Application Development Services
World-Class Apps That Truly Improve Business Efficiency and Customer Experience
In IT since 1989, ScienceSoft offers end-to-end delivery of secure, reliable and efficient applications for businesses in 30+ industries, including business case creation, architecture and UX/UI design, development, QA, support and evolution.
Application development services help design, implement, integrate, test, and manage B2B, B2C, and corporate apps. ScienceSoft is ready to deliver an MVP in just 1–4 months. No compromises on service quality: it’s our technical proficiency, mature processes and feasible automation that contribute to the project’s speed. So, you can be sure your app gets a user satisfaction score of not less than 90%.
Why ScienceSoft?
- Skilled and dedicated IT consultants, UX and UI designers.
- A full-scale PMO in charge of large and complex projects.
- 450+ developers; 50% of whom are Seniors/Leads.
- Integrated Manual and Automated Testing (IMAAT) approach for QA cost optimization.
- Strategic partnerships with AWS and Microsoft.
- A quality-first approach based on a mature ISO 9001-certified quality management system.
- ISO 27001-certified security management based on field-tested security knowledge, ever-green policies, effective processes, advanced security technology, and skilled professionals.
Recognized for service excellence
The Financial Times Includes ScienceSoft USA Corporation in the List of the Americas’ Fastest-Growing Companies 2023
For the second year in a row, ScienceSoft USA Corporation ranks among 500 American companies with the highest revenue growth. This achievement is the result of our unfailing commitment to provide high-quality IT services and create best-value solutions that meet and even exceed our clients’ expectations.

Quick Links
Here are the types of apps we build and relevant success stories.
Mobile Applications

Design and Development of the Viber Messenger with 1B+ Users
- Available in 193 countries around the globe.
- Over 70M interactions happen per hour.
- Users spend 35+ minutes daily on the platform.
Web Apps for Internal Use

BI Solution Development for Alta Resources
- In 10 months, we implemented fully functioning modules for basic financial analytics and automated customer invoicing.
- Saved up to 90% of the report preparation time for Alta Resources’ analysts.
- Secured streamlined evolution of the new BI solution via its flexible architecture.
Go for internal web app development
Customer-Facing Web Apps

Customer Portal Development for Secure-DeFi
- In less than 4 months, we implemented a convenient and stylish customer portal.
- Streamlined portal adoption and drove a high user retention rate via convenient UX and visually appealing UI.
- Top-notch security: multi-factor user authentication, data encryption, role-based access control, and other cybersecurity mechanisms to protect the portal.
At ScienceSoft, we are for reasonable IT investments only. First, we check whether our clients already have the required functionality in their enterprise systems. If they do, re-using a part of legacy enterprise systems is often more efficient and less risky than developing and implementing new software modules and integrating them seamlessly. In this case, we reverse engineer legacy systems, refactor the code, add new interfaces if needed.
App planning
We elicit business needs and concerns, draw up functional and technical requirements for a new software solution. We can also help with idea productization and brand design.
Business case creation
We estimate the expected TCO and ROI of the application, explore ways to optimize the app development and maintenance costs.
Project planning
We prepare a detailed development and management roadmap with a release plan, a prioritized feature list, deliverables at each stage, and more.
App architecture design
We describe app architecture, tech stack, compliance strategy, design development and production infrastructures.
App UX/UI design
We conduct UX research and create wireframes and dynamic prototypes. After that, we conduct user testing and prepare full-color graphic interface mockups.
App development
We set up CI/CD pipelines, build the server side, the client side and APIs. We conduct regular code reviews and run all kinds of required tests in parallel with development.
App QA & testing
We plan and conduct functional (including integration and regression), exploratory, performance, usability, compatibility, security tests. We set up test automation, if needed.
App support and evolution
We manage app performance and security, provide L1–L3 support, help optimize TCO. We plan and add new integration and features, including advanced capabilities (e.g., AI, AR/VR, video streaming).
App migration
We recode/re-architect the app (if needed), plan and perform migration to the cloud, test the migrated apps and the infrastructure, provide support and maintenance.
Tiered architecture
Apps have the presentation, application, and data tiers to enable concurrent, quick development, enhanced security, and dependency-free scalability.
