Powerful banking app augmented by blockchain identity authentication technology

Blockchain management solutionBlockchain management solution


Transform the digital identity verification process to mitigate ID theft risks and enhance user experience.


Strengthen the existing banking app with the blockchain-based digital identity management module.

Tech stack

Java, React, AWS.


Our client is a well-established player in the finance and banking sector of Western Europe. Having integrated fintech solutions into their business to stay ahead of the curve and deliver unparalleled customer experience, our partner decided to sharpen the company’s competitive edge by focusing on fostering the digital identity security of tens of thousands of its clients.

Blockchain fintech application


Among various digital identity solutions for fintech, the client opted for the development of a blockchain identity management system and its integration into the existing banking application. Such a transformative app augmentation required technological precision and extensive expertise in implementing blockchain solutions. Among the key objectives of the project our partner singled out the following:

  • Elimination of identity theft risks
  • Reduction of user identity verification time
  • Significant enhancement of customer experience rates
  • Clear and navigable DID in-app module
  • Full KYC regulations compliance

Modsen fintech specialists had a proven track record of using blockchain technology for digital identity verification which allowed them to take on the challenge, clearly understanding all the possible roadblocks of the development process and having a clear-cut plan for their overcoming.

Roadblocks overcoming



Developer Engineers


Business Analyst


QA tester


Project Manager

Blockchain software developers

Development process

Requirements gathering and processing

The initial phase of blockchain identity management services delivery was centered around gathering and documenting client requirements through extensive research, market analysis, and stakeholder consultations during which our team identified primary concerns and paramount expectations we were to translate into reality. All the information derived in the course of research and consultations was processed and submitted to the client in the form of a comprehensive document which formed the basis for further project execution.


During the planning phase, the project scope, timeline, and resource allocation were determined. The team pinpointed the necessary technologies, tools, and frameworks required for developing the decentralized identity management solution for a fintech services provider. The peculiarity of projects built by Modsen team lies in impeccable timing which often surpasses our clients’ expectations and hastens their products’ market entry. The key to such precision is our devotion to Agile methodologies starting from the planning phase, which allows us to properly map out the development process and keep up the pace for months to deliver software solutions that reshape businesses’ outlooks.

Team assembly

The success of the digital identity blockchain project fully relied on the selection of professionals whose relevant experience in building blockchain-based solutions could ensure a smooth and polished execution of the software development process. Hence, the choice of project specialists was a crucial task that required the input of both the company CTO and the client oneself, as Modsen CTO enjoyed the bigger picture of skills and capacities each expert possessed, while the client had to be able to verify the project team members’ competencies directly. As a result of their close cooperation a skilled team was assembled, consisting of blockchain developers, cybersecurity experts, UX/UI designers, project managers, and domain experts from the banking industry.


During the design phase of the blockchain-based digital identity management solution for banking, the development team focused on creating a user-friendly interface and a secure architecture, putting emphasis on ensuring data privacy, immutability, and secure access control through blockchain technology. This phase involved several key steps to ensure a comprehensive and robust design:

1. User Flows:

The team began by creating user flows, which mapped out the various steps and interactions involved in the identity management process. This included activities such as user registration, identity verification, document submission, and access control. User flows helped identify potential pain points and areas for improvement in the UX.

2. Wireframes:

Wireframes were developed to outline the visual structure and layout of the solution's user interface. These low-fidelity representations allowed the team to focus on the placement of key elements, such as input fields, buttons, and navigation menus. Wireframes helped in visualizing the flow of information and interactions between different screens.

3. Database Structure:

Modsen Design Studio team designed the database structure to securely store and manage user identity information and related data. The database scheme was carefully crafted to ensure efficient storage and retrieval of data while adhering to privacy and security standards. Considerations were made to enable seamless integration with blockchain technology and other banking systems.

4. Security Architecture:

Given the sensitive nature of user identity data in banking, a robust security architecture was designed to protect against unauthorized access and data breaches. Our team implemented encryption techniques, access control mechanisms, and multi-factor authentication to safeguard user information. The integration of blockchain technology provided an additional layer of security through decentralization and immutability.

