Position: Розробник Java, Kotlin
Category: Java
English level: upper
Years of experience: 5


Project: Swiftmile - charging stations for scooters

Improved performance load from 600 simultaneous working stations to 10k
Implemented integration tests, improved quality of codebase
Wrote custom functionality for firmware upgrade on station
Participated in developing of new distributed infrastructure in AWS

Technologies: AWS, Kotlin, Spring, Kafka, Postgresql, Protobuf, ReactJS, RabbitMQ
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Project: Appen (POC) - high-quality training data with our leading technology platform, managed services, and our global crowd to power AI globally.

Split monolith on microservices, speed up performance, fixed problem with data duplication
Covered with integration tests

Technologies: Java, Spring, Kafka, Kafka Streams, Avro, Postgresql
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Project: Advertiser - server for returning appropriate advertising format

Data dashboards
Supported existing codebase, developed new features on main advertising application

Technologies: Java, PHP, RabbitMQ, ReactJS, MySQL
Part time job, with load about 20 hours per month (discuss)