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Application Modernization and Re-engineering Services

Reimagine your legacy systems with technological innovation that boosts performance, agility, scalability and UX.

We Will Help You

Improve app maintainability

We’ll help you implement a SaaS delivery model that makes application changes simpler, incorporates the benefits of the Cloud and facilitates easier maintenance – reducing costs compared with on-site and dedicated hosting.

Ensure operational resilience & agility

We’ll help you create digital ecosystems that are operationally resilient, so you can quickly adapt your business models and processes to fit the market and, thus, grow your business. Through comprehensive business analysis, our team will design a cost-effective technology solution that supports your business needs.

Pre-empt performance and scalability issues

We’ll help you solve performance and scalability issues and take strategic steps to prevent them from ever recurring, with re-engineering services that update your existing architecture and/or technology stack.

Become more scalable and flexible

Our cloud migration services improve the scalability, security and flexibility of your current software solutions, so you can adapt to the ever-changing modern business environment – unhindered by the technical constraints of old legacy systems.

Speed up delivery

A dedicated team of software experts can help you meet challenging deadlines more cost-effectively, compared with in-house development. We have decades of experience and a tried-and-tested delivery framework that guarantees consistency and minimises bottlenecks.

Collaborate more effectively

Today’s businesses are geographically diverse. Plexteq application re-engineering service helps you maintain a workflow with your colleagues, partners and stakeholders all over the world, in real time.

Tall Buildings

Your business needs legacy system modernization?

Our Legacy Application Modernization Services Suite

The cost of using outdated technologies may be hidden in operational delays, excessive work force, non-perfect user experience. Migration to the state-of-the-art technologies is quick and seamless with us. Plexteq ensures smooth moving of customer's products and applications from obsolete non-efficient technologies to new ones.

Technology Migration

Plexteq modernization specialists identify key application requirements and plan for the seamless transition of the legacy app to an efficient and secure framework. We provide Legacy Software Migration and Legacy App Modernization Services for programs written on outdated programming languages to newer and secure languages such as Python, Java, C# or others.

UX Modernization

Plexteq UX Modernization Services provide dynamic, user-centric experiences through effective information architecture, user and device responsive plan, content contextualization, and customization – enabling effective customer engagement. We design, test, optimize, implement, and modernize user experiences for both enterprise software solutions or for your product idea.

Technology Modernization

Our legacy application modernization and legacy system modernization services provide end-to-end porting, modernization, and re-engineering services. Our software modernization experts update earlier versions of Java, PHP, Ruby, JavaScript, .NET, Perl, Python, Objective-C, etc. to the latest versions catering to unique business requirements.


Plexteq IT legacy modernization services enable organizations to win major opportunities through the digitalization of business processes. Our experience in cloud technologies, mobility solutions, data analytics, AI/ML, automation, and digital marketing solutions allows us to seamlessly bridge legacy and new-age technologies, across diverse business functions.

Cloud Migration

Migrating infrastructure to the cloud bridges the gap between business demand and IT capacity. Our cloud migration services help move your IT infra, applications, and processes to a secure platform. With cloud migration we lower infrastructure costs, accelerate time to market, increase responsiveness, improve scalability, and accessibility

Process & Release Modernization

Our legacy application support enables organizations to make a swift shift to efficient technologies. We transform the software development process and release pipeline so that the teams adopt robust software products and match delivery in an accelerated development environment. Our expertise in DevOps and product engineering technologies pivots self-sustained modernization.


We have a time-tested approach for integrations-led legacy system modernization – to centralize and modernize applications, processes, and data warehouses. Our experience in developing, implementing integrations, and deploying integration platform as a service (iPaaS) solutions enables organizations to break data-silos, take data to cloud or web, and automate business processes.

Data Modernization

With a deep experience in legacy application migration to cloud, we enable organizations to establish modern and real-time business data that a digital business requires. Our data experts streamline the complete data pipeline from sourcing, interpretation, and consumption. Flexible options of on-prem and cloud hosting ensure resilient data structures amenable for analytics, AI, and ML modeling.

Infrastructure Modernization

We facilitate organizations to operate from a scalable, flexible, and reliable IT infrastructure – built for remote access and 100% up-time. Our experts have experience in modernization of a spectrum of operating systems, middleware, storage servers, and network devices. With a phased approach and handholding of users throughout the process, we deliver a high performant infrastructure.

How It Works


Legacy application analysis

Project execution

Integration services

Support and maintenance

We analyze your existing systems to find out the best ways to upgrade them without disrupting your business continuity.

Our work is aimed to identify the most attractive opportunities and business values modernization can bring.

Once all requirements are formalized, we proceed to the project execution. All the legacy application modernization solutions and projects are managed similarly as other web, mobile, or custom software projects — by certified project managers.

When the software solution is developed, we integrate it with the rest applications used within your organization. Besides, we offer user training services with clear user guidelines and assistance from our professional consultants.

Apart from legacy modernization services, we are at your disposal for technical support services, such as further maintenance, bug-fixing, troubleshooting, and many more. Our technicians are available for advisory and help with various schedule options.

Have a question?

Speak to an expert.

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Technologies We Use





































Our Philosophy in Application Modernization


  • Well defined service processes with a special focus on planning and delivery control

  • Refined HR processes aimed to safeguard sustainable and uninterrupted service delivery

  • Robust quality control with a range of KPIs to track delivery quality and efficiency


  • Regular and detailed reporting on different management levels (weekly, monthly, etc.)

  • Clear, predictable, and consistent billing accompanied by detailed expenditure reports

  • Extensive use of task & project management systems like Jira, Confluence


  • Focus on delivering business value instead of just performing the tasks assigned

  • Working processes tailored for synergy with customer organization and business ways

  • Constant strive for optimization, better performance, and collaboration efficiency

Let Us Discuss How Our Team Can Contribute To Your Success

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