Transform Outdated Systems into Faster, Smarter Business Operations

Legacy Application Modernization Services in Europe

Transform Outdated Systems into Faster, Smarter Business Operations

As a trusted legacy application modernization company in Europe, we at MTechZilla help startups and enterprises upgrade performance, re-architect core systems, migrate to the cloud, and modernize UI/UX, without disrupting your daily workflows. Our team of engineers works on revitalizing your legacy code, enhancing your technology stack, and integrating modern tools and frameworks so your business stays ahead of evolving needs.

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We work with latest technologies

React
AWS
PostgreSQL
Grok
Gemini
OpenAI
Claude
Figma
Vercel
Next.js
React
AWS
PostgreSQL
Grok
Gemini
OpenAI
Claude
Figma
Vercel
Next.js

We Deliver Trust

We're a Team of Engineers Trusted by Startups and Businesses

30+

Projects Delivered

3%

Top Talent

5+

Years Experience

98%

Repeated Clients

Outperform Your Competitors

Our Legacy Application Modernization Services in Europe for Businesses

We keep things simple and transparent. Our team evaluates each system and explains clearly whether it needs re-coding, renewing, replacing, retiring, re-platforming, re-engineering, or re-architecting. You get full clarity on what will change and why, so you can make confident decisions. The aim is to cut unnecessary costs, free up resources, and turn outdated systems into reliable, future-ready applications.

Cloud Migration

We migrate your applications and data to secure cloud platforms like AWS and Azure with zero data loss and minimal downtime. Our team handles assessment, planning, and deployment, while keeping you informed at every step. The result is a smooth transition that boosts flexibility, scalability, and long-term cost efficiency.

Microservices Architecture

We break down your monolithic system into smaller, independent services that are easier to manage and scale. Our experts design, restructure, and guide you through how each service works and fits into your business. This approach improves performance, simplifies updates, and enables faster innovation without disrupting operations.

UI UX Redesign

We transform outdated interfaces into clean, modern, and user-friendly designs. Our process covers research, wireframing, and redesign to ensure better usability and faster task completion. The outcome is a fresh interface that increases engagement, reduces user frustration, and makes your applications more enjoyable to use.

API Integration

We securely connect your legacy systems with modern platforms through well-designed APIs. This improves system communication, enables new features, and integrates smoothly with tools your business depends on. We handle design, implementation, and testing to ensure reliable, long-term performance.

Security Audit and Enhancement

Legacy systems often carry hidden security risks. We conduct thorough audits to identify vulnerabilities and apply the latest security measures. You'll see exactly what risks were found, how they're addressed, and how your data stays protected and compliant with European regulations including GDPR.

AI Integration

Adding AI to legacy applications can automate tasks, deliver smarter insights, and improve user experience. We integrate AI into your existing workflows, customize it to your business needs, and show you the value it brings. Our team ensures AI enhances your operations without disrupting current systems.

Years of Excellence

Why MTechZilla is the Right Legacy Modernization Services Partner in Europe

We work in short sprints, each with clear goals and results. You'll always know what's happening and feel confident about the progress.

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Choose what suits you best: hourly rates for flexibility, fixed pricing for clarity, or a dedicated team that works alongside you.

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Our solutions align technology upgrades with your core business priorities. You get results without overspending on unnecessary features.

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You'll always have visibility into progress, and after delivery we stay with you for ongoing support, updates, and future scaling.

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Our Successful Legacy Application Modernization Portfolio

Project: Full-Stack EV Charging Platform for Swiss Startup

We partnered with Sintio, a Swiss EV charging company, to modernize and build their entire technology stack. We delivered a CPO management portal, public charging web app, native mobile apps, and marketing website. The platform integrates 20+ charger brands via OCPP protocol and now manages over 5000 charging stations across Switzerland.

5000+

Chargers onboarded

1M+

Charging sessions/month

20+

Charger brands integrated

8 weeks

MVP delivery

View Case Study
Project: Full-Stack EV Charging Platform for Swiss Startup

Step-by-Step Execution

Here's Our Approach to Legacy Application Modernization in Europe

Understand Your Existing System

We begin with an initial call to review your current system, identify what's outdated, note daily challenges, and document everything together.

Strategy and Planning

Next, we create a clear plan. It includes timelines, the technologies we'll use, and how we'll proceed step by step without disrupting your operations.

Design and Develop Solutions

Once the plan is approved, we start designing and developing the solution, making sure it aligns with your goals. Regular check-ins keep you updated.

