Enterprise Grade Ext JS

Engineering Services



Sr. Architects
& Project Managers


Critical Application


Component Developed

Our Capabilites

Celestial product engineering team provides a wide variety of ExtJS services to help deliver web applications faster with better user experience and reduced risk. As an ISO 27001 certified organization, Celestial Systems, is a Trusted Partner we can guarantee that we have deployed the best data protection standards across digital, paper-based and cloud data.

Ext JS For Enterprise Application

UI/UX Consulting

We help develop strategies for improving your applications UX or navigating a particular scenario that may be challenging for your team

Application Development / Modernization / Optimization

Case Study : Metron Aviation

Managed Service and Technical Support

Webinar : Customized Test Automation for Ext JS

Advisory Services

Code Review

Helps identify potential problem areas in your code and provide a roadmap to increase stability, maintainability, performance, and the overall long-term quality of the code.

Architecture Review

Helps save money by reducing technical debt and improving performance and security.

UX/UI Reviews

Help develop strategies for improving your applications UX or navigating a particular scenario that may be challenging for your team.

Migration Review

Helps with your mobile app migration by streamlining development process, reduce risk, and ensure a smooth transition to the latest platform features.

Plugins and Integrations Consulting

We help engineering leaders identify the right plugins, integrations, or third-party services for applications.

CI/CD Review

Optimizing CI/CD DevOps pipeline to save time, resources, and money.

Working Sessions

Ask us anything. Our Strategic Advisory team can help you resolve any problem related to your project. We can help you speed up development, improve app quality, and reduce project risk.

Custom Training

Help teams move forward with Ext JS adoption including the foundational knowledge needed to approach hybrid mobile app development.

Migration Service

Our services involve the migration of your Ext JS applications, revitalizing and modernizing your outdated legacy systems. Through this process, we enhance the scalability and maintenance of your application while enabling faster updates. With our assistance, you can smoothly migrate your Ext JS application to the framework of your preference, following a well-planned procedure.

We offer comprehensive solutions for transitioning your Ext JS application to new technologies. This begins with evaluating your existing software applications and concludes with assessing any new requirements that may arise. Our team of skilled engineers and consultants is fully equipped to handle all aspects of your technology migration needs.

How do we ensure success?

We lead the technological field thanks to our in-house Sencha certified training professionals and their extensive understanding of the Sencha architecture and tools.

With the accessibility of human resources and professional advice on demand for all your Sencha requirements.

Effective teams and well-defined engagement processes that provide successful delivery and a high level of customer satisfaction.

Engagement FAQ’s

We provide a range of flexible engagement models to suit your specific needs and objectives.

With our end-to-end product engineering services, we create and deliver a mission critical enterprise web & mobile application(s) tailored to your requirements.  

Through our Managed Services offering, we assess, plan, create, and host all enhancement (features or infrastructure), quality (Test Automation, Security/Vulnerability), Maintenance (Updates and Upgrades) and Monitor existing Ext JS application(s) to meet your development, deployment, and long-term maintenance needs, ensuring seamless operations and continuous improvement.  

Our team specializes in a wide range of solutions, including.  Web/Mobile Frontend Design, Architecture, Development​, Backend Design, Architecture, Development​, Comprehensive Testing and Quality Assurance (QA)​, Test Automation, DevOps, Cloud, security, and Compliance.

Advisory addresses every milestone of the application-development life cycle. While most app-development leaders focus only on the initial build, we believe it’s important to assess your project from planning all the way to deployment and beyond. If you can spot a technical deficiency that might occur after deployment, you can address it earlier, cutting costs and saving time. We offer flexible Payment Plans to engage our “Advisory Service”

Migrating your application from Ext JS, a licensed framework, to an open-source platform offers several advantages. Firstly, it reduces ongoing costs, allowing you to allocate resources more efficiently. Additionally, this migration enables your business to grow and expand by upgrading its systems, resulting in improved data security for your legacy system. It also enhances data acquisition, data analytics, and scalability of analytical reports. Modern systems are known to be more productive and effective, providing a boost to overall performance. Switching to an open-source platform is more affordable compared to Ext JS, and migration simplifies the integration of the newest IT technologies with your existing systems. Moreover, the migration process helps in developing stable, dependable, and trustworthy solutions. By constantly updating your systems to reflect the latest developments, the risk of becoming outdated is significantly reduced.


We offer the option to onboard experts in areas such as Ext JS Framework Architect, QA/Test Automation, Security/Compliance, Cloud, and TechOps (Microservices/Docker/Kubernetes). They seamlessly integrate within your team, filling specific skill gaps for short-term or long-term engagements. 

Reach out to us today to discuss your requirements and explore the best engagement model for your business. We’re here to guide you through the process and help you unlock the full potential of Ext JS Applications. 

Work with Ext Js Experts

Hire a dedicated team or let us build your product from scratch

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