Vitold Radkevich

Gatling Enterprise is an internal platform for performance and load testing of Allegro services. The platform provides scalable execution of simulation scenarios, manages system capacity for multiple teams, and validates critical business workflows, including mobile purchase flows and data center failover scenarios.
The solution also includes backend services responsible for preparing and delivering test data used by Gatling feeders, enabling realistic and repeatable load tests across different environments.

This project is a chaos engineering platform used to simulate failures across Allegro's production and staging environments. The system enables controlled experiments on clusters, services, and databases to assess system resilience and reliability. It supports automated selection of services for random failure injection, network latency simulation, database delay emulation, and Canary env. The architecture leverages a highly decoupled, event-driven approach to enable safe execution of chaos experiments and automatic rollbacks in case of incidents.

OutageBot is an internal incident management platform integrated with Slack, designed to streamline incident handling, communication, and post-incident analysis at Allegro.
The system automates incident lifecycle management - from detection and coordinated response to postmortem creation - improving operational efficiency, transparency, and system reliability.
Additionally, the platform supports incident trend analysis and early anomaly detection to proactively identify potential incidents.

An internal Status Page platform providing real-time visibility into the health and availability of Allegro core systems and services.
The platform aggregates data from monitoring, alerting, and event systems to present a unified, real-time view of system status.
It also serves as a reliability reporting tool, enabling engineering leadership and executives to analyze incidents, outages, and system stability over time.

Internal platform to manage and track system maintenance windows and change schedules. Helps SRE teams coordinate changes, reduce incidents, and communicate downtime to stakeholders. Ensures visibility into system operations and planned updates.

This project is centered on creating an online platform catering to corporate clients globally, facilitating the seamless purchase of flowers. Situated in the United Arab Emirates, the platform aims to provide a convenient and efficient solution for businesses worldwide to access and acquire floral arrangements for various corporate needs.

This project aims to assess business risk and Business Interruption Value (BIV) by incorporating key business parameters. Utilizing the NAICS code, the system employs specific calculation logic and formulas to generate comprehensive reports, offering valuable insights into risk evaluation for businesses.
The platform was developed for the US market, following regulatory and business requirements of American customers.

The project is a comprehensive platform designed to streamline the process of finding and managing cleaning services for flats/houses in England. Users, both cleaners, and clients, can seamlessly connect through the platform, facilitating the creation and management of cleaning jobs. The system incorporates a franchise model, allowing for scalability and regional expansion. An intuitive admin panel provides centralized control, ensuring efficient oversight and management of the entire operation. Additionally, the implementation of mail notifications enhances communication, keeping users informed and engaged throughout the cleaning service process. The platform was developed for the UK market in collaboration with English stakeholders.

This project focuses on verifying PKCS#12 certificates for all users and managing access to various systems. The goal is to ensure secure access and system integrity by validating key certificates. The project involved developing a robust backend system to support these functionalities, utilizing modern technologies to ensure reliability and scalability.

A logistics and transportation platform developed for the Estonian market, designed to support international cargo flows and cross-border parcel delivery. The system integrates with external partners (including AliExpress) and optimizes transportation workflows across multiple regions.
Development was performed in an outstaff model in close collaboration with an Estonian-based team.

The social aggregator project for condominiums in Dania integrates chats, posts, events, and essential services like cleaning and delivery. It aims to enhance community communication and convenience, providing residents with a unified platform for connecting and accessing necessary services.

The project involves building a secure cryptocurrency wallet risk assessment system and a crypto exchange platform. Development was carried out in collaboration with an international team based in Australia, requiring coordination across time zones and close communication during a limited delivery window.
The system focused on transaction security, risk evaluation, and integration with external compliance and payment services.

The project focuses on optimizing the internal transportation of documents within a bank's offices. This initiative aims to enhance efficiency, reduce delays, and promote a seamless workflow in handling crucial materials between different departments.