Custom software development

Be it a startup idea, a domain‑specific application or a large-scale corporate system, Itransition builds custom software from scratch ensuring seamless integration with the existing environment.

Third-party solution customization

Tried-and-true experience in versatile platforms and components, both open‑source and proprietary, allow us to create custom solutions, thus covering customers’ unique demands.

Legacy application migration & upgrade

Should you have an outdated or a temperamental system, we offer redesign and refactoring services, migration to newer platforms and technical architecture review.

How custom app development works for our customers

We help startups transform their ideas into innovative solutions, while our custom software development services work for industry leaders, and well-known market players.

4 000+ business activities

Aimed to automate key business processes for almost 40 Toyota and Lexus car dealerships, Itransition delivered a multi-tier ERP system automating 4.000+ business activities.

15 000+company employees

Thanks to corporate learning portal developed by Itransition, PayPal was able to organize an effective training process and management for 15.000+ of its employees.

10 000+ registered users

Itransition helped Evo Inc. create an innovative baby monitor by developing mobile and web solutions that counted 10.000 registered users within several months after the official release.

15 000+company partners

For Xerox Itransition developed a partner web portal automating key business processes that helped fine-tune and coordinate the work done by 15.000 of multinational company partners.

Key tech expertise

In custom application development, Itransition leverages an extended set of programming languages, frameworks, libraries and tools to build projects of any scale and complexity.


At the very beginning we discover the project scope and goals, conduct requirements elicitation, analysis and validation to deliver complete documentation and prepare a project plan. Prior to project kickoff we also offer technology consulting to implement the most suited technology stack and well-thought out system architecture.


With full-stack custom software development expertise, and industry-specific knowledge, Itransition develops, customizes, and migrates software solutions for specific business needs and domains.


To guarantee stable work and relevancy lasting after solution deployment, we deliver maintenance and support services. They include 3 levels of support for applications developed by Itransition or by any third-party vendor, application upgrade and improvements, performance monitoring and security audit, OS and server migration.