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Back-end Software Engineer with VoIP

1 miesiąc temu

Warszawa, Mazovia, Polska Software Mind Pełny etat

Software Mind is seeking a skilled Back-end Software Engineer with VoIP to join our team in Poland.

About the Project

We are working with leading mobile network operators in Poland and Europe to develop a highly scalable communication platform built entirely in public cloud with cloud native approach.

Your Role

  • You will join a team of software developers working on implementing new features for business cloud communication platform, including Contact Center features, Hunt Groups, etc.
  • You will work closely with other teams including DevOps and QA, and participate in sprint planning and reviews with the client.
  • We focus on autonomy, allowing you to decide how to perform tasks and take responsibility at each stage of the Software Development Life Cycle.
  • We value teamwork and expect the same from you – group brainstorming, code reviews, and pair programming sessions are regular tools used by our team.

Requirements

  • Experience creating server solutions with Java technology (JDK 11 and above) with an emphasis on backend, based on REST Web Service.
  • Experience with VoIP (SIP) and JAIN SIP standardized interface.
  • Experience working with public cloud infrastructure and services (AWS, GCP).
  • Experience with microservices architecture and Spring Boot framework.
  • Experience with message-based solutions (Kafka, Hazelcast, Redis, SNS/SQS, PubSub).

Additional Skills

  • Experience in event-driven programming.
  • Experience with Dropwizard framework.
  • Experience with Freeswitch call control interfaces (REST, ESL).
  • Knowledge of the architecture of GSM / 3G / LTE / IMS networks.
  • Knowledge of telecommunications protocols: SS7 (INAP / CAP / MAP), Diameter, SMPP.

Our Offer

  • Flexible employment and remote work.
  • International projects with leading global clients.
  • International business trips.
  • Non-corporate atmosphere.
  • Language classes.
  • Internal & external training.
  • Private healthcare and insurance.
  • Multisport card.
  • Well-being initiatives.