Senior IT Support Engineer

Senior IT Support Engineer📍 Warsaw, Poland (hybrid model: 3 days per week in the office)🌍 Global organization operating large-scale digital platformsAbout the RoleWe are looking for an experienced Senior Application Support Specialist to join a team responsible for supporting and optimizing mission-critical cloud-native applications running in a highly distributed environment. This role goes beyond traditional application support. You will act as a technical specialist focused on system reliability, performance optimization, observability, and incident management. Working closely with Development, SRE, DevOps, and Infrastructure teams, you will troubleshoot complex production issues, drive operational improvements, and contribute to the long-term stability and scalability of enterprise applications.The position offers a clear growth path toward Site Reliability Engineering (SRE) and is ideal for professionals who enjoy deep technical problem-solving, continuous improvement, and working in modern cloud environments.Your ResponsibilitiesManage and resolve application incidents within agreed service levels (SLAs)Investigate and resolve complex production issues affecting business-critical applicationsCoordinate with engineering, infrastructure, and platform teams to ensure effective incident resolutionCommunicate critical incidents, root causes, and improvement plans to senior stakeholdersMonitor application and system performance, identifying opportunities for improved stability, scalability, and supportabilityDevelop, maintain, and track Error Budgets for supported applicationsImplement and enhance monitoring, alerting, and observability solutionsLead support-related projects and operational improvement initiativesAnalyze support metrics, operational trends, and application performance dataCreate and maintain technical documentation, runbooks, and knowledge base articlesMentor junior team members and support knowledge-sharing activitiesParticipate in a 24/7 on-call rotation (typically one week per month)What We Are Looking For4+ years of experience in Application Support, Production Support, Technical Support, or a similar roleStrong troubleshooting and analytical problem-solving skillsExperience supporting cloud-based applications and distributed systemsUnderstanding of microservices architecture and modern application platformsAbility to work closely with Development, SRE, DevOps, and Infrastructure teamsExperience with monitoring, alerting, and observability toolsKnowledge of application performance analysis and incident management practicesStrong communication skills and the ability to collaborate with technical and business stakeholdersExcellent English communication skillsProactive mindset with a strong focus on continuous improvement and system reliabilityTechnical EnvironmentJavaSpring BootKubernetesMongoDBKafkaCloud platforms (Azure, AWS, or GCP)Microservices architectureMonitoring and observability solutionsNice to HaveExperience with Elastic, Splunk, Dynatrace, New Relic, or similar observability platformsFamiliarity with Site Reliability Engineering (SRE) principles and practicesExperience supporting high-availability, large-scale enterprise applicationsKnowledge of automation, monitoring, and operational excellence practicesExperience working in cloud-native environmentsWhat’s in It for YouOpportunity to support complex, large-scale cloud-native platformsExposure to modern technologies and engineering best practicesClose collaboration with Development, SRE, DevOps, and Infrastructure teamsClear career progression toward Site Reliability Engineering (SRE)Long-term engagement with the potential for permanent employmentInternational and collaborative work environmentProfessional development opportunities and access to experienced technology specialistsBenefits package including private healthcare and sports card optionsCo zyskasz dzięki aplikacji na ofertę Antal?Gdy Twoja aplikacja zostanie rozpatrzona pozytywnie (zostaniesz zaproszony/a do procesu), otrzymasz wsparcie Konsultanta/Konsultantki, który/a utrzyma z Tobą stały kontakt (mailowo lub telefonicznie), pomoże Ci przygotować się do rozmowy rekrutacyjnej z przyszłym pracodawcą oraz zatroszczy się o jakość procesu rekrutacyjnego, w którym aktualnie bierzesz udział. Kim jesteśmy? Jesteśmy liderem rekrutacji specjalistów i menedżerów oraz doradztwa w obszarze HR. Marka obecna jest w 35 krajach, w Polsce działa od 1996 roku. Przez ten czas zbudowaliśmy wiele karier kandydatów, dzięki elastycznemu i kompleksowemu podejściu do wszystkich rekrutacji. Antal tworzy ponad 130 profesjonalnych konsultantów ds. rekrutacji, którzy są oni nie tylko skutecznymi rekruterami, ale także wykwalifikowanymi doradcami, specjalizującymi się zarówno w zakresie wybranego sektora, jak i stanowiska.