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Application Maintenance Engineer
  • Łódź
Application Maintenance Engineer
Łódź, Łódź, Łódź Voivodeship, Polska
Fujitsu Poland Sp. z o.o
19. 3. 2026
Informacje o stanowisku

Application Maintenance Engineer

Miejsce pracy: Łódź

Technologies we use

Expected

  • Linux
  • Windows Server
  • Docker

Your responsibilities

  • Application Developer is responsible for maintaining, configuring, updating, and troubleshooting enterprise applications across Linux and Windows environments. Execute maintenance, configuration, and application update tasks according to documented procedures.
  • Perform advanced troubleshooting and analysis across application, OS, and container layers (Docker/Podman).Investigate and interpret application and system logs to identify root causes and propose corrective actions.
  • Validate configurations and verify service functionality after releases or infrastructure changes.
  • Apply independent judgement when resolving issues not fully covered by predefined instructions
  • Collaborate with the Lead and peers to refine and improve maintenance documentation.
  • Participate in change and release activities, including pre-checks, post-validation, and rollback coordination.
  • Communicate findings clearly to the Lead and related teams (Development, QA, Infrastructure).
  • Maintain accurate and up-to-date operational documentation.Contribute to process improvements and knowledge sharing within the maintenance team.

Our requirements

  • Hands-on experience in application operations, maintenance, or support.
  • Strong troubleshooting skills in Linux (openSUSE, SLES, or similar) and Windows Server environments.
  • Practical experience with Docker or Podman for managing containerized applications.
  • Understanding of network fundamentals, connectivity, and dependencies between services.
  • Experience analyzing system and application logs to identify and resolve issues.
  • Working knowledge of ServiceNow, Confluence, or similar enterprise systems.
  • Ability to update and validate applications following defined change and release procedures.
  • Strong communication skills and fluency in English (spoken and written).
  • Soft SkillsAnalytical and curious – investigates beyond the surface to understand root causes.
  • Structured and reliable – ensures that operational tasks follow process and documentation standards.
  • Collaborative – works effectively with colleagues and shares insights across teams.
  • Creative problem-solver – applies logic and initiative when encountering new issues.
  • Service-minded – committed to stability, responsiveness, and quality in operations.
  • Adaptable – comfortable working across diverse systems and environments.

What we offer

  • Health and well-being
  • Private medical care.
  • Group life insurance.
  • 24/7 Employee Support Program.
  • Flexibility at work
  • Work from modern offices with parking or from home.
  • Workation.
  • Time to recharge
  • 2 paid “happy hours” per month, adding up to 3 extra days off annually.
  • An additional day off after using your holiday entitlement – up to 30 days of leave per year.
  • Holiday allowance.
  • Perks and benefits
  • MyBenefit cafeteria.
  • Sport cards.
  • Growth opportunities
  • Free e-learning platforms.
  • Shared costs for professional training and certifications.
  • Making an impact
  • Responsible business initiatives.

Benefits

  • private medical care
  • life insurance

Fujitsu Poland Sp. z o.o

At Fujitsu, we believe work should empower you – not just professionally, but personally. Whether youre solving global challenges or improving your community, you’ll have the tools, support, and freedom to make a real impact.

We are Fujitsu – a global leader in Japanese information and communication technology (ICT). We deliver innovative solutions, advanced technology products, and services that empower businesses to thrive and create a sustainable future. With a focus on collaboration and trust, we work hand-in-hand with our customers to transform industries, communities, and the world.

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