React Migration Services
React Migration helps solve extensibility, performance, and compatibility issues in legacy solutions, and simplifies maintenance as your business and requirements grow over time. With SysGears’ expertise, the process is transparent and efficient, delivering quality without uprooting your established business workflows.
About Us
SysGears is a web and mobile software development company with international experience and a record of 350+ corporate customers. Our rich JavaScript tech stack includes React.js: a powerful library that enables high-performance, dynamic re-rendering of components with state management hooks and virtual DOM. Frontend migration to React represents significant improvements to legacy solutions and a competitive alternative to other modern tech stacks.
As a React migration company, we bring:
- 15+ years of software development experience;
- 110+ seasoned experts on the team;
- Experience working in distributed teams;
- Flexible collaboration models.
Common Scenarios that Call for React Migration
Your Legacy Tech Stack is Accumulating Technical Debt
The nature of technological progress is such that perfectly fine solutions will, eventually, require updates or become outdated. An obsolete tech stack may present performance issues, security risks, accessibility gaps, or even fail to run on modern hardware entirely. React is a modern, actively maintained, and widely supported JavaScript library, and the transition to it becomes a modernization strategy that can improve the solution’s long-term viability.
Examples: JSP to React migration, AngularJS to React migration.
You Are Scaling Up Your Frontend And Need A Better Toolkit
A simple and lean frontend has its merits, especially at early stages of the project: it reduces development costs, lowers implementation risks, and simplifies compatibility. However, as your solution evolves, it may need to be rebuilt to allow complex new features or integrations. React.js is a library that comes with powerful tools like the virtual DOM right out of the box, supports declarative programming, and offers a wealth of publicly available knowledge and resources. It is also actively maintained and used by Meta and a number of independent developers, reflecting its stability and relevance in today’s web development landscape.
Example: vanilla JavaScript to React migration.
You Need the Flexibility of Unopinionated Programming
Opinionated frameworks define strict, established coding conventions and architectural patterns, which can limit implementation choices in some use cases. Although predefined practices can improve consistency across teams, they may be restrictive when a project requires architectural choices outside the framework’s preferred approach. React allows you to solve one problem using a variety of different approaches, which can significantly simplify development and long-term maintenance for small, well-coordinated in-house teams that can efficiently make decisions together.
Examples: Angular to React migration.
Migration Pain Points and How We Solve Them
Application Downtime
A common fear when migrating a solution to a new tech stack is that it might become unavailable, and business operations shut down with it. This doesn’t need to be the case, especially when the migration is done by expert developers such as SysGears engineers. We work on the new solution while you continue using your existing system, and migrate once development is complete. This way, your end users experience minimal disruption, and reliable rollback options we put in place allow us to quickly revert any defective components to their functional versions, if necessary.
Complex Architecture and Dependencies
Legacy app migration to React may run into difficult-to-work-with architecture and a complex web of dependencies that make the solution work, in some cases with no accompanying documentation that could help untangle it. We conduct a thorough audit of your codebase to understand exactly how it operates and how different modules, services, and features interact with each other, which ones require significant refactoring, which can be kept with minimal changes, and what the practical steps are for React migration.
UI Component Consistency
It is important for both a successful migration and the long-term health of the application that the frontend is rebuilt in a consistent and organized manner. We achieve this through careful analysis of your existing code, the establishment of a centralized component library, and thorough quality control throughout the project. If your solution needs a redesign to better align with today’s user experience needs, we can quickly onboard an expert SysGears UI/UX designer as well.
Data Integrity
Another valid concern in migration projects is data loss, as failure to preserve and transfer user information, business-related documents, and transaction history could have severe consequences. While this is a backend issue, it is not uncommon to migrate both front- and backend systems to modern technologies, and as full-stack engineers, we would be happy to fulfill these needs. In such projects, we ensure effective data backup and recovery methods are in place, minimizing risks of data loss.
Why Choose SysGears as Your React Migration Company?
Proven Technical Excellence
Having served over 350 corporate customers on a variety of development projects, we have the technical expertise to handle complex migration cases. Our understanding of best migration practices in combination with tried-and-true development workflows helps us consistently deliver quality results to our clients.
Flexible Cooperation Models
As React migration is a development project, there are multiple approaches we can take to our partnership. You can outsource migration to us, in which case we will handle both project management and implementation on our end. Alternatively, onboard a dedicated team of experts, or augment your in-house staff with SysGears software engineers. Whichever option you select, you gain exceptional expertise in React and general web development.
Minimal Downtime or Disruption
We ensure efficient development throughout the migration project that does not interfere with regular business operations, as the new solution replaces the old in the live environment when it’s complete. This allows you and your customers to continue the day-to-day business as usual, while we work largely in the background to help ensure the longevity of your application.
Long-Term Cooperation
As a company, we strive to build long-lasting partnerships with our clients. We continue to remain available once the migration is complete to support any necessary adjustments based on user feedback, expand the solution’s functionality, or further refine the application as your business needs evolve.
Ready to transition to a modern, dynamic, high-performance frontend?
Customer Success Story
AI-Powered Virtual Lab for Biotech R&D
We provided development and modernization services to a startup building a cloud-based web platform that simulates real-world experiments in biotech research, working as an extension of the client’s in-house team. The solution’s original tech stack forced a full page reload on every interaction, drastically slowing workflows, and limited the ability to implement new, complex user flows. This is why one of the core modernization tasks was the migration to a React-powered frontend: it made the platform easier to extend and maintain long-term, as well as made it more responsive in the hands of end-users thanks to its fast, dynamic re-rendering of select components.
