Senior Mainframe Architect

Principal-level Technical Lead to own and drive the entire mainframe-to-AWS replatform delivery using Rocket Software Enterprise Server. This person will lead the technical strategy across all workstreams — COBOL compilation, DB2 migration, shared services (MQ, Control-M, CDC, CFT), DevOps pipelines, security (LDAP/RACF migration), and infrastructure.

Required technical skills

• Rocket software Enterprise Server (Microfocus) Administrator. (strong — ES, EA, ED)

• COBOL replatform / mainframe modernization

• Experience with DB2 (z/OS and LUW), data migration, Precisely CDC

• AWS proficient resource with (AWS solution Architect associate certification at least)

• IBM MQ or Amazon MQ, job scheduling (Control-M)

• Security: RACF-to-LDAP migration, KMS, Security Hub

• Architecture leadership across multi-partner programs

Key Responsibilities

• Install and configure:

Rocket Enterprise Server (MFES)

Enterprise Developer runtime

• Setup:

Regions (CICS / batch regions)

File handlers (VSAM emulation)

• Manage AWS Components

EC2 (Compute instances for MFES)

EBS / FSx (Storage for files)

S3 (Batch input/output files)

VPC / Subnets (networking)

• Lead technical strategy across all migration workstreams

• Own architecture decisions and ADR documentation

• Ensure Rocket ES stability, COBOL pipeline, and DevOps

• Oversee DB2 migration, shared services, and security

• Present at workshops and SteerCo on technical progress