Reactive architecture
Message-driven apps with lightning-quick responsiveness to user interactions and stable availability regardless of network and load conditions.
Microservices architecture
Apps are split into units based on business functions to facilitate continuous deployment, ensure high performance, and automate load management.
Cloud-native architecture
Loosely coupled microservices simplify portability, provide the highest availability, and help leverage automated performance scaling and PaaS services.
Our In-House Skills & Knowledge
Front-end programming languages
Languages
Practice
21 years
Projects
2,200+
Workforce
50+
ScienceSoft uses JavaScript’s versatile ecosystem of frameworks to create dynamic and interactive user experience in web and mobile apps.
JavaScript frameworks
Practice
13 years
Workforce
100+
ScienceSoft leverages code reusability Angular is notable for to create large-scale apps. We chose Angular for a banking app with 3M+ users.
Workforce
80+
ScienceSoft achieves 20–50% faster React development and 50–90% fewer front-end performance issues due to smart implementation of reusable components and strict adherence to coding best practices.
By using a lightweight Vue framework, ScienceSoft creates high-performant apps with real-time rendering.
Back-end programming languages
Practice
19 years
Projects
200+
Workforce
60+
Our .NET developers can build sustainable and high-performing apps up to 2x faster due to outstanding .NET proficiency and high productivity.
Practice
25 years
Projects
110+
Workforce
40+
ScienceSoft's Java developers build secure, resilient and efficient cloud-native and cloud-only software of any complexity and successfully modernize legacy software solutions.
Practice
10 years
Projects
50+
Workforce
30
ScienceSoft's Python developers and data scientists excel at building general-purpose Python apps, big data and IoT platforms, AI and ML-based apps, and BI solutions.
Practice
10 years
Workforce
100
ScienceSoft delivers cloud-native, real-time web and mobile apps, web servers, and custom APIs ~1.5–2x faster than other software developers.
Practice
16 years
Projects
170
Workforce
55
ScienceSoft's PHP developers helped to build Viber. Their recent projects: an IoT fleet management solution used by 2,000+ corporate clients and an award-winning remote patient monitoring solution.
Practice
4 years
ScienceSoft's developers use Go to build robust cloud-native, microservices-based applications that leverage advanced techs — IoT, big data, AI, ML, blockchain.
Mobile
Practice
16 years
Projects
150+
Workforce
50+
ScienceSoft’s achieves 20–50% cost reduction for iOS projects due to excellent self-management and Agile skills of the team. The quality is never compromised — our iOS apps are highly rated.
Practice
14 years
Projects
200+
Workforce
50+
There are award-winning Android apps in ScienceSoft’s portfolio. Among the most prominent projects is the 5-year-long development of Viber, a messaging and VoIP app for 1.8B users.
Practice
11 years
Projects
85+
Workforce
10+
ScienceSoft cuts the cost of mobile projects twice by building functional and user-friendly cross-platform apps with Xamarin.
ScienceSoft uses Cordova to create cross-platform apps and avoid high project costs that may come with native mobile development.
ScienceSoft takes the best from native mobile and web apps and creates the ultimate user experience in PWA.
Practice
8 years
Projects
300+
ScienceSoft reduces up to 50% of project costs and time by creating cross-platform apps that run smoothly on web, Android and iOS.
Desktop
Practice
34 years
Workforce
40
ScienceSoft's C++ developers created the desktop version of Viber and an award-winning imaging application for a global leader in image processing.
Practice
4 years
Workforce
40
We used Qt to deliver a cross-platform desktop app for a global leader in image processing, a desktop version of Viber, VoIP messenger with over 1 billion users, and an anti-procrastination app acknowledged by The Daily Telegraph and BBC.
Practice
19 years
Projects
200+
Workforce
60
Our C# developers created the world’s largest PLM software. Their recent projects: development of SaaS for vCIO services management and underwriting software for a global aviation insurer.
Practice
15 years
Workforce
~40
We have delivered WPF-based solutions for a leading market research company and a global leader in image processing.
Practice
10 years
Workforce
30
We use Python for rapid development of cross-platform desktop apps.
