Tech Lead Java Developer

j-labs • Polish: C1 • Java • 1 month ago
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Salary
$96k – $108k per year
Location
In office (Kraków)
Seniority
Staff
Employment
Full-Time
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j-labs

j-labs is a Polish IT consultancy and software delivery center headquartered in Kraków that specializes in custom software development and IT outsourcing. Founded by software engineers, the company provides IT staff augmentation, dedicated engineering teams, and end-to-end project execution for international clients across industries like fintech, logistics, and retail. It focuses on core technology stacks such as Java, .NET, cloud, and microservices, emphasizing high engineering standards and collaborative client partnerships.
j-labs.pl • HQ: Kraków, Poland • Professional Services • Information Technology • Human Resources • IT Outsourcing • 11-50 employees

Dołącz do zespołu rozwijającego globalny system przetwarzania danych służący do kalkulacji ryzyka kredytowego kontrahentów w skali globalnej, w oparciu o zaawansowane modele analityczne.

To nie jest klasyczny backend.

Projekt koncentruje się na:

  • Apache Beam i Apache Flink

  • przetwarzaniu danych na dużą skalę

  • architekturze mikroserwisowej

  • migracji do Google Cloud Platform

System obsługuje tysiące klientów globalnie i jest krytyczny dla biznesu (high availability, performance, reliability).

Stack technologiczny: Java (17/21), Spring Boot, Spring Cloud, Apache Beam, Apache Flink, Google Cloud Platform, Redis, REST API, Ansible, Jenkins

Zadania w projekcie:

  • projektowanie i rozwój systemów distributed / data processing

  • budowa i utrzymanie mikroserwisów

  • podejmowanie decyzji architektonicznych (Tech Lead scope)

  • mentoring zespołu i wyznaczanie kierunku technicznego

  • praca end-to-end (design → development → deployment → monitoring)

  • odpowiedzialność za jakość (TDD, brak osobnego zespołu QA)

  • wsparcie środowiska produkcyjnego (ownership model)

Wymagania:

  • minimum 6 lat doświadczenia w Javie

  • doświadczenie w pracy w systemach rozproszonych

  • doświadczenie w pracy w architekturze mikroserwisowej

  • doświadczenie z chmurą (preferowana GCP)

  • stosowanie TDD w praktyce

  • znajomość DevOps / CI/CD

  • umiejętność podejmowania decyzji technicznych i mentoringu

  • bardzo dobre umiejętności komunikacyjne (praca globalna)

  • znajomość języków angielskiego i polskiego na poziomie minimum B2

  • otwartość na pracę z biura w Krakowie 2 razy w tygodniu

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