Teraz
WydarzeniaJulia Wieniawa i 22 nowe nazwiska na Great SeptemberSportŁódź szykuje sportowy finał wakacji. Sześć wydarzeń w trzy dniKulturaNowa gwiazda na Piotrkowskiej. Łódź uhonoruje legendę polskiego kinaWydarzeniaTo już dziś. Wielka parada samby przejdzie przez PiotrkowskąMiastoLamus wraca po ponad 100 latach. Łódź wyciąga rzekę spod ziemiSportMundial w Łodzi ma swój hymn. Zaśpiewała go BlankaWydarzeniaNajwiększa Parada Wolności w historii. Berlin, 13 platform i trzy scenyWydarzeniaCo robić w Łodzi w weekend 7–9 sierpnia? Ponad 50 wydarzeńMiastoKoniec bruku i starych torów. Rusza przebudowa WróblewskiegoWydarzeniaWampiry opanują EC1. TME Polówka szykuje nietypowy seansMiastoBałuty mają nową stulatkę. Pani Marianna świętuje piękny jubileuszWydarzeniaGigantyczny ptak nad Piotrkowską. Light Move Festival szykuje widowiskoWydarzeniaJulia Wieniawa i 22 nowe nazwiska na Great SeptemberSportŁódź szykuje sportowy finał wakacji. Sześć wydarzeń w trzy dniKulturaNowa gwiazda na Piotrkowskiej. Łódź uhonoruje legendę polskiego kinaWydarzeniaTo już dziś. Wielka parada samby przejdzie przez PiotrkowskąMiastoLamus wraca po ponad 100 latach. Łódź wyciąga rzekę spod ziemiSportMundial w Łodzi ma swój hymn. Zaśpiewała go BlankaWydarzeniaNajwiększa Parada Wolności w historii. Berlin, 13 platform i trzy scenyWydarzeniaCo robić w Łodzi w weekend 7–9 sierpnia? Ponad 50 wydarzeńMiastoKoniec bruku i starych torów. Rusza przebudowa WróblewskiegoWydarzeniaWampiry opanują EC1. TME Polówka szykuje nietypowy seansMiastoBałuty mają nową stulatkę. Pani Marianna świętuje piękny jubileuszWydarzeniaGigantyczny ptak nad Piotrkowską. Light Move Festival szykuje widowisko
IT i programowanie

IDEMIA Poland

Senior Java Developer - IoT

ŁódźPraca hybrydowaSenior

Since our founding, IDEMIA has been on a mission to unlock the world and make it safer through our cutting-edge identity technologies. Our technology leadership makes us the partner of choice for hundreds of governments and thousands of enterprises in over 180 countries, including some of the biggest and most influential brands in the world. In applying our unique expertise in biometrics and cryptography, we enable our clients to unlock simpler and safer ways to pay, connect, access, identify, travel and protect public places – at scale and in total security. Our teams work from 5 continents and speak 100+ different languages. We strongly believe that our diversity is a key driver of innovation and performance.

Purpose

Our goal is to develop a product that integrates with the ecosystem of various eSIM services. We provide an "entry point" that is a consistent and comprehensive set of services that enable the customer easily and transparently manage his eSIM devices. Our clients include mobile network operators, car manufacturers, payment terminal providers and many others.

From a technical point of view, we put a lot of effort into 3 elements: code quality - code review culture, static code analysis, various types of tests, automation - CI with code scans and automatic tests, everything as code - infrastructure as code, tests as code, and even code as code. As a team, we place great emphasis on sharing knowledge. We try to be as multifunctional as possible. In addition to your standard duties, you will take part in the requirements technical analysis, support QA team in their activities and many more.

You will be working on a real IoT platform, where backend services communicate with devices and cloud components. The system processes asynchronous, event-driven data flows, handles unstable connectivity, and runs in a cloud-native, containerized environment.

Key Missions

As a Senior Developer, you will:

  • design and evolve backend architecture for IoT systems,
  • implement complex, business-critical backend components,
  • make architectural and technical decisions within the team,
  • ensure system scalability, reliability and security,
  • review code and mentor Regular and Junior developers,
  • collaborate closely with QA engineers on test strategies and E2E scenarios,
  • actively contribute to CI/CD and deployment strategies,
  • support troubleshooting of production issues and root-cause analysis,
  • work closely with architects, product owners and team leader.

The role is based in Łódź, Poland. We are working in hybrid model with at least two visits at the office per week. If you prefer to work fully on site, our office is always open for you.

Wymagania

  • Strong, hands-on experience with Java 17 / Java 21
  • Commercial experience with Kotlin
  • Proven experience in designing and developing backend systems for distributed environments
  • Deep understanding of asynchronous and event-driven architectures
  • Ability to design clean, maintainable and testable codebases
  • Experience working with code reviews, technical leadership and mentoring
  • Strong understanding of system reliability, scalability and fault tolerance
  • Required hands-on: Spring ecosystem (Spring Boot, WebFlux), Docker, Kubernetes, Git/Bitbucket, CI/CD (Jenkins), Azure cloud, 12-factor app, MySQL/MariaDB, security fundamentals (TLS, cryptography, secrets management)
  • Nice to have: IoT platforms, messaging systems (Kafka, RabbitMQ, MQTT), event-driven eventually consistent systems, cloud architecture patterns, Camunda/BPMN, collaborating with QA and DevOps