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1 месяц назад

Backend Java Developer (Netty)

Формат работы
remote (только Poland)
Тип работы
fulltime
Грейд
senior
Английский
b2
Страна
Poland
Вакансия из списка Hirify.GlobalВакансия из Hirify Global, списка международных tech-компаний
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Описание вакансии

Текст:
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TL;DR

Backend Java Developer (Netty/MQTT): Building scalable client-server applications for embedded device integration with an accent on high-performance networking and communication protocols. Focus on implementing raw socket communication via Netty, designing scalable messaging logic using MQTT, and refactoring complex binary protocols.

Location: Remote (Poland)

Company

hirify.global is a fast-growing multinational company specializing in high-performance networking and embedded device integration.

What you will do

  • Lead the development and maintenance of backend services using Java (11-21) and Spring Boot.
  • Implement high-performance networking solutions using Netty to handle raw socket communication with embedded devices.
  • Design and develop scalable messaging logic using MQTT (Mosquitto/RabbitMQ) for service interaction.
  • Develop RESTful APIs to support mobile application functionality for Android and iOS.
  • Utilize State Machine patterns to manage device lifecycles and create technical documentation via Sequence Diagrams.
  • Manage database migrations with Flyway and MySQL, while monitoring system health via Prometheus and Grafana.

Requirements

  • Proven experience as a Java Backend Developer with a portfolio of scalable, production-ready applications.
  • Proficiency in Spring Boot and Java (versions 11 through 21).
  • Extensive experience with networking frameworks like Netty and protocols such as TCP/UDP and MQTT.
  • Strong experience in designing and developing RESTful APIs for mobile clients.
  • Experience with embedded device integration and handling low-level binary protocols.
  • Knowledge of MySQL, Flyway, and Firebase services (FCM/APNS).

Nice to have

  • Familiarity with DevOps tools including Docker, GitLab CI, and HAProxy.
  • Experience with Redis to enhance platform architecture.

Culture & Benefits

  • Competitive salary package and motivation scheme.
  • Health insurance and access to continuous professional development (training, certifications).
  • International career opportunities and interaction with global teams of professionals.
  • Corporate presents, awards, and years of service bonuses.

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