

Looking for more opportunities? Search for other job offers that match your skills and interests.

Briefcase Icon

Similar Jobs for Senior Software Engineer - mainframe development

Senior Software Engineer

Location
Location
United States , Suwanee
Salary
Salary:
Not provided
bytewareinc.com Logo
Byteware
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Master’s degree in Computer Science, Computer Information Systems, Computer Engineering, IT, or any engineering discipline or closely related discipline
  • 2 years of experience working in job offered or closely related occupation
  • Experience in Java and J2EE technologies
  • Telecommuting from anywhere in the U.S. is allowed
  • Relocation to unanticipated domestic sites throughout the U.S. may be required
Job Responsibility
Job Responsibility
  • Develop information systems by designing, developing, implementing, testing, and installing innovative and scalable software solutions
  • Responsible for the database design and all phases of software development lifecycle by providing support from start to finish
  • Create technical documentation, design, and develop software applications using technologies such as Java, J2EE, Spring, Oracle, AWS, SOAP based web services, Spring IOC, Spring Boot 1.5, Bamboo, Spring Cloud, Spring JPA, Angular JS, MAVEN build scripts, JSP, XML, JAXB, Mainframe, Eclipse, GMC Inspire Designer, REST Services (SOA), Oracle, DB2, DOM, JAXB, JSON, AJAX and various XML technologies
  • Coordinate with Business team for requirements, clarification and other stakeholders, Architecture team for the design approval
  • Use Lucid chart Tool for designing the sequence diagram, activity diagrams, and class diagrams of the modules to communicate between components, modules, and third-party systems
  • Perform quality assurance testing of the software including unit tests, application integration test and load tests on the web server and cluster by specifying the parameters for the max clients, start servers and max spare servers
  • Automated regression test to ensure that the software and the system continue to function normally after each time code is fixed and upgraded
  • Identify and fix any bugs/errors discovered in the application thereby increasing the stability and quality of the application
  • Mentor Junior and mid-level software developers to allow for skill/knowledge development through advice, coaching, and training opportunities
  • Fulltime
Read More
Arrow Right

Senior Manager, Client Benefits

Design, plan, and manage information technology (IT) projects to deliver efficie...
Location
Location
United States , Woonsocket
Salary
Salary:
147680.00 - 162700.00 USD / Year
https://www.cvshealth.com/ Logo
CVS Health
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's degree (or foreign equivalent) in Computer Science, Computer Engineering, Computer Information Systems, Information Technology, Electrical Engineering, Engineering or a related field
  • 5 years of experience in software development life cycle testing, quality assurance, and troubleshooting
  • 5 years of experience in Waterfall and Agile Methodologies
  • 5 years of experience in performance of Manual and Automated Testing on Windows and UNIX
  • 5 years of experience in UI/API, Mainframe, Databases, EDI and WorkdayCloud
  • 5 years of experience providing domain support for healthcare industry, including performing health care data analysis and testing different healthcare ERP solutions
  • 5 years of experience in compliance and standard testing for EDI (Electronic data interchange) transactions
  • 5 years of experience with test management tools like HP ALM, Microsoft VSTS, or JIRA
  • 5 years of experience in Back End Testing, including developing and executing complex SQL queries
  • 5 years of experience in Functional Testing, Integration Testing, System Testing, Regression Testing, GUI Testing and User Acceptance Testing (UAT)
Job Responsibility
Job Responsibility
  • Design, plan, and manage information technology (IT) projects to deliver efficient technical solutions to support CVS Health initiatives
  • Manage project execution for multiple software applications to ensure adherence to quality assurance standards, schedule, and scope
  • Serve as client point of contact in defining technology driven solutions to meet business objectives
  • Define project plans, strategy, and roadmap and measure progress against timelines and deliverables
  • Oversee and approve solutions design and develop structures and accurate benefit plan requirements to achieve intended outcomes or recommend alternatives
  • Serve as the subject matter expert and work with key stakeholders to determine project requirements and objectives and translate into high quality products that promote customer satisfaction
  • Confer with project personnel to identity and resolve problem and ensure alignment between internal teams and clients on decision making and objectives
  • Leverage operational metrics and production error root cause information to improve requirements gathering, configuration, and testing processes
  • Develop updated project plans to include new capabilities and ensure team resources are available for successful projects and initiatives
  • Evaluate and recommend tools, technologies, and processes to produce high quality software product platforms, and collaborate with benefits and clinical teams and customers to produce cutting-edge solutions
What we offer
What we offer
  • CVS Health bonus, commission or short-term incentive program
  • Company equity award program
  • Full range of medical, dental, and vision benefits
  • 401(k) retirement savings plan
  • Employee Stock Purchase Plan
  • Fully-paid term life insurance plan
  • Short-term and long term disability benefits
  • Well-being programs
  • Education assistance
  • Free development courses
  • Fulltime
Read More
Arrow Right

