The oldest systems are often the most important. We keep them running to their service levels while carving out the parts that can safely move to modern platforms — in increments, never as one irreversible leap.
The core everyone is afraid to touch
Core systems accumulate undocumented logic and a shrinking pool of people who understand them. Big-bang replacement is expensive and risky; doing nothing transfers the risk to a retirement date. The workable path is selective, evidence-led modernization.
- Critical knowledge concentrated in a few individuals
- Batch windows constraining the business day
- New channels blocked waiting on core changes
- Rising licence and support costs on legacy platforms
What we do
Mainframe & midrange operations
Managed run of z/OS, IBM i and Unix estates with capacity and performance management.
Selective modernization
Evidence-based decisions on which workloads move, which are re-hosted and which stay.
Integration
APIs and event streams that expose core data to modern applications safely.
Batch optimization
Shorter, more reliable batch cycles and fewer overnight failures.
Hybrid operations
One operating model across mainframe, private cloud and public cloud.
Knowledge capture
Documenting core logic and dependencies before the people who know them leave.
How we engage
- 01
Discover
Automated code and dependency analysis to establish what the core actually does today.
- 02
Stabilize
Take on the run, fix the recurring incidents and get service levels predictable before changing anything structural.
- 03
Expose
APIs and events over the core so new products stop waiting on core release cycles.
- 04
Modernize in slices
Move discrete capabilities out one at a time, each with its own business case and rollback.
Common questions
- Is the goal always to leave the mainframe?
- No. For some transaction profiles it remains the best platform; the goal is a core that is documented, integrated and affordable.
- How do you de-risk modernization?
- Small slices, parallel running and a rollback path for each one, rather than a single cutover event.
- Can you support us during a skills gap?
- Yes. Taking on the run while capturing knowledge is one of the most common reasons clients engage us here.
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