Road Toll Collection System
October 16, 2018
As of 1 January 2018, road toll applies to all heavy vehicles that weigh over 3.5 tonnes and use public roads of Estonia. Krabu Grupp has participated in the development of self-service portals for customers. The portal ordered by the Estonian Road Administration Authority follows the eIDAS framework and enables the cross-border use of e-services by European Union citizens and residents.
Functionality: authentication of ID-card, mobile-ID and bank link users from Estonia, authentication of eID users from EU Member States; authorization of legal and natural persons, user rights management, creation and management of personal account, carrying out the electronic payments and payment refunds, generation and sending of electronic invoices, e-mail and mobile notifications; reporting and statistics, responsive design.
Integrations: Estonian Business Registry, Estonian Tax and Customs Board (EMTA) payment module, Estonian Road Administration Authority (MNT) TEAVIS notifications system, Estonian Road Administration Authority (MNT) Traffic Registry, Information System Authority’s (RIA) TARA authentication module.
Technologies used: Java, Java Server Faces (JSF), PostgreSQL, PKI, X-Road, LiquiBase, Apache HTTP Server, HTML, CSS, JavaScript, Spring, XML, JSON, Git
Latest Projects
Tallinna Linnatransport – Renewal of the Intranet and Public Website
August 19, 2025
Challenge
Tallinna Linnatransport (TLT) needed a complete overhaul of both its intranet and public website. The new solution had to be user-friendly, secure, accessible, and meet the needs of diverse target groups – from citizens to employees and business partners.
Solution
Krabu Grupp carried out a comprehensive renewal project which included:
• creating a new design framework in line with TLT’s brand guidelines;
• developing a user-centered Mega Menu and personalized homepage views for different user groups;
• adding modern features such as ID-card, Mobile-ID and Smart-ID login, dark mode, and dynamic submenus;
• ensuring mobile-friendly responsive design and multilingual support (Estonian, English, Russian);
• implementing accessibility improvements in line with international standards;
• optimizing site performance (lazy loading, CSS/JS minification, caching, server-side rendering) and strengthening security with a multi-layered protection system.
Result
The renewed website provides TLT with:
• significantly improved user experience across all devices,
• smooth and fast navigation through the Mega Menu and personalized views,
• secure and reliable access to internal information,
• better visibility in search engines thanks to technical optimization.
With the new solution, TLT can offer employees, customers, and partners a clear, trustworthy, and convenient digital channel that supports daily operations and strategic goals.
Moodle Platform Customization
April 29, 2025
Challenge
A rapidly-growing private-sector company needed a simple, auditable way to prove that every employee had read and acknowledged mandatory internal documents.
Solution
Krabu Grupp extended the customer’s Moodle learning environment with a custom Document Sign-Off plugin. Once an employee finishes reading, they set the status to Done; the system instantly stores the user, timestamp and document version and feeds the data into a real-time compliance report.
What is Moodle?
Moodle is an open-source Learning Management System (LMS) used in more than 200 countries to build e-learning courses, manage content and track learner progress.
Impact
• 100 % visibility of employee acknowledgements
• Sign-off cycle shortened from days to minutes
• Automatic audit trail exports for HR and compliance teams