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cloud · devops · legacy systems

Support and modernize legacy systems without stopping the business to rewrite everything.

The safest modernization program usually starts by making the existing system observable, deployable, and testable. Once the risk is visible, you can replace the right pieces instead of betting the operation on a big-bang rewrite.

First, understand the real risk

Before changing frameworks or cloud architecture, we map runtime dependencies, databases, external integrations, deployment steps, scheduled jobs, credentials, failure history, and the parts of the code that carry the most business risk.

This separates urgent reliability work from cosmetic technical debt.

Progressive modernization instead of a big bang

A rewrite can be appropriate, but it should be earned by evidence. More often, the lower-risk path is to isolate boundaries, update runtime and dependencies in stages, add APIs around stable behavior, and move workloads incrementally.

The system keeps serving the business while the architecture improves underneath it.

Operate with signals, not guesswork

Logs, metrics, health checks, traces, error reporting, alerting, deployment history, and resource dashboards make incident response faster and post-incident learning possible.

Observability is also what lets a team modernize safely because regressions become visible instead of anecdotal.

Taking over a system with little or no documentation

We start by making a reproducible local or staging environment, mapping entry points and dependencies, reading production signals, and documenting what is learned as we go.

The first deliverable is often not a feature. It is an operational map that makes the next change safer.

Cloud architecture across AWS, Azure, and Google Cloud

Cloud decisions should follow workload, existing contracts, team skills, security requirements, and cost. Paradox works with AWS, Microsoft Azure, and Google Cloud for application hosting, containers, databases, networking, CI/CD, and observability.

References to cloud platforms describe technical experience and do not imply reseller or partner status.

Incident response and ongoing support

For production systems, the contract can define covered services, severity levels, channels, response expectations, included hours, and escalation rules. That removes ambiguity exactly when the system is under pressure.

The published plans range from on-demand engineering to a critical plan with a 24/7 emergency channel for P1 incidents.

Frequently asked questions

Do we have to rewrite the entire legacy system?

Usually not. We prefer to measure risk and modernize incrementally unless a rewrite has a clear business and technical case.

Can you support Java, PHP, and .NET systems?

Yes. Those are common legacy environments, including systems with older frameworks, SOAP services, scheduled jobs, and undocumented integrations.

Do you work with AWS, Azure, and Google Cloud?

Yes. We can review architecture, deployment, observability, cost, and application operations across all three.

Can you set up CI/CD for an existing application?

Yes. A repeatable build and deployment path is often one of the first modernization steps because it reduces change risk.

What does 24/7 mean in the Critical plan?

It means an emergency escalation channel for critical P1 incidents. It is not unlimited engineering time; included and additional hours follow the plan terms.