Maxim Konstantinov

Senior Java Software Engineer @ Sberbank

About

Java Developer with 8+ years of backend development experience. Employed at two banks and one company focused on cybersecurity. Java 8-24, Spring Boot, PostgreSQL, Redis, Kafka, Kubernetis, REST APIs, TestContainers, microservices architecture and distributed systems. In recent years, I implemented a money bag acceptance process by cash collectors in SBOL.pro, which reduced the time spent by 3.5 times. I also developed an SMS confirmation system processing 13.8% of all bank transactions. I am particularly interested in working with strong architecture, CI/CD, high-load systems, and real engineering challenges where quality and initiative are valued. I have worked in teams of 2 to 20 people. collaborating closely with analysts, DevOps, QA and managers. I integrate smoothly into new teams and take the initiative when needed.

Country

Netherlands

City

Amsterdam

Industry

Computer Software

Skill

DevOps, Spring Cloud, REST APIs, Microservices, Redis, Java, Kubernetes, Java 17, Java 21, Jenkins CI/CD, Java 24, Apache Kafka, Java 8, Java 11, C++, Spring remoting, Spring MVC, Maven, JUnit, Docker

Experience

Senior Java Software Engineer

Sberbank

2022-8 - Present · 4 yrs 2 mos

Tbilisi, Georgia

𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: Spring Boot, Kafka, PostgreSQL, REST, Cloud, Spring Security, Kubernetes, CI/CD ▪ Implemented SMS confirmation system processing 13.8% of all transactions ▪ Accelerated the process of accepting the bag by the collector from 8 to 3.5 minutes. ▪ Implemented biometric confirmation in SBOL.PRO, which took over 4.1% of all confirmations ▪ Built the logic of interaction between the confirmation module and fraud monitoring, through which 4 million people passed every day.

Senior Java Software Engineer

ATB Financial

2020-6 - 2022-5 · 2 yrs

Ankara, Türkiye

𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: Java 21, Spring Boot, Spring Cloud, RabbitMQ, Hibernate, REST APIs, PostgreSQL • Developed a personal account for an agent who brought more than 23,000 clients to the bank; • Built a scenario for servicing bank customers with an unsigned contract, which increased the number of sales by 6.3%; • Accelerated the testing process 3 times with the help of "synthetics"

Java Software Engineer

S-Terra CSP

2017-1 - 2020-4 · 3 yrs 4 mos

Moscow, Russia

𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: C++, Java 8-11, Spring Boot, Spring Data, Spring remoting, Spring MVC, MySQL, SWING • Developed a VPN monitoring system for 230 clients; • Set triggers and notifying administrators about problematic situations; • Accelerated the search for VPN clients by 2.4 times; • Built dashboard of VPN client usage status; • Developed of a VPN client management system