Senior Java Developer / Site Reliability Engineer (SRE)

Infosys Limited; Warszawa; Hybrid; PLN 180,000 - 240,000; Full time

Job summary

A global leader in digital services is seeking a Senior Java Developer / Site Reliability Engineer (SRE) Consultant to join their team in Warsaw. This hybrid role requires expertise in Java development, microservices architecture, and strong troubleshooting skills in complex environments. The ideal candidate will help design and maintain resilient systems while ensuring high service availability. A comprehensive benefits package is offered.

Benefits

Language courses

Free medical care

Life insurance

My benefit platform

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.

Responsibilities

• Design, develop, and deploy multi-tiered web-based enterprise applications using Java and J2EE technologies.
• Provide 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.

Skills

Java development

Microservices architecture

Troubleshooting and debugging

Observability tools

Distributed systems

Database management (Oracle, MySQL, Cassandra)

Scripting (Python, Bash)

Agile methodologies

Job description

Overview

Senior Java Developer / Site Reliability Engineer (SRE) Consultant

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.

Job details

Location: Warsaw, Krakow, Wroclaw

Work arrangement: hybrid work (2-3 days per week in office)

Contract type: employment contract

Salary: base + financial bonus

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

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.