Other key project outcomes include:
- 10x faster page load times thanks to a transition from a file-based storage system to a relational database;
- Improved extensibility, horizontal scalability, and performance thanks to migration to FastAPI for the backend;
- New, centralized authentication service across all client products, streamlining access without compromising security;
- Backend unified for both users and administrators, reducing maintenance effort.
Customer Testimonials
5.0
“SysGears put in an effort to make sure our project was completed with high quality, were very responsive throughout development, and the results satisfied our scientists and engineers.”
Christopher Shelner
COO, PersistAI Formulations Corp
5.0
“Their level of engagement, long-term mindset, and solid technical expertise make them a really reliable partner.”
Anastasiia Chala
CMO, Stormotion
5.0
“The team is responsive, communicative, diligent, and delivers on time. Their adaptability to the project’s needs is impressive.”
Adam Watt
CEO & Founder, Active Link Software
Our React Migration Process
While the exact steps to each individual migration project will vary due to unique architectures, feature scopes, and business requirements, here is the general structure we follow:
In-Depth Assessment of Your Current Application
Before we begin, we conduct a thorough audit of your web application in order to understand its codebase, map out its architecture and dependencies, and identify vital integrations. This assessment informs all future steps of the migration process.
Modernization Strategy and Roadmap Creation
Next, based on the findings of the discovery audit, we focus on project planning: timeline, deliverables, software specifications, and necessary skill sets. We create a step-by-step roadmap to organize and structure the project and set expectations for each stage.
Migration Implementation
Our engineers refactor the front-end to React, focusing first on the modules and components that require it most and whose migration offers the greatest value-to-effort ratio. We also create a React component library so that elements can be reused and kept consistent both through development and during future application maintenance.
Continuous QA and Testing
Before any component or module goes live, it is thoroughly tested for security, performance, accessibility, and other relevant criteria to ensure smooth migration and minimize defects that could affect your business operations.
Deployment and Long-Term Support
When they are ready, we replace the existing frontend with its new React counterparts with near-zero disruption to the system and monitor its performance in the hands of real users. If any issues arise, we roll back to the original version if it was functional, identify the defects, and eliminate them. Afterward, we continue to remain available should you need assistance with ongoing application maintenance or expansion.
FAQ
What is React migration, and does my application actually need it?
React migration is the process of switching an existing application’s frontend stack (typically JSP, AngularJS, or other technologies) to React.js, an open-source JavaScript library maintained by Meta and a community of independent developers.
The most common scenario where migration is considered necessary is when a legacy tech stack starts presenting issues: security vulnerabilities, incompatibility with modern hardware or browsers, unsatisfactory performance, or inability to implement required new features or integrations due to legacy framework limitations.
Our experts can assess your solution and help you clearly identify whether migration is the right next step for your application.
AngularJS is end-of-life; should I migrate to React now or wait?
We suggest migrating; it reached end-of-life on January 1, 2022, and Google no longer provides security patches, browser compatibility updates, or official support of any kind. The developers of AngularJS recommend migrating as well, listing Angular as a potential path forward; at SysGears, we offer another one – React.
Who on our side needs to be involved during the migration?
It depends on the collaboration model we choose for the project. With migration outsourcing, minimal, high-level contacts for a continuous feedback loop are sufficient: founder, tech lead, and developer.
Depending on the project, a project manager and a QA engineer can be engaged, or these roles can be filled by SysGears experts. In outstaffing partnerships, our engineers work as part of your team, following your management structures, feedback pathways, and delivery workflows.
How do you protect data integrity and prevent downtime during migration?
Our engineers implement secure data backup and recovery options and follow a near-zero disruption migration approach – the old solution is maintained and remains in use as the new React frontend is being developed. This minimizes overall system downtime and allows users to continue interacting with the system during development without being locked out of features while we work on improving them.
Outside of direct implementation processes, the NDAs we sign with customers also clearly outline the data protection measures to be taken throughout the project, and we follow them to the letter in addition to our own safety policy that covers both physical and digital security.
How do you make sure existing features don’t break after migrating?
With careful code review to understand how the existing features operate, component decoupling during implementation, and thorough testing at every stage of the development process. With SysGears, no feature, module, or component goes live without validation and full confidence that it will perform as expected, and in the unlikely event that a flaw does make it through, it is identified, isolated, and remedied quickly.
What drives the price of React migration?
The primary migration cost driver is project complexity: the existing frontend architecture and UI flows that need to be rebuilt, as well as any integrations and dependencies.
At SysGears, we use a Time-and-Materials (T&M) pricing model, where you pay only for the time that our experts put in towards successfully migrating your solution to its new React stack. The rates of our developers vary with their seniority, which is important to note, as more complex projects typically require more experienced specialists.
How do I start the migration project?
Contact us using the form, WhatsApp, live chat on our web page, or e-mail – info@sysgears.com. We will discuss your business and technical needs, decide on a collaboration model that works best for your situation, sign the appropriate documentation (including NDAs), and get to work.
Boost your business with custom software
Tell us about your business needs and we’ll suggest a solution
Thank you!
We have received your request and will get back to you within 1 business day.