Senior Manager, Client Benefits

Design, plan, and manage information technology (IT) projects to deliver efficie...
Location
Location
United States , Woonsocket
Salary
Salary:
125590.00 - 162700.00 USD / Year
https://www.cvshealth.com/ Logo
CVS Health
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor’s degree (or foreign equivalent) in Computer Science, Computer Engineering, Information Technology, Engineering, or a related field
  • 5 years of progressive, postbaccalaureate experience in the job offered or related occupation
  • 5 years of experience in Software development lifecycle (SDLC)
  • 5 years of experience in Software development best practices
  • 5 years of experience in Agile methodologies or SAFe Software Development Principles
  • 5 years of experience in XML, JSON, HTML, CSS, or JavaScript
  • 5 years of experience in SAS or SQL
  • 5 years of experience in Natural Language Processing (NLP): Scikit-Learn, SpaCity, Pytorch, or Spark NLP
  • 5 years of experience in IBM Mainframes: COBOL, JCL, CICS, VSAM, or DB2
  • 5 years of experience in Relational database concepts
Job Responsibility
Job Responsibility
  • Design, plan, and manage information technology (IT) projects to deliver efficient technical solutions
  • Manage project execution for multiple software applications to ensure adherence to quality assurance standards, schedule, and scope
  • Serve as client point of contact in defining technology driven solutions to meet business objectives
  • Define project plans, strategy, and roadmap and measure progress against timelines and deliverables
  • Oversee and approve solutions design and develop structures and accurate benefit plan requirements to achieve intended outcomes or recommend alternatives
  • Serve as the subject matter expert and work with key stakeholders to determine project requirements and objectives and translate into high quality products that promote customer satisfaction
  • Confer with project personnel to identity and resolve problem and ensure alignment between internal teams and clients on decision making and objectives
  • Leverage operational metrics and production error root cause information to improve requirements gathering, configuration, and testing processes
  • Develop updated project plans to include new capabilities and ensure team resources are available for successful projects and initiatives
  • Evaluate and recommend tools, technologies, and processes to produce high quality software product platforms, and collaborate with benefits and clinical teams and customers to produce cutting-edge solutions
What we offer
What we offer
  • CVS Health bonus, commission or short-term incentive program
  • Company equity award program
  • Full range of medical, dental, and vision benefits
  • 401(k) retirement savings plan
  • Employee Stock Purchase Plan
  • Fully-paid term life insurance plan
  • Short-term and long term disability benefits
  • Well-being programs
  • Education assistance
  • Free development courses
  • Fulltime
Read More
Arrow Right

