Cris – Angular, React, Node.js

An end-to-end banking technology with a bold focus on security. The team built multiple web and mobile apps that are served by an interconnected back-end system.

Implemented an advanced in-house framework used as the groundwork solution by tens of teams throughout all areas of development within the bank.

• Built robust security layers throughout the banking system
• Created advanced transactional and concurrency services and workers
• Defined reusable architecture and coding principles for microservices
• Created a shared library with plug-and-play web components

A marketing tool that allows crafting and broadcasting cross-platform ad campaigns on all key social media platforms.

Implemented complex API integrations and advanced UX experiences.

• Built integrations with APIs from Meta, Linkedin, Google and other providers
• Built a CMS admin dashboard using Payload CMS.
• Built complex and custom analytics scripts and dashboards
• Implemented dynamic UX/UI behaviours and advanced form features
• Designed and engineered a scalable microservices infrastructure

A wrapper platform over multiple old medical desktop apps that serves as a modern and user-friendly tool but is integrated with the existing old infrastructure that couldn’t be dismissed due to legal restrictions.

Implemented watcher methods that run as background desktop processes to keep the old infrastructure in sync with the actions made on the new platform.

• Implemented various services for interaction with diverse databases such as PostgreSQL, Oracle, Firebird and MS SQL
• Built a customised CMS admin tool using Payload.
• Implemented batch processing techniques to efficiently handle large files
• Automated multiple repetitive UI processes like inputting the user’s data into the old desktop legacy system forms, to ease practitioners' work
• Built a native messaging system to ensure seamless communication and secure data synchronization

A pivotal e-commerce web infrastructure that serves as a bridge between brands and the customers who want to promote their products.

Built an innovative e-shopping experience and integrated diverse back-end systems from essential e-commerce platforms.

• Integrated with Shopify, WooCommerce, Wix and other platforms
• Fully migrated the existing legacy application to the latest technologies
• Designed and implemented a generic payment system
• Built a proxy gate that was caching and serving video content

An in-house solution to enhance Slack’s capabilities and its integration with several web applications from different clients.

Built the Chrome extension architecture and implemented a generic and reusable communication system with diverse web applications.

• Designed and implemented the architecture and structure of the extension
• Configured the integration with the Chrome Extensions platform
• Integrations with diverse APIs from Slack and other third-party services
• Implemented diverse transactional bulk operations

A monitoring infrastructure used to supervise servers and devices from data centers or complex local networks.

Constructed the system's architecture, implemented advanced logging mechanisms and built a Windows desktop tool.

• Created advanced queue management and data processing
• Implemented a geolocation-based load-balancing system
• Implemented an alerting mechanism that notifies users of system failures
• Detailed logging system to facilitate debugging and troubleshooting

An interlinked system that connects any device using a Bluetooth gadget to a complete web infrastructure using satellite-only waves.

Implemented comprehensive map functionalities and configured a messaging system through satellite APIs.

• Built complex map integration with options such as saving routes and tracks
• Implemented communication via satellite APIs for devices connected through Bluetooth
• Integrated gamification systems based on several physical activities
• Built a reliable, secure and instant messaging system utilising satellite APIs