Chat on WhatsApp
Service · Legacy App Modernization

Transform outdated systems into fast, secure & maintainable applications.

We modernize legacy applications — from old desktop tools and monolithic web apps to fragile back-office systems — so they become faster, safer and easier to evolve. Backed by 10+ years in software delivery across healthcare, operations and enterprise systems.

Old tech → modern stack Performance & stability upgrades Security & data protection

We’re a good fit when...

  • Your current system is slow, unstable or hard to change.
  • Only a few people understand the old codebase.
  • You want to expose features or data via modern APIs.
  • You need to keep operations running during migration.
10+
years upgrading legacy apps
Zero
planned downtime migrations
High
focus on maintainability
Overview Process & Delivery Tech Stack & Platforms Engagement Models

Overview

Legacy App Modernization at Mega Infomatix is not just “rewriting code”. We align UX, architecture, databases and deployment so your system becomes easier to use, easier to maintain and safer to scale.

Performance & reliability

We address slow screens, timeouts, frequent errors and bottlenecks so users feel the difference in everyday work — not just in technical diagrams.

Faster responses More stable behaviour

Security & risk reduction

Old stacks often hide unpatched libraries and weak access control. We harden your system with modern practices around auth, logging and data handling.

Safer data flows Audit-friendly design

Architecture for the next 5–10 years

We move from “big ball of mud” codebases to cleaner modular design, making future changes less risky and more predictable.

Modular components API-first thinking

Process & Delivery

We follow a low-risk, stepwise modernization process — keeping your existing system running while the new structure is designed, built and validated.

Audit & discovery

  • Review current codebase, DB, infrastructure and integrations.
  • Identify critical flows, pain points and hidden dependencies.
  • Capture missing knowledge from key team members.

Modernization strategy

  • Decide between refactor, partial rebuild or full rebuild.
  • Plan modules, sequencing and migration strategy.
  • Define measurable technical & business outcomes.

Implementation & migration

  • Rebuild or refactor modules into cleaner architecture.
  • Introduce APIs, validations, logging and tests.
  • Run data migrations in controlled, reversible steps.

Stabilisation & handover

  • Parallel runs until new system is stable.
  • Performance tuning and final UX refinements.
  • Knowledge transfer, documentation and training.

Typical scenarios we handle

  • Legacy desktop app → modern web or hybrid solution.
  • Monolithic app → modular/service-based backend.
  • Old database schemas → cleaner, well-indexed models.
  • Hard-coded logic → configurable rules & workflows.

How we reduce risk

  • Incremental releases instead of “big bang” changes.
  • Backups & rollback strategies for key steps.
  • Visibility into progress, risks and decisions.

Tech Stack & Platforms

We modernize towards stable, well-supported stacks that are easy to hire for and integrate with other systems.

Front-end modernization

Clean, responsive interfaces that feel modern without overwhelming existing users.

HTML5 / CSS3 Bootstrap-based layouts Modern JavaScript UX tuned for daily use

Backend & APIs

Backends reorganised into clearer layers and services, with predictable APIs.

PHP frameworks Node.js (where suitable) REST APIs / JSON Integration hooks

Data & storage

Databases restructured for performance, clarity and reporting.

MySQL / MariaDB / PostgreSQL Normalised schemas BI / analytics-ready Access control & logs

Integrations & ecosystem

We connect modernized systems with CRMs, dashboards, messaging platforms and other tools you already use.

  • APIs for web/mobile apps and partner systems.
  • Integration with reporting / BI platforms.
  • Support for staged rollouts across sites or teams.

Engagement Models

Modernization projects have different levels of clarity and urgency. We can match the engagement model to where you are today.

Fixed-scope rebuild

Best when your workflows are clear and you want a planned, structured rebuild.

  • Detailed scope & acceptance criteria.
  • Agreed timelines and milestones.
  • Predictable budget.

Phase-wise modernization

Upgrade module-by-module while your current system continues to run.

  • Prioritised modernization roadmap.
  • Parallel runs during critical phases.
  • Reduced disruption to operations.

Long-term product partner

We act as your extended engineering team for core systems over years.

  • Joint roadmap planning.
  • Continuous improvements and new features.
  • Support for new teams, sites or countries.

Audit & pilot first

Start with a focused audit or pilot modernization before committing to full overhaul.

  • Short technical & UX assessment.
  • Prototype / pilot around a critical module.
  • Evidence-based decision for full program.

Need to modernize a critical legacy system?

Share a short note about your current app, stack, users and pain points. We’ll propose realistic modernization options, timelines and how our 10+ years of experience can support you.

Share a legacy app brief Talk to our team
Comfortable with complex, long-running systems — even with limited documentation.
What usually happens next:
  • Step 1: We review your description and any artefacts you share.
  • Step 2: Short discovery call with your tech / ops / leadership team.
  • Step 3: We propose 1–2 modernization paths with trade-offs and timelines.