5. UI/UX Design:

The UI/UX design played a crucial role in ensuring a seamless and intuitive user interaction. Modsen professionals focused on creating visually appealing and user-friendly interfaces that simplified the identity management process. Attention was given to the placement of elements, color schemes, typography, and overall aesthetics to enhance the user experience.

6. Compliance with Regulations:

The blockchain-based KYC solution was designed to capture and validate necessary user information, including government-issued identification documents and proof of address. The team incorporated features to perform real-time checks against external databases and regulatory watchlists.

7. Prototyping and Feedback:

To validate the design decisions, prototypes were created and shared with the stakeholders, including end-users and banking domain experts. Feedback was gathered and iteratively incorporated into the design to ensure that the final design aligned with user needs, business goals, and regulatory requirements. By following a meticulous design process, the team successfully created a user-centric, secure, and compliant blockchain-based digital identity management solution for banking.


During the coding phase, the development team translated the design specifications into actual code. This step involved writing and implementing the necessary software components and functionalities to bring the software solution to life. The coding stage was divided into several key activities:

1. Smart Contract Development:

Modsen developers created smart contracts to manage the identity verification process. These contracts contained the logic for identity validation, data storage, and access control.

2. Integration with Existing Systems:

To enable seamless integration with the existing banking infrastructure, the project team developed application programming interfaces that allowed the blockchain digital identity solution to communicate and exchange data with core banking systems, customer relationship management platforms, and other relevant systems.

3. Frontend Development:

Modsen developer engineers created the frontend components of the solution, including the user interface (UI) and user experience (UX) elements. Attention was given to responsive design principles, accessibility, and usability to enhance the overall user experience.

4. Data Encryption and Security Measures:

To protect sensitive user data, Industry-standard encryption techniques were employed, and secure coding practices were followed to mitigate security risks and vulnerabilities.

5. Error Handling and Logging:

We integrated error-handling mechanisms and comprehensive logging functionalities into the code. This enabled the solution to capture and report errors, exceptions, and system events. Detailed logs helped in troubleshooting and debugging, improving the overall stability and reliability of the system. By diligently coding the solution, the project team transformed the design into a fully functional and secure system. The in-depth expertise and attention to detail enabled us to develop a reliable and efficient blockchain-based digital identity management solution for financial services.

Comprehensive testing

Throughout the coding phase, our engineers conducted regular code reviews to ensure adherence to coding standards, best practices, and design specifications. During the testing stage, quality assurance processes were followed to identify and address any code-related issues, bugs, or performance bottlenecks. This iterative review process helped maintain code quality and consistency to ensure the solution's reliability, security, and compliance with regulatory standards.


After successful testing, the solution was integrated with the existing banking infrastructure. APIs were developed to allow seamless integration with various banking systems, such as customer relationship management, the core client’s banking system, and transaction monitoring systems. Concurrent with the coding process, Modsen team created comprehensive documentation to provide insights into the codebase, system architecture, and APIs. This documentation served as a reference for future maintenance, troubleshooting, and potential enhancements.


Once the fintech identity protection solution was deployed, the project team’s specialists were instructed to provide ongoing support and maintenance to the developed software. Regular updates, bug fixes, and security patches were released over time to ensure the app's stability, scalability, and compatibility with evolving banking regulations.


Blockchain solution interface

The development of a blockchain-based identity solution for banking required a systematic approach, starting from requirements gathering and planning to coding and servicing. The integration of blockchain technology provided enhanced security, simplified fintech identity verification, and improved compliance with regulatory standards. The software enabled our partner to provide a seamless and trustworthy banking experience to their customers while reducing fraud and enhancing data privacy. Having monitored the effect of fundamental changes implemented within the bank’s infrastructure for 6 months, our partner outlined the following benefits:

  • Enhanced security and protection against unauthorized access, tampering, and fraud.
  • Streamlined identity verification processes and improved customer experience.
  • Full compliance with regulatory requirements, such as KYC and AML.
  • Improved data privacy and control for customers, reducing reliance on centralized databases.
  • Enhanced credibility for the bank, fostering customer loyalty.

Translated into figures, blockchain-based identity management integration has driven the undermentioned results:


of positive user feedback on the use of DID within the banking app


new clients within 3 months


months project payback period

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