Rehost · Replatform · Refactor · Rebuild

Modernize Legacy Without Disruption

Rehost, replatform, refactor, or rebuild — we evolve your outdated systems incrementally or transform boldly, balancing risk, cost, and speed without breaking business operations.

Zero DowntimePhased cutover Data PreservedDual-write + verify Cloud-NativeKubernetes · Serverless
mainframe://prod

USER01: CUST QUERY?

> SELECT * FROM CUST;

EXEC CICS: RETURN;

LIFT & SHIFT
cloud.customerhub.com

Cloud Native

Strategies & Tools for a Modern Enterprise

Strangler Fig Spring Boot Kubernetes AWS DMS React / Angular PostgreSQL Strangler Fig Spring Boot Kubernetes AWS DMS React / Angular PostgreSQL
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On-Time Delivery
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What We Do

Our Modernisation Services

From assessment to execution — proven services that reduce technical debt and unlock cloud-native capability.

Portfolio Assessment

Automated code analysis, dependency mapping, business criticality scoring, and TCO modeling to prioritize modernization.

Mainframe Modernisation

COBOL/PL-I to Java/C#, CICS/IMS to Spring Boot, VSAM to PostgreSQL, and JCL to Kubernetes jobs.

Monolith Decomposition

Strangler-fig, domain-driven design, bounded contexts, data separation, and CDC for real-time sync.

Database Modernisation

Oracle/DB2/SQL Server to PostgreSQL (Citus), Aurora, or Cloud Spanner — with schema conversion and data validation.

UI/UX Modernisation

Green-screen to React/Angular, PowerBuilder to Blazor, and Access/Excel workflows to modern web apps.

Integration Layer

API facades, event backbones (Kafka), service mesh, and async patterns for gradual, safe cutover.

Modernisation Strategies

Gartner's 6 Rs + 1

The right strategy depends on business value, risk, and your appetite for change.

Rehost

Lift & shift to cloud VMs or containers — fastest, lowest risk.

Fast & Safe

Replatform

Optimize for cloud — managed DB, caching, autoscaling — without architecture changes.

Balanced

Refactor

Restructure and decouple code for cloud-native agility gains.

Agility

Rearchitect

Redesign for microservices, event-driven, and serverless — maximum cloud value.

Maximum Value

Rebuild

Rewrite from scratch on a modern stack — clean slate, higher cost.

Clean Slate
How We Work

A Risk-Controlled Modernisation Path

Assessment → strategy → execution → operations — with data fidelity and business continuity at every step.

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Assess

Code analysis, dependency mapping, TCO modeling, and business-criticality scoring.

Week 1–3
02

Strategize

Pick the right 6-R strategy, build the roadmap, and define governance and funding.

Week 3–5
03

Execute

Incremental delivery, parallel run, automated reconciliation, and zero-downtime cutover.

Phased
04

Operate & Optimize

Monitoring, training, knowledge transfer, and continuous improvement post-cutover.

Ongoing
Why TPROSYS IT

Modernisation Without Gambling Your Business

Rare mainframe expertise, proprietary accelerators, and outcome-based pricing — we deliver transformation that protects your operations.

  • Risk-free phased delivery
  • Zero data loss
  • Mainframe expertise
  • Cloud-native outcomes
  • Proprietary accelerators
  • Outcome-based pricing

Phased & Safe

Strangler-fig extraction, feature flags, and parallel run — value every sprint, not a big-bang.

Data Preserved

Automated reconciliation and dual-write with comparison keep every record intact.

Team Enabled

Training, pair programming, documentation, and knowledge transfer to your internal teams.

Technology

The Modernisation Stack

Analysis, migration, modernization, and testing tools proven across projects.

Analysis

CAST Highlight SonarQube Structure101 AST Analyzers

Migration

AWS / Azure Migrate Google Migrate Cloudamize / Turbonomic

Modernisation

PHP / Laravel Spring Boot / Quarkus .NET 8 / Blazor React / Angular Node.js / Go

Data & Testing

MySQL AWS DMS / Debezium Striim / Attunity Parasoft / Tricentis Pact Contract Tests
FAQ

Frequently Asked Questions

Quick answers about strategy, risk, data, timelines, and training.

It depends on business value, risk, and appetite for change. We start with portfolio assessment and TCO modeling, then map you to the right mix of the 6 Rs — from low-risk rehosting to full rebuild.
Yes. We have rare hands-on expertise in COBOL, JCL, CICS, IMS, DB2, VSAM, and REXX — migrating mainframe workloads to Java/.NET on Kubernetes with data moved to PostgreSQL or cloud-native stores.
Automated reconciliation, dual-write with comparison, parallel run with shadow traffic, and rollback to legacy — every migration is validated against the source system before cutover, with zero critical data loss across projects.
A straightforward rehost can complete in weeks; complex mainframe or monolith decompositions run in phased sprints over months. We deliver value incrementally — you see working capability before full cutover.
Yes. Training, pair programming, documentation, and knowledge transfer are built into every engagement — so your teams can own and extend the modernized platform confidently.
Let's Talk

Ready to Modernize Your Legacy System?

Tell us about your platform and constraints. Our modernization experts will get back to you within 24 hours with a tailored strategy.

Get a Free Consultation

No obligation — just a clear roadmap for your modernisation.