Senior Java Developer

DefineX is a next-generation consulting house and venture builder, helping finan...
Location
Location
Turkey , İstanbul
Salary
Salary:
Not provided
definex.com Logo
DefineX
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • BS or MS in Computer Engineering, Software Engineering, Mathematics Engineering or other disciplines
  • Minimum 4 years of experience in Software Development using Java and JavaScript
  • Full stack development experience in Agile based end-2-end delivery
  • Strong knowledge of OOP, Design Patterns, Test Driven Development
  • Experience in Java, Spring Boot, Microservices Architecture, JavaScript technologies is must
  • Eligible to work in Turkey
Job Responsibility
Job Responsibility
  • Coding activities on a large-scale technology transformation project which includes from mainframe to microservices, high-tech platform transformations
  • Primary responsibilities in software development lifecycle, including meeting clients to determine requirements, analysis, design, development, testing, and implementation of user interfaces and backend services
What we offer
What we offer
  • A mentally and physically enabling environment
  • Growth and Development with training and support and a Growth Coach
  • Independence and Ownership in creative and challenging projects
  • 20 vacation days per annum
  • Certain hours a year to volunteer and organize office volunteer programs with local NGOs
  • Competitive private health and life insurance coverage
  • Fulltime
Read More
Arrow Right
New

Java Engineering Manager, Cloud Native & AI Development - Senior Vice President

Own and drive end-to-end migration of legacy Mainframe workloads (COBOL, JCL, CI...
Location
Location
India , Pune, Chennai
Salary
Salary:
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's or Master's degree in Computer Science, Information Technology, Engineering, or a related technical discipline
  • 13–18+ years of progressive software engineering experience, with at least 5-8 years in a senior technical leadership role (Tech Lead, Staff Engineer, principle)
  • Demonstrated experience leading or significantly contributing to at least one large-scale Mainframe modernization or legacy platform migration programme
  • Prior experience in financial services, banking, or a similarly regulated industry strongly preferred
  • Java 17/21 (Expert), Python, COBOL / JCL (reading & assessment level)
  • Spring Boot, Spring Cloud, Spring Security, Spring Data JPA, Project Reactor / WebFlux
  • OpenShift, Kubernetes, Docker, Helm
  • Tekton, Harness, Jenkins, Git (Bitbucket / GitHub), Artifactory, SonarQube
  • Oracle, MongoDB, PostgreSQL, MS SQL Server, Redis, DB2/z
  • Apache Kafka, IBM MQ
Job Responsibility
Job Responsibility
  • Mainframe Modernisation & Platform Transformation
  • Technology Operating Cost Reduction
  • Hands-On Engineering & Technical Leadership
  • Generative AI & Agentic Development
  • People Leadership & Stakeholder Management
  • Fulltime
Read More
Arrow Right

Prod Mgmt Engineering Senior Consultant

NTT DATA’s Application Modernization practice is the leading provider of rehosti...
Location
Location
India , Bangalore
Salary
Salary:
Not provided
nttdata.com Logo
NTT DATA
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven experience with the following practices: Works well with clients, their stakeholders and end users
  • Experience in requirements solicitation
  • Able to differentiate between needs & wants
  • Experience in translating business requirements into technical requirements
  • Ability to work well within the team
  • Familiar with programming languages, and able to read some legacy code at a high-level in order to understand code rules
  • Bachelor's degree in Computer Science, Business, or equivalent
  • Technical experience
Job Responsibility
Job Responsibility
  • Implements migration of Mainframe applications into software equivalent systems (rehosting)
  • Uses knowledge of Mainframe technologies like COBOL, JCL, CICS, VSAM, Assembler, DB2, IMS, files, etc to implement the rehosting solution for a mainframe application
  • Uses knowledge of Unikix or Microfocus software to implement the solution
  • Uses knowledge of Cloud technologies to rehost Mainframe systems to the Cloud
  • Uses knowledge of CLIST, REXX, PL/1, Easytrieve and Assembler to find right migration solution
  • Uses Linux scripting to implement migration glues
  • Implements DevOps solutions on the rehosted system
  • Moderate understanding of legacy and current technologies
  • ability to identify code patterns
  • ability to develop and implement moderate complexity code, using common frameworks and NTTDS tools and methodology
Read More
Arrow Right
New

