Job Description

Role: Senior Java Developer / Site Reliability Engineer (SRE)

Location: Warsaw, Krakow, Wroclaw

Type of work: hybrid work (2-3 days per week in office)

Contract: only contract of employment

Salary: base + financial bonus

Note: for this role we cannot consider candidates who require company support to legally live and work in Poland

This role is level 3 support for all PPT products. Is needed to take part in on-call rotation.

Europe standard working hours.

On call- ~1 weekend/month can be on-call support required in 9-5 CEST

About The Role

We are seeking a highly skilled and proactive Senior Java Developer with strong Site Reliability Engineering (SRE) capabilities to join our team. This role is ideal for someone who thrives in a fast-paced environment, enjoys solving complex problems, and is passionate about building resilient, scalable systems.

Responsibilities

• Design, develop, and deploy multi-tiered web-based enterprise applications using Java and J2EE technologies (Spring, Hibernate, JDBC, JNDI, IBM MQ Series, Web Services – SOAP/REST).
• Provide architectural and practical guidance to improve system resiliency, performance, efficiency, and cost optimization.
• Troubleshoot and debug complex production issues across distributed systems.
• Participate in Agile ceremonies and contribute to analysis, design, coding, and unit testing phases.
• Support production environments, manage incidents, and perform root cause analysis.
• Monitor system health using tools like Splunk, Prometheus, Grafana.
• Work with messaging and data technologies such as Kafka, Cassandra, Oracle, and MySQL.
• Develop scripts in Python and/or Bash for automation and operational tasks.
• Collaborate with cross-functional teams to ensure high availability and reliability of services.
• (Optional) Contribute to mobile SDK development if applicable.

Required Qualifications

• Proven experience in Java development and microservices architecture.
• Strong troubleshooting and debugging skills in complex environments.
• Hands-on experience with observability tools (Splunk, Prometheus, Grafana).
• Familiarity with distributed systems and messaging platforms (Kafka).
• Experience with databases: Oracle, MySQL, Cassandra.
• Proficiency in scripting languages (Python and/or Bash).
• Solid understanding of Agile methodologies.
• Exposure to mobile SDKs is a plus.

We Offer

• Working with a state-of-the-art hotel property management system.
• Opportunity to do something that has high impact and game changing in our industry
• Big benefit package: language courses, free medical care, life insurance, my benefit platform

Why Infosys

Infosys is a global leader in next-generation digital services and consulting. We enable clients in 46 countries to navigate their digital transformation. With nearly four decades of experience in managing the systems and workings of global enterprises, we expertly steer our clients through their digital journey. We do it by enabling the enterprise with an AI-powered core that helps prioritize the execution of change. We also empower the business with agile digital at scale to deliver unprecedented levels of performance and customer delight. Our always-on learning agenda drives their continuous improvement through building and transferring digital skills, expertise, and ideas from our innovation ecosystem and permanent contract.

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Engineering and Information Technology

Industries

• IT Services and IT Consulting

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