Application Production Support Engineer

About the employer:

 Our Client ranks at the top of the leading companies providing services at the highest level, allowing us to build modern and efficient businesses. The client's objective is to change business operational and technological models and adapt them to a rapidly changing world.

Responsibilities:

• provide Level 3 production support for Java-based, microservices-driven applications, ensuring their stability, availability, and performance,
• analyze incoming JIRA tickets, investigate issues end-to-end, and determine the most effective resolution path,
• diagnose defects across application components and implement fixes directly when feasible - such as minor code corrections or adjustments to database records,
• review and validate the behavior of interconnected microservices to identify root causes and prevent recurring issues,
• prepare clear technical analysis when escalations are required and collaborate with relevant development or production teams to drive resolution,
• monitor system health, participate in routine production maintenance tasks, and contribute to ongoing service reliability improvements, 
• support future automation initiatives aimed at reducing manual effort and streamlining maintenance processes,
• work closely with development, product, and cross-functional teams to ensure consistent quality and long-term system stability.

Requirements:

• strong hands-on background in Java, Spring Boot, and microservices-based architectures, with the ability to understand service interactions and make small code-level adjustments when needed,
• practical experience working with Kafka and a solid command of relational and NoSQL databases such as PostgreSQL, MySQL, MongoDB, Redis, and ElasticSearch, including handling data corrections or validation tasks,
• familiarity with production support workflows - analyzing JIRA tickets, diagnosing issues, applying fixes when possible, and escalating more complex cases with clear technical documentation,
• ability to navigate distributed systems, identify root causes, and ensure long-term stability of Java microservices,
• comfort working in a structured maintenance-driven environment, where most tasks involve stabilizing and improving existing applications rather than feature development,
• basic understanding of containerization tools (Docker, Kubernetes) - not for hands-on infrastructure work, but to understand how applications run in the environment,
• good communication skills and a collaborative mindset, enabling smooth cooperation with Development, Product, QA, and other cross-functional teams,
• a reliable, systematic working style suited to a calm, predictable 9 - 17 schedule, with readiness to contribute to future automation initiatives.

Our client offers:

• Contract of Employment or a B2B contract,
• extensive benefits package on CoE: Multisport Card, Lux Med medical healthcare including dental care, life insurance, cafeteria benefits,
• hybrid working model from office in Warsaw,
• training and continuous learning and certification opportunities,
• employee referral program.