Kanstantsin Kamkou

Contributed to UDE STR data pipelines: rebuilt unstable GDC pipeline after a year of failed dev, stabilizing it pre-production. Delivered cold storage, large message (up to 64MB) handling, and package merging, enabling feature migration to other pipelines. Implemented end-to-end large message ingestion at API level. Improved DevOps by decoupling Flink configs, adding DFS support, and defining Flink upgrade procedures.

Real-Time Stream Processing; Automotive Payment Integration; Reactive Systems at Scale; Polyglot Backend Development; Legacy Modernization & Digitalization; Reliable Delivery

Contributed to the «TradeFinder» financial portal by migrating data pipelines, scripts (python, matlab, sh), and web interfaces to newer versions, addressing security issues and supporting ongoing maintenance and improvements.

As a core team member, responsible for the design, implementation, and maintenance of microservices within HSBC's (UK) Payments Orchestration Layer framework, a key part of their high-value, high-volume payments system. The architecture used gRPC, Kafka, Kafka Streams, and Oracle in a resilient, lowlatency mesh optimized for high throughput in a secure, regulated environment. Also provided Level 3 (L3) support.

Led an integration segment of the «Working Capital» financial project, focusing on aligning the existing ING flow with Amazon loan programs. Performed initial business analysis, and actively participated in coding, contributing significantly to the improvement and maintenance of related microservices.

Major migrations and enhancements of both backend and frontend legacy code for the medical application «TOMTEC-ARENA».

Designed and implemented ryd.pay (used by Mercedes-Benz & BP), incl. white-label APIs, payment flows, concurrent socket comms with pumps, and traceability. Built the first fleet management web app and a fuel station simulator for demos/integration. Developed full real-time infra for GPS map matching and overspeeding alerts using Flink, Flume & Kafka. Built complete BI infrastructure and its integrations.

- Took over the existing backend/frontend implementation from an outsourcing team - Led a successful backend refactoring phase for a three-year-old system - Reorganized deployment and code-quality processes - Introduced a Single Sign-On (SSO) web-framework, reducing integration time from a quarter to days - Interconnections between Business Intelligence (BI) and the Single Sign-On (SSO) framework.

- Bloopark systems GmbH & Co. KG / DE / e-commerce - Brigade / US / design studio - CHIP Digital GmbH / DE / media company - Meetville / US / online dating - Technopark Corp / US / consulting agency

- Presented my own CMS, "S-Motion," at TIBO-2005, the largest exhibition in Belarus in the field of telecommunications, banking, and office technologies. - Shell scripting on Linux for the detection of obsolete software on IBM servers. - Developed various web services and websites for large manufacturers and the national bank.

Java, C++ and Assembler x86