Blitzy
Field CTO – Mainframe Modernization
$250K–$350K
Cambridge, MA · On-site · Full-time · Posted Oct 16, 2026
About the job
Provides technical and customer leadership for mainframe modernization, guiding architecture decisions and helping evolve Blitzy’s platform and reusable capabilities for automated transformation and validation.
What you'll do
- Lead mainframe architecture reviews and modernization planning, preserving business logic, transaction integrity, concurrency, recovery, and operational continuity.
- Partner with engineering and product teams to develop automated platform capabilities, validation approaches, reference architectures, and service offerings.
- Lead technical discovery and customer and partner engagements, communicating modernization strategies to executives and technical teams.
What they ask for
- Deep, hands-on knowledge of IBM Z and z/OS, with depth in several named mainframe technologies.
- Ability to reason about complex mainframe application behavior, data dependencies, transaction integrity, concurrency, recovery, and security.
- Strong understanding of distributed systems, cloud architectures, and enterprise modernization tradeoffs.
- Experience solving difficult technical problems in mission-critical enterprise systems and turning insights into practical modernization plans.
Pay
$250,000-$350,000 USD base salary; bonus and equity also stated, with no amounts specified
Tools
IBM Z, z/OS, CICS, Db2, IMS, JCL, VSAM, Parallel Sysplex
AI focus
Explore AI and autonomous engineering approaches and help develop platform capabilities that automate mainframe modernization and validation.
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