Our IT consultancy service entails the evaluation of the present application, infrastructure, and data model prior to the migration process. This produces a written report containing the outcome, risk factors, and phased migration approach.
We assist in migrating the existing web, desktop, and mobile applications to new systems, platforms, and technology stacks. During our work, we move the application’s codebase, update dependencies, and migrate with the preservation of the business logic.
We help migrate the existing applications and infrastructure to cloud computing environments such as Amazon Web Services (AWS), Microsoft Azure, or Google Cloud, either from an on-premise solution or from a different cloud.
We split the existing monolithic application into independently deployable services while maintaining the production system operational.
We transition old mainframes to modern and cloud-native architectures, encompassing application code transition, batch workload transition, and mainframe database transition.
We transition our customers’ legacy databases between different platforms, releases, and infrastructures, such as engine transitions (homogeneous and heterogeneous), on-premises to cloud, and mainframe databases transitioning from VSAM and IMS.
We modernize legacy applications through rebuilding the architecture, module replacement, integration of third-party APIs, development of new features, and application containerization.
We refactor legacy applications to meet the best development practices, optimize performance, upgrade outdated dependencies, introduce design patterns, remove duplicated code, and address vulnerabilities in the legacy code.
We replace the existing integration layer with the latest integration layer, consisting of REST, gRPC, or messaging through modern message brokers like Apache Kafka, RabbitMQ, AWS SQS, Azure Service Bus, and Google Pub/Sub.
We monitor systems after go-live, resolve performance issues, upgrade dependencies, and provide production database administration (DBA) support.
We move the application to another environment without changing the code base of the application.
Best for: applications that need to be migrated quickly from the legacy platform until their thorough modernization.
We make a few modifications to the application in such a way that it can migrate to a cloud platform or other advanced platform.
Best for: applications that only need an upgrade of the infrastructure and operations, not the code itself.
We make changes in the application codebase to address code debt concerns and update dependencies in the codebase without changing the application’s purpose.
Best for: legacy systems that are well-architected but poorly coded.
We redesign the system’s architecture either through monolith decoupling, updating of communication flows, or moving towards event-driven architectures.
Best for: cases where the current architecture cannot allow scaling and optimization of the system.
We create a completely new system based on a new technology stack while preserving all of the business logic.
Best for: cases where there is no way to migrate the current system into a new architecture and technology stack, or if other options are more expensive.
We archive applications and their components, which do not add any value to the business, along with disconnecting integrations and documenting the compliance process.
Best for: legacy systems discovered during audit and capable of replacement by some modern solutions.
We outline our migration strategy, target architecture, migration plan, and time estimation. The migration plan is then discussed, revised, and signed off on.
Migration occurs in phases. Deliverables for each phase are created and validated. Throughout the process, the production system will continue to run normally.
At each phase of the migration process, we conduct tests to ensure that the functionality of the new system matches the legacy one.
The actual transition is performed according to the cutover plan, which includes the period when the legacy system runs in parallel with the production system. Finally, the legacy system is decommissioned.
We monitor and fine-tune the migrated system to ensure a smooth system and all the modules’ operation.
Chudovo provides migration services for various legacy systems. Below is the list of the most frequently encountered systems; however, should your system not be included in the list, our audit process will help us decide what needs to be done.
The impact of migration on development, operation, and infrastructure proves benefits for companies. Once organizations migrate away from legacy systems, they get the capacity to develop, scale, and connect to modern services without any additional efforts. This table demonstrates what organizations can achieve with migration in the most important aspects.
| With No Migration | After Migration |
| Rollouts depend on system-wide deployment, which adds to risk and delays | The individual pieces scale separately according to their own timelines |
| Fixed costs of infrastructure regardless of the workload | Solutions scale with usage, and costs correlate with use |
| Custom middleware integration is required for each interface | Applications communicate using RESTful or event-driven API documentation |
| Audits involve manually extracting data from legacy storage systems | Automated auditing occurs, and compliance reports can be created at will |
| Performance problems impact the whole application | Individual applications scale or are optimized without disrupting the entire architecture |
| Hiring developers for legacy technology takes time and money | Developers collaborate on living technology stacks |
| Outdated components are vulnerable and unpatchable | Dependencies are managed, and security updates are regularly applied |
Legacy migration is a cost that will bring returns in many forms in terms of infrastructure, development, and operations. The numbers listed below are based on our standard practices within our projects for legacy migration projects. The exact benefits will vary from case to case depending on various factors.
| Area | Typical Improvement |
| Infrastructure and licensing cost reduction | 20–60% |
| Reduction in time to deploy new features | 30–50% |
| Developer time freed from maintenance and bug fixing | 25–40% |
| Reduction in unplanned downtime | 30–70% |
| Reduction in compliance audit preparation time | 20–40% |
| Reduction in onboarding time for new engineers | 30–50% |
Industry: Healthcare
Chudovo developers supported and updated a legacy set of medical applications for use within correctional facilities and rewrote EHR management software, medication workflow, and clinic processes. It was done as a series of projects of rewrites of legacy application frameworks to the current versions, refactors of modules, and setup of CI/CD pipelines.
Industry: FinTech
Chudovo professionals performed a version update of the existing legacy monolithic lending platform, configured cloud infrastructure, refactored the data layer, and created CI/CD. Chudovo developers decomposed the existing legacy application into microservices for independent scalability.
Industry: Video Security
The client had a legacy video management application that could be used only for desktop computers. Chudovo developers redesigned the legacy application as a microservices-based one accessible from a browser and capable of performing video analysis on multiple camera inputs.
Industry: Manufacturing
In this project, Chudovo provided assistance with the assessment of the migration of the legacy ERP system of a leading engineering firm in Germany that works in oil & gas, renewable energy, and water transport industries. This audit included the assessment of the current IT environment, overcoming barriers to implementation, addressing migration challenges, and reviewing the project schedule.
Industry: Retail and E-Commerce
Chudovo conducted a comprehensive migration of a major e-commerce platform operated by a US-based provider of barcode, mobile computing, and RFID products from a legacy version of the software to the most recent version.
We perform a comprehensive technical analysis of the software application architecture, state of the source code, database architecture, integrations, infrastructure configuration, and compliance posture. If there are no documents about the system under review, we create them based on the code and infrastructure configuration.
We provide a comprehensive report including findings, detected risks, proposed migration strategy, and migration delivery plan. The audit report serves as the basis for the project scope, timelines, and budget estimates. None of the above is agreed upon prior to the completion of the audit.
The audit is offered as a stand-alone service for companies seeking to evaluate possible migration strategies or perform an independent audit of the legacy system.
01. Contact us
Write to us with a description of your requirements for migration and expected time frames.
02. Discovery call
This call allows us to go through the scope and technical aspects of the project and find out whether it requires an audit first.
03. Proposal
After a thorough review, we prepare a proposal that includes the scope of work and costs.
04. Kick off
We put the team together, and the project commences usually within one week after proposal acceptance.
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