Remote Senior Java Developer

Description:

• Kyivstar.Tech is seeking a Java Developer for a product team working with a group of internal products.
• The company is a Ukrainian hybrid IT company and a resident of Diia.City, being a subsidiary of Kyivstar, one of the largest telecommunications operators in Ukraine.
• The mission is to change lives in Ukraine and the world by creating technological solutions and products that realize the potential of companies and meet user needs.
• Over 600 specialists work daily in various fields, including mobile and web solutions, as well as the design, development, support, and maintenance of high-performance systems and services.
• The company believes in innovations that truly bring quality changes and constantly challenges traditional approaches and solutions.
• Each employee embodies an entrepreneurial culture that allows for continuous development and creation of new solutions.
• Responsibilities include developing high-load, distributed middleware and backend applications in the telecommunications field related to processing provisioning requests, order data-contents, voice, billing, and tariffication events.
• Participation in the design and development of microservices architecture, new business logic, and writing, building, deploying, optimizing, and reviewing code is required.
• The role also involves writing unit, integration, and load tests, collaborating with team members, and consulting on new and existing products for project documentation approval.

Requirements:

• A minimum of 3 years of programming experience is required.
• Knowledge of high-load systems is essential.
• Proficiency in Java Core, including JVM, Concurrency (practical experience required), Parallelism, Data Structures, Streams, Async (Future API), Patterns, and JDBC is mandatory.
• Skills in working with Akka (HTTP, Streams) are necessary.
• Experience in developing web applications (exchange formats — JSON/XML) and building REST architecture is required.
• Familiarity with NoSQL/SQL databases is essential.
• Knowledge of CI/CD processes and experience with Maven, Gradle, JUnit, and CI/CD tools is required.
• Experience with Grafana, ELK Stack, and Artifactory is necessary.
• Understanding of SMPP Protocol v3.4 is required.
• Knowledge and skills in working with data exchange brokers (Kafka, RabbitMQ) are necessary.
• Understanding of distributed systems and experience working with them is required.
• Experience with microservices, SOA, monoliths, design patterns, Event Sourcing, CQRS, and DDD is essential.
• Experience with Docker stack is required.
• English proficiency at a reading level is necessary.
• Understanding of microcontroller development and experience with Arduino will be considered a plus.

Benefits:

• The company offers the flexibility to work from the office or remotely, with the option to set up a comfortable workspace.
• Remote onboarding is provided for new employees.
• Performance bonuses are available for all employees, either annually or quarterly, depending on the role.
• Employees are offered training opportunities, including numerous internal resources, partner programs, and a personal library.
• Health and life insurance for employees is provided.
• A wellbeing program and corporate psychologist are available to support employee health.
• Compensation for mobile communication expenses with Kyivstar is included.