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Agencei

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Modernize a solution: redesign, migration, version upgrade or replacement

An application that works but becomes expensive to maintain, a framework version no longer supported, a website impossible to evolve: modernizing is often more cost-effective than starting over, provided it is done methodically.

Agencei assesses the existing system, proposes a realistic path (progressive redesign, targeted rewrite, version upgrade, migration) and executes it while keeping service and data continuity.

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How we work

  1. 1

    Audit of the existing system

    Code, dependencies, database, infrastructure, technical debt and risks. Deliverable: assessment and options estimated in effort.

  2. 2

    Modernization path

    Choice between version upgrade, incremental redesign (strangler pattern), partial rewrite or replacement, with a data migration plan.

  3. 3

    Execution in batches

    Each batch is delivered, tested and released independently to limit risk and make value visible quickly.

  4. 4

    Cut-over and stabilization

    Final migration, redirects, reinforced monitoring and a stabilization period with fast fixes.

Related services

Application redesign

Progressive modernization of ageing applications, with no business interruption or data loss.

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Technical Audit

Independent review of code, architecture and infrastructure, with a prioritised report.

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Website Migration

We move your website (host, domain, HTTPS, CMS) with no downtime and no lost Google rankings.

See this service

Data migration

Migration between databases, engines, versions or systems, with ETL, validation and zero-downtime cutover.

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Custom software

Business software designed around your processes when off-the-shelf solutions fall short.

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Frequently asked questions

Do we have to rewrite everything?

Rarely. An incremental redesign replaces critical parts one by one while keeping the rest in service.

How do you guarantee data is preserved?

With migration scripts tested on copies, consistency checks and a planned cut-over with a rollback option.

How long does a modernization take?

From a few weeks for a version upgrade to several months for a complete redesign; the audit narrows this down.

Is the SEO of a redesigned website preserved?

Yes, if redirects, canonical URLs and content are handled from the design stage, which we systematically include.

Tell us about your project

Describe your need in a few lines: we come back to you with a first analysis and the next steps.

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