eugenek

Santander Bank DE ● Successfully implemented asynchronous mode for all Lending APIs microservices, enhancing the system's scalability and reliability ● Analyzed and restructured API architecture to optimize service integration and support 24x7 availability requirements ● Utilized Azure Service Bus and RabbitMQ for message brokering and ensured seamless interaction across multiple service orchestrators ● Delivered a high-performing API solution, contributing to improved system response times and operational efficiency Technologies: Java, Spring Boot, Spring Security, RabbitMQ, AWS, OpenAPI, Docker, Kubernetes

Inditex ● Spearheaded the digital transformation of the integrated stock management system, enabling real-time synchronization of inventory across store warehouses and online stockrooms ● Improved operational efficiency by optimizing stock allocation processes to support faster and more accurate order fulfillment for online and offline sales channels ● Collaborated closely with cross-functional teams to ensure seamless integration with Inditex's global retail systems, supporting thousands of transactions daily Technologies: Java, Spring Boot, MariaDB, MongoDB, Kafka, OpenAPI, Docker, Kubernetes

Development of online trading platform and underlying services ● Integrated Amazon validator for billing processing into WorldFirst/AliPay systems ● Integrated CoP (Confirmation of Payee) into WorldFirst/AliPay systems Technologies: Java, Spring Boot, SQL, Microservices, Ant Group Financial Architecture Stack

Flink Developing Flink Ad Platform of serving ads from an internal ads platform using a third party ad server via Flink consumer apps ● Built Ad Platform new backend for Flink delivery product, that immediately started raising money from brand advertising ● Architect and design an ad-tech platform and integrate internal clients with the ad-tech platform Technologies: Kotlin, Kotlin Coroutines, Spring Boot, WebFlux, Redis, Apache Kafka, OpenAPI, Docker Expedia Building automated GDPR workflow ● Automated manual workflow for GDPR, that allows customers to erase their personal data from Expedia systems ● Migrated production data from legacy hotels.com to Expedia systems Technologies: Java, Kotlin, Spring Boot, Spring Data, SQL, AWS, Docker, Kubernetes

Nordstrom ● Building product core for Nordstrom Big Data Platform ● Designed and implemented a high-performance ETL solution using Kafka to publish real-time change events from Postgres RDS to a Kafka Avro event for a faster inventory availability view Technologies: Java, Spring Boot, Apache Kafka, SQL, Docker, Kubernetes Western Digital ● Developed “MyCloud” application for Western Digital which is a cloud base solution for backing up and storing your media ● Responsible for the delivery of the cloud-based backend Technologies: Java, Spring Boot, AWS, Cognito, DynamoDB, Docker, Kubernetes

● Building Core for BigData platform to store billions of product prices ● Automated manual workflow for data moderators, which reduced expenses up to $50 000 for the company ● Integrated new platform with Android and iOS clients ● System and architecture design ● Creating API for mobile applications and for customers web application Technologies: Java, RxJava, Spring Boot, AWS, AWS Redshift, Couchbase

Building backend for e-commerce store and creating product search ● Leading a team of 4 engineers ● Provided assistance and guidance to team members on development areas ● Suggested recommendations for release management, technical support procedures and application development ● Created a set of microservices for product creation and search for the most commonly known Maxeda DIY Group retailer’s e-stores Technologies: Java, Spring Boot, Spring Cloud, MySQL, Docker, AWS

Building and supporting application billing core for computation for insurance clients.

● Building and supporting application billing core for computation for insurance clients Technologies: Java, Spring MVC, Hibernate, JSF, Oracle DB