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Salary
≈ $51k – $95k per year (Estimated)
Location
Hybrid (Warsaw, Poland)
Seniority
Senior · 5+ years exp
Employment
Contractor

First seen by Alion on Oct 15, 2026.

Overview
Company
Impact
Profile match
Infoplus Technologies is an information technology services company that provides engineers and consultants for data, cloud, cybersecurity and enterprise application projects. Its listings include GCP data engineers, CyberArk engineers, network engineers, Oracle procurement cloud specialists and Salesforce architects. The company is based in Kraków, Poland.

Title: Java SRE
Work Mode: Hybrid (2 days onsite is must)

Location: Warsaw, Poland

Key Requirements

·                  5 to 7 years of experience in Application Production Support or Application Maintenance roles.

  • Strong hands-on experience with Java applications and a solid understanding of application architecture.

  • Experience supporting enterprise applications in production environments.

  • Good knowledge of JVM concepts, application logs, and Java troubleshooting techniques.

  • Strong experience with SQL for data analysis and issue investigation.

  • Hands-on experience working in Unix/Linux environments, including server-level troubleshooting.

  • Experience managing and supporting applications hosted on large-scale server environments.

  • Strong analytical and problem-solving skills with the ability to perform root cause analysis.

  • Understanding of ITSM processes, including Incident, Problem, and Change Management.

  • Excellent verbal and written communication skills.

  • Ability to work effectively in a fast-paced production support environment and manage multiple priorities.

  • Experience working with monitoring, alerting, and ticketing tools is an advantage.

·                  Knowledge of production support best practices, operational governance, and service delivery processes.

 

Key Responsibilities

·                  Provide production application support for large-scale enterprise applications, ensuring high availability and system stability.

  • Monitor, investigate, and resolve production incidents within agreed service levels.

  • Perform troubleshooting, root cause analysis, and issue resolution across Java-based applications.

  • Support and maintain applications running on Unix/Linux environments.

  • Execute SQL queries for data analysis, validation, and issue investigation.

  • Monitor application performance, JVM health, and server resources to proactively identify potential issues.

  • Collaborate with development, infrastructure, and business teams to resolve complex production problems.

  • Support ITSM processes, including incident, problem, and change management activities.

  • Participate in application deployments, release support, and post-implementation monitoring.

  • Maintain operational documentation and contribute to continuous service improvement initiatives

Tech stack

  • Java
  • SRE
  • DevOps
  • Linux / Unix
  • SQL
  • Production Support
  • REST API
  • SOAP
  • SFTP
  • MySQL
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