Technical Lead Java Developer
Offer summary

(Summary generated by AI based on the full job description)

The project involves complex, high-volume travel booking and transactional systems. Key technologies include Java, Spring Boot, Google Cloud Platform, Kubernetes, REST, gRPC. Responsibilities cover backend development, cloud deployment, CI/CD participation, and production support. Benefits include Platinum private healthcare, development budget, life insurance.

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Technical Lead Java Developer

Company: TENARAI TECHNOLOGIES SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ

from: 28 July 2026
to: 27 August 2026
160 - 180net (+ VAT)/ hr.B2B contract (full-time)
Offer parameters
level:lead • manager
working mode:remote • hybrid
Kraków, Podgórze
Kraków, PodgórzeSaska 25DView on map

Requirements

Expected technologies

Java
Spring Boot
Google Cloud Platform
Docker
Kubernetes
GitHub
WireMock

Optional technologies

Jenkins
GitHub Actions
Python
Bash

Our requirements

  • 8+ years of experience with Java and Spring Boot.
  • Experience building microservices, REST APIs, and gRPC services.
  • Hands-on experience with GCP, Docker, and Kubernetes.
  • Knowledge of GitHub, Jenkins, or GitHub Actions.
  • Familiarity with monitoring tools such as Prometheus and Stackdriver/Cloud Monitoring.
  • Basic scripting skills in Python or Bash.
  • Experience with WireMock and performance testing.
  • Must possess a legal work permit in Poland

Your responsibilities

  • Design, develop, test and maintain backend applications using Java and Spring Boot.
  • Build and support RESTful APIs and gRPC services.
  • Develop solutions deployed on Google Cloud Platform (GCP) and Kubernetes.
  • Collaborate with QA, SRE, and Product teams.
  • Participate in CI/CD processes, deployments, and production support.
  • Provide support during release cycles, including smoke testing, manual validation.
  • Troubleshoot issues using logs, metrics, and monitoring tools.
  • Conduct code reviews, mentor junior developers, and participate in an on-call rotation.
Company

About the project

A large-scale, highly complex initiative focused on the development and maintenance of core internal systems. The project ensures seamless communication and integration between various backend components responsible for critical, high-volume travel and transactional operations.
Key Functional Areas:
  • System Integration: Facilitating robust and efficient communication between internal microservices and proprietary components.
  • Booking & Ticketing Lifecycle: Supporting core transactional flows, including ticket reservations, refunds, and exchanges.
  • Search & Optimization: Powering backend algorithms designed to find and generate the most optimal flight connections.
  • Financial Calculations: Handling complex pricing engines, fare structures, and diverse cost-assessment calculations.
  • What we offer

    • General benefits - depends on the form of employment.
    • Hybrid / remote work.
    • Attractively located office with collaboration spaces.
    • Onsite parking space for employees.
    • Referral program with financial bonus.
    • Life Insurance.
    • Budget for development (including language courses and others), clear career path with the possibility to gain experience in international environment.
    • Access to internal Learning Platform with multiple trainings oriented for professional growth.
    • Access to MyBenefit platform (Multisport included).
    • Team Building activities.
    • Charity initiatives.
    • Working environment promoting diversity and inclusion.
    • Private medical care - Platinum Package.

    Benefits

    • sharing the costs of sports activities
    • private medical care
    • sharing the costs of foreign language classes
    • sharing the costs of professional training & courses
    • life insurance
    • remote work opportunities
    • flexible working time
    • integration events
    • coffee / tea
    • drinks
    • parking space for employees

    Recruitment stages

    • 1.
      Recruitment Interview

    TENARAI TECHNOLOGIES SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ

    We design and implement the modern architecture and AI solutions that help businesses turn industry disruption into market leadership and competitive advantage.
    (Human ingenuity)AI at Tenarai, we characterize a unique way of combining our human expertise with AI capabilities. Our approach integrates elite engineering talent, deep domain knowledge, and specific customer context to deliver more impactful outcomes for our clients.
    Technical Lead Java Developer
    160–180 zł / hr. (B2B)
    I apply to:
    TENARAI TECHNOLOGIES SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
    Kraków, Podgórze
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