The Mainframe Legacy Modernization Engineer will play a key role in transforming large, complex mainframe applications into modern, scalable, and cloud‑ready architectures. The engineer will work across assessment, reverse engineering, migration, refactoring, and re‑architecture initiatives, collaborating with architects, business SMEs, and cloud teams to modernize COBOL‑based systems into microservices, APIs, and distributed platforms.
This role requires strong hands‑on mainframe expertise combined with modern application, integration, data transformation and cloud engineering skills.
Key Responsibilities
· Analyze complex mainframe applications (COBOL, CICS, JCL, DB2, VSAM, MQ) to understand business rules, data flows, batch cycles, and system interdependencies.
· Experienced in Mainframe transformation design patterns
· Hands-on transformation knowledge
· Mainframe Data migration experience
· Perform inventory analysis, call‑chain analysis, and functional decomposition of monolithic applications.
· Extract and document technical and business rules using automated discovery or reverse‑engineering tools.
· Design and implement modernization strategies including re‑host, re‑platform, re‑factor, re‑architect, replace, or retire approaches
· Convert or refactor legacy COBOL logic into modern languages such as Java using automated tools or manual re‑engineering techniques.
· Apply incremental modernization patterns such as strangler‑fig and coexistence models to reduce migration risk.
· Modernize JCL‑based batch processes into cloud‑native batch frameworks (e.g., Spring Batch, workflow orchestration).
· Support migration or re‑engineering of scheduling, file transfer, and output management components.
· Ensure functional parity and data integrity between legacy and modernized systems.
Work Model:
We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a position that requires 4 days a week in a client office in Jersey City, New Jersey. Regardless of our working arrangement, we are here to support a healthy work-life balance though our various wellbeing programs.
The working arrangements for this role are accurate as of the date of posting. This may change based on the project you’re engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.
What you will need to have to be considered:
· Bachelor’s degree in business administration, Information Technology, Engineering, or a related field (Required)
· 7-10 years of proven experience in managing large-scale or enterprise level initiatives.
· Experience with AI‑based transformation accelerators (AI‑assisted code conversion, rule extraction, pattern detection).
- Familiarity with cloud platforms (AWS, Azure, GCP) and hybrid architectures.
- Experience modernizing batch workloads into cloud‑native orchestration tools (Airflow, Step Functions, Argo, etc.).
- Background in mainframe‑heavy industries such as banking, insurance, or government.
- Certifications such as IBM z/OS Administrator/Developer, cloud certifications, ITIL, PMP, or Scrum Master.
Work Authorization:
Must be legally authorized to work in the United States without employer sponsorship now or in the future.
Compensation (Pay Transparency)
Base salary range (good-faith estimate): $81,450 - $129,500 annually.
Eligible for Cognizant’s discretionary annual incentive program, subject to applicable plan terms.
Benefits
Medical, dental, vision, and life insurance.
401(k) plan with company contributions.
Employee Stock Purchase Plan.
Employee Assistance Program.
15 Paid holidays plus PTO.
Paid parental leave and fertility assistance.
Learning and development programs and certifications.
La Comunidad Cognizant:
Somos un equipo que se aprecia y apoya mutuamente. Nuestros asociados trabajan en un entorno colaborativo e integrador en el que todos pueden prosperar.
- Cognizant es una comunidad global con más de 300.000+ asociados en todo el mundo.
- No solo soñamos con un mundo mejor, sino que trabajamos para hacerlo realidad.
- Cuidamos de nuestros asociados, clientes, socios, comunidades y entorno haciendo lo correcto.
- Fomentamos un entorno innovador en el que puedes desarrollar tu carrera profesional.
Acerca de nosotros
Cognizant (NASDAQ: CTSH) es arquitecto de soluciones de IA y proveedor de servicios tecnológicos que traduce la inversión en inteligencia artificial en valor empresarial real mediante soluciones de IA de stack completo adaptadas a cada cliente. Su profundo conocimiento de la industria, los procesos y la ingeniería le permite integrar el contexto único de cada organización en sistemas tecnológicos que amplifican el potencial humano, generan un impacto real en el negocio y mantienen a las grandes empresas globales un paso adelante en un mundo en constante cambio. Para más información, visita www.cognizant.es o síguenos en @cognizant.
Cognizant es un empleador que ofrece igualdad de oportunidades. Tu solicitud y candidatura no serán consideradas en base a raza, color, sexo, religión, credo, orientación sexual, identidad de género, origen nacional, discapacidad, información genética, embarazo, condición de veterano o cualquier otra característica protegida por las leyes federales, estatales o locales.
Advertencia:
La información sobre remuneración es exacta a la fecha de esta publicación. Cognizant se reserva el derecho a modificar esta información en cualquier momento, sujeto a la legislación aplicable.Es posible que los candidatos deban asistir a entrevistas en persona o por videoconferencia e, incluso, que tengan presentar su documento de identidad vigente, durante cada entrevista.