Ivan Maltsev Email & Phone Number

Новосибирск, Новосибирская Область, Россия

• I have been developing and designing one of the most significant systems of the bank - a web application for servicing individuals, which is the main one for the work of more than 5,000 operator employees• Participated in the design and evaluation of tasks• Optimized part of the app and significantly accelerated data loading by 200% and reduced the load on the database.• Developed and carried out code refactoring for product migration from Oracle SQL to PostgreSQL with simultaneous operation of two databases in production• Conducted a code review, wrote integration tests using JUnit• Technologies on the project: - Java 17, Spring (Boot, MVC, Data, Security, Cloud), Docker, Kubernetes, RabbitMQ, Kafka, Redis, OracleSQL, PostgreSQL, Git

Новосибирск, Новосибирская Область, Россия

• Developed and maintained a product based on online video conferences• I have refactored and optimized the web application, thereby speeding up the loading of content by 30%• Integrated a cryptocurrency payment method (payment system) using ERC 20, BEP20 (Binance-Tokens) using Moralis.API• Decomposed and evaluated tasks, conducted a code review• I was introducing interns and junior developers to the position• Participated in the construction and improvement of (Agile) Scrum processes and supervised the closing of sprints by the team• Technologies on the project: Java(jsp), Spring Framework, MySQL, JavaScript, HTML, CSS, Gradle, Git

Новосибирск, Новосибирская Область, Россия

• Engaged in the development and support of the server side of a multi-user web game in Java and JavaScript• Designed and developed a system of multiplayer, tournament battles in realtime between players• Technologies on the project: Java, Jetty, Jersey, MySQL, Maven, Git

Новосибирск, Новосибирская Область, Россия

• Developed and maintained web applications using PHP and Javascript