Apps Dev Tech Sr Lead Analyst Java SVP

Apps Dev Tech Sr Lead Analyst Java SVP at Citi. Own and drive end-to-end migrati...
Location
Location
India , Chennai, Pune
Salary
Salary:
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's or Master's degree in Computer Science, Information Technology, Engineering, or a related technical discipline
  • 12–16 years of progressive software engineering experience, with at least 5 years in a senior technical leadership role (Tech Lead, Staff Engineer, principle)
  • Demonstrated experience leading or significantly contributing to at least one large-scale Mainframe modernisation or legacy platform migration programme
  • Prior experience in financial services, banking, or a similarly regulated industry strongly preferred
  • Java 17/21 (Expert), Python, COBOL / JCL (reading & assessment level)
  • Spring Boot, Spring Cloud, Spring Security, Spring Data JPA, Project Reactor / WebFlux
  • OpenShift, Kubernetes, Docker, Helm
  • Tekton, Harness, Jenkins, Git (Bitbucket / GitHub), Artifactory, SonarQube
  • Oracle, MongoDB, PostgreSQL, MS SQL Server, Redis, DB2/z
  • Apache Kafka, IBM MQ
Job Responsibility
Job Responsibility
  • Own and drive end-to-end migration of legacy Mainframe workloads (COBOL, JCL, CICS, IMS, DB2/z) to modern Java-based microservices deployed on enterprise container platforms (OpenShift / Kubernetes)
  • Conduct application assessments to identify migration candidates, define target-state architectures, and produce sequenced migration roadmaps with risk registers and rollback plans
  • Establish reusable migration patterns, tooling, and runbooks to accelerate successive migration waves
  • Leverage AI-assisted code translation tools (e.g., autonomous AI coding agents such as Devin) to automate COBOL-to-Java conversion at scale, with human-in-the-loop review gates
  • Validate functional parity post-migration through automated testing strategies (unit, integration, regression, performance)
  • Identify and quantify cost-reduction opportunities across MIPS consumption, software licensing, infrastructure footprint, and operational overhead
  • Build and maintain a technology cost model
  • track savings realisation against committed targets on a monthly cadence
  • Drive rationalisation of redundant systems, decommission end-of-life platforms, and consolidate tooling to reduce Total Cost of Ownership (TCO)
  • Partner with Finance and Vendor Management to renegotiate contracts and optimise spend through right-sizing, reserved capacity, and FinOps practices
  • Fulltime
Read More
Arrow Right

Prod Mgmt Engineering Senior Consultant

The Senior Consultant in Product Management Engineering will implement migration...
Location
Location
India , Bangalore
Salary
Salary:
Not provided
nttdata.com Logo
NTT DATA
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven experience with the following practices: Works well with clients, their stakeholders and end users
  • Experience in requirements solicitation
  • Able to differentiate between needs & wants
  • Experience in translating business requirements into technical requirements
  • Ability to work well within the team
  • Familiar with programming languages, and able to read some legacy code at a high-level in order to understand code rules
  • Bachelor's degree in Computer Science, Business, or equivalent
  • Technical experience
  • 3 Years to 5 Years’ Relevant Experience
Job Responsibility
Job Responsibility
  • Implements migration of Mainframe applications into software equivalent systems (rehosting)
  • Uses knowledge of Mainframe technologies like COBOL, JCL, CICS, VSAM, Assembler, DB2, IMS, files, etc to implement the rehosting solution for a mainframe application
  • Uses knowledge of Unikix or Microfocus software to implement the solution
  • Uses knowledge of Cloud technologies to rehost Mainframe systems to the Cloud
  • Uses knowledge of CLIST, REXX, PL/1, Easytrieve and Assembler to find right migration solution
  • Uses Linux scripting to implement migration glues
  • Implements DevOps solutions on the rehosted system
  • Moderate understanding of legacy and current technologies
  • ability to identify code patterns
  • ability to develop and implement moderate complexity code, using common frameworks and NTTDS tools and methodology
  • Fulltime
Read More
Arrow Right