Legacy modernization that respects production reality.
NLTC helps financial institutions move COBOL/C systems from legacy ecosystems to modern Linux platforms— without breaking what already works. We focus on stability, performance, and predictable delivery.
Services
Practical help for teams running large, regulated, always-on systems.
Legacy modernization
Plan and execute migrations with a bias toward compatibility and operational safety.
Integration & middleware
Stabilize online and batch flows across schedulers, TP monitors, queues, and databases.
Performance & reliability
Resolve memory leaks, runtime errors, and throughput bottlenecks with minimal and safe fixes.
Technical expertise
We work where the risk is highest: runtimes, file handlers, and transaction boundaries.
Core platforms
COBOL and C modernization on Linux, including strict compatibility requirements (record/file semantics, batch behavior, and operational monitoring).
Online & batch workloads
Hands-on delivery across TP monitor services and batch orchestration, with visibility into logs and runtime metrics.
Our approach
Small, auditable steps that keep production safe.
1) Reproduce & measure
Build a minimal repro, capture evidence, baseline performance, and define acceptance criteria.
2) Fix with minimal change
Prefer configuration, targeted patches, and safe wrappers over rewrites.
3) Validate end-to-end
Regression checks across batch, online, messaging, and data files—then promote with confidence.
Case study
A real-world example of a conservative modernization program.
Large-scale legacy application modernization (financial services)
Migrated a mission-critical legacy application from OpenVMS to Linux, including compiler/runtime conversion, online transaction processing modernization, batch scheduling replacement, messaging migration, and database alignment. The program emphasized minimal risk, careful compatibility, and operational continuity.
Contact
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