Databases / data storages
SQL
Our Microsoft SQL Server-based projects include a BI solution for 200 healthcare centers, the world’s largest PLM software, and an automated underwriting system for the global commercial insurance carrier.
We’ve implemented MySQL for Viber, an instant messenger with 1B+ users, and an award-winning remote patient monitoring software.
Azure SQL Database is great for handling large volumes of data and varying database traffic: it easily scales up and down without any downtime or disruption to the applications. It also offers automatic backups and point-in-time recoveries to protect databases from accidental corruption or deletion.
NoSQL
Our Apache Cassandra consultants helped a leading Internet of Vehicles company enhance their big data solution that analyzes IoT data from 600,000 vehicles.
ScienceSoft has helped one of the top market research companies migrate its big data solution for advertising channel analysis to Apache Hive. Together with other improvements, this led tо 100x faster data processing.
We use HBase if your database should scale to billions of rows and millions of columns while maintaining constant write and read performance.
Cloud databases, warehouses and storage
AWS
We use Amazon Redshift to build cost-effective data warehouses that easily handle complex queries and large amounts of data.
We use Amazon DynamoDB as a NoSQL database service for solutions that require low latency, high scalability and always available data.
Azure
We leverage Azure Cosmos DB to implement a multi-model, globally distributed, elastic NoSQL database on the cloud. Our team used Cosmos DB in a connected car solution for one of the world’s technology leaders.
Azure SQL Database is great for handling large volumes of data and varying database traffic: it easily scales up and down without any downtime or disruption to the applications. It also offers automatic backups and point-in-time recoveries to protect databases from accidental corruption or deletion.
Big data
By request of a leading market research company, we have built a Hadoop-based big data solution for monitoring and analyzing advertising channels in 10+ countries.
A large US-based jewelry manufacturer and retailer relies on ETL pipelines built by ScienceSoft’s Spark developers.
Our Apache Cassandra consultants helped a leading Internet of Vehicles company enhance their big data solution that analyzes IoT data from 600,000 vehicles.
We use Kafka for handling big data streams. In our IoT pet tracking solution, Kafka processes 30,000+ events per second from 1 million devices.
ScienceSoft has helped one of the top market research companies migrate its big data solution for advertising channel analysis to Apache Hive. Together with other improvements, this led tо 100x faster data processing.
We leverage Apache ZooKeeper to coordinate services in large-scale distributed systems and avoid server crashes, performance and partitioning issues.
We use HBase if your database should scale to billions of rows and millions of columns while maintaining constant write and read performance.
We leverage Azure Cosmos DB to implement a multi-model, globally distributed, elastic NoSQL database on the cloud. Our team used Cosmos DB in a connected car solution for one of the world’s technology leaders.
We use Amazon Redshift to build cost-effective data warehouses that easily handle complex queries and large amounts of data.
We use Amazon DynamoDB as a NoSQL database service for solutions that require low latency, high scalability and always available data.
How We Use Advanced Techs in App Development
We can go beyond widely adopted techs, if your solution requires it. Click on the innovative tech you are interested in to learn more about our relevant competencies.
Benefits of Our App Development Services
Nimble business analysis
With experience in over 30 industries, our BA department translates your business needs into spot-on app requirements and suggests cost optimization options.
Performance-driven development
Our developers design easily maintainable architectures, write documented & clean code, perform seamless integration and evolve your app to make it even more robust.
All-around testing
Relying on a quality management system backed by ISO 9001, our QA experts perform functional, performance, security, usability, and other types of testing to ensure frictionless app operation.
What You Need to Know about Our Agile Development Process
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We generally need 3–5 weeks to establish an efficient CI/CD process (for a mid-sized project with several microservices, an API layer and a front end). |
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Our developers deliver code in 2- or 3-week iterations. Safe minor releases happen continuously via automated CI/CD pipelines. |
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We advocate for the balanced combination of automated and manual testing to achieve maximum software quality while supporting frequent releases and staying cost-effective. |
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We often do trial implementations for a limited number of users to minimize possible downtimes in production and ensure high user satisfaction. Trial stages usually take up to 1–3 months. |
All Application Services
Services
Database Software
Web Development
Application Integration
Maintenance and Support
Mobile Development
Web Design
Application Migration