Upgrade with the Right Tech Stack

Here, we modernize the system using the right technologies and solutions while keeping the core functionality that your business depends on.

Testing and Quality Checks

Before anything goes live, we run multiple tests and share demos with you. This ensures everything works smoothly, and meets expectations.

Launch and Ongoing Support

When everything is ready, we launch the updated system with you. After launch, we provide support, updates, maintenance, and scaling.

Industries Section Background

Industries we work in

Industries We Work With for Legacy App Modernization Services in Europe

Over the years, we've partnered with startups across Europe. We work with clients in specific industries we specialize in. Consistent support from our team has built long-term relationships with our clients and a strong portfolio because we ensure systems work exactly the way your teams and customers need.

Travel & Hospitality

We upgrade your booking, check-in, guest services, and loyalty systems. The goal is to give travelers a smoother, more connected digital journey.

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Electric Vehicles

We modernize your charging station management, fleet tracking, and IoT integrations so your EV infrastructure runs reliably and grows with demand.

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Real Estate

From property databases to client handling, we modernize your tools so searches are faster, workflows smoother, and experiences easier for both agents and clients.

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Renewable Energy

Your energy management systems are upgraded with real-time analytics, automated controls, and billing tools, helping you stay future-ready.

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Education

We rebuild old systems into platforms with live classes, quizzes, progress tracking, and interactive features—designed for today's learning needs.

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Insurance

Your policy management, claims processing, and customer tools get restructured into faster, more efficient workflows that simplify daily operations.

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What Our Clients Say About Their Experience and Partnership With Us

John Moats

They migrated our legacy application to new serverless infrastructure and deployment process. It has allowed us to rapidly improve our application development and delivery time.

John Moats

CTO of ReloShare

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Philipp Bruhin

We have known MTechZilla for many years, and their technical expertise in modern web development, especially with cloud-based Node.js services. Sharvin and the MTechZilla team consistently deliver high-quality.

Philipp Bruhin

Head of Software Development at Sintio AG

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Maysam Hafezparast

Fast response, trustworthy, clean code, advanced knowledge and fair pricing are some of the best features. It's over a year that our company is outsourcing some of our development projects with MTechZilla and we are very satisfied.

Maysam Hafezparast

Co-Founder of KplayTeam

Matt Singley

They are super responsive, fast, and just a great organization. I highly recommend them for projects, scaling your own development teams, or as your entire team. Thank you Sharvin and team!

Matt Singley

CEO of Pinnacle Furnished Suites

Frequently Asked Questions

What is Legacy Application Modernization?

Legacy Application Modernization is about upgrading your old systems so they work faster, safer, and more efficiently. It usually involves moving your applications and data to the cloud, rebuilding slow parts into faster microservices, updating the interface so it's modern and user-friendly, and adding secure APIs so everything connects seamlessly. By modernizing, you get a system that's easier to maintain, more secure, cost-effective, and ready to scale with your business, all without disrupting your day-to-day operations.

Why should your business consider Legacy Application Modernization?

If outdated software is slowing you down, modernization is the solution. It helps cut downtime, reduce high maintenance costs, and lets you release new features quickly. It also improves security and compliance, while giving your team and investors confidence that your technology can scale with your business goals.

How long does a Legacy Application Modernization project usually take?

The timeframe depends on your system's size and complexity. Some projects can be completed in weeks, while larger transformations may take a few months. We follow a sprint-based approach, so you see progress at every stage with clear updates on what's done and what's coming next. Throughout the process, we stay connected with you using communication channels like Slack and Google Meet, and we manage the work transparently through Jira sprints. Whenever you need to review reports, ask questions, or assign tasks, our team is always active and available to respond quickly.

Will Legacy Application Modernization affect your day-to-day operations?

We make sure your daily work isn't disturbed while upgrades happen. We migrate it carefully using proven tools and backups at every step. Most updates are carried out in parallel environments or during off-hours. Using strategies like feature flags and staged releases, we keep the process smooth so your team and customers hardly notice the transition.

What technologies are used in Legacy Application Modernization Services in Europe?

We work with leading technologies like AWS, Azure, and GCP for cloud platforms, modern UI/UX frameworks for better usability, microservices for flexibility, and secure APIs for integration. Depending on your business, we also use AI, containers, and automation tools to make systems more efficient and scalable.

Is modernization only for big enterprises or does it make sense for small businesses too?

It absolutely makes sense for small and mid-sized businesses. In fact, startups and growing companies benefit the most because they avoid scaling pains early. Modernization makes your systems flexible, so you don't face major roadblocks later.