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Ph. +1 646 757 9020
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Ph. +1 646 757 9020

Software Engineering

Custom software development

Combining tech expertise and industry-specific knowledge, Gainfy develops diverse custom solutions for small, medium-sized and enterprise-grade businesses.

Custom application development

Gainfy builds custom solutions from scratch, ensuring seamless integration with existing environments and systems. We extend this offering to startup products and large-scale business process automation alike.

Third‑party product customization

With tried‑and‑true knowledge of tech platforms and components, both open‑source and proprietary, we create custom solutions that address our customers’ unique demands.

Legacy application migration and upgrade

We offer redesign, refactoring, migration to newer platforms, and architecture review for outdated and lagging legacy systems in need of an overhaul.

Technology we work with

As a custom software development company, Gainfy makes use of an extensive set of programming languages, frameworks, libraries, and tools for projects of any scale and complexity. We also run in-house R&D labs where we collaborate on emerging technologies to inject innovation into our real-life projects.

— C++
— Java
— Python
— Rail

— iOS
— Android
— Windows
— JS

Working hours
were spent

R&D and emerging technologies

Machine learning

We work with data mining, computer vision, robotic process automation, and natural language processing, to help drive business-critical decisions and bring new efficiencies.


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Internet of things

Proficient in enterprise, industrial and consumer IoT, Gainfy provides application development, backend engineering, as well as IoT extension services to harness the power of connected devices.


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Leveraging both technologies and hardware, we create industry-specific interactive solutions with immersive experiences beyond 2D augmentation.


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Our blockchain offering spans custom decentralized solutions, integration of blockchain-based modules into existing software, consulting and technology support, as well as development of digital platforms.


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Artificial Intelligence

Gainfy is using artificial intelligence (AI) and machine learning (ML) to identify inefficiencies and drive them out of administrative processes in the healthcare system and, as a result, help reduce costs and improve outcomes for payers, providers, and patients.


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Custom software development roadmap

Gainfy develops software products from the ground up as well as takes up development at any software lifecycle stage.

Requirements gathering
We assign business analysts with the required domain knowledge to elicit, analyze, validate, and document all functional and nonfunctional requirements, data flows and UI components, product vision, and project scope.

Project planning
We deliver specifications, wireframes, and prototypes to get early feedback and test the solutions in progress. Our architects analyze possible product use cases and deployment scenarios to spot technically infeasible or expensive features and propose the best-suited technology stack.

Product design
Our UXD team builds navigation and usage routes for users through conceptual modeling and interaction scenario design. We test early concepts and gather feedback on user paths to optimize engagement and improve performance.

Custom app development
Gainfy develops custom web, desktop, and mobile solutions, both native and platform-agnostic.taking scalability, robustness, and customizability into account. Our services include application migration, testing, integration, and deployment, all with scalability and robustness as priorities.

Maintenance and support
We offer 3 levels of support for applications developed by Itransition or by any third-party vendor. Itransition solves challenges of any complexity: application upgrades and functional improvements, performance monitoring and security audit.OS and server migration, workarounds and hotfixes.

Why cooperate with Gainfy

Our custom software development services are recognized by both startups and industry leaders, who’ve turned to us to transform their ideas into innovative solutions.

3.2x faster time to market

Gainfy visualized the state of the customer’s ecommerce platform, redesigned the architecture, and updated the technology stack, which resulted in 3.2x shorter time to market.

5x performance acceleration

For one of the leading European digital agencies, Gainfy reorganized internal workflow automation and revamped their core platform to accelerate its performance by 5 times.

8% up conversion

Gainfy helped the largest footwear reseller in the UK to enhance and configure their environment architecture, increasing customer conversion by 8% as a result.

Let’s collaborate

Send us an email,
to discuss a new project.

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