INFOPLUS TECHNOLOGIESActive opening

Senior Java Performance Engineer

Kraków, PolandOn-siteSeniorFound today
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javaspring bootsql serverapache stormkafka streamsflinkdb2azure kubernetes service

Key Responsibilities

  • Develop and maintain Java 21 / Spring Boot batch and microservices for the KPS and XPOS platforms, including framework and dependency upgrades.

  • Operate, tune and troubleshoot our Apache Storm-based XPOS processing cluster, including worker balancing, restarts and alert tuning.

  • Analyze and optimize SQL performance on Azure SQL Hyperscale, including execution plans, indexing, query tuning and high-availability replica behavior, working directly with Microsoft engineering and support.

  • Migrate mainframe batch jobs and DB2 data flows to Azure (Hyperscale and Azure messaging), as part of the CPOS / XPOS modernization program.

  • Monitor the nightly performance batch against its service levels, lead root cause analysis of production incidents, and remediate open-source security findings (Nexus IQ / SCA) with the right risk sign-off.

Your Team

You will be a key member of the Portfolio Performance Reporting crew, part of Digital Intelligence & Advisor Platforms.

We build and run the platforms that calculate and report portfolio returns, asset allocation and holdings for financial advisors, operations teams and clients.

We are a collaborative, globally distributed team that takes pride in the quality of what we deliver, working closely with data, cloud, QA and application support colleagues.

Your Expertise

  • Degree level education; preferably Computer Science (bachelor's or master's degree).

  • Minimum of 18 years of hands-on Java development experience, ideally within banking or financial services.

  • Strong proficiency in Java (17/21) and Spring Boot, including large framework upgrades (must have).

  • Proven experience tuning SQL Server / Azure SQL, ideally Hyperscale, including reading execution plans, resolving plan regressions and CPU bottlenecks (must have).

  • Hands-on experience with distributed or stream processing such as Apache Storm, Kafka Streams or Flink (must have).

  • Experience with DB2 and with reading or migrating mainframe batch jobs (added advantage).

  • Experience with Azure Kubernetes Service, Helm and Azure AD / Entra ID integration (added advantage).

  • Experience remediating open-source vulnerabilities with Nexus IQ or similar SCA tools (added advantage).

  • Background in wealth management or portfolio performance, including returns calculation, holdings and valuation data (added advantage).

  • Have Agile, Test Driven Development and DevOps practices part of your DNA.

  • Demonstrate strong communication skills, both to senior management and teams, including working directly with external vendors.

  • Strong analytical and problem-solving skills and attention to detail.

Collaborative approach towards problem solving, working closely with other colleagues in the global team and sensitive towards diversity.

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INFOPLUS TECHNOLOGIESSenior Java Performance Engineer
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