L2 Application Support Engineer (f/m/x)

Technologies we use

About the project

Your responsibilities

• Investigating and resolving production incidents and application issues within agreed service levels
• Collaborating with Development, Engineering, Infrastructure, SRE, and DevOps teams to ensure stable and reliable application performance
• Monitoring application health, analyzing trends, and identifying opportunities to improve stability, performance, and maintainability
• Implementing and enhancing monitoring, alerting, and observability capabilities across applications and supporting services
• Performing root-cause analysis and contributing to preventive actions for recurring issues
• Maintaining technical documentation and knowledge base articles, and sharing knowledge within the support team

Our requirements

• At least 5 years of experience in L2 Application Support or a similar technical production support role, with strong troubleshooting, problem-solving, incident management, and root-cause analysis skills
• Good technical understanding of Java and Spring Boot applications, with knowledge of Kubernetes and containerized environments
• Knowledge of MongoDB and Kafka, including a good understanding of Kafka's role in distributed systems
• Previous experience with cloud environments; experience with Azure, AWS, or GCP is highly preferred
• Experience with monitoring, alerting, and observability, including hands-on experience with at least one platform such as Elastic, Splunk, Dynatrace, or New Relic
• Proactive and reliability-focused mindset, with a strong focus on continuous improvement and the ability to collaborate closely with Development, Engineering, SRE, DevOps, and Infrastructure teams
• Fluency in both Polish and English, and willingness to work in a hybrid model from Warsaw, including participation in a 24/7 on-call rotation

What we offer

• Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
• Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
• We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
• Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
• Comfortable workplace – class A offices or remote work
• Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
• PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
• Investment in your growth – meetups, webinars, training platform and technology blog – you choose
• Fantastic atmosphere created by